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>