关于整合spring+mybatis 第二种方式

Posted 2020-08-31 Realvie

和第一种方式一样的步骤，不过bean.xml中有些许差异

<!-- 配置sqlSessionFactory -->
     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
         <property name="dataSource" ref="dataSource"></property>
         <property name="configLocation" value="classpath:com/bsss/conf/mybatis.xml"></property>
     </bean>
    
    <!-- 此时不需要sqlSessionTemplate
    <bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
        <constructor-arg index="0" ref="sqlSessionFactory"></constructor-arg>
    </bean>
    -->
    <bean id="userLoginDAO" class="com.bsss.dao.impl.UserloginDAOImpl">
        <!-- property name必须是sqlSessionFactory,引用的是上面所配置的sqlSessionFactory -->
        <property name="sqlSessionFactory" ref="sqlSessionFactory"></property>
    </bean>

在DAO实现类中不需要SqlSessionTemplate的注入，直接继承SqlSessionDaoSupport类，使用getSqlSession()来获取sqlsession进行操作，如下所示

public class UserloginDAOImpl extends SqlSessionDaoSupport implements UserloginDAO{
    /*此时不需要SqlSessionTemplate的注入方法了
    public void setSqlSession(SqlSessionTemplate sqlSession) {
        this.sqlSession = sqlSession;
    }
    */
    //获取登录信息
    @Override
    public Userlogin getUserloginInfo(Userlogin ul){
        return (Userlogin)getSqlSession().selectOne("com.bsss.entity.userloginMapper.getUserlogin", ul);
    }

    @Override
    public int insertUser(Userlogin ul) {
        return getSqlSession().insert("com.bsss.entity.userloginMapper.insertUser", ul);
    }
    
    @Override
    public int deleteUser(int id) {
        return getSqlSession().delete("com.bsss.entity.userloginMapper.deleteUser", id);
    }
    
}