SMBMS项目(完整版从0到1)
SMBMS项目
1.项目搭建
1.框架及数据库
- 整体框架图
- MySQL数据库源码
CREATE DATABASE `smbms`;
USE `smbms`;
DROP TABLE IF EXISTS `smbms_address`;
CREATE TABLE `smbms_address` (
`id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
`contact` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '联系人姓名',
`addressDesc` VARCHAR(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '收货地址明细',
`postCode` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '邮编',
`tel` VARCHAR(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '联系人电话',
`createdBy` BIGINT(20) DEFAULT NULL COMMENT '创建者',
`creationDate` DATETIME DEFAULT NULL COMMENT '创建时间',
`modifyBy` BIGINT(20) DEFAULT NULL COMMENT '修改者',
`modifyDate` DATETIME DEFAULT NULL COMMENT '修改时间',
`userId` BIGINT(20) DEFAULT NULL COMMENT '用户ID',
PRIMARY KEY (`id`)
) ENGINE=INNODB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
INSERT INTO `smbms_address`(`id`,`contact`,`addressDesc`,`postCode`,`tel`,`createdBy`,`creationDate`,`modifyBy`,`modifyDate`,`userId`) VALUES (1,'王丽','北京市东城区东交民巷44号','100010','13678789999',1,'2016-04-13 00:00:00',NULL,NULL,1),(2,'张红丽','北京市海淀区丹棱街3号','100000','18567672312',1,'2016-04-13 00:00:00',NULL,NULL,1),(3,'任志强','北京市东城区美术馆后街23号','100021','13387906742',1,'2016-04-13 00:00:00',NULL,NULL,1),(4,'曹颖','北京市朝阳区朝阳门南大街14号','100053','13568902323',1,'2016-04-13 00:00:00',NULL,NULL,2),(5,'李慧','北京市西城区三里河路南三巷3号','100032','18032356666',1,'2016-04-13 00:00:00',NULL,NULL,3),(6,'王国强','北京市顺义区高丽营镇金马工业区18号','100061','13787882222',1,'2016-04-13 00:00:00',NULL,NULL,3);
DROP TABLE IF EXISTS `smbms_bill`;
CREATE TABLE `smbms_bill` (
`id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
`billCode` VARCHAR(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '账单编码',
`productName` VARCHAR(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '商品名称',
`productDesc` VARCHAR(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '商品描述',
`productUnit` VARCHAR(10) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '商品单位',
`productCount` DECIMAL(20,2) DEFAULT NULL COMMENT '商品数量',
`totalPrice` DECIMAL(20,2) DEFAULT NULL COMMENT '商品总额',
`isPayment` INT(10) DEFAULT NULL COMMENT '是否支付（1：未支付 2：已支付）',
`createdBy` BIGINT(20) DEFAULT NULL COMMENT '创建者（userId）',
`creationDate` DATETIME DEFAULT NULL COMMENT '创建时间',
`modifyBy` BIGINT(20) DEFAULT NULL COMMENT '更新者（userId）',
`modifyDate` DATETIME DEFAULT NULL COMMENT '更新时间',
`providerId` BIGINT(20) DEFAULT NULL COMMENT '供应商ID',
PRIMARY KEY (`id`)
) ENGINE=INNODB AUTO_INCREMENT=19 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
INSERT INTO `smbms_bill`(`id`,`billCode`,`productName`,`productDesc`,`productUnit`,`productCount`,`totalPrice`,`isPayment`,`createdBy`,`creationDate`,`modifyBy`,`modifyDate`,`providerId`) VALUES (2,'BILL2016_002','香皂、肥皂、药皂','日用品-皂类','块','1000.00','10000.00',2,1,'2016-03-23 04:20:40',NULL,NULL,13),(3,'BILL2016_003','大豆油','食品-食用油','斤','300.00','5890.00',2,1,'2014-12-14 13:02:03',NULL,NULL,6),(4,'BILL2016_004','橄榄油','食品-进口食用油','斤','200.00','9800.00',2,1,'2013-10-10 03:12:13',NULL,NULL,7),(5,'BILL2016_005','洗洁精','日用品-厨房清洁','瓶','500.00','7000.00',2,1,'2014-12-14 13:02:03',NULL,NULL,9),(6,'BILL2016_006','美国大杏仁','食品-坚果','袋','300.00','5000.00',2,1,'2016-04-14 06:08:09',NULL,NULL,4),(7,'BILL2016_007','沐浴液、精油','日用品-沐浴类','瓶','500.00','23000.00',1,1,'2016-07-22 10:10:22',NULL,NULL,14),(8,'BILL2016_008','不锈钢盘碗','日用品-厨房用具','个','600.00','6000.00',2,1,'2016-04-14 05:12:13',NULL,NULL,14),(9,'BILL2016_009','塑料杯','日用品-杯子','个','350.00','1750.00',2,1,'2016-02-04 11:40:20',NULL,NULL,14),(10,'BILL2016_010','豆瓣酱','食品-调料','瓶','200.00','2000.00',2,1,'2013-10-29 05:07:03',NULL,NULL,8),(11,'BILL2016_011','海之蓝','饮料-国酒','瓶','50.00','10000.00',1,1,'2016-04-14 16:16:00',NULL,NULL,1),(12,'BILL2016_012','芝华士','饮料-洋酒','瓶','20.00','6000.00',1,1,'2016-09-09 17:00:00',NULL,NULL,1),(13,'BILL2016_013','长城红葡萄酒','饮料-红酒','瓶','60.00','800.00',2,1,'2016-11-14 15:23:00',NULL,NULL,1),(14,'BILL2016_014','泰国香米','食品-大米','斤','400.00','5000.00',2,1,'2016-10-09 15:20:00',NULL,NULL,3),(15,'BILL2016_015','东北大米','食品-大米','斤','600.00','4000.00',2,1,'2016-11-14 14:00:00',NULL,NULL,3),(16,'BILL2016_016','可口可乐','饮料','瓶','2000.00','6000.00',2,1,'2012-03-27 13:03:01',NULL,NULL,2),(17,'BILL2016_017','脉动','饮料','瓶','1500.00','4500.00',2,1,'2016-05-10 12:00:00',NULL,NULL,2),(18,'BILL2016_018','哇哈哈','饮料','瓶','2000.00','4000.00',2,1,'2015-11-24 15:12:03',NULL,NULL,2);
DROP TABLE IF EXISTS `smbms_provider`;
CREATE TABLE `smbms_provider` (
`id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
`proCode` VARCHAR(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '供应商编码',
`proName` VARCHAR(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '供应商名称',
`proDesc` VARCHAR(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '供应商详细描述',
`proContact` VARCHAR(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '供应商联系人',
`proPhone` VARCHAR(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '联系电话',
`proAddress` VARCHAR(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '地址',
`proFax` VARCHAR(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '传真',
`createdBy` BIGINT(20) DEFAULT NULL COMMENT '创建者（userId）',
`creationDate` DATETIME DEFAULT NULL COMMENT '创建时间',
`modifyDate` DATETIME DEFAULT NULL COMMENT '更新时间',
`modifyBy` BIGINT(20) DEFAULT NULL COMMENT '更新者（userId）',
PRIMARY KEY (`id`)
) ENGINE=INNODB AUTO_INCREMENT=16 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
INSERT INTO `smbms_provider`(`id`,`proCode`,`proName`,`proDesc`,`proContact`,`proPhone`,`proAddress`,`proFax`,`createdBy`,`creationDate`,`modifyDate`,`modifyBy`) VALUES (1,'BJ_GYS001','北京三木堂商贸有限公司','长期合作伙伴，主营产品:茅台、五粮液、郎酒、酒鬼酒、泸州老窖、赖茅酒、法国红酒等','张国强','13566667777','北京市丰台区育芳园北路','010-58858787',1,'2013-03-21 16:52:07',NULL,NULL),(2,'HB_GYS001','石家庄帅益食品贸易有限公司','长期合作伙伴，主营产品:饮料、水饮料、植物蛋白饮料、休闲食品、果汁饮料、功能饮料等','王军','13309094212','河北省石家庄新华区','0311-67738876',1,'2016-04-13 04:20:40',NULL,NULL),(3,'GZ_GYS001','深圳市泰香米业有限公司','初次合作伙伴，主营产品：良记金轮米,龙轮香米等','郑程瀚','13402013312','广东省深圳市福田区深南大道6006华丰大厦','0755-67776212',1,'2014-03-21 16:56:07',NULL,NULL),(4,'GZ_GYS002','深圳市喜来客商贸有限公司','长期合作伙伴，主营产品：坚果炒货.果脯蜜饯.天然花茶.营养豆豆.特色美食.进口食品.海味零食.肉脯肉','林妮','18599897645','广东省深圳市福龙工业区B2栋3楼西','0755-67772341',1,'2013-03-22 16:52:07',NULL,NULL),(5,'JS_GYS001','兴化佳美调味品厂','长期合作伙伴，主营产品：天然香辛料、鸡精、复合调味料','徐国洋','13754444221','江苏省兴化市林湖工业区','0523-21299098',1,'2015-11-22 16:52:07',NULL,NULL),(6,'BJ_GYS002','北京纳福尔食用油有限公司','长期合作伙伴，主营产品：山茶油、大豆油、花生油、橄榄油等','马莺','13422235678','北京市朝阳区珠江帝景1号楼','010-588634233',1,'2012-03-21 17:52:07',NULL,NULL),(7,'BJ_GYS003','北京国粮食用油有限公司','初次合作伙伴，主营产品：花生油、大豆油、小磨油等','王驰','13344441135','北京大兴青云店开发区','010-588134111',1,'2016-04-13 00:00:00',NULL,NULL),(8,'ZJ_GYS001','慈溪市广和绿色食品厂','长期合作伙伴，主营产品：豆瓣酱、黄豆酱、甜面酱，辣椒，大蒜等农产品','薛圣丹','18099953223','浙江省宁波市慈溪周巷小安村','0574-34449090',1,'2013-11-21 06:02:07',NULL,NULL),(9,'GX_GYS001','优百商贸有限公司','长期合作伙伴，主营产品：日化产品','李立国','13323566543','广西南宁市秀厢大道42-1号','0771-98861134',1,'2013-03-21 19:52:07',NULL,NULL),(10,'JS_GYS002','南京火头军信息技术有限公司','长期合作伙伴，主营产品：不锈钢厨具等','陈女士','13098992113','江苏省南京市浦口区浦口大道1号新城总部大厦A座903室','025-86223345',1,'2013-03-25 16:52:07',NULL,NULL),(11,'GZ_GYS003','广州市白云区美星五金制品厂','长期合作伙伴，主营产品：海绵床垫、坐垫、靠垫、海绵枕头、头枕等','梁天','13562276775','广州市白云区钟落潭镇福龙路20号','020-85542231',1,'2016-12-21 06:12:17',NULL,NULL),(12,'BJ_GYS004','北京隆盛日化科技','长期合作伙伴，主营产品：日化环保清洗剂，家居洗涤专卖、洗涤用品网、墙体除霉剂、墙面霉菌清除剂等','孙欣','13689865678','北京市大兴区旧宫','010-35576786',1,'2014-11-21 12:51:11',NULL,NULL),(13,'SD_GYS001','山东豪克华光联合发展有限公司','长期合作伙伴，主营产品：洗衣皂、洗衣粉、洗衣液、洗洁精、消杀类、香皂等','吴洪转','13245468787','山东济阳济北工业区仁和街21号','0531-53362445',1,'2015-01-28 10:52:07',NULL,NULL),(14,'JS_GYS003','无锡喜源坤商行','长期合作伙伴，主营产品：日化品批销','周一清','18567674532','江苏无锡盛岸西路','0510-32274422',1,'2016-04-23 11:11:11',NULL,NULL),(15,'ZJ_GYS002','乐摆日用品厂','长期合作伙伴，主营产品：各种中、高档塑料杯，塑料乐扣水杯（密封杯）、保鲜杯（保鲜盒）、广告杯、礼品杯','王世杰','13212331567','浙江省金华市义乌市义东路','0579-34452321',1,'2016-08-22 10:01:30',NULL,NULL);
DROP TABLE IF EXISTS `smbms_role`;
CREATE TABLE `smbms_role` (
`id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
`roleCode` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '角色编码',
`roleName` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '角色名称',
`createdBy` BIGINT(20) DEFAULT NULL COMMENT '创建者',
`creationDate` DATETIME DEFAULT NULL COMMENT '创建时间',
`modifyBy` BIGINT(20) DEFAULT NULL COMMENT '修改者',
`modifyDate` DATETIME DEFAULT NULL COMMENT '修改时间',
PRIMARY KEY (`id`)
) ENGINE=INNODB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
INSERT INTO `smbms_role`(`id`,`roleCode`,`roleName`,`createdBy`,`creationDate`,`modifyBy`,`modifyDate`) VALUES (1,'SMBMS_ADMIN','系统管理员',1,'2016-04-13 00:00:00',NULL,NULL),(2,'SMBMS_MANAGER','经理',1,'2016-04-13 00:00:00',NULL,NULL),(3,'SMBMS_EMPLOYEE','普通员工',1,'2016-04-13 00:00:00',NULL,NULL);
DROP TABLE IF EXISTS `smbms_user`;
CREATE TABLE `smbms_user` (
`id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
`userCode` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '用户编码',
`userName` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '用户名称',
`userPassword` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '用户密码',
`gender` INT(10) DEFAULT NULL COMMENT '性别（1:女、 2:男）',
`birthday` DATE DEFAULT NULL COMMENT '出生日期',
`phone` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '手机',
`address` VARCHAR(30) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '地址',
`userRole` BIGINT(20) DEFAULT NULL COMMENT '用户角色（取自角色表-角色id）',
`createdBy` BIGINT(20) DEFAULT NULL COMMENT '创建者（userId）',
`creationDate` DATETIME DEFAULT NULL COMMENT '创建时间',
`modifyBy` BIGINT(20) DEFAULT NULL COMMENT '更新者（userId）',
`modifyDate` DATETIME DEFAULT NULL COMMENT '更新时间',
PRIMARY KEY (`id`)
) ENGINE=INNODB AUTO_INCREMENT=16 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
INSERT INTO `smbms_user`(`id`,`userCode`,`userName`,`userPassword`,`gender`,`birthday`,`phone`,`address`,`userRole`,`createdBy`,`creationDate`,`modifyBy`,`modifyDate`) VALUES (1,'admin','系统管理员','1234567',1,'1983-10-10','13688889999','北京市海淀区成府路207号',1,1,'2013-03-21 16:52:07',NULL,NULL),(2,'liming','李明','0000000',2,'1983-12-10','13688884457','北京市东城区前门东大街9号',2,1,'2014-12-31 19:52:09',NULL,NULL),(5,'hanlubiao','韩路彪','0000000',2,'1984-06-05','18567542321','北京市朝阳区北辰中心12号',2,1,'2014-12-31 19:52:09',NULL,NULL),(6,'zhanghua','张华','0000000',1,'1983-06-15','13544561111','北京市海淀区学院路61号',3,1,'2013-02-11 10:51:17',NULL,NULL),(7,'wangyang','王洋','0000000',2,'1982-12-31','13444561124','北京市海淀区西二旗辉煌国际16层',3,1,'2014-06-11 19:09:07',NULL,NULL),(8,'zhaoyan','赵燕','0000000',1,'1986-03-07','18098764545','北京市海淀区回龙观小区10号楼',3,1,'2016-04-21 13:54:07',NULL,NULL),(10,'sunlei','孙磊','0000000',2,'1981-01-04','13387676765','北京市朝阳区管庄新月小区12楼',3,1,'2015-05-06 10:52:07',NULL,NULL),(11,'sunxing','孙兴','0000000',2,'1978-03-12','13367890900','北京市朝阳区建国门南大街10号',3,1,'2016-11-09 16:51:17',NULL,NULL),(12,'zhangchen','张晨','0000000',1,'1986-03-28','18098765434','朝阳区管庄路口北柏林爱乐三期13号楼',3,1,'2016-08-09 05:52:37',1,'2016-04-14 14:15:36'),(13,'dengchao','邓超','0000000',2,'1981-11-04','13689674534','北京市海淀区北航家属院10号楼',3,1,'2016-07-11 08:02:47',NULL,NULL),(14,'yangguo','杨过','0000000',2,'1980-01-01','13388886623','北京市朝阳区北苑家园茉莉园20号楼',3,1,'2015-02-01 03:52:07',NULL,NULL),(15,'zhaomin','赵敏','0000000',1,'1987-12-04','18099897657','北京市昌平区天通苑3区12号楼',2,1,'2015-09-12 12:02:12',NULL,NULL);
- MySQL数据库框架
项目如何搭建？
- 考虑是否使用Maven；
2.项目搭建
- 新建一个maven项目模块；
- 导入相应的web.xml文件；
- 最后框架如图；
- 配置Tomcat；
- 测试项目是否可运行：
- 导入项目中需要的jar包——在pom.xml中，以maven方式导入；
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>SMBMS</artifactId>
<version>1.0-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.3</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.47</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp.jstl</groupId>
<artifactId>jstl-api</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.20</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
</dependencies>
</project>
- 创建项目包结构
pojo/entity——实体类；dao——具体数据库操作层(增删改查)；service——业务层；test/view——表示层 / 测试层；utils——工具类；filter——过滤层，放置过滤器；servlet——控制层，调用业务层代码；
- 编写实体类
- User.java
package com.github.pojo;
import lombok.Data;
import java.util.Date;
/**
* 使用Lombok的jar包，可以不用写get/set、toString等方法
*/
@Data
public class User {
private Integer id; // 主键ID
private String userCode; // 用户编码
private String userName; // 用户名称
private String userPassword; // 用户密码
private Integer gender; // 性别
private Date birthday; // 出生日期
private String phone; // 手机
private String address; // 地址
private Integer userRole; // 用户角色
private Integer createdBy; // 创建者
