Maven+SSM+oracle框架实现简单的增删改查

最下方是代码但不建议直接使用，自己搭一下环境印象更加深刻。

Spring介绍:

spring 使用基本的 JavaBean 来完成以前只可能由 EJB 完成的事情。然而， Spring的用途不仅限于服务器端的开发。从简单性、可测试性和松耦合的角度而言，任何Java 应用都可以从 Spring 中受益。简单来说， Spring 是一个轻量级的控制反转（IoC ）和面向切面（ AOP ）的容器框架。

SpringMVC介绍

Spring MVC 属于 SpringFrameWork 的后续产品，已经融合在Spring Web Flow 里面。 Spring MVC 分离了控制器、模型对象、分派器以及处理程序对象的角色，这种分离让它们更容易进行定制。

MyBatis介绍

MyBatis 本是 apache 的一个开源项目 iBatis , 2010 年这个项目由apache software foundation 迁移到了 google code ，并且改名为 MyBatis 。MyBatis 是一个基于 Java 的持久层框架。 iBATIS 提供的持久层框架包括SQL Maps 和 Data Access Objects （ DAO ） MyBatis 消除了几乎所有的 JDBC 代码和参数的手工设置以及结果集的检索。 MyBatis 使用简单的 XML 或注解用于配置和原始映射，将接口和 Java 的 POJOs （ Plain Old Java Objects ，普通的 Java 对象）映射成数据库中的记录。

首先不是maven架构整合的 SSM 框架

创建数据库、表 t_user user_t【最下面有sql语句】

1.项目整体结构，上一篇已经介绍了搭建maven环境

2.Eclipse下创建Maven项目

这里创建一个Maven project，上面的Maven Module是maven模块化开发用到的，可以理解为子工程。

接着Next

这里选择maven-archetype-webapp，创建一个maven-webapp样例工程的意思

这里由于我已经创建了此项目，如果新建直接点击finish

。由于

此处groupid和artifactId被统称为“坐标”是为了保证项目唯一性而提出的.。org一般指一些组织机构，非盈利组织。我个人的项目一般喜欢用org。zch是我名字的缩写。artifactId写项目名称就可以了。

现在需要改一下项目的结构。因为maven项目是需要下列Source Folder文件夹的。

src/main/resources

src/main/java

src/test/resources

src/test/java

这里提示没有找到这几个文件夹。先把它们remove掉。手动创建

OK，这就是maven项目的结构了，现在已经没有报错提示。提醒：此处创建的是Source Folder文件夹。不要创建成Folder。

下面再改一下输出目录，把下面的allow output folders for source folders勾上。

按上述步骤把那四个source folder改下输出目录。编译的class就是输出到对应的目录下。

src/main/resources和src/main/java选择classes。创建文件的输出。

创建完之后引入所需要的jar包

配置文件更改。由于maven没有oracle的jar包所以要自己下载，我的工程里有对应的jar包。

pom.xml

<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.zch</groupId>
<artifactId>portal</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>portal Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>

<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>

<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.1.1</version>
</dependency>

<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.3.0</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.3</version>
</dependency>

<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.5.4</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.1.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.1.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.1.7.RELEASE</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.1.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>4.1.7.RELEASE</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.1.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.1.7.RELEASE</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.1.7.RELEASE</version>
</dependency>

<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>2.7.3</version>
</dependency>
<dependency>
<groupId>com.dyuproject.protostuff</groupId>
<artifactId>protostuff-core</artifactId>
<version>1.0.8</version>
</dependency>
<dependency>
<groupId>com.dyuproject.protostuff</groupId>
<artifactId>protostuff-runtime</artifactId>
<version>1.0.8</version>
</dependency>

<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>3.2</version>
</dependency>

<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.7.4</version>
</dependency>

</dependencies>

<build>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
</build>
</project>

创建所需要的配置文件

1.UserMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="org.portal.dao.UserMapper">

<insert id="save" parameterType="User">
insert into t_user(user_name,user_age) values(#{userName},#{age})
</insert>

<update id="update" parameterType="User">
update t_user set user_name=#{userName},user_age=#{age} where user_id=#{id}
</update>

<delete id="delete" parameterType="int">
delete from t_user where user_id=#{id}
</delete>


<select id="findById" parameterType="int" resultType="User">
select user_id id,user_name userName,user_age age from t_user where user_id=#{id}
</select>

<select id="findAll" resultType="User">
select user_id id,user_name userName,user_age age from t_user
</select>

</mapper>

2.applicationContext-dao.xml

<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">

<property name="driverClass" value="${jdbc.driver}" />
<property name="jdbcUrl" value="${jdbc.url}" />
<property name="user" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />

