整合spring与myBatis之前，需要测试myBatis与数据库之间的链接，至少我喜欢这样做，参考上一篇文章，这次整合也是基于上一篇文章的！

http://blog.csdn.net/huzheaccp/article/details/7399124

项目的源码和jar包可以去我的资源下载

项目的源码和jar包可以去我的资源下载

整合之前需要jar包，网上搜一搜，本次用：spring 3.0.1  +  myBatis 3.0 + mybatis-spring 1.0

整个项目的一个结构：

说明：

UserMapper:dao接口       userMapper.xml是myBatis针对dao接口的实现

Entity不用管、user是实体类、

IuserService 是service接口  UserService是针对service接口的实现

SpringTest 是针对本次整合的一个测试类

ApplicationContext-mapper.xml 是myBatis的配置文件信息

ApplicationContext-service.xml 是spring配置文件信息

ApplicationContext.xml是spring的配置文件信息 

我主张配置文件能分类就分类，要不然写到一块乱、难维护！

下就说说主要整合部分，其他的在上一章有说明，请参考：

http://blog.csdn.net/huzheaccp/article/details/7399124

service接口：

package com.forum.service;

import com.forum.po.User;

public interface IUserService {
	/**
	 * 根据ID获得User信息
	 * @param id
	 * @return
	 */
	public User findById(String id);

}

package com.forum.service.impl;

import com.forum.dao.UserMapper;
import com.forum.po.User;
import com.forum.service.IUserService;

public class UserServiceImpl implements IUserService {
	private UserMapper userMapper;
    /**
     * 根据ID获得USER信息
     */
	public User findById(String id) {
		return userMapper.findById(id);
	}

	public UserMapper getUserMapper() {
		return userMapper;
	}

	public void setUserMapper(UserMapper userMapper) {
		this.userMapper = userMapper;
	}
	
	
  
}

ApplicationContext.xml配置文件内容：

<?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">
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName" value="com.ibm.db2.jcc.DB2Driver"></property>
        <property name="url" value="jdbc:db2://localhost:50000/forum"></property>
        <property name="username" value="DB2ADMIN"></property>
        <property name="password" value="admin"></property>
        <property name="maxActive" value="100"></property>
        <property name="maxIdle" value="30"></property>
        <property name="maxWait" value="500"></property>
        <property name="defaultAutoCommit" value="true"></property>
    </bean>

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="configLocation" value="classpath:configuration.xml"></property>
        <property name="dataSource" ref="dataSource" />
    </bean>
    <import resource="applicationContext-*.xml"/>
</beans>

整合的时候我把数据库配置文件放到了spring管理，上次是放在myBatis的configuration.xml中的；

这次的configuration.xml中清减到只配置myBatis的别名和mapper如下所示：

<?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>
	<typeAliases>
		<!--给实体类起一个别名 user -->
		<typeAlias type="com.forum.po.User" alias="User" />
	</typeAliases>
    <mappers>
		<!--userMapper.xml装载进来  同等于把“dao”的实现装载进来 -->
		<mapper resource="com/forum/dao/impl/userMapper.xml" />
	</mappers>
	
</configuration>

ApplicationContext-mapper.xml这个文件主要是把myBatis的dao实现放进来：

<?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">
	
    <bean id="userMapper" class="org.mybatis.spring.MapperFactoryBean">
       <property name="mapperInterface" value="com.forum.dao.UserMapper"></property>
       <property name="sqlSessionFactory" ref="sqlSessionFactory"></property>
    </bean>

</beans>

Application—service.xml主要是将service接口注入进来，文件内容如下：

<?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">

    <bean id="userService" class="com.forum.service.impl.UserServiceImpl">
       <property name="userMapper" ref="userMapper"></property>
    </bean>

</beans>

测试类：springTest:

package com.forum.test;

import junit.framework.TestCase;

import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.forum.po.User;
import com.forum.service.IUserService;

public class SpringTest extends TestCase {
	@Test
	public void testSpring(){
		ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
		IUserService userService = (IUserService) applicationContext.getBean("userService");
		User user = userService.findById("1");
		System.out.println(user.getName());
	}
}

Dao和实体类如何请参看上一章：

http://blog.csdn.net/huzheaccp/article/details/7399124

sping和myBatis整合，主要就是将myBatis的

交给spring管理

项目的源码和jar包可以去我的资源下载

项目的源码和jar包可以去我的资源下载