private Date creationDate; // 创建时间
private Integer modifyBy; // 更新者
private Date modifyDate; // 更新时间
private Integer age; // 年龄
private String userRoleName; // 用户角色名称
public Integer getAge() {
Date date = new Date();
Integer age = date.getYear()-birthday.getYear();
return age;
}
}
- Bill.java
package com.github.pojo;
import lombok.Data;
import java.math.BigDecimal;
import java.util.Date;
@Data
public class Bill {
private Integer id; // 主键ID
private String billCode; // 账单编码
private String productName; // 商品名称
private String productDesc; // 商品描述
private String productUnit; // 商品单位
private BigDecimal productCount; // 商品数量
private BigDecimal totalPrice; // 商品总额
private int isPayment; // 是否支付
private Integer createdBy; // 创建者
private Date creationDate; //创建时间
private Integer modifyBy; // 更新者
private Date modifyDate; // 更新时间
private String providerName; // 供应商名称
private Integer providerId; // 供应商ID
}
- Role.java
package com.github.pojo;
import lombok.Data;
import java.util.Date;
@Data
public class Role {
private Integer id; // 主键ID
private String roleCode; // 角色编码
private String roleName; // 角色名称
private Integer createdBy; // 创建者
private Date creationDate; // 创建时间
private Integer modifyBy; // 修改者
private Date modifyDate; // 修改时间
}
- Provider.java
package com.github.pojo;
import lombok.Data;
import java.util.Date;
@Data
public class Provider {
private Integer id; // 主键ID
private String proCode; // 供应商编码
private String proName; // 供应商名称
private String proDesc; // 供应商详细描述
private String proContact; // 供应商联系人
private String proPhone; // 联系电话
private String proAddress; // 地址
private String proFax; // 传真
private Integer createdBy; // 创建者
private Date creationDate; // 创建时间
private Date modifyDate; // 更新时间
private Integer modifyBy; //更新者
}
-
编写基础公共类
- 数据库配置文件——db.properties
driver=com.mysql.jdbc.Driver # 在和mysql传递数据的过程中，使用unicode编码格式，并且字符集设置为utf-8 url=jdbc:mysql://localhost:3306/smbms?useSSL=true&useUnicode=true&characterEncoding=utf-8 username=root password=root- 编写数据库的公共类——BaseDao.java
package com.github.dao; import java.io.IOException; import java.io.InputStream; import java.sql.*; import java.util.Properties; /** * @Description: 操作数据库的公共类 */ public class BaseDao { private static String driver; private static String url; private static String username; private static String password; // 静态代码块,类加载时就初始化了 static{ Properties properties = new Properties(); // 通过类加载器读取对应的资源 InputStream is = BaseDao.class.getClassLoader().getResourceAsStream("db.properties"); try{ properties.load(is); } catch (IOException e) { e.printStackTrace(); } driver = properties.getProperty("driver"); url = properties.getProperty("url"); username = properties.getProperty("username"); password = properties.getProperty("password"); } // 获取数据库的链接 public static Connection getConnection(){ Connection connection = null; try { Class.forName(driver); connection = DriverManager.getConnection(url, username, password); } catch (Exception e) { e.printStackTrace(); } return connection; } // 编写查询公共类 public static ResultSet execute(Connection connection,PreparedStatement preparedStatement , ResultSet rs, String sql, Object[] params) throws SQLException { // 预编译的SQL，在后面直接执行就行了 preparedStatement = connection.prepareStatement(sql); for (int i = 0; i < params.length; i++) { // setObject,占位符从1开始，但是数组是从0开始 preparedStatement.setObject(i+1,params[i]); } rs = preparedStatement.executeQuery(); return rs; } // 编写查询公共类 public static int execute(Connection connection, PreparedStatement preparedStatement, String sql, Object[] params) throws SQLException { preparedStatement = connection.prepareStatement(sql); for (int i = 0; i < params.length; i++) { // setObject,占位符从1开始，但是数组是从0开始 preparedStatement.setObject(i+1,params[i]); } int updateRows = preparedStatement.executeUpdate(); return updateRows; } // 释放资源 public static boolean closeResult(Connection connection, PreparedStatement preparedStatement, ResultSet resultSet){ boolean flag = true; if(resultSet != null){ try { resultSet.close(); // GC回收 resultSet = null; } catch (SQLException e) { e.printStackTrace(); flag = false; } } if(preparedStatement != null){ try { preparedStatement.close(); // GC回收 preparedStatement = null; } catch (SQLException e) { e.printStackTrace(); flag = false; } } if(connection != null){ try { connection.close(); // GC回收 connection = null; } catch (SQLException e) { e.printStackTrace(); flag = false; } } return flag; } }- 编写字符编码过滤；
package com.github.filter; import javax.servlet.*; import java.io.IOException; public class CharacterEncodingFilter implements Filter { public void init(FilterConfig filterConfig) throws ServletException { } public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); response.setContentType("text/html;charset=UTF-8"); chain.doFilter(request,response); } public void destroy() { } }<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" version="4.0"> <!-- 字符编码过滤器 --> <filter> <filter-name>/characterEncodingFilter</filter-name> <filter-class>com.github.filter.CharacterEncodingFilter</filter-class> </filter> <filter-mapping> <filter-name>/characterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app> -
导入相关前端素材；
2.登录流程实现
1.项目实现
- 框架流程
- 编写前端页面——login.jsp；
<%@ page contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>系统登录 - 超市订单管理系统</title>
<link type="text/css" rel="stylesheet" href="${pageContext.request.contextPath }/css/style.css" />
<script type="text/javascript">
/* if(top.location!=self.location){
top.location=self.location;
} */
</script>
</head>
<body class="login_bg">
<section class="loginBox">
<header class="loginHeader">
<h1>超市订单管理系统</h1>
</header>
<section class="loginCont">
<form class="loginForm" action="${pageContext.request.contextPath }/login.do" name="actionForm" id="actionForm" method="post" >
<div class="info">${error }</div>
<div class="inputbox">
<label for="userCode">用户名：</label>
<input type="text" class="input-text" id="userCode" name="userCode" placeholder="请输入用户名" required/>
</div>
<div class="inputbox">
<label for="userPassword">密码：</label>
<input type="password" id="userPassword" name="userPassword" placeholder="请输入密码" required/>
</div>
<div class="subBtn">
<input type="submit" value="登录"/>
<input type="reset" value="重置"/>
</div>
</form>
</section>
</section>
</body>
</html>
- 设置首页——web.xml；
<!-- 设置欢迎页面 -->
<welcome-file-list>
<welcome-file>login.jsp</welcome-file>
</welcome-file-list>
- 编写dao层登录用户登录的接口；
package com.github.dao.user;
import com.github.pojo.User;
import java.sql.Connection;
public interface UserDao {
// 得到要登录的用户
public User getLoginUser(Connection connection,String userCode) throws Exception;
}
- 编写dao接口的实现类；
package com.github.dao.user;
import com.github.dao.BaseDao;
import com.github.pojo.User;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
public class UserDaoImpl implements UserDao{
public User getLoginUser(Connection connection, String userCode)
throws Exception {
PreparedStatement pstm = null;
ResultSet rs = null;
User user = null;
if(connection != null) {
String sql = "select * from smbms_user where userCode=?";
Object[] params = {userCode};
rs = BaseDao.execute(connection, pstm, rs, sql, params);
if(rs.next()) {
user = new User();
user.setId(rs.getInt("id"));
user.setUserCode(rs.getString("userCode"));
user.setUserName(rs.getString("userName"));
user.setUserPassword(rs.getString("userPassword"));
user.setGender(rs.getInt("gender"));
user.setBirthday(rs.getDate("birthday"));
user.setPhone(rs.getString("phone"));
user.setAddress(rs.getString("address"));
user.setUserRole(rs.getInt("userRole"));
user.setCreatedBy(rs.getInt("createdBy"));
user.setCreationDate(rs.getTimestamp("creationDate"));
user.setModifyBy(rs.getInt("modifyBy"));
user.setModifyDate(rs.getTimestamp("modifyDate"));
}
BaseDao.closeResult(null,pstm,rs);
}
return user;
}
}
- 业务层接口
package com.github.service.user;
import com.github.pojo.User;
public interface UserService {
// 用户登录
public User login(String userCode, String userPassword);
}
- 业务实现类
package com.github.service.user;
import com.github.dao.BaseDao;
import com.github.dao.user.UserDao;
import com.github.dao.user.UserDaoImpl;
import com.github.pojo.User;
import org.junit.Test;
import java.sql.Connection;
public class UserServiceImpl implements UserService{
// 业务层都会调用dao层，所以需要引入Dao层
private UserDao userDao;
public UserServiceImpl(){
userDao = new UserDaoImpl();
}
public User login(String userCode, String userPassword) {
Connection connection = null;
User user = null;
try {
connection = BaseDao.getConnection();
// 通过业务层调用对应的具体的数据库操作
user = userDao.getLoginUser(connection,userCode);
} catch (Exception e) {
e.printStackTrace();
} finally {
BaseDao.closeResult(connection,null,null);
}
// 匹配密码
if(null != user){
if(!user.getUserPassword().equals(userPassword))
user = null;
}
return user;
}
@Test
public void test(){
UserServiceImpl userService = new UserServiceImpl();
User admin = userService.login("admin", "1234gjhgjhg56");
System.out.println(admin.getUserPassword());
}
}
- 编写Servlet
package com.github.servlet.user;
import com.github.pojo.User;
import com.github.service.user.UserServiceImpl;
import com.github.util.Constants;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
public class LoginServlet extends HttpServlet {
// servlet:控制层，调用 业务层代码
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
super.doGet(req,resp);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
System.out.println("--------LoginServlet----------");
// 获取用户名和密码
String userCode = req.getParameter("userCode");
String userPassword = req.getParameter("userPassword");
// 调用业务层，进行用户密码匹配
UserServiceImpl userService = new UserServiceImpl();
User user = userService.login(userCode, userPassword);
if(user != null){ // 登录成功
// 将用户信息放入session
req.getSession().setAttribute(Constants.USER_SESSION,user);
// 页面跳转 —— frame.jsp
resp.sendRedirect("jsp/frame.jsp");
} else {
// 页面跳转 —— login.jsp
req.setAttribute("error","用户名或密码错误！");
req.getRequestDispatcher("login.jsp").forward(req,resp);
}
}
}
package com.github.util;
public class Constants {
public final static String USER_SESSION = "userSession";
}
- 注册servlet
<!-- servlet -->
<servlet>
<servlet-name>LoginServlet</servlet-name>
<servlet-class>com.github.servlet.user.LoginServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>LoginServlet</servlet-name>
<url-pattern>/login.do</url-pattern>
</servlet-mapping>
- 测试访问，确保以上功能成功！
2.产生报错及解决
如果登录后，左上角时间显示乱码，请修改head.jsp文件，具体代码如下：
<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>超市订单管理系统</title>
<link type="text/css" rel="stylesheet" href="${pageContext.request.contextPath }/css/style.css" />
<link type="text/css" rel="stylesheet" href="${pageContext.request.contextPath }/css/public.css" />
<script>
function tick() {
var today=new Date();
var month=today.getMonth()+1;<!--getMonth显示当前月份-1，所以要+1才能显示当前月份-->
var year, date, hours, minutes, seconds;
var intHours, intMinutes, intSeconds;
var week=new Array()
// 显示几天为星期几
week[0]="星期天 ";
week[1]="星期一 ";
week[2]="星期二 ";
week[3]="星期三 ";
week[4]="星期四 ";
week[5]="星期五 ";
week[6]="星期六 ";
intHours = today.getHours();
intMinutes = today.getMinutes();
intSeconds = today.getSeconds();
year=today.getFullYear();
date=today.getDate();
var time;
if (intHours == 0) {
hours = "00:";
}
else if (intHours < 10) {
hours = "0" + intHours+":";
}
else {
hours = intHours + ":";
}
if (intMinutes < 10) {
minutes = "0"+intMinutes+":";
}
else {
minutes = intMinutes+":";
}
if (intSeconds < 10) {
seconds = "0"+intSeconds+" ";
}
else {
seconds = intSeconds+" ";
}
//根据不同的时间显示不同的问候。
//下面采用自己总结的测试纠正法对time进行赋值
time="午夜好";
if(today.getHours()<=22) time="晚上好";
if(today.getHours()<=19) time="傍晚好";
if(today.getHours()<=17) time="下午好";
if(today.getHours()<=14) time="中午好";
if(today.getHours()<=12) time="上午好";
if(today.getHours()<=8) time="早上好";
if(today.getHours()<=5) time="凌晨好";
timeString="今天是："+year+"年"+month+"月"+date+"日 "+hours+minutes+seconds+week[today.getDay()]+time;
Clock.innerHTML = timeString;
window.setTimeout("tick();", 1000);
}
window.onload = tick;
</script>
</head>
<body>
<!--头部-->
<header class="publicHeader">
<h1>超市订单管理系统</h1>
<div class="publicHeaderR">
<p><span>下午好！</span><span style="color: #fff21b"> ${userSession.userName }</span> , 欢迎你！</p>
<a href="${pageContext.request.contextPath }/jsp/logout.do">退出</a>
</div>
</header>
<!--时间-->
<section class="publicTime">
<span id="Clock"></span>
<a href="#">温馨提示：为了能正常浏览，请使用高版本浏览器！（IE10+）</a>
