spring与mybatis四种整合方法

这篇文章介绍的也不错：http://haohaoxuexi.iteye.com/blog/1843309

1、采用数据映射器（MapperFactoryBean）的方式，不用写mybatis映射文件，采用注解方式提供相应的sql语句和输入参数。
  （1）Spring配置文件：

     

<!-- 引入jdbc配置文件 -->     <context:property-placeholder location="jdbc.properties"/>      <!--创建jdbc数据源 -->      <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">        <property name="driverClassName" value="${driver}"/>        <property name="url" value="${url}"/>        <property name="username" value="${username}"/>        <property name="password" value="${password}"/>        <property name="initialSize" value="${initialSize}"/>        <property name="maxActive" value="${maxActive}"/>        <property name="maxIdle" value="${maxIdle}"/>        <property name="minIdle" value="${minIdle}"/>      </bean>      <!-- 创建SqlSessionFactory，同时指定数据源-->      <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">      <property name="dataSource" ref="dataSource" />       </bean>      <!--创建数据映射器，数据映射器必须为接口-->      <bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">       <property name="mapperInterface" value="com.xxt.ibatis.dbcp.dao.UserMapper" />      <property name="sqlSessionFactory" ref="sqlSessionFactory" />       </bean>      <bean id="userDaoImpl2" class="com.xxt.ibatis.dbcp.dao.impl.UserDaoImpl2">      <property name="userMapper" ref="userMapper"/> </bean>

 

（2）数据映射器UserMapper,代码如下:

  public interface UserMapper {        @Select("SELECT * FROM user WHERE id = #{userId}")         User getUser(@Param("userId") long id);   }

 (3) dao接口类UserDao，代码如下：

   public interface UserDao {       public User getUserById(User user);   }

(4)dao实现类UserDaoImpl2,，代码如下:

  

public class UserDaoImpl2 implements UserDao {       private UserMapper userMapper;       public void setUserMapper(UserMapper userMapper) {            this.userMapper = userMapper;        }        public User getUserById(User user) {          return userMapper.getUser(user.getId());        }   }

 

 2、采用接口org.apache.ibatis.session.SqlSession的实现类org.mybatis.spring.SqlSessionTemplate。
    mybatis中, sessionFactory可由SqlSessionFactoryBuilder.来创建。MyBatis- Spring 中，使用了SqlSessionFactoryBean来替代。SqlSessionFactoryBean有一个必须属性 dataSource，另外其还有一个通用属性configLocation（用来指定mybatis的xml配置文件路径）。
   （1）Spring配置文件：

  

  <!-- 创建SqlSessionFactory，同时指定数据源-->   <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">      <property name="dataSource" ref="dataSource" />       <!-- 指定sqlMapConfig总配置文件，订制的environment在spring容器中不在生效-->      <property  name="configLocation"  value="classpath:sqlMapConfig.xml"/>      <!--指定实体类映射文件，可以指定同时指定某一包以及子包下面的所有配置文件，mapperLocations和configLocation 有一个即可，当需要为实体类指定别名时，可指定configLocation属性，再在mybatis总配置文件中采用mapper引入实体类映射文件 -->      <!- - <property  name="mapperLocations"  value="classpath*:com/xxt/ibatis/dbcp/**/*.xml"/>  -->   </bean><bean id="sqlSession"     class="org.mybatis.spring.SqlSessionTemplate">       <constructor-arg index="0" ref="sqlSessionFactory" /> </bean><bean id="UserDaoImpl " class="com.xxt.ibatis.dbcp.dao.impl.UserDaoImpl">   <!--注入SqlSessionTemplate实例 -->   <property name="sqlSessionTemplate" ref="sqlSession" />--></bean>

    (2)mybatis总配置文件sqlMapConfig.xml：

 

 <configuration>   <typeAliases>     <typeAlias type="com.xxt.ibatis.dbcp.domain.User" alias="User" />  </typeAliases>   <mappers>      <mapper resource="com/xxt/ibatis/dbcp/domain/user.map.xml" />     </mappers> </configuration>

(3)实体类映射文件user.map.xml:

<mapper namespace="com.xxt.ibatis.dbcp.domain.User">     <resultMap type="User" id="userMap">        <id property="id" column="id" />        <result property="name" column="name" />        <result property="password" column="password" />        <result property="createTime" column="createtime" />     </resultMap>     <select id="getUser" parameterType="User" resultMap="userMap">       select * from user where id = #{id}     </select><mapper/>

(4)dao层接口实现类UserDaoImpl：

  public class UserDaoImpl implements  UserDao  {     public SqlSessionTemplate sqlSession;     public User getUserById(User user) {         return (User)sqlSession.selectOne("com.xxt.ibatis.dbcp.domain.User.getUser", user);     }     public void setSqlSession(SqlSessionTemplate sqlSession) {          this.sqlSession = sqlSession;     }   }

