spring与mybatis四种整合方法

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U

serDaoImpl3： 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>