</section>
<!--主体内容-->
<section class="publicMian ">
<div class="left">
<h2 class="leftH2"><span class="span1"></span>功能列表 <span></span></h2>
<nav>
<ul class="list">
<li ><a href="${pageContext.request.contextPath }/jsp/bill.do?method=query">订单管理</a></li>
<li><a href="${pageContext.request.contextPath }/jsp/provider.do?method=query">供应商管理</a></li>
<li><a href="${pageContext.request.contextPath }/jsp/user.do?method=query">用户管理</a></li>
<li><a href="${pageContext.request.contextPath }/jsp/pwdmodify.jsp">密码修改</a></li>
<li><a href="${pageContext.request.contextPath }/jsp/logout.do">退出系统</a></li>
</ul>
</nav>
</div>
<input type="hidden" id="path" name="path" value="${pageContext.request.contextPath }"/>
<input type="hidden" id="referer" name="referer" value="<%=request.getHeader("Referer")%>"/>
报错：
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
- 是tomcat找不到MYSQL JAR包的问题。
- 解决方法：把mysql-connector-java-5.1.47-bin.jar拷贝到tomcat下lib目录就可以了。
- 下载地址：Maven。
网页显示报错：
此URL不支持Http方法POST
- 解决方法：将 .java 文件中的 doGet 改成 doPost ；
3.注销及权限过滤
注销功能：移除session，返回登录页面。
- 编写Servlet类
package com.github.servlet.user;
import com.github.util.Constants;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
public class LogoutServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
// 移除session
req.getSession().removeAttribute(Constants.USER_SESSION);
resp.sendRedirect(req.getContextPath() + "/login.jsp");
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
}
}
- 注册servlet
<servlet>
<servlet-name>LogoutServlet</servlet-name>
<servlet-class>com.github.servlet.user.LogoutServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>LogoutServlet</servlet-name>
<url-pattern>/jsp/logout.do</url-pattern>
</servlet-mapping>
登录拦截优化
package com.github.filter;
import com.github.pojo.User;
import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
public class SysFilter implements Filter {
public void init(FilterConfig filterConfig) throws ServletException {
}
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
System.out.println("-------SysFilter--------");
HttpServletRequest rq = (HttpServletRequest) request;
HttpServletResponse rp = (HttpServletResponse) response;
User userSession = (User) rq.getSession().getAttribute("userSession");
if(userSession == null){
rp.sendRedirect("/smbms/error.jsp");
} else {
chain.doFilter(request,response);
}
}
public void destroy() {
}
}
- error.jsp
<%@ page contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1>请登录后再访问该页面！</h1>
<a href="login.jsp">返回</a>
</body>
</html>
- 注册filter
<!-- 用户登录过滤器 -->
<filter>
<filter-name>SysFilter</filter-name>
<filter-class>com.github.filter.SysFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>SysFilter</filter-name>
<url-pattern>/jsp/*</url-pattern>
</filter-mapping>
- 运行结果
4.密码实现修改
- 导入前端素材；
- /jsp/pwdmodify.jsp
<li><a href="${pageContext.request.contextPath }/jsp/user.do?method=query">用户管理</a></li>
- 从底层开始编写；
- 编写Dao层接口
package com.github.dao.user;
import com.github.pojo.User;
import java.sql.Connection;
import java.sql.SQLException;
public interface UserDao {
// 得到要登录的用户
public User getLoginUser(Connection connection,String userCode) throws SQLException;
// 修改当前用户密码
public int updatePwd(Connection connection,int id,String pwd) throws SQLException;
}
- UserDao 接口实现类
package com.github.dao.user;
import com.github.dao.BaseDao;
import com.github.pojo.User;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class UserDaoImpl implements UserDao{
// 得到要登录的用户
public User getLoginUser(Connection connection, String userCode)
throws SQLException {
PreparedStatement pstm = null;
ResultSet rs = null;
User user = null;
if(connection != null) {
String sql = "select * from smbms_user where userCode=?";
Object[] params = {userCode};
rs = BaseDao.execute(connection, pstm, rs, sql, params);
if(rs.next()) {
user = new User();
user.setId(rs.getInt("id"));
user.setUserCode(rs.getString("userCode"));
user.setUserName(rs.getString("userName"));
user.setUserPassword(rs.getString("userPassword"));
user.setGender(rs.getInt("gender"));
user.setBirthday(rs.getDate("birthday"));
user.setPhone(rs.getString("phone"));
user.setAddress(rs.getString("address"));
user.setUserRole(rs.getInt("userRole"));
user.setCreatedBy(rs.getInt("createdBy"));
user.setCreationDate(rs.getTimestamp("creationDate"));
user.setModifyBy(rs.getInt("modifyBy"));
user.setModifyDate(rs.getTimestamp("modifyDate"));
}
BaseDao.closeResult(null,pstm,rs);
}
return user;
}
// 修改当前用户密码
public int updatePwd(Connection connection, int id, String pwd) throws SQLException {
System.out.println("UserServlet1:"+pwd);
PreparedStatement pstm = null;
int flag = 0;
if(connection != null){
String sql = "update smbms_user set userPassword= ? where id = ?";
Object[] params = {pwd,id};
flag = BaseDao.execute(connection, pstm, sql, params);
BaseDao.closeResult(null, pstm, null);
}
return flag;
}
}
- 编写service层接口
package com.github.service.user;
import com.github.pojo.User;
public interface UserService {
// 用户登录
public User login(String userCode, String userPassword);
// 根据user修改密码
public boolean updatePwd(int id,String pwd);
}
- UserService 接口实现类
package com.github.service.user;
import com.github.dao.BaseDao;
import com.github.dao.user.UserDao;
import com.github.dao.user.UserDaoImpl;
import com.github.pojo.User;
import org.junit.Test;
import java.sql.Connection;
import java.sql.SQLException;
public class UserServiceImpl implements UserService{
// 业务层都会调用dao层，所以需要引入Dao层
private UserDao userDao;
public UserServiceImpl(){
userDao = new UserDaoImpl();
}
public User login(String userCode, String userPassword) {
Connection connection = null;
User user = null;
try {
connection = BaseDao.getConnection();
// 通过业务层调用对应的具体的数据库操作
user = userDao.getLoginUser(connection,userCode);
} catch (Exception e) {
e.printStackTrace();
} finally {
BaseDao.closeResult(connection,null,null);
}
// 匹配密码
if(null != user) {
if (!user.getUserPassword().equals(userPassword)) {
user = null;
}
}
return user;
}
public boolean updatePwd(int id, String pwd) {
System.out.println("UserServlet2:" + pwd);
boolean flag = false;
Connection connection = null;
try{
connection = BaseDao.getConnection();
if(userDao.updatePwd(connection,id,pwd) > 0) {
flag = true;
}
}catch (Exception e) {
e.printStackTrace();
}finally{
BaseDao.closeResult(connection, null, null);
}
return flag;
}
}
- 编写servlet层
package com.github.servlet.user;
import com.github.pojo.User;
import com.github.service.user.UserService;
import com.github.service.user.UserServiceImpl;
import com.github.util.Constants;
import com.mysql.jdbc.StringUtils;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
/**
* @Description: 实现servlet复用
*/
public class UserServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
super.doPost(request,response);
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String method = request.getParameter("method");
System.out.println("method----> " + method);
if(method != null && method.equals("savepwd")){
this.updatePwd(request, response);
}
}
public void updatePwd(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 从Session中取ID
Object o = request.getSession().getAttribute(Constants.USER_SESSION);
String newpassword = request.getParameter("newpassword");
System.out.println("UserServlet3:"+newpassword);
boolean flag = false;
if(o != null && !StringUtils.isNullOrEmpty(newpassword)){
UserService userService = new UserServiceImpl();
flag = userService.updatePwd(((User)o).getId(),newpassword);
if(flag){
request.setAttribute(Constants.SYS_MESSAGE, "修改密码成功,请退出并使用新密码重新登录！");
// 密码修改成功，session注销
request.getSession().removeAttribute(Constants.USER_SESSION);
}else{
request.setAttribute(Constants.SYS_MESSAGE, "修改密码失败！");
}
}else{
request.setAttribute(Constants.SYS_MESSAGE, "修改密码失败！");
}
request.getRequestDispatcher("pwdmodify.jsp").forward(request, response);
}
}
- 注册servlet
<servlet>
<servlet-name>UserServlet</servlet-name>
<servlet-class>com.github.servlet.user.UserServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>UserServlet</servlet-name>
<url-pattern>/jsp/user.do</url-pattern>
</servlet-mapping>
- 由于验证旧密码的实现在下一节，此处需要修改前端界面代码如下：
- pwdmodify.js
- pwdmodify.jsp
<%@ page contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@include file="/jsp/common/head.jsp"%>
<div class="right">
<div class="location">
<strong>你现在所在的位置是:</strong>
<span>密码修改页面</span>
</div>
<div class="providerAdd">
<form id="userForm" name="userForm" method="post" action="${pageContext.request.contextPath }/jsp/user.do">
<input type="hidden" name="method" value="savepwd">
<!--div的class 为error是验证错误，ok是验证成功-->
<div class="info">${message}</div>
<%--<div class="">--%>
<%-- <label for="oldPassword">旧密码：</label>--%>
<%-- <input type="password" name="oldpassword" id="oldpassword" value="">--%>
<%-- <font color="red"></font>--%>
<%--</div>--%>
<div>
<label for="newPassword">新密码：</label>
<input type="password" name="newpassword" id="newpassword" value="">
<font color="red"></font>
</div>
<div>
<label for="rnewpassword">确认新密码：</label>
<input type="password" name="rnewpassword" id="rnewpassword" value="">
<font color="red"></font>
</div>
<div class="providerAddBtn">
<!--<a href="#">保存</a>-->
<input type="button" name="save" id="save" value="保存" class="input-button">
</div>
</form>
</div>
</div>
</section>
<%@include file="/jsp/common/foot.jsp" %>
<script type="text/javascript" src="${pageContext.request.contextPath }/js/pwdmodify.js"></script>
- 测试代码
5.Ajax验证旧密码实现
- 使用阿里巴巴的fastjson
<!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.76</version>
</dependency>
- 注意：
在导入maven的同时，请将相应的jar包放入Tomcat的lib目录下！
- 修改前端页面
- 添加修改旧密码的servlet类
package com.github.servlet.user;
import com.alibaba.fastjson.JSONArray;
import com.github.pojo.User;
import com.github.service.user.UserService;
import com.github.service.user.UserServiceImpl;
import com.github.util.Constants;
import com.mysql.jdbc.StringUtils;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Map;
public class UserServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String method = request.getParameter("method");
System.out.println("method----> " + method);
if(method != null && method.equals("savepwd")){
this.updatePwd(request, response);
} else if(method.equals("pwdmodify") && method!=null){
this.pwdModify(request,response);
}
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String method = request.getParameter("method");
System.out.println("method----> " + method);
if(method != null && method.equals("savepwd")){
this.updatePwd(request, response);
} else if(method.equals("pwdmodify") && method!=null){
this.pwdModify(request,response);
}
}
// 修改密码
public void updatePwd(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 从Session中取ID
Object o = request.getSession().getAttribute(Constants.USER_SESSION);
String newpassword = request.getParameter("newpassword");
System.out.println("UserServlet3:"+newpassword);
boolean flag = false;
if(o != null && !StringUtils.isNullOrEmpty(newpassword)){
UserService userService = new UserServiceImpl();
flag = userService.updatePwd(((User)o).getId(),newpassword);
if(flag){
request.setAttribute(Constants.SYS_MESSAGE, "修改密码成功,请退出并使用新密码重新登录！");
// 密码修改成功，session注销
request.getSession().removeAttribute(Constants.USER_SESSION);
}else{
request.setAttribute(Constants.SYS_MESSAGE, "修改密码失败！");
}
}else{
request.setAttribute(Constants.SYS_MESSAGE, "修改密码失败！");
}
request.getRequestDispatcher("pwdmodify.jsp").forward(request, response);
}
// 验证旧密码,session中有用户的密码
public void pwdModify(HttpServletRequest req, HttpServletResponse resp) throws IOException {
// 从Session中取ID
Object o = req.getSession().getAttribute(Constants.USER_SESSION);
String oldpassword = req.getParameter("oldpassword");
Map<String, String> resultMap = new HashMap<String, String>();
// session过期
if(null == o ){
resultMap.put("result", "sessionerror");
}else if(StringUtils.isNullOrEmpty(oldpassword)){
// 旧密码输入为空
resultMap.put("result", "error");
}else{
String sessionPwd = ((User)o).getUserPassword();
if(oldpassword.equals(sessionPwd)){
resultMap.put("result", "true");
}else{
// 旧密码输入不正确
resultMap.put("result", "false");
}
}
resp.setContentType("application/json");
PrintWriter outWriter = resp.getWriter();
// JSONArray 阿里巴巴的JSON工具类
outWriter.write(JSONArray.toJSONString(resultMap));
outWriter.flush();
outWriter.close();
}
}
- 由于网页经常报错405。
- 解决方法：
dopost，doget两个方法都写，使dopost，doget进行互换即可。如果有更好的方法，请留言指正！
- 添加默认Session过期时间；