 3、采用抽象类org.mybatis.spring.support.SqlSessionDaoSupport提供SqlSession。
   (1)spring配置文件:

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">   <property name="dataSource" ref="dataSource" />   <property  name="configLocation"  value="classpath:sqlMapConfig.xml"/>   <!-- <property  name="mapperLocations"  value="classpath*:com/xxt/ibatis/dbcp/domain/user.map.xml"/   >  --></bean> <bean id="sqlSession"     class="org.mybatis.spring.SqlSessionTemplate">       <constructor-arg index="0" ref="sqlSessionFactory" /> </bean><bean id="userDaoImpl3" class="com.xxt.ibatis.dbcp.dao.impl.UserDaoImpl3">   <!--注入SqlSessionTemplate实例 -->   <property name="sqlSessionTemplate" ref="sqlSession" />    <!--也可直接注入SqlSessionFactory实例，二者都指定时，SqlSessionFactory失效 -->   <!-- <property name="sqlSessionFactory" ref="sqlSessionFactory" /> --></bean>

 (2) dao层接口实现类UserDaoImpl3：

public class UserDaoImpl3 extends SqlSessionDaoSupport implements UserDao {     public User getUserById(User user) {        return (User) getSqlSession().selectOne("com.xxt.ibatis.dbcp.domain.User.getUser", user);    }   }

 4、采用org.mybatis.spring.mapper.MapperFactoryBean或者org.mybatis.spring.mapper.MapperScannerConfigurer

<beans:bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">        <beans:property name="dataSource" ref="simpleDataSource" />        <beans:property name="configLocation"            value="classpath:conf/core/mybatis-config.xml" />    </beans:bean>    <beans:bean id="sqlSessionFactory_contact" class="org.mybatis.spring.SqlSessionFactoryBean">        <beans:property name="dataSource" ref="simpleDataSource_contact" />        <beans:property name="configLocation"            value="classpath:conf/core/mybatis-config-contact.xml" />    </beans:bean>    <beans:bean id="transactionManager"        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <beans:property name="dataSource" ref="simpleDataSource" />    </beans:bean>    <beans:bean id="transactionManager_contact"        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <beans:property name="dataSource" ref="simpleDataSource_contact" />    </beans:bean>        <!--  <tx:annotation-driven transaction-manager="transactionManager" />     <tx:annotation-driven transaction-manager="transactionManager_contact" />    -->   <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>    <!-- 加载配置文件 -->    <beans:bean name="mapperScannerConfigurer"        class="org.mybatis.spring.mapper.MapperScannerConfigurer">        <beans:property name="basePackage" value="com.elong.hotel.crm.data.mapper" />        <beans:property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></beans:property>    </beans:bean>    <beans:bean name="mapperScannerConfigurer_contact"        class="org.mybatis.spring.mapper.MapperScannerConfigurer">        <beans:property name="basePackage"            value="com.elong.hotel.crm.data.contact.mapper" />        <beans:property name="sqlSessionFactoryBeanName" value="sqlSessionFactory_contact"></beans:property>    </beans:bean>    <tx:advice id="txAdvice" transaction-manager="transactionManager">        <tx:attributes>            <!-- name表示以什么开始的方法名，比如 add*表示add开头的方法 propagation表示事务传播属性，不写默认有 -->            <tx:method name="save*" propagation="REQUIRED" />            <tx:method name="insert*" propagation="REQUIRED" />            <tx:method name="add*" propagation="REQUIRED" />            <tx:method name="del*" />            <tx:method name="update*" />            <tx:method name="find*" read-only="true" />            <tx:method name="get*" read-only="true" />            <tx:method name="search*" read-only="true" />        </tx:attributes>    </tx:advice>        <tx:advice id="txAdvice_contact" transaction-manager="transactionManager_contact">        <tx:attributes>            <!-- name表示以什么开始的方法名，比如 add*表示add开头的方法 propagation表示事务传播属性，不写默认有 -->            <tx:method name="save*" propagation="REQUIRED" />            <tx:method name="insert*" propagation="REQUIRED" />            <tx:method name="add*" propagation="REQUIRED" />            <tx:method name="del*" />            <tx:method name="update*" />            <tx:method name="find*" read-only="true" />            <tx:method name="get*" read-only="true" />            <tx:method name="search*" read-only="true" />        </tx:attributes>    </tx:advice>    <!-- 配置事务切面 -->    <aop:config>        <aop:pointcut expression="execution(* com.elong.hotel.crm.service..*.*(..))"            id="pointcut" />        <aop:advisor advice-ref="txAdvice" pointcut-ref="pointcut" />        <aop:advisor advice-ref="txAdvice_contact" pointcut-ref="pointcut" />    </aop:config>