spring与mybati整合方法

  （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());
       }
   }