<!-- 默认Session过期时间:真实业务请求 -->
<session-config>
<session-timeout>30</session-timeout>
</session-config>
- 测试运行
6.用户管理实现
- 思路框架
- 导入分页工具类——
PageSupport.java；
package com.github.util;
public class PageSupport {
// 当前页码-来自于用户输入
private int currentPageNo = 1;
// 总数量（表）
private int totalCount = 0;
// 页面容量
private int pageSize = 0;
// 总页数-totalCount/pageSize（+1）
private int totalPageCount = 1;
public int getCurrentPageNo() {
return currentPageNo;
}
public void setCurrentPageNo(int currentPageNo) {
if(currentPageNo > 0){
this.currentPageNo = currentPageNo;
}
}
public int getTotalCount() {
return totalCount;
}
public void setTotalCount(int totalCount) {
if(totalCount > 0){
this.totalCount = totalCount;
// 设置总页数
this.setTotalPageCountByRs();
}
}
public int getPageSize() {
return pageSize;
}
public void setPageSize(int pageSize) {
if(pageSize > 0){
this.pageSize = pageSize;
}
}
public int getTotalPageCount() {
return totalPageCount;
}
public void setTotalPageCount(int totalPageCount) {
this.totalPageCount = totalPageCount;
}
public void setTotalPageCountByRs(){
if(this.totalCount % this.pageSize == 0){
this.totalPageCount = this.totalCount / this.pageSize;
}else if(this.totalCount % this.pageSize > 0){
this.totalPageCount = this.totalCount / this.pageSize + 1;
}else{
this.totalPageCount = 0;
}
}
}
- 用户列表页面导入；
1.获取用户数量
- UserDao.java
// 查询用户总数
public int getUserCount(Connection connection, String userName, int userRole)throws Exception;
- UserDaoImpl.java
// 根据用户名或角色查询用户总数
public int getUserCount(Connection connection, String userName, int userRole) throws Exception {
PreparedStatement pstm = null;
ResultSet rs = null;
int count=0;
if(connection!=null){
StringBuffer sql = new StringBuffer();
sql.append("select count(1) as count from smbms_user u,smbms_role r where u.userRole = r.id");
// 存放参数
List<Object> list = new ArrayList<Object>();
if(!StringUtils.isNullOrEmpty(userName)){
sql.append(" and u.userName like ?");
// index:0
list.add("%" + userName + "%");
}
if(userRole>0){
sql.append(" and u.userRole = ?");
// index:1
list.add(userRole);
}
// 将List转换为数组
Object[] prams = list.toArray();
// 输出最后拼接后的sql语句
System.out.println("sql----->" + sql.toString());
rs = BaseDao.execute(connection,pstm,rs,sql.toString(),prams);
// 从结果集中获取最后的数量
if(rs.next()){
count = rs.getInt("count");
}
BaseDao.closeResult(null,pstm,rs);
}
return count;
}
- UserService.java
// 根据条件查询出用户表记录数
public int getUserCount(String queryUserName, int queryUserRole);
- UserServiceImpl.java
//
public int getUserCount(String queryUserName, int queryUserRole) {
int count = 0;
Connection connection = null;
System.out.println("queryUserName----->" + queryUserName);
System.out.println("queryUserRole----->" + queryUserRole);
try {
connection = BaseDao.getConnection();
count = userDao.getUserCount(connection,queryUserName,queryUserRole);
} catch (Exception e) {
e.printStackTrace();
} finally {
BaseDao.closeResult(connection,null,null);
}
return count;
}
2.获取用户列表
- UserDao.java
// 通过条件查询-userList
public List<User> getUserList(Connection connection, String userName, int userRole, int currentPageNo, int pageSize)throws Exception;
- UserDaoImpl.java
public List<User> getUserList(Connection connection, String userName, int userRole, int currentPageNo, int pageSize) throws Exception {
PreparedStatement pstm = null;
ResultSet rs = null;
List<User> userList = new ArrayList<User>();
if(connection != null){
StringBuffer sql = new StringBuffer();
sql.append("select u.*,r.roleName as userRoleName from smbms_user u,smbms_role r where u.userRole = r.id");
List<Object> list = new ArrayList<Object>();
if(!StringUtils.isNullOrEmpty(userName)){
sql.append(" and u.userName like ?");
list.add("%"+userName+"%");
}
if(userRole > 0){
sql.append(" and u.userRole = ?");
list.add(userRole);
}
sql.append(" order by creationDate DESC limit ?,?");
currentPageNo = (currentPageNo-1)*pageSize;
list.add(currentPageNo);
list.add(pageSize);
Object[] params = list.toArray();
System.out.println("sql ----> " + sql.toString());
rs = BaseDao.execute(connection, pstm, rs, sql.toString(), params);
while(rs.next()){
User _user = new User();
_user.setId(rs.getInt("id"));
_user.setUserCode(rs.getString("userCode"));
_user.setUserName(rs.getString("userName"));
_user.setGender(rs.getInt("gender"));
_user.setBirthday(rs.getDate("birthday"));
_user.setPhone(rs.getString("phone"));
_user.setUserRole(rs.getInt("userRole"));
_user.setUserRoleName(rs.getString("userRoleName"));
userList.add(_user);
}
BaseDao.closeResult(null, pstm, rs);
}
return userList;
}
- UserService.java
// 根据条件查询用户列表
public List<User> getUserList(String queryUserName, int queryUserRole, int currentPageNo, int pageSize);
- UserServiceImpl.java
public List<User> getUserList(String queryUserName, int queryUserRole, int currentPageNo, int pageSize) {
Connection connection = null;
List<User> userList = null;
System.out.println("queryUserName ---- > " + queryUserName);
System.out.println("queryUserRole ---- > " + queryUserRole);
System.out.println("currentPageNo ---- > " + currentPageNo);
System.out.println("pageSize ---- > " + pageSize);
try {
connection = BaseDao.getConnection();
userList = userDao.getUserList(connection, queryUserName,queryUserRole,currentPageNo,pageSize);
} catch (Exception e) {
e.printStackTrace();
}finally{
BaseDao.closeResult(connection, null, null);
}
return userList;
}
3.获取角色列表
为了职责统一，可以把角色的操作单独放在一个包中，与pojo类对应！
- UserDao.java
package com.github.dao.role;
import com.github.pojo.Role;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.List;
public interface RoleDao {
// 获取角色列表
public List<Role> getRoleList(Connection connection) throws SQLException;
}
- UserDaoImpl.java
package com.github.dao.role;
import com.github.dao.BaseDao;
import com.github.pojo.Role;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
public class RoleDaoImpl implements RoleDao{
// 获取角色列表
public List<Role> getRoleList(Connection connection) throws SQLException {
PreparedStatement pstm = null;
ResultSet resultSet = null;
ArrayList<Role> roleList = new ArrayList<Role>();
if(connection!=null){
String sql = "select * from smbms_role";
Object[] params = {};
resultSet = BaseDao.execute(connection,pstm,resultSet,sql,params);
while(resultSet.next()){
Role _role = new Role();
_role.setId(resultSet.getInt("id"));
_role.setRoleName(resultSet.getString("roleName"));
_role.setRoleCode(resultSet.getString("roleCode"));
roleList.add(_role);
}
BaseDao.closeResult(null,pstm,resultSet);
}
return roleList;
}
}
- UserService.java
package com.github.service.role;
import com.github.pojo.Role;
import java.util.List;
public interface RoleService {
// 获取用户角色
public List<Role> getRoleList();
}
- UserServiceImpl.java
package com.github.service.role;
import com.github.dao.BaseDao;
import com.github.dao.role.RoleDao;
import com.github.dao.role.RoleDaoImpl;
import com.github.pojo.Role;
import java.sql.Connection;
import java.util.List;
public class RoleServiceImpl implements RoleService{
private RoleDao roleDao;
public RoleServiceImpl(){
roleDao = new RoleDaoImpl();
}
public List<Role> getRoleList() {
Connection connection = null;
List<Role> roleList = null;
try {
connection = BaseDao.getConnection();
roleList = roleDao.getRoleList(connection);
} catch (Exception e) {
e.printStackTrace();
}finally{
BaseDao.closeResult(connection, null, null);
}
return roleList;
}
}
4.用户显示的Servlet
- 获取用户前端数据(查询)；
- 判断请求是否需要执行，看参数的值判断；
- 为了实现分页，需要计算出当前页面、总页面和页面大小……
- 用户列表展示；
- 返回前端。
- UserServlet.java
package com.github.servlet.user;
import com.alibaba.fastjson.JSONArray;
import com.github.pojo.Role;
import com.github.pojo.User;
import com.github.service.role.RoleService;
import com.github.service.role.RoleServiceImpl;
import com.github.service.user.UserService;
import com.github.service.user.UserServiceImpl;
import com.github.util.Constants;
import com.github.util.PageSupport;
import com.mysql.jdbc.StringUtils;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class UserServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String method = request.getParameter("method");
System.out.println("method----> " + method);
if(method != null && method.equals("savepwd")){
this.updatePwd(request, response);
} else if(method.equals("pwdmodify") && method!=null){
this.pwdModify(request,response);
} else if(method != null && method.equals("query")) {
this.query(request,response);
}
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String method = request.getParameter("method");
System.out.println("method----> " + method);
if(method != null && method.equals("savepwd")){
this.updatePwd(request, response);
} else if(method.equals("pwdmodify") && method!=null){
this.pwdModify(request,response);
} else if(method != null && method.equals("query")) {
this.query(request,response);
}
}
// 修改密码
public void updatePwd(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 从Session中取ID
Object o = request.getSession().getAttribute(Constants.USER_SESSION);
String newpassword = request.getParameter("newpassword");
System.out.println("UserServlet3:"+newpassword);
boolean flag = false;
if(o != null && !StringUtils.isNullOrEmpty(newpassword)){
UserService userService = new UserServiceImpl();
flag = userService.updatePwd(((User)o).getId(),newpassword);
if(flag){
request.setAttribute(Constants.SYS_MESSAGE, "修改密码成功,请退出并使用新密码重新登录！");
// 密码修改成功，session注销
request.getSession().removeAttribute(Constants.USER_SESSION);
}else{
request.setAttribute(Constants.SYS_MESSAGE, "修改密码失败！");
}
}else{
request.setAttribute(Constants.SYS_MESSAGE, "修改密码失败！");
}
request.getRequestDispatcher("pwdmodify.jsp").forward(request, response);
}
// 验证旧密码,session中有用户的密码
public void pwdModify(HttpServletRequest req, HttpServletResponse resp) throws IOException {
// 从Session中取ID
Object o = req.getSession().getAttribute(Constants.USER_SESSION);
String oldpassword = req.getParameter("oldpassword");
Map<String, String> resultMap = new HashMap<String, String>();
// session过期
if(null == o ){
resultMap.put("result", "sessionerror");
}else if(StringUtils.isNullOrEmpty(oldpassword)){
// 旧密码输入为空
resultMap.put("result", "error");
}else{
String sessionPwd = ((User)o).getUserPassword();
if(oldpassword.equals(sessionPwd)){
resultMap.put("result", "true");
}else{
// 旧密码输入不正确
resultMap.put("result", "false");
}
}
resp.setContentType("application/json");
PrintWriter outWriter = resp.getWriter();
// JSONArray 阿里巴巴的JSON工具类
outWriter.write(JSONArray.toJSONString(resultMap));
outWriter.flush();
outWriter.close();
}
// 用户管理
public void query(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// 查询用户列表
String queryUserName = request.getParameter("queryname");
String temp = request.getParameter("queryUserRole");
String pageIndex = request.getParameter("pageIndex");
int queryUserRole = 0;
UserService userService = new UserServiceImpl();
List<User> userList = null;
// 设置页面容量
int pageSize = Constants.pageSize;
// 当前页码
int currentPageNo = 1;
/**
* http://localhost:8090/SMBMS/userlist.do
* ----queryUserName --NULL
* http://localhost:8090/SMBMS/userlist.do?queryname=
* --queryUserName ---""
*/
System.out.println("queryUserName servlet-------->"+queryUserName);
System.out.println("queryUserRole servlet-------->"+queryUserRole);
System.out.println("query pageIndex----------> " + pageIndex);
if(queryUserName == null){
queryUserName = "";
}
if(temp != null && !temp.equals("")){
queryUserRole = Integer.parseInt(temp);
}
if(pageIndex != null){
try{
currentPageNo = Integer.valueOf(pageIndex);
}catch(NumberFormatException e){
response.sendRedirect("error.jsp");
}
}
// 总数量（表）
int totalCount = userService.getUserCount(queryUserName,queryUserRole);
// 总页数
PageSupport pages=new PageSupport();
pages.setCurrentPageNo(currentPageNo);
pages.setPageSize(pageSize);
pages.setTotalCount(totalCount);
int totalPageCount = pages.getTotalPageCount();
// 控制首页和尾页
if(currentPageNo < 1){
currentPageNo = 1;
}else if(currentPageNo > totalPageCount){
currentPageNo = totalPageCount;
}
userList = userService.getUserList(queryUserName,queryUserRole,currentPageNo, pageSize);
request.setAttribute("userList", userList);
List<Role> roleList = null;
RoleService roleService = new RoleServiceImpl();
roleList = roleService.getRoleList();
request.setAttribute("roleList", roleList);
request.setAttribute("queryUserName", queryUserName);
request.setAttribute("queryUserRole", queryUserRole);
request.setAttribute("totalPageCount", totalPageCount);