<property name="maxPoolSize" value="30" />
<property name="minPoolSize" value="10" />

<property name="autoCommitOnClose" value="false" />

<property name="checkoutTimeout" value="10000" />

<property name="acquireRetryAttempts" value="2" />
</bean>

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation" value="classpath:mybatis-config.xml" />
</bean>
<bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="org.portal.dao" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
</bean>

</beans>

3.applicationContext-service.xml

4.applicationContext-trans.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.1.xsd">

<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager" >

<property name="dataSource" ref="dataSource" ></property>
</bean>

<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="save*" propagation="REQUIRED" />
<tx:method name="insert*" propagation="REQUIRED" />
<tx:method name="add*" propagation="REQUIRED" />
<tx:method name="create*" propagation="REQUIRED" />
<tx:method name="delete*" propagation="REQUIRED" />
<tx:method name="update*" propagation="REQUIRED" />
<tx:method name="find*" propagation="SUPPORTS" read-only="true" />
<tx:method name="select*" propagation="SUPPORTS" read-only="true" />
<tx:method name="get*" propagation="SUPPORTS" read-only="true" />
</tx:attributes>
</tx:advice>

<aop:config>
<aop:advisor advice-ref="txAdvice" pointcut="execution(* org.portal.service.impl.*.*(..))" />

</aop:config>
</beans>

5.springmvc.xml

<mvc:resources location="/" mapping="/**/*.js"/>
<mvc:resources location="/" mapping="/**/*.css"/>
<mvc:resources location="/assets/" mapping="/assets/**/*"/>
<mvc:resources location="/images/" mapping="/images/*" cache-period="360000"/>

<bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>

6.jdbc.properties

jdbc.driver=oracle.jdbc.driver.OracleDriver
jdbc.url=jdbc:oracle:thin:@localhost:1521:orcl
jdbc.username=zjuser
jdbc.password=zjpass

#c3p0\u8FDE\u63A5\u6C60\u4FE1\u606F
c3p0.minPoolSize=3
c3p0.maxPoolSize=25

7.mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<settings>

<setting name="lazyLoadingEnabled" value="false" />

<setting name="jdbcTypeForNull" value="NULL" />
</settings>
<typeAliases>
<typeAlias alias="User" type="org.portal.entity.User" />
</typeAliases>

接下来写java类；

1.UserController

package org.portal.controller;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.portal.entity.User;
import org.portal.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
private UserService userService;
/**
* 获取所有用户列表
* @param request
* @return
*/
@RequestMapping("/getAllUser")
public String getAllUser(HttpServletRequest request,Model model){
List<User> user = userService.findAll();
model.addAttribute("userList", user);
request.setAttribute("userList", user);
return "/allUser";
}
/**
* 跳转到添加用户界面
* @param request
* @return
*/
@RequestMapping("/toAddUser")
public String toAddUser(){
return "/addUser";
}
/**
* 添加用户并重定向
* @param user
* @param request
* @return
*/
@RequestMapping("/addUser")
public String addUser(User user,Model model){
userService.save(user);
return "redirect:/user/getAllUser";
}
/**
*编辑用户
* @param user
* @param request
* @return
*/
@RequestMapping("/updateUser")
public String updateUser(User user,HttpServletRequest request,Model model){
if(userService.update(user)){
user = userService.findById(user.getId());
request.setAttribute("user", user);
model.addAttribute("user", user);
return "redirect:/user/getAllUser";
}else{
return "/error";
}
}
/**
* 根据id查询单个用户
* @param id
* @param request
* @return
*/
@RequestMapping("/getUser")
public String getUser(int id,HttpServletRequest request,Model model){
request.setAttribute("user", userService.findById(id));
model.addAttribute("user", userService.findById(id));
return "/editUser";
}
/**
* 删除用户
* @param id
* @param request
* @param response
*/
@RequestMapping("/delUser")
public void delUser(int id,HttpServletRequest request,HttpServletResponse response){
String result = "{\"result\":\"error\"}";
if(userService.delete(id)){
result = "{\"result\":\"success\"}";
}
response.setContentType("application/json");
try {
PrintWriter out = response.getWriter();
out.write(result);
} catch (IOException e) {
e.printStackTrace();
}
}
}

2.UserMapper

package org.portal.dao;

import java.util.List;

import org.portal.entity.User;
import org.springframework.stereotype.Repository;

@Repository
public interface UserMapper {
void save(User user);
boolean update(User user);
boolean delete(int id);
User findById(int id);
List<User> findAll();
}

3.User

package org.portal.entity;

public class User {

private int id;
private String userName;
private String age;

