ibatis + spring

先加入spring的包，建立POJO实体。然后写一个配置文件如下：

<?xml version="1.0" encoding="UTF-8"?>   
<!DOCTYPE sqlMap          
    PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN"          
    "http://ibatis.apache.org/dtd/sql-map-2.dtd">   
<sqlMap>   
       
   <resultMap class="com.spring.entity.Emp"  id="e-map">   
  <result property="empno" column="empno"/>   
  <result property="ename" column="ename"/>   
  <result property = "dept" column="deptno" select="getDeptById"/>   
 </resultMap>      
        
    <select id="getDeptById" parameterClass="int"  resultClass="com.spring.entity.Dept" >   
     select *  from dept where deptno=#deptno#    
    </select>   
        
    <resultMap class="com.spring.entity.Dept"  id="d-map">   
  <result property="deptno" column="deptno"/>   
  <result property="dname" column="dname"/>   
  <result property = "loc" column="loc"/>   
  <result property="emps" column="deptno" select="getEmpsByDept"/>   
 </resultMap>     
         
    <select id="getAllEmp" parameterClass="int"  resultClass="com.spring.entity.Emp" >   
     select *  from emp    
    </select>   
        
    <insert id="insertEmp" parameterClass="com.spring.entity.Emp">   
     insert into emp values(#dept.deptno#,#ename#)    
 </insert>      
     
 <insert id="insertDept" parameterClass="com.spring.entity.Dept">   
     insert into dept values(#dname#,#loc#)    
 </insert>     
     
 <select id="selectDeptEmp" parameterClass="com.spring.entity.Dept" resultClass="com.spring.entity.Emp">   
     select * from emp where deptno=#deptno#    
 </select>     
     
 <update id="updateEmp" >   
     update emp set deptno=3 where deptno=1   
 </update>   
     
 <delete id="deleteDept">   
     delete from dept where deptno=1        
 </delete>   
</sqlMap>   

这个xml文件负责和数据库打交道，ibatis文件配置如下：

<?xml version="1.0" encoding="UTF-8"?>   
<!DOCTYPE sqlMapConfig          
    PUBLIC "-//ibatis.apache.org//DTD SQL Map Config 2.0//EN"          
    "http://ibatis.apache.org/dtd/sql-map-config-2.dtd">   
<sqlMapConfig>   
 <sqlMap resource="com/spring/entity/emp.xml"/>   
</sqlMapConfig>   

然后在spring中的配置文件applicationContext.xml中配置如下的文件

<?xml version="1.0" encoding="UTF-8"?>   
<beans   
 xmlns="http://www.springframework.org/schema/beans"   
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"   
 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">   
   
    <bean id="dataSource"  class="org.springframework.jdbc.datasource.DriverManagerDataSource">   
       <property name="driverClassName" value="com.microsoft.sqlserver.jdbc.SQLServerDriver"></property>   
       <property name="url" value="jdbc:sqlserver://127.0.