request.setAttribute("totalCount", totalCount);
request.setAttribute("currentPageNo", currentPageNo);
request.getRequestDispatcher("userlist.jsp").forward(request, response);
}
}
7.架构分析及实现
- 整体架构
1.用户管理
- 用户增删改查接口——UserDao.java
// 增加用户信息
public int add(Connection connection, User user)throws Exception;
// 通过userId删除user
public int deleteUserById(Connection connection, Integer delId)throws Exception;
// 修改用户信息
public int modify(Connection connection, User user)throws Exception;
// 通过userId查询user
public User getUserById(Connection connection, String id)throws Exception;
- 用户接口实现类——UserDaoImpl.java
// 增加用户信息
public int add(Connection connection, User user) throws Exception {
PreparedStatement pstm = null;
int updateRows = 0;
if(null != connection){
String sql = "insert into smbms_user (userCode,userName,userPassword," +
"userRole,gender,birthday,phone,address,creationDate,createdBy) " +
"values(?,?,?,?,?,?,?,?,?,?)";
Object[] params = {user.getUserCode(),user.getUserName(),user.getUserPassword(),
user.getUserRole(),user.getGender(),user.getBirthday(),
user.getPhone(),user.getAddress(),user.getCreationDate(),user.getCreatedBy()};
updateRows = BaseDao.execute(connection, pstm, sql, params);
BaseDao.closeResult(null, pstm, null);
}
return updateRows;
}
// 通过userId删除user
public int deleteUserById(Connection connection, Integer delId) throws Exception {
PreparedStatement pstm = null;
int flag = 0;
if(null != connection){
String sql = "delete from smbms_user where id=?";
Object[] params = {delId};
flag = BaseDao.execute(connection, pstm, sql, params);
BaseDao.closeResult(null, pstm, null);
}
return flag;
}
// 修改用户信息
public int modify(Connection connection, User user) throws Exception {
int flag = 0;
PreparedStatement pstm = null;
if(null != connection){
String sql = "update smbms_user set userName=?,"+
"gender=?,birthday=?,phone=?,address=?,userRole=?,modifyBy=?,modifyDate=? where id = ? ";
Object[] params = {user.getUserName(),user.getGender(),user.getBirthday(),
user.getPhone(),user.getAddress(),user.getUserRole(),user.getModifyBy(),
user.getModifyDate(),user.getId()};
flag = BaseDao.execute(connection, pstm, sql, params);
BaseDao.closeResult(null, pstm, null);
}
return flag;
}
// 通过userId查询user
public User getUserById(Connection connection, String id) throws Exception {
User user = null;
PreparedStatement pstm = null;
ResultSet rs = null;
if(null != connection){
String sql = "select u.*,r.roleName as userRoleName from smbms_user u,smbms_role r where u.id=? and u.userRole = r.id";
Object[] params = {id};
rs = BaseDao.execute(connection, pstm, rs, sql, params);
if(rs.next()){
user = new User();
user.setId(rs.getInt("id"));
user.setUserCode(rs.getString("userCode"));
user.setUserName(rs.getString("userName"));
user.setUserPassword(rs.getString("userPassword"));
user.setGender(rs.getInt("gender"));
user.setBirthday(rs.getDate("birthday"));
user.setPhone(rs.getString("phone"));
user.setAddress(rs.getString("address"));
user.setUserRole(rs.getInt("userRole"));
user.setCreatedBy(rs.getInt("createdBy"));
user.setCreationDate(rs.getTimestamp("creationDate"));
user.setModifyBy(rs.getInt("modifyBy"));
user.setModifyDate(rs.getTimestamp("modifyDate"));
user.setUserRoleName(rs.getString("userRoleName"));
}
BaseDao.closeResult(null, pstm, rs);
}
return user;
}
- service层接口——UserService.java
// 增加用户信息
public boolean add(User user);
// 通过userId删除user
public boolean deleteUserById(Integer delId);
// 修改用户信息
public boolean modify(User user);
// 通过userId查询user
public User getUserById(String id);
// 根据userCode查询出User
public User selectUserCodeExist(String userCode);
- service层接口实现类——UserServiceImpl.java
// 增加用户信息
public boolean add(User user) {
boolean flag = false;
Connection connection = null;
try {
connection = BaseDao.getConnection();
// 开启JDBC事务管理
connection.setAutoCommit(false);
int updateRows = userDao.add(connection,user);
connection.commit();
if(updateRows > 0){
flag = true;
System.out.println("add success!");
}else{
System.out.println("add failed!");
}
} catch (Exception e) {
e.printStackTrace();
try {
System.out.println("rollback==================");
connection.rollback();
} catch (SQLException e1) {
e1.printStackTrace();
}
}finally{
// 在service层进行connection连接的关闭
BaseDao.closeResult(connection, null, null);
}
return flag;
}
// 通过userId删除user
public boolean deleteUserById(Integer delId) {
Connection connection = null;
boolean flag = false;
try {
connection = BaseDao.getConnection();
if(userDao.deleteUserById(connection,delId) > 0) {
flag = true;
}
} catch (Exception e) {
e.printStackTrace();
}finally{
BaseDao.closeResult(connection, null, null);
}
return flag;
}
// 修改用户信息
public boolean modify(User user) {
Connection connection = null;
boolean flag = false;
try {
connection = BaseDao.getConnection();
if(userDao.modify(connection,user) > 0) {
flag = true;
}
} catch (Exception e) {
e.printStackTrace();
}finally{
BaseDao.closeResult(connection, null, null);
}
return flag;
}
// 通过userId查询user
public User getUserById(String id) {
User user = null;
Connection connection = null;
try{
connection = BaseDao.getConnection();
user = userDao.getUserById(connection,id);
}catch (Exception e) {
e.printStackTrace();
user = null;
}finally{
BaseDao.closeResult(connection, null, null);
}
return user;
}
// 根据userCode查询出User
public User selectUserCodeExist(String userCode) {
Connection connection = null;
User user = null;
try {
connection = BaseDao.getConnection();
user = userDao.getLoginUser(connection, userCode);
} catch (Exception e) {
e.printStackTrace();
}finally{
BaseDao.closeResult(connection, null, null);
}
return user;
}
- servlet层——UserServlet.java
package com.github.servlet.user;
import com.alibaba.fastjson.JSONArray;
import com.github.pojo.Role;
import com.github.pojo.User;
import com.github.service.role.RoleService;
import com.github.service.role.RoleServiceImpl;
import com.github.service.user.UserService;
import com.github.service.user.UserServiceImpl;
import com.github.util.Constants;
import com.github.util.PageSupport;
import com.mysql.jdbc.StringUtils;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class UserServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String method = request.getParameter("method");
System.out.println("method----> " + method);
if(method != null && method.equals("savepwd")){
this.updatePwd(request, response);
} else if(method.equals("pwdmodify") && method!=null){
this.pwdModify(request,response);
} else if(method != null && method.equals("query")) {
this.query(request,response);
} else if(method != null && method.equals("add")){
this.add(request, response);
} else if(method != null && method.equals("getrolelist")){
this.getRoleList(request, response);
} else if(method != null && method.equals("ucexist")){
this.userCodeExist(request, response);
} else if(method != null && method.equals("deluser")){
this.delUser(request, response);
} else if(method != null && method.equals("view")){
this.getUserById(request, response,"userview.jsp");
} else if(method != null && method.equals("modify")){
this.getUserById(request, response,"usermodify.jsp");
} else if(method != null && method.equals("modifyexe")){
this.modify(request, response);
}
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String method = request.getParameter("method");
System.out.println("method----> " + method);
if(method != null && method.equals("savepwd")){
this.updatePwd(request, response);
} else if(method.equals("pwdmodify") && method!=null){
this.pwdModify(request,response);
} else if(method != null && method.equals("query")) {
this.query(request,response);
} else if(method != null && method.equals("add")){
this.add(request, response);
} else if(method != null && method.equals("getrolelist")){
this.getRoleList(request, response);
} else if(method != null && method.equals("ucexist")){
this.userCodeExist(request, response);
} else if(method != null && method.equals("deluser")){
this.delUser(request, response);
} else if(method != null && method.equals("view")){
this.getUserById(request, response,"userview.jsp");
} else if(method != null && method.equals("modify")){
this.getUserById(request, response,"usermodify.jsp");
} else if(method != null && method.equals("modifyexe")){
this.modify(request, response);
}
}
// 修改密码
public void updatePwd(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 从Session中取ID
Object o = request.getSession().getAttribute(Constants.USER_SESSION);
String newpassword = request.getParameter("newpassword");
System.out.println("UserServlet3:"+newpassword);
boolean flag = false;
if(o != null && !StringUtils.isNullOrEmpty(newpassword)){
UserService userService = new UserServiceImpl();
flag = userService.updatePwd(((User)o).getId(),newpassword);
if(flag){
request.setAttribute(Constants.SYS_MESSAGE, "修改密码成功,请退出并使用新密码重新登录！");
// 密码修改成功，session注销
request.getSession().removeAttribute(Constants.USER_SESSION);
}else{
request.setAttribute(Constants.SYS_MESSAGE, "修改密码失败！");
}
}else{
request.setAttribute(Constants.SYS_MESSAGE, "修改密码失败！");
}
request.getRequestDispatcher("pwdmodify.jsp").forward(request, response);
}
// 验证旧密码,session中有用户的密码
public void pwdModify(HttpServletRequest req, HttpServletResponse resp) throws IOException {
// 从Session中取ID
Object o = req.getSession().getAttribute(Constants.USER_SESSION);
String oldpassword = req.getParameter("oldpassword");
Map<String, String> resultMap = new HashMap<String, String>();
// session过期
if(null == o ){
resultMap.put("result", "sessionerror");
}else if(StringUtils.isNullOrEmpty(oldpassword)){
// 旧密码输入为空
resultMap.put("result", "error");
}else{
String sessionPwd = ((User)o).getUserPassword();
if(oldpassword.equals(sessionPwd)){
resultMap.put("result", "true");
}else{
// 旧密码输入不正确
resultMap.put("result", "false");
}
}
resp.setContentType("application/json");
PrintWriter outWriter = resp.getWriter();
// JSONArray 阿里巴巴的JSON工具类
outWriter.write(JSONArray.toJSONString(resultMap));
outWriter.flush();
outWriter.close();
}
// 用户管理
public void query(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// 查询用户列表
String queryUserName = request.getParameter("queryname");
String temp = request.getParameter("queryUserRole");
String pageIndex = request.getParameter("pageIndex");
int queryUserRole = 0;
UserService userService = new UserServiceImpl();
List<User> userList = null;
// 设置页面容量
int pageSize = Constants.pageSize;
// 当前页码
int currentPageNo = 1;
/**
* http://localhost:8090/SMBMS/userlist.do
* ----queryUserName --NULL
* http://localhost:8090/SMBMS/userlist.do?queryname=
* --queryUserName ---""
*/
System.out.println("queryUserName servlet-------->"+queryUserName);
System.out.println("queryUserRole servlet-------->"+queryUserRole);
System.out.println("query pageIndex----------> " + pageIndex);
if(queryUserName == null){
queryUserName = "";
}
if(temp != null && !temp.equals("")){
queryUserRole = Integer.parseInt(temp);
}
if(pageIndex != null){
try{
currentPageNo = Integer.valueOf(pageIndex);
}catch(NumberFormatException e){
response.sendRedirect("error.jsp");
}
}
// 获取用户总数
int totalCount = userService.getUserCount(queryUserName,queryUserRole);
// 总页数
PageSupport pages=new PageSupport();
pages.setCurrentPageNo(currentPageNo);
pages.setPageSize(pageSize);
pages.setTotalCount(totalCount);
int totalPageCount = pages.getTotalPageCount();
// 控制首页和尾页
if(currentPageNo < 1){
currentPageNo = 1;
}else if(currentPageNo > totalPageCount){
currentPageNo = totalPageCount;
}
userList = userService.getUserList(queryUserName,queryUserRole,currentPageNo, pageSize);
request.setAttribute("userList", userList);
List<Role> roleList = null;
RoleService roleService = new RoleServiceImpl();
roleList = roleService.getRoleList();
request.setAttribute("roleList", roleList);
request.setAttribute("queryUserName", queryUserName);
request.setAttribute("queryUserRole", queryUserRole);
request.setAttribute("totalPageCount", totalPageCount);
request.setAttribute("totalCount", totalCount);
request.setAttribute("currentPageNo", currentPageNo);
request.getRequestDispatcher("userlist.jsp").forward(request, response);
}
// 增加用户
public void add(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
System.out.println("add()================");
String userCode = request.getParameter("userCode");
String userName = request.getParameter("userName");
String userPassword = request.getParameter("userPassword");
String gender = request.getParameter("gender");
