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mybatis与spring调整(基于Annotation)

www.MyException.Cn  网友分享于:2013-02-20  浏览:25次
mybatis与spring整合(基于Annotation)

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)

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package com.mybatis;

import org.apache.ibatis.annotations.Select;

public interface UserDao {
@Select(
"select count(*) c from user;")
public int countAll();
}
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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)

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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();
}
}
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4.编写Spring配置文件applicationContext.xml

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<?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="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>
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5.编写测试代码

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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());
}
}
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附录:需要导入的库


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