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;import org.apache.ibatis.annotations.Select;public interface UserDao { @Select("select count(*) c from user;") public int countAll();}
2.编写服务层接口代码(UserService.java)
package com.mybatis;public interface UserService { public int countAll();}
3.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(); }}
4.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&characterEncoding=UTF-8&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="dataSource" ref="dataSource" /> </bean> <bean id="userDao" class="org.mybatis.spring.mapper.MapperFactoryBean"> <property name="mapperInterface" value="com.mybatis.UserDao" /> <property name="sqlSessionFactory" ref="sqlSessionFactory"></property> </bean> <bean id="userService" class="com.mybatis.UserServiceImpl"> <property name="userDao" ref="userDao"></property> </bean></beans>
5.编写测试代码
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。
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联系我,非常感谢。
来源:https://www.cnblogs.com/wushiqi54719880/archive/2011/07/27/2117956.html