String birthday = request.getParameter("birthday");
String phone = request.getParameter("phone");
String address = request.getParameter("address");
String userRole = request.getParameter("userRole");
User user = new User();
user.setUserCode(userCode);
user.setUserName(userName);
user.setUserPassword(userPassword);
user.setAddress(address);
try {
user.setBirthday(new SimpleDateFormat("yyyy-MM-dd").parse(birthday));
} catch (ParseException e) {
e.printStackTrace();
}
user.setGender(Integer.valueOf(gender));
user.setPhone(phone);
user.setUserRole(Integer.valueOf(userRole));
user.setCreationDate(new Date());
user.setCreatedBy(((User)request.getSession().getAttribute(Constants.USER_SESSION)).getId());
UserService userService = new UserServiceImpl();
if(userService.add(user)){
response.sendRedirect(request.getContextPath()+"/jsp/user.do?method=query");
}else{
request.getRequestDispatcher("useradd.jsp").forward(request, response);
}
}
// 删除用户
public void delUser(HttpServletRequest request, HttpServletResponse response)
throws IOException {
String id = request.getParameter("uid");
Integer delId = 0;
try{
delId = Integer.parseInt(id);
}catch (Exception e) {
delId = 0;
}
HashMap<String, String> resultMap = new HashMap<String, String>();
if(delId <= 0){
resultMap.put("delResult", "notexist");
}else{
UserService userService = new UserServiceImpl();
if(userService.deleteUserById(delId)){
resultMap.put("delResult", "true");
}else{
resultMap.put("delResult", "false");
}
}
// 把resultMap转换成json对象输出
response.setContentType("application/json");
PrintWriter outPrintWriter = response.getWriter();
outPrintWriter.write(JSONArray.toJSONString(resultMap));
outPrintWriter.flush();
outPrintWriter.close();
}
// 修改用户信息
public void modify(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String id = request.getParameter("uid");
String userName = request.getParameter("userName");
String gender = request.getParameter("gender");
String birthday = request.getParameter("birthday");
String phone = request.getParameter("phone");
String address = request.getParameter("address");
String userRole = request.getParameter("userRole");
User user = new User();
user.setId(Integer.valueOf(id));
user.setUserName(userName);
user.setGender(Integer.valueOf(gender));
try {
user.setBirthday(new SimpleDateFormat("yyyy-MM-dd").parse(birthday));
} catch (ParseException e) {
e.printStackTrace();
}
user.setPhone(phone);
user.setAddress(address);
user.setUserRole(Integer.valueOf(userRole));
user.setModifyBy(((User)request.getSession().getAttribute(Constants.USER_SESSION)).getId());
user.setModifyDate(new Date());
UserService userService = new UserServiceImpl();
if(userService.modify(user)){
response.sendRedirect(request.getContextPath()+"/jsp/user.do?method=query");
}else{
request.getRequestDispatcher("usermodify.jsp").forward(request, response);
}
}
// 通过userId查询user
public void getUserById(HttpServletRequest request, HttpServletResponse response,String url)
throws ServletException, IOException {
String id = request.getParameter("uid");
if(!StringUtils.isNullOrEmpty(id)){
// 调用后台方法得到user对象
UserService userService = new UserServiceImpl();
User user = userService.getUserById(id);
request.setAttribute("user", user);
request.getRequestDispatcher(url).forward(request, response);
}
}
// 根据userCode查询出User
private void userCodeExist(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// 判断用户账号是否可用
String userCode = request.getParameter("userCode");
HashMap<String, String> resultMap = new HashMap<String, String>();
if(StringUtils.isNullOrEmpty(userCode)){
// userCode == null || userCode.equals("")
resultMap.put("userCode", "exist");
}else{
UserService userService = new UserServiceImpl();
User user = userService.selectUserCodeExist(userCode);
if(null != user){
resultMap.put("userCode","exist");
}else{
resultMap.put("userCode", "notexist");
}
}
// 把resultMap转为json字符串以json的形式输出
// 配置上下文的输出类型
response.setContentType("application/json");
// 从response对象中获取往外输出的writer对象
PrintWriter outPrintWriter = response.getWriter();
// 把resultMap转为json字符串 输出
outPrintWriter.write(JSONArray.toJSONString(resultMap));
outPrintWriter.flush(); // 刷新
outPrintWriter.close(); // 关闭流
}
private void getRoleList(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
List<Role> roleList = null;
RoleService roleService = new RoleServiceImpl();
roleList = roleService.getRoleList();
// 把roleList转换成json对象输出
response.setContentType("application/json");
PrintWriter outPrintWriter = response.getWriter();
outPrintWriter.write(JSONArray.toJSONString(roleList));
outPrintWriter.flush();
outPrintWriter.close();
}
}
- 运行调试
2.订单管理
- dao层接口及实现类
package com.github.dao.bill;
import com.github.pojo.Bill;
import java.sql.Connection;
import java.util.List;
public interface BillDao {
// 增加订单
public int add(Connection connection, Bill bill)throws Exception;
// 通过查询条件获取供应商列表-模糊查询-getBillList
public List<Bill> getBillList(Connection connection, Bill bill)throws Exception;
//通过delId删除Bill
public int deleteBillById(Connection connection, String delId)throws Exception;
// 通过billId获取Bill
public Bill getBillById(Connection connection, String id)throws Exception;
// 修改订单信息
public int modify(Connection connection, Bill bill)throws Exception;
// 根据供应商ID查询订单数量
public int getBillCountByProviderId(Connection connection, String providerId)throws Exception;
}
package com.github.dao.bill;
import com.github.dao.BaseDao;
import com.github.pojo.Bill;
import com.mysql.jdbc.StringUtils;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;
public class BillDaoImpl implements BillDao{
// 增加订单
public int add(Connection connection, Bill bill) throws Exception {
PreparedStatement pstm = null;
int flag = 0;
if(null != connection){
String sql = "insert into smbms_bill (billCode,productName,productDesc," +
"productUnit,productCount,totalPrice,isPayment,providerId,createdBy,creationDate) " +
"values(?,?,?,?,?,?,?,?,?,?)";
Object[] params = {bill.getBillCode(),bill.getProductName(),bill.getProductDesc(),
bill.getProductUnit(),bill.getProductCount(),bill.getTotalPrice(),bill.getIsPayment(),
bill.getProviderId(),bill.getCreatedBy(),bill.getCreationDate()};
flag = BaseDao.execute(connection, pstm, sql, params);
BaseDao.closeResult(null, pstm, null);
System.out.println("dao--------flag " + flag);
}
return flag;
}
// 通过查询条件获取供应商列表-模糊查询-getBillList
public List<Bill> getBillList(Connection connection, Bill bill) throws Exception {
PreparedStatement pstm = null;
ResultSet rs = null;
List<Bill> billList = new ArrayList<Bill>();
if(connection != null){
StringBuffer sql = new StringBuffer();
sql.append("select b.*,p.proName as providerName from smbms_bill b, smbms_provider p where b.providerId = p.id");
List<Object> list = new ArrayList<Object>();
if(!StringUtils.isNullOrEmpty(bill.getProductName())){
sql.append(" and productName like ?");
list.add("%"+bill.getProductName()+"%");
}
if(bill.getProviderId() > 0){
sql.append(" and providerId = ?");
list.add(bill.getProviderId());
}
if(bill.getIsPayment() > 0){
sql.append(" and isPayment = ?");
list.add(bill.getIsPayment());
}
Object[] params = list.toArray();
System.out.println("sql --------- > " + sql.toString());
rs = BaseDao.execute(connection, pstm, rs, sql.toString(), params);
while(rs.next()){
Bill _bill = new Bill();
_bill.setId(rs.getInt("id"));
_bill.setBillCode(rs.getString("billCode"));
_bill.setProductName(rs.getString("productName"));
_bill.setProductDesc(rs.getString("productDesc"));
_bill.setProductUnit(rs.getString("productUnit"));
_bill.setProductCount(rs.getBigDecimal("productCount"));
_bill.setTotalPrice(rs.getBigDecimal("totalPrice"));
_bill.setIsPayment(rs.getInt("isPayment"));
_bill.setProviderId(rs.getInt("providerId"));
_bill.setProviderName(rs.getString("providerName"));
_bill.setCreationDate(rs.getTimestamp("creationDate"));
_bill.setCreatedBy(rs.getInt("createdBy"));
billList.add(_bill);
}
BaseDao.closeResult(null, pstm, rs);
}
return billList;
}
//通过delId删除Bill
public int deleteBillById(Connection connection, String delId) throws Exception {
PreparedStatement pstm = null;
int flag = 0;
if(null != connection){
String sql = "delete from smbms_bill where id=?";
Object[] params = {delId};
flag = BaseDao.execute(connection, pstm, sql, params);
BaseDao.closeResult(null, pstm, null);
}
return flag;
}
// 通过billId获取Bill
public Bill getBillById(Connection connection, String id) throws Exception {
Bill bill = null;
PreparedStatement pstm = null;
ResultSet rs = null;
if(null != connection){
String sql = "select b.*,p.proName as providerName from smbms_bill b, smbms_provider p " +
"where b.providerId = p.id and b.id=?";
Object[] params = {id};
rs = BaseDao.execute(connection, pstm, rs, sql, params);
if(rs.next()){
bill = new Bill();
bill.setId(rs.getInt("id"));
bill.setBillCode(rs.getString("billCode"));
bill.setProductName(rs.getString("productName"));
bill.setProductDesc(rs.getString("productDesc"));
bill.setProductUnit(rs.getString("productUnit"));
bill.setProductCount(rs.getBigDecimal("productCount"));
bill.setTotalPrice(rs.getBigDecimal("totalPrice"));
bill.setIsPayment(rs.getInt("isPayment"));
bill.setProviderId(rs.getInt("providerId"));
bill.setProviderName(rs.getString("providerName"));
bill.setModifyBy(rs.getInt("modifyBy"));
bill.setModifyDate(rs.getTimestamp("modifyDate"));
}
BaseDao.closeResult(null, pstm, rs);
}
return bill;
}
// 修改订单信息
public int modify(Connection connection, Bill bill) throws Exception {
int flag = 0;
PreparedStatement pstm = null;
if(null != connection){
String sql = "update smbms_bill set productName=?," +
"productDesc=?,productUnit=?,productCount=?,totalPrice=?," +
"isPayment=?,providerId=?,modifyBy=?,modifyDate=? where id = ? ";
Object[] params = {bill.getProductName(),bill.getProductDesc(),
bill.getProductUnit(),bill.getProductCount(),bill.getTotalPrice(),bill.getIsPayment(),
bill.getProviderId(),bill.getModifyBy(),bill.getModifyDate(),bill.getId()};
flag = BaseDao.execute(connection, pstm, sql, params);
BaseDao.closeResult(null, pstm, null);
}
return flag;
}
// 根据供应商ID查询订单数量
public int getBillCountByProviderId(Connection connection, String providerId) throws Exception {
int count = 0;
PreparedStatement pstm = null;
ResultSet rs = null;
if(null != connection){
String sql = "select count(1) as billCount from smbms_bill where" +
" providerId = ?";
Object[] params = {providerId};
rs = BaseDao.execute(connection, pstm, rs, sql, params);
if(rs.next()){
count = rs.getInt("billCount");
}
BaseDao.closeResult(null, pstm, rs);
}
return count;
}
}
- service层接口及实现类
package com.github.service.bill;
import com.github.pojo.Bill;
import java.sql.Connection;
import java.util.List;
public interface BillService {
// 增加订单
public boolean add(Bill bill);
// 通过查询条件获取供应商列表-模糊查询-getBillList
public List<Bill> getBillList(Bill bill);
//通过delId删除Bill
public boolean deleteBillById(String delId);
// 通过billId获取Bill
public Bill getBillById(String id);
// 修改订单信息
public boolean modify(Bill bill);
}
package com.github.service.bill;
import com.github.dao.BaseDao;
import com.github.dao.bill.BillDao;
import com.github.dao.bill.BillDaoImpl;
import com.github.pojo.Bill;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.List;
public class BillServiceImpl implements BillService {
private BillDao billDao;
public BillServiceImpl(){
billDao = new BillDaoImpl();
}
// 增加订单
public boolean add(Bill bill) {
boolean flag = false;
Connection connection = null;
try {
connection = BaseDao.getConnection();
// 开启JDBC事务管理
connection.setAutoCommit(false);
if(billDao.add(connection,bill) > 0) {
flag = true;
}
connection.commit();
} catch (Exception e) {
e.printStackTrace();
try {
System.out.println("rollback==================");
connection.rollback();
} catch (SQLException e1) {
e1.printStackTrace();
}
}finally{
// 在service层进行connection连接的关闭
BaseDao.closeResult(connection, null, null);
}
return flag;
}
// 通过查询条件获取供应商列表-模糊查询-getBillList
public List<Bill> getBillList(Bill bill) {
Connection connection = null;
List<Bill> billList = null;
System.out.println("query productName ---- > " + bill.getProductName());
System.out.println("query providerId ---- > " + bill.getProviderId());
System.out.println("query isPayment ---- > " + bill.getIsPayment());
try {
connection = BaseDao.getConnection();
billList = billDao.getBillList(connection, bill);
} catch (Exception e) {
e.printStackTrace();
}finally{
BaseDao.closeResult(connection, null, null);
}
return billList;