@Override
public String toString() {
return "User [id=" + id + ", age=" + age + ", userName=" + userName
+ "]";
}
public User(){
super();
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getAge() {
return age;
}
public void setAge(String age) {
this.age = age;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public User(int id, String age, String userName) {
super();
this.id = id;
this.age = age;
this.userName = userName;
}
}

4.UserService

package org.portal.service;

import java.util.List;

import org.portal.entity.User;

public interface UserService {
void save(User user);
boolean update(User user);
boolean delete(int id);
User findById(int id);
List<User> findAll();
}

5.UserServiceImpl

package org.portal.service.impl;

import javax.annotation.Resource;

import org.portal.dao.UserMapper;
import org.portal.entity.User;
import org.portal.service.UserService;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.List;

import javax.annotation.Resource;

import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@Transactional
// 此处不再进行创建SqlSession和提交事务，都已交由spring去管理了。
public class UserServiceImpl implements UserService {

@Resource
private UserMapper mapper;

/**
* 根据 id 删除数据
*/
public boolean delete(int id) {
return mapper.delete(id);
}
/**
* 查询User的全部数据
*/
public List<User> findAll() {
List<User> findAllList = mapper.findAll();
return findAllList;
}
/**
* 根据 id 查询对应数据
*/
public User findById(int id) {
User user = mapper.findById(id);
return user;
}
/**
* 新增数据
*/
public void save(User user) {
mapper.save(user);
}
/**
* 根据 id 修改对应数据
*/
public boolean update(User user) {
return mapper.update(user);
}

}

接下来是jsp。

1.addUser.jsp

2.allUser.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<script type="text/javascript" src="js/jquery-3.1.0.min.js"></script>
<title>用户列表</title>

<script type="text/javascript">
function del(id){
$.get("<%=basePath%>user/delUser?id=" + id,function(data){
if("success" == data.result){
alert("删除成功");
window.location.reload();
}else{
alert("删除失败");
}
});
}
</script>
</head>

<body>
<h6><a href="<%=basePath%>user/toAddUser">添加用户</a></h6>
<table border="1">
<tbody>
<tr>
<th>姓名</th>
<th>年龄</th>
<th>操作</th>
</tr>
<c:if test="${!empty userList }">
<c:forEach items="${userList}" var="user">
<tr>
<td>${user.userName }</td>
<td>${user.age }</td>
<td>
<a href="<%=basePath%>user/getUser?id=${user.id}">编辑</a>
<a href="javascript:del('${user.id }')">删除</a>
<%-- <a href="<%=basePath%>user/delUser?id=${user.id}">删除</a>
--%> </td>
</tr>
</c:forEach>
</c:if>
</tbody>
</table>
</body>
</html>

3.editUser.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">

<title>编辑用户</title>

<script type="text/javascript">
function updateUser(){
var form = document.forms[0];
form.action = "<%=basePath%>user/updateUser";
form.method="post";
form.submit();
}
</script>

</head>

<body>
<h1>添加用户</h1>
<form action="" name="userForm">
<input type="hidden" name="id" value="${user.id }"/>
姓名：<input type="text" name="userName" value="${user.userName }"/>
年龄：<input type="text" name="age" value="${user.age }"/>
<input type="button" value="编辑" onclick="updateUser()"/>
</form>
</body>

</html>

注意这里使用的jquery，需要引入对应的juery

在oracle中创建自己所需要的表

CREATE TABLE t_user (
user_id INT NOT NULL ,
user_name varchar(20) NOT NULL,
user_age varchar(20) NOT NULL,
PRIMARY KEY (user_id)
)
INSERT INTO t_user VALUES ('2', '朱佳鹏', '25');
INSERT INTO t_user VALUES ('3', '傻狍子', '150');
INSERT INTO t_user VALUES ('4', 'jiuqiyuliang', '23');
INSERT INTO t_user VALUES ('5', 'jiuqiyuliang', '23');
INSERT INTO t_user VALUES ('6', 'jiuqiyuliang', '23');
INSERT INTO t_user VALUES ('7', 'jiuqiyuliang', '23');
INSERT INTO t_user VALUES ('9', 'liyintao123', '23123');

SELECT * FROM t_user;

CREATE TABLE user_t (
id INT NOT NULL ,
user_name varchar(40) NOT NULL,
password varchar(255) NOT NULL,
age INT NOT NULL,
PRIMARY KEY (id)
)

INSERT INTO user_t VALUES ('1', '测试', 'sfasgfaf', '24');

SELECT * FROM t_user。

至此一个完整的ssm框架下的增删改查工程的系统做好了。