mybatis与spring整合(基于配置文件)

  本文主要介绍了如何将mybatis和spring整合在一起使用,本人使用的是mybatis3.05 + spring3.1.0M2 ,使用dbcp作为数据库连接池。

1.编写数据访问接口(UserDao.java)

package com.mybatis;
public interface UserDao {
public int countAll();
}

2.编写数据访问接口映射文件(UserDaoMapper.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="com.mybatis.UserDao">
<select id="countAll" resultType="int">
select count(*) c from user;
</select>
</mapper>

3.编写mybatis配置文件(MyBatis-Configuration.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>
<mappers>
<mapper resource="com/mybatis/UserDaoMapper.xml"/>
</mappers>
</configuration>

4.编写服务层接口(UserService.java)

package com.mybatis;

public interface UserService {
public int countAll();
}

5.编写服务层实现代码(UserServiceImpl.java)

package com.mybatis;

public class UserServiceImpl implements UserService {
private UserDao userDao;

public UserDao getUserDao() {
return userDao;
}
public void setUserDao(UserDao userDao) {
this.userDao = userDao;
}

public int countAll() {
return this.userDao.countAll();
}
}

6.编写spring配置文件(applicationContext.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"
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.mysql.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql://localhost:3306/hlp?useUnicode=true&amp;characterEncoding=UTF-8&amp;zeroDateTimeBehavior=convertToNull"></property>
<property name="username" value="root"></property>
<property name="password" value="1234"></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:MyBatis-Configuration.xml"></property>
<property name="dataSource" ref="dataSource" />
</bean>

<bean id="userDao" class="org.mybatis.spring.mapper.MapperFactoryBean">
<property name="mapperInterface" value="com.mybatis.UserDao"></property>
<property name="sqlSessionFactory" ref="sqlSessionFactory"></property>
</bean>

<bean id="userService" class="com.mybatis.UserServiceImpl">
<property name="userDao" ref="userDao"></property>
</bean>

</beans>

7.测试代码(UserServiceTest.java)

package com.mybatis;

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


public class UserServiceTest {

@Test
public void userServiceTest(){
ApplicationContext context
= new ClassPathXmlApplicationContext("applicationContext.xml");
UserService userService
= (UserService)context.getBean("userService");
System.out.println(userService.countAll());
}
}

  

附录:需要导入的库

作者:红枫落叶
出处:http://www.cnblogs.com/wushiqi54719880/
关于作者:专注于Java企业运用、海量数据处理、hadoop、数字图像处理等。
本文版权归作者所有,欢迎转载,但未经作者同意必须保留此段声明,且在文章页面明显位置给出原文连接,如有问题,可以通过wushiqi54719880@126.com  联系我,非常感谢。

posted @ 2011-07-27 10:27  红枫落叶  阅读(...)  评论(...编辑  收藏