Spring + mybatis整合实例应用

--
--数据库 tb_user
--

drop table if exists tb_user;

create table tb_user(
id int primary key auto_increment comment '主键',
username varchar(40) not null unique comment '用户名',
password varchar(40) not null comment '密码',
email varchar(40) comment '邮件',
age int  comment '年龄',
sex char(2) not null comment '性别'
);

package com.icreate.entity;
/**
*
*
*  @version ： 1.0
*
*  @author  ： 苏若年
*
*  @since   ： 1.0        创建时间:    2013-4-9    上午11:15:50
*
*  @function： TODO
*
*/
public class User {

private int id;
private String username;
private String password;
private String sex;
private String email;
private int age;

//getter() and  setter ()
}

package com.icreate.dao;

import java.util.List;

import com.icreate.entity.User;

/**
*
*
*  @version ： 1.0
*
*  @author  ： 苏若年
*
*  @since   ： 1.0        创建时间:    2013-4-9    上午11:36:34
*
*  @function： TODO
*
*/
public interface UserDao {

public int insert(User user);

public int update(User user);

public int delete(String userName);

public List selectAll();

public int countAll();

public User findByUserName(String userName);

}

<?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="com.icreate.dao.UserDao">
<select id="countAll" resultType="int">  <!-- 查询表中记录总数 -->
select count(*) c from tb_user;
</select>

<select id="selectAll" resultType="com.icreate.entity.User">    <!-- 查询表中的所有用户 -->
select * from tb_user order by username asc
</select>

<insert id="insert" parameterType="com.icreate.entity.User">    <!-- 向数据库中插入用户 -->
insert into tb_user(username,password,email,sex,age) values(#{username},#{password},#{email},#{sex},#{age})
</insert>

<update id="update" parameterType="com.icreate.entity.User">     <!-- 更新库中的用户 -->
update tb_user set username=#{username},password=#{password},email=#{email},sex=#{sex},age=#{age} where username=#{username}
</update>

<delete id="delete" parameterType="String">    <!-- 删除用户 -->
delete from tb_user where username=#{username}
</delete>

<select id="findByUserName" parameterType="String" resultType="com.icreate.entity.User"> <!-- 根据用户名查找用户 -->
select * from tb_user where username=#{username}
</select>
</mapper>

<?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>
<mappers>
<mapper resource="com/icreate/dao/UserDao.xml"/>
</mappers>
</configuration>

<?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:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"> 
<!-- 配置数据源 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql://localhost:3306/db_mybatis?useUnicode=
true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull"></property>
<property name="username" value="root"></property>
<property name="password" value="root"></property>
</bean>

<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:MyBatis-Configuration.xml"></property>
<property name="dataSource" ref="dataSource" />
</bean>

<?xml version="1.0" encoding="UTF-8"?><web-app version="2.5" 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_2_5.xsd">[/code] <context-param><param-name>contextConfigLocation</param-name><!-- applicationContext.xml文件在/WEB-INF/目錄下時可以這樣配置,--><param-value>/WEB-INF/applicationContext.xml</param-value></context-param><!-- 配置上下文监听 --><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><welcome-file-list><welcome-file>index.jsp</welcome-file></welcome-file-list></web-app>

package com.icreate.service;

package com.icreate.service.impl;

package com.icreate.service;

package com.icreate.dao;

<?xml version="1.0" encoding="UTF-8"?><beansxmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:p="http://www.springframework.org/schema/p"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"> <!-- 配置数据源 --><bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"><property name="driverClassName" value="com.mysql.jdbc.Driver"></property><property name="url" value="jdbc:mysql://localhost:3306/db_mybatis?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull"></property><property name="username" value="root"></property><property name="password" value="root"></property></bean><bean id="transactionManager"class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource" /></bean><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dataSource" /></bean>

<?xml version="1.0" encoding="UTF-8"?><web-app version="2.5" 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_2_5.xsd">[/code] <context-param><param-name>contextConfigLocation</param-name><!-- applicationContext.xml文件在/WEB-INF/目錄下時可以這樣配置,--><param-value>classpath:applicationContext.xml</param-value></context-param><!-- 配置上下文监听 --><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><welcome-file-list><welcome-file>index.jsp</welcome-file></welcome-file-list></web-app>

ApplicationContext context = null;UserService userService = null;@Beforepublic void initContext(){this.context = new ClassPathXmlApplicationContext("applicationContext.xml");//this.context = new FileSystemXmlApplicationContext("WebRoot/WEB-INF/applicationContext.xml");this.userService = (UserService) context.getBean("userService");}