}
// 通过delId删除Bill
public boolean deleteBillById(String delId) {
Connection connection = null;
boolean flag = false;
try {
connection = BaseDao.getConnection();
if(billDao.deleteBillById(connection, delId) > 0) {
flag = true;
}
} catch (Exception e) {
e.printStackTrace();
}finally{
BaseDao.closeResult(connection, null, null);
}
return flag;
}
// 通过billId获取Bill
public Bill getBillById(String id) {
Bill bill = null;
Connection connection = null;
try{
connection = BaseDao.getConnection();
bill = billDao.getBillById(connection, id);
}catch (Exception e) {
e.printStackTrace();
bill = null;
}finally{
BaseDao.closeResult(connection, null, null);
}
return bill;
}
// 修改订单信息
public boolean modify(Bill bill) {
Connection connection = null;
boolean flag = false;
try {
connection = BaseDao.getConnection();
if(billDao.modify(connection,bill) > 0) {
flag = true;
}
} catch (Exception e) {
e.printStackTrace();
}finally{
BaseDao.closeResult(connection, null, null);
}
return flag;
}
}
- servlet实现类
package com.github.servlet.bill;
import com.alibaba.fastjson.JSONArray;
import com.github.pojo.Bill;
import com.github.pojo.Provider;
import com.github.pojo.User;
import com.github.service.bill.BillService;
import com.github.service.bill.BillServiceImpl;
import com.github.service.provider.ProviderService;
import com.github.service.provider.ProviderServiceImpl;
import com.github.util.Constants;
import com.mysql.jdbc.StringUtils;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
/**
* @Description: 订单管理
*/
public class BillServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String method = request.getParameter("method");
if(method != null && method.equals("query")){
this.query(request,response);
}else if(method != null && method.equals("add")){
this.add(request,response);
}else if(method != null && method.equals("view")){
this.getBillById(request,response,"billview.jsp");
}else if(method != null && method.equals("modify")){
this.getBillById(request,response,"billmodify.jsp");
}else if(method != null && method.equals("modifysave")){
this.modify(request,response);
}else if(method != null && method.equals("delbill")){
this.delBill(request,response);
}else if(method != null && method.equals("getproviderlist")){
this.getProviderlist(request,response);
}
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
/*String totalPrice = request.getParameter("totalPrice");
//23.234 45
BigDecimal totalPriceBigDecimal =
//设置规则，小数点保留两位，多出部分，ROUND_DOWN 舍弃
//ROUND_HALF_UP 四舍五入(5入) ROUND_UP 进位
//ROUND_HALF_DOWN 四舍五入（5不入）
new BigDecimal(totalPrice).setScale(2,BigDecimal.ROUND_DOWN);*/
String method = request.getParameter("method");
if(method != null && method.equals("query")){
this.query(request,response);
}else if(method != null && method.equals("add")){
this.add(request,response);
}else if(method != null && method.equals("view")){
this.getBillById(request,response,"billview.jsp");
}else if(method != null && method.equals("modify")){
this.getBillById(request,response,"billmodify.jsp");
}else if(method != null && method.equals("modifysave")){
this.modify(request,response);
}else if(method != null && method.equals("delbill")){
this.delBill(request,response);
}else if(method != null && method.equals("getproviderlist")){
this.getProviderlist(request,response);
}
}
private void getProviderlist(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
System.out.println("getproviderlist ========================= ");
List<Provider> providerList = new ArrayList<Provider>();
ProviderService providerService = new ProviderServiceImpl();
providerList = providerService.getProviderList("","");
// 把providerList转换成json对象输出
response.setContentType("application/json");
PrintWriter outPrintWriter = response.getWriter();
outPrintWriter.write(JSONArray.toJSONString(providerList));
outPrintWriter.flush();
outPrintWriter.close();
}
// 通过billId获取Bill
public void getBillById(HttpServletRequest request, HttpServletResponse response,String url)
throws ServletException, IOException {
String id = request.getParameter("billid");
if(!StringUtils.isNullOrEmpty(id)){
BillService billService = new BillServiceImpl();
Bill bill = null;
bill = billService.getBillById(id);
request.setAttribute("bill", bill);
request.getRequestDispatcher(url).forward(request, response);
}
}
// 修改
public void modify(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
System.out.println("modify===============");
String id = request.getParameter("id");
String productName = request.getParameter("productName");
String productDesc = request.getParameter("productDesc");
String productUnit = request.getParameter("productUnit");
String productCount = request.getParameter("productCount");
String totalPrice = request.getParameter("totalPrice");
String providerId = request.getParameter("providerId");
String isPayment = request.getParameter("isPayment");
Bill bill = new Bill();
bill.setId(Integer.valueOf(id));
bill.setProductName(productName);
bill.setProductDesc(productDesc);
bill.setProductUnit(productUnit);
bill.setProductCount(new BigDecimal(productCount).setScale(2,BigDecimal.ROUND_DOWN));
bill.setIsPayment(Integer.parseInt(isPayment));
bill.setTotalPrice(new BigDecimal(totalPrice).setScale(2,BigDecimal.ROUND_DOWN));
bill.setProviderId(Integer.parseInt(providerId));
bill.setModifyBy(((User)request.getSession().getAttribute(Constants.USER_SESSION)).getId());
bill.setModifyDate(new Date());
boolean flag = false;
BillService billService = new BillServiceImpl();
flag = billService.modify(bill);
if(flag){
response.sendRedirect(request.getContextPath()+"/jsp/bill.do?method=query");
}else{
request.getRequestDispatcher("billmodify.jsp").forward(request, response);
}
}
// 删除
public void delBill(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String id = request.getParameter("billid");
HashMap<String, String> resultMap = new HashMap<String, String>();
if(!StringUtils.isNullOrEmpty(id)){
BillService billService = new BillServiceImpl();
boolean flag = billService.deleteBillById(id);
if(flag){
// 删除成功
resultMap.put("delResult", "true");
}else{
// 删除失败
resultMap.put("delResult", "false");
}
}else{
resultMap.put("delResult", "notexit");
}
// 把resultMap转换成json对象输出
response.setContentType("application/json");
PrintWriter outPrintWriter = response.getWriter();
outPrintWriter.write(JSONArray.toJSONString(resultMap));
outPrintWriter.flush();
outPrintWriter.close();
}
// 增加
public void add(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String billCode = request.getParameter("billCode");
String productName = request.getParameter("productName");
String productDesc = request.getParameter("productDesc");
String productUnit = request.getParameter("productUnit");
String productCount = request.getParameter("productCount");
String totalPrice = request.getParameter("totalPrice");
String providerId = request.getParameter("providerId");
String isPayment = request.getParameter("isPayment");
Bill bill = new Bill();
bill.setBillCode(billCode);
bill.setProductName(productName);
bill.setProductDesc(productDesc);
bill.setProductUnit(productUnit);
bill.setProductCount(new BigDecimal(productCount).setScale(2,BigDecimal.ROUND_DOWN));
bill.setIsPayment(Integer.parseInt(isPayment));
bill.setTotalPrice(new BigDecimal(totalPrice).setScale(2,BigDecimal.ROUND_DOWN));
bill.setProviderId(Integer.parseInt(providerId));
bill.setCreatedBy(((User)request.getSession().getAttribute(Constants.USER_SESSION)).getId());
bill.setCreationDate(new Date());
boolean flag = false;
BillService billService = new BillServiceImpl();
flag = billService.add(bill);
System.out.println("add flag -- > " + flag);
if(flag){
response.sendRedirect(request.getContextPath()+"/jsp/bill.do?method=query");
}else{
request.getRequestDispatcher("billadd.jsp").forward(request, response);
}
}
// 查询
public void query(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
List<Provider> providerList = new ArrayList<Provider>();
ProviderService providerService = new ProviderServiceImpl();
providerList = providerService.getProviderList("","");
request.setAttribute("providerList", providerList);
String queryProductName = request.getParameter("queryProductName");
String queryProviderId = request.getParameter("queryProviderId");
String queryIsPayment = request.getParameter("queryIsPayment");
if(StringUtils.isNullOrEmpty(queryProductName)){
queryProductName = "";
}
List<Bill> billList = new ArrayList<Bill>();
BillService billService = new BillServiceImpl();
Bill bill = new Bill();
if(StringUtils.isNullOrEmpty(queryIsPayment)){
bill.setIsPayment(0);
}else{
bill.setIsPayment(Integer.parseInt(queryIsPayment));
}
if(StringUtils.isNullOrEmpty(queryProviderId)){
bill.setProviderId(0);
}else{
bill.setProviderId(Integer.parseInt(queryProviderId));
}
bill.setProductName(queryProductName);
billList = billService.getBillList(bill);
request.setAttribute("billList", billList);
request.setAttribute("queryProductName", queryProductName);
request.setAttribute("queryProviderId", queryProviderId);
request.setAttribute("queryIsPayment", queryIsPayment);
request.getRequestDispatcher("billlist.jsp").forward(request, response);
}
@Override
public void destroy() {
super.destroy();
}
@Override
public void init() throws ServletException {
super.init();
}
public static void main(String[] args) {
System.out.println(new BigDecimal("23.235").setScale(2,BigDecimal.ROUND_HALF_DOWN));
}
}
- web.xml配置
<servlet>
<servlet-name>BillServlet</servlet-name>
<servlet-class>com.github.servlet.bill.BillServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>BillServlet</servlet-name>
<url-pattern>/jsp/bill.do</url-pattern>
</servlet-mapping>
- 运行调试
3.供应商管理
- dao层接口及实现类
package com.github.dao.provider;
import com.github.pojo.Provider;
import java.sql.Connection;
import java.util.List;
// 供应商管理接口
public interface ProviderDao {
// 增加供应商
public int add(Connection connection, Provider provider)throws Exception;
// 通过供应商名称、编码获取供应商列表-模糊查询-providerList
public List<Provider> getProviderList(Connection connection, String proName, String proCode)throws Exception;
// 通过proId删除Provider
public int deleteProviderById(Connection connection, String delId)throws Exception;
// 通过proId获取Provider
public Provider getProviderById(Connection connection, String id)throws Exception;
// 修改用户信息
public int modify(Connection connection, Provider provider)throws Exception;
}
package com.github.dao.provider;
import com.github.dao.BaseDao;
import com.github.pojo.Provider;
import com.mysql.jdbc.StringUtils;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;
// 供应商管理接口实现类
public class ProviderDaoImpl implements ProviderDao{
// 增加供应商
public int add(Connection connection, Provider provider) throws Exception {
PreparedStatement pstm = null;
int flag = 0;
if(null != connection){
String sql = "insert into smbms_provider (proCode,proName,proDesc," +
"proContact,proPhone,proAddress,proFax,createdBy,creationDate) " +
"values(?,?,?,?,?,?,?,?,?)";
Object[] params = {provider.getProCode(),provider.getProName(),provider.getProDesc(),
provider.getProContact(),provider.getProPhone(),provider.getProAddress(),
provider.getProFax(),provider.getCreatedBy(),provider.getCreationDate()};
flag = BaseDao.execute(connection, pstm, sql, params);
BaseDao.closeResult(null, pstm, null);
}
return flag;
}
// 通过供应商名称、编码获取供应商列表-模糊查询-providerList
public List<Provider> getProviderList(Connection connection, String proName, String proCode) throws Exception {
PreparedStatement pstm = null;
ResultSet rs = null;
List<Provider> providerList = new ArrayList<Provider>();
if(connection != null){
StringBuffer sql = new StringBuffer();
sql.append("select * from smbms_provider where 1=1 ");
List<Object> list = new ArrayList<Object>();
if(!StringUtils.isNullOrEmpty(proName)){
sql.append(" and proName like ?");
list.add("%"+proName+"%");
}
if(!StringUtils.isNullOrEmpty(proCode)){
sql.append(" and proCode like ?");
list.add("%"+proCode+"%");
}
Object[] params = list.toArray();
System.out.println("sql ----> " + sql.toString());
rs = BaseDao.execute(connection, pstm, rs, sql.toString(), params);
while(rs.next()){
Provider _provider = new Provider();
_provider.setId(rs.getInt("id"));
_provider.setProCode(rs.getString("proCode"));
_provider.setProName(rs.getString("proName"));
_provider.setProDesc(rs.getString("proDesc"));
_provider.setProContact(rs.getString("proContact"));
_provider.setProPhone(rs.getString("proPhone"));
_provider.setProAddress(rs.getString("proAddress"));
_provider.setProFax(rs.getString("proFax"));
_provider.setCreationDate(rs.getTimestamp("creationDate"));
providerList.add(_provider);
}
BaseDao.closeResult(null, pstm, rs);
}
return providerList;
}
// 通过proId删除Provider
public int deleteProviderById(Connection connection, String delId) throws Exception {
PreparedStatement pstm = null;
int flag = 0;
if(null != connection){
String sql = "delete from smbms_provider where id=?";
Object[] params = {delId};
flag = BaseDao.execute(connection, pstm, sql, params);
BaseDao.closeResult(null, pstm, null);
}
return flag;
}
// 通过proId获取Provider
public Provider getProviderById(Connection connection, String id) throws Exception {
Provider provider = null;
PreparedStatement pstm = null;
ResultSet rs = null;
if(null != connection){
String sql = "select * from smbms_provider where id=?";
Object[] params = {id};
rs = BaseDao.execute(connection, pstm, rs, sql, params);
if(rs.next()){
provider = new Provider();
provider.setId(rs.getInt("id"));
provider.setProCode(rs.getString("proCode"));
provider.setProName(rs.getString("proName"));
provider.setProDesc(rs.getString("proDesc"));
provider.setProContact(rs.getString("proContact"));
provider.setProPhone(rs.getString("proPhone"));
provider.setProAddress(rs.getString("proAddress"));
provider.setProFax(rs.getString("proFax"));
provider.setCreatedBy(rs.getInt("createdBy"));
provider.setCreationDate(rs.getTimestamp("creationDate"));
provider.setModifyBy(rs.getInt("modifyBy"));
provider.setModifyDate(rs.getTimestamp("modifyDate"));
}
BaseDao.closeResult(null, pstm, rs);
}
return provider;
}
// 修改用户信息
public int modify(Connection connection, Provider provider) throws Exception {
int flag = 0;
PreparedStatement pstm = null;
if(null != connection){
String sql = "update smbms_provider set proName=?,proDesc=?,proContact=?," +
"proPhone=?,proAddress=?,proFax=?,modifyBy=?,modifyDate=? where id = ? ";
Object[] params = {provider.getProName(),provider.getProDesc(),provider.getProContact(),provider.getProPhone(),provider.getProAddress(),
provider.getProFax(),provider.getModifyBy(),provider.getModifyDate(),provider.getId()};
flag = BaseDao.execute(connection, pstm, sql, params);
BaseDao.closeResult(null, pstm, null);
}
return flag;
}
}
- service层接口及实现类
package com.github.service.provider;
import com.github.pojo.Provider;
import java.util.List;
public interface ProviderService {
// 增加供应商
public boolean add(Provider provider);
// 通过供应商名称、编码获取供应商列表-模糊查询-providerList
public List<Provider> getProviderList(String proName, String proCode);
// 通过proId删除Provider
public int deleteProviderById(String delId);
// 通过proId获取Provider
public Provider getProviderById(String id);
// 修改用户信息
public boolean modify(Provider provider);
}
package com.github.service.provider;
import com.github.dao.BaseDao;
import com.github.dao.bill.BillDao;
import com.github.dao.bill.BillDaoImpl;
import com.github.dao.provider.ProviderDao;
import com.github.dao.provider.ProviderDaoImpl;
import com.github.pojo.Provider;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.List;
public class ProviderServiceImpl implements ProviderService{
private ProviderDao providerDao;
private BillDao billDao;
public ProviderServiceImpl(){
providerDao = new ProviderDaoImpl();
billDao = new BillDaoImpl();
}
// 增加供应商
public boolean add(Provider provider) {
boolean flag = false;
Connection connection = null;
try {
connection = BaseDao.getConnection();
// 开启JDBC事务管理
connection.setAutoCommit(false);
if(providerDao.add(connection,provider) > 0) {
flag = true;
}
connection.commit();
} catch (Exception e) {
e.printStackTrace();
try {
System.out.println("rollback==================");
connection.rollback();
} catch (SQLException e1) {
e1.printStackTrace();
}
}finally{
// 在service层进行connection连接的关闭
BaseDao.closeResult(connection, null, null);
}
return flag;
}
// 通过供应商名称、编码获取供应商列表-模糊查询-providerList
public List<Provider> getProviderList(String proName, String proCode) {
Connection connection = null;
List<Provider> providerList = null;
System.out.println("query proName ---- > " + proName);
System.out.println("query proCode ---- > " + proCode);
try {
connection = BaseDao.getConnection();
providerList = providerDao.getProviderList(connection, proName,proCode);
} catch (Exception e) {
e.printStackTrace();
}finally{
BaseDao.closeResult(connection, null, null);
}
return providerList;
}
// 通过proId删除Provider
public int deleteProviderById(String delId) {
Connection connection = null;
int billCount = -1;
try {
connection = BaseDao.getConnection();
connection.setAutoCommit(false);
billCount = billDao.getBillCountByProviderId(connection,delId);
if(billCount == 0){
providerDao.deleteProviderById(connection, delId);
}
connection.commit();
} catch (Exception e) {
e.printStackTrace();
billCount = -1;
try {
connection.rollback();
} catch (SQLException e1) {
e1.printStackTrace();
}
}finally{
BaseDao.closeResult(connection, null, null);
}
return billCount;
}
// 通过proId获取Provider
public Provider getProviderById(String id) {
Provider provider = null;
Connection connection = null;
try{
connection = BaseDao.getConnection();
provider = providerDao.getProviderById(connection, id);
}catch (Exception e) {
e.printStackTrace();
provider = null;
}finally{
BaseDao.closeResult(connection, null, null);
}
return provider;
}
// 修改用户信息
public boolean modify(Provider provider) {
Connection connection = null;
boolean flag = false;
try {
connection = BaseDao.getConnection();
if(providerDao.modify(connection,provider) > 0) {
flag = true;
}
} catch (Exception e) {
e.printStackTrace();
}finally{
BaseDao.closeResult(connection, null, null);
}
return flag;
}
}
- servlet层实现类
package com.github.servlet.provider;
import com.alibaba.fastjson.JSONArray;
import com.github.pojo.Provider;
import com.github.pojo.User;
import com.github.service.provider.ProviderService;
import com.github.service.provider.ProviderServiceImpl;
import com.github.util.Constants;
import com.mysql.jdbc.StringUtils;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
/**
* @Description: 供应商管理
*/
public class ProviderServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String method = request.getParameter("method");
if(method != null && method.equals("query")){
this.query(request,response);
}else if(method != null && method.equals("add")){
this.add(request,response);
}else if(method != null && method.equals("view")){
this.getProviderById(request,response,"providerview.jsp");
}else if(method != null && method.equals("modify")){
this.getProviderById(request,response,"providermodify.jsp");
}else if(method != null && method.equals("modifysave")){
this.modify(request,response);
}else if(method != null && method.equals("delprovider")){
this.delProvider(request,response);
}
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String method = request.getParameter("method");
if(method != null && method.equals("query")){
this.query(request,response);
}else if(method != null && method.equals("add")){
this.add(request,response);
}else if(method != null && method.equals("view")){
this.getProviderById(request,response,"providerview.jsp");
}else if(method != null && method.equals("modify")){
this.getProviderById(request,response,"providermodify.jsp");
}else if(method != null && method.equals("modifysave")){
this.modify(request,response);
}else if(method != null && method.equals("delprovider")){
this.delProvider(request,response);
}
}
public void delProvider(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String id = request.getParameter("proid");
HashMap<String, String> resultMap = new HashMap<String, String>();
if(!StringUtils.isNullOrEmpty(id)){
ProviderService providerService = new ProviderServiceImpl();
int flag = providerService.deleteProviderById(id);
if(flag == 0){//删除成功
resultMap.put("delResult", "true");
}else if(flag == -1){//删除失败
resultMap.put("delResult", "false");
}else if(flag > 0){//该供应商下有订单，不能删除，返回订单数
resultMap.put("delResult", String.valueOf(flag));
}
}else{
resultMap.put("delResult", "notexit");
}
//把resultMap转换成json对象输出
response.setContentType("application/json");
PrintWriter outPrintWriter = response.getWriter();
outPrintWriter.write(JSONArray.toJSONString(resultMap));
outPrintWriter.flush();
outPrintWriter.close();
}
public void modify(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String proContact = request.getParameter("proContact");
String proPhone = request.getParameter("proPhone");
String proAddress = request.getParameter("proAddress");
String proFax = request.getParameter("proFax");
String proDesc = request.getParameter("proDesc");
String id = request.getParameter("id");
Provider provider = new Provider();
provider.setId(Integer.valueOf(id));
provider.setProContact(proContact);
provider.setProPhone(proPhone);
provider.setProFax(proFax);
provider.setProAddress(proAddress);
provider.setProDesc(proDesc);
provider.setModifyBy(((User)request.getSession().getAttribute(Constants.USER_SESSION)).getId());
provider.setModifyDate(new Date());
boolean flag = false;
ProviderService providerService = new ProviderServiceImpl();
flag = providerService.modify(provider);
if(flag){
response.sendRedirect(request.getContextPath()+"/jsp/provider.do?method=query");
}else{
request.getRequestDispatcher("providermodify.jsp").forward(request, response);
}
}
public void getProviderById(HttpServletRequest request, HttpServletResponse response,String url)
throws ServletException, IOException {
String id = request.getParameter("proid");
if(!StringUtils.isNullOrEmpty(id)){
ProviderService providerService = new ProviderServiceImpl();
Provider provider = null;
provider = providerService.getProviderById(id);
request.setAttribute("provider", provider);
request.getRequestDispatcher(url).forward(request, response);
}
}
public void add(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String proCode = request.getParameter("proCode");
String proName = request.getParameter("proName");
String proContact = request.getParameter("proContact");
String proPhone = request.getParameter("proPhone");
String proAddress = request.getParameter("proAddress");
String proFax = request.getParameter("proFax");
String proDesc = request.getParameter("proDesc");
Provider provider = new Provider();
provider.setProCode(proCode);
provider.setProName(proName);
provider.setProContact(proContact);
provider.setProPhone(proPhone);
provider.setProFax(proFax);
provider.setProAddress(proAddress);
provider.setProDesc(proDesc);
provider.setCreatedBy(((User)request.getSession().getAttribute(Constants.USER_SESSION)).getId());
provider.setCreationDate(new Date());
boolean flag = false;
ProviderService providerService = new ProviderServiceImpl();
flag = providerService.add(provider);
if(flag){
response.sendRedirect(request.getContextPath()+"/jsp/provider.do?method=query");
}else{
request.getRequestDispatcher("provideradd.jsp").forward(request, response);
}
}
public void query(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String queryProName = request.getParameter("queryProName");
String queryProCode = request.getParameter("queryProCode");
if(StringUtils.isNullOrEmpty(queryProName)){
queryProName = "";
}
if(StringUtils.isNullOrEmpty(queryProCode)){
queryProCode = "";
}
List<Provider> providerList = new ArrayList<Provider>();
ProviderService providerService = new ProviderServiceImpl();
providerList = providerService.getProviderList(queryProName,queryProCode);
request.setAttribute("providerList", providerList);
request.setAttribute("queryProName", queryProName);
request.setAttribute("queryProCode", queryProCode);
request.getRequestDispatcher("providerlist.jsp").forward(request, response);
}
@Override
public void destroy() {
super.destroy();
}
@Override
public void init() throws ServletException {
super.init();
}
}
- web.xml配置文件
<servlet>
<servlet-name>ProviderServlet</servlet-name>
<servlet-class>com.github.servlet.provider.ProviderServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ProviderServlet</servlet-name>
<url-pattern>/jsp/provider.do</url-pattern>
</servlet-mapping>
- 运行实现；
4.项目部署
-
SMBMS编译后的项目：下载地址
- 编译后的项目：即在IDEA中运行成功后，生成的out文件夹下"
out\artifacts\Test_war_exploded"文件夹；
- 编译后的项目：即在IDEA中运行成功后，生成的out文件夹下"
- 具体部署运行：
- 修改端口号(可略)；
- 将编译后的项目文件放入
Tomcat的webapps目录下：
- 修改项目密码及用户名；
- 启动服务器，运行项目；
- 在浏览器输入路径，查看项目；
格式：
http://localhost:端口号/webapps目录下项目文件夹名(注意大小写)/
个人路径：
http://localhost:8001/SMBMS/
🎉🎉全剧终🎉🎉
欢迎查阅
