1 pojo中,默认PageInfo的成员变量，方便以后使用
//当前页
private int pageNum;
//每页的数量
private int pageSize;
//当前页的数量
private int size;
//由于startRow和endRow不常用，这里说个具体的用法
//可以在页面中"显示startRow到endRow 共size条数据"
//当前页面第一个元素在数据库中的行号
private int startRow;
//当前页面最后一个元素在数据库中的行号
private int endRow;
//总记录数
private long total;
//总页数
private int pages;
//结果集
private List<?> list;
//第一页
private int firstPage;
//前一页
private int prePage;
//是否为第一页
private boolean isFirstPage = false;
//是否为最后一页
private boolean isLastPage = false;
//是否有前一页
private boolean hasPreviousPage = false;
//是否有下一页
private boolean hasNextPage = false;
//导航页码数
private int navigatePages;
//所有导航页号
private int[] navigatepageNums;
2 db.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://127.0.0.1:3306/ssm
jdbc.username=root
jdbc.password=root
3 log4j.properties
### 设置Logger输出级别和输出目的地 ###
###日志记录器输出级别：fanal > error > warn > info >debug###
log4j.rootLogger=debug, stdout,logfile
### 把日志信息输出到控制台 ###
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.SimpleLayout
### 把日志信息输出到文件：jbit.log ###
log4j.appender.logfile=org.apache.log4j.FileAppender
log4j.appender.logfile.File=jbit.log
log4j.appender.logfile.layout=org.apache.log4j.PatternLayout
log4j.appender.logfile.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %p %m%n
4 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>
<!--打印日志可以看执行的sql语句-->
<setting name="logImpl" value="STDOUT_LOGGING"/>
</settings>
<typeAliases>
<package name="day01.pojo"/>
</typeAliases>
<plugins>
<!-- 分页拦截器 -->
<plugin interceptor="com.github.pagehelper.PageInterceptor"></plugin>
</plugins>
</configuration>
5 spring-config.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:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="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.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">
<context:component-scan base-package="day01.service"/>
<context:property-placeholder location="classpath:db.properties"/>
<bean id="hikariCPDataSource" class="com.zaxxer.hikari.HikariDataSource">
<property name="driverClassName" value="${jdbc.driver}"/>
<property name="jdbcUrl" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
<!-- 构建SqlSessionFactory对象 -->
<bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 数据源 因为原本是数据是mybatis中配置，现在数据源在spring中配置，得传给mybatis -->
<property name="dataSource" ref="hikariCPDataSource"/>
<!-- 加载mybatis的配置文件，也可不要，在spring配置 -->
<property name="configLocation" value="classpath:mybatis-config.xml"/>
</bean>
<!-- 扫描接口与映射文件，并把这些对象放到容器中 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="sqlSessionFactoryBeanName" value="sessionFactory"/>
<!-- 接口与映射文件所在的包 -->
<property name="basePackage" value="day01.mapper"/>
</bean>
</beans>
6 springmvc.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<context:component-scan base-package="day01.controller"/>
<!-- RequestMappingHandlerMapping处理器映射器
RequestMappingHandlerAdapter处理器适配器
支持注解开发的
如果不配置会提供一组默认的，但是默认的不支持注解 就是不会去找@Controller
所以我们使用mvc:annotation-driven标签来开启注解开发-->
<mvc:annotation-driven />
<!-- 开放静态资源 -->
<mvc:default-servlet-handler />
<!-- 视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
7 EmployeeMapper.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">
<!--命名空间 用于区分-->
<mapper namespace="day01.mapper.EmployeeMapper">
<!-- id写唯一标识-->
<!-- resultType写查询数据的返回类型-->
<select id="list" resultType="Employee">
select * from employee
</select>
<!-- <!–查询–>-->
<!-- <select id="getById" parameterType="int" resultType="com.offcn.pojo.User">-->
<!-- select * from `user` where `id` = #{id}-->
<!-- </select>-->
<!-- 插入-->
<insert id="save" parameterType="Employee">
INSERT INTO `employee`(`no`,`name`,`sex`,`age`,`educational`,`department`,`position`,`birthday`)
VALUES(#{no},#{name},#{sex},#{age},#{educational},#{department},#{position},#{birthday});
</insert>
<!-- 修改-->
<update id="update" parameterType="Employee">
UPDATE `employee` SET `name` = #{name},`sex` = #{sex},`age` = #{age},`educational` = #{educational},
`department` = #{department},`position` = #{position},`birthday` = #{birthday} WHERE `no` = #{no}
</update>
<select id="getByNo" resultType="Employee">
select * from employee WHERE `no`=#{no}
</select>
<!-- 修改-->
<!-- employee 有 '' 号，好像会错误，明天试试-->
<delete id="remove">
DELETE FROM employee WHERE `no` = #{no}
</delete>
<!-- 总结：-->
<!-- id是sql的唯一标识-->
<!-- 除查询和删除用id，是int的输入格式外，插入和修改的输入格式都是com.offcn.pojo.User（需要写地址）-->
<!-- 已知数据用标号 `，未知数据用类似 el表达式 #{} 。-->
<!-- sql语句，尽量用大写-->
</mapper>
8 web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<!-- web容器一启动就来加spring的配置 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-config.xml</param-value>
</context-param>
<!-- 监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<!-- / 代表拦所有路径 -->
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 解决post乱码 -->
<filter>
<filter-name>CharacterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>utf-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
9 pom.xml
<?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>com.key</groupId>
<artifactId>ssm</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<dependencies>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.75</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.48</version>
</dependency>
<dependency>
<groupId>com.zaxxer</groupId>
<artifactId>HikariCP</artifactId>
<version>1.3.5</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.6</version>
</dependency>
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>5.1.2</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.1.16.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.1.16.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.1.16.RELEASE</version>
</dependency>
<!-- springg整合mybatis的包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<port>80</port>
<!-- 访问时不用加项目名称 -->
<path>/</path>
<uriEncoding>utf-8</uriEncoding>
</configuration>
</plugin>
</plugins>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
</build>
</project>
