Spring整合mybatis方式二

UserDao:

public interface UserDao {
    public List<User> selectAll();
}

UserDaoImpl:让接口的实现类继承SqlSessionDaoSupport

public class UserDaoImpl extends SqlSessionDaoSupport implements UserDao{
@Override
public List<User> selectAll() {
return getSqlSession().selectList("cn.xst.vo.user.mapper.selectAll");
}
}

User.mapper.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="cn.xst.vo.user.mapper">
   <select id="selectAll"  resultType="User">
      select * from user
   </select>
   <insert id="add" parameterType="User" useGeneratedKeys="true">
      insert into user(name,pwd) values(#{name},#{pwd})
   </insert>
   <delete id="remove" >
     delete from user where id =#{id}
   </delete>
</mapper>

Spring的IOC容器:beans.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" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.1.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd">
<!-- 配置数据源 -->
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql://127.0.0.1:3306/webservice"></property>
<property name="username" value="root"></property>
<property name="password" value="sorry"></property>
</bean>
<!-- 1.配置事物管理 -->
<bean id="txManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 2.配置事物的通知 -->
<tx:advice id="txadvice" transaction-manager="txManager">
<tx:attributes>
<!-- 配置哪些方法使用什么样的事物,配置事物的传播特性 -->
<tx:method name="add" propagation="REQUIRED" />
<tx:method name="update" propagation="REQUIRED" />
<tx:method name="delete" propagation="REQUIRED" />
<tx:method name="remove*" propagation="REQUIRED" />
<tx:method name="insert" propagation="REQUIRED" />
<tx:method name="get" read-only="true" />
<tx:method name="*" propagation="REQUIRED" />
</tx:attributes>
</tx:advice>
<!-- 3.配置事物的切面 -->
<aop:config>
<aop:pointcut expression="execution(* cn.xst.dao.impl.*.*(..))"
id="pointcut" />
<aop:advisor advice-ref="txadvice" pointcut-ref="pointcut" />
</aop:config>
<!-- 配置mybatis的SqlSessionFactory -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<!-- mybatis的全局配置文件 -->
<property name="configLocation" value="classpath:mybatis.cfg.xml"></property>
</bean>
<!-- dao里面需要注入sqlSessionFactory(这里采用的是接口的实现类来继承SqlSessionDaoSupport) -->
<bean id="userDao" class="cn.xst.dao.impl.UserDaoImpl">
<property name="sqlSessionFactory" ref="sqlSessionFactory"></property>
</bean>
</beans>

接口的实现类继承SqlSessionDaoSupport不用需要在spring的IOC容器里面配置sqlSessionTemplate代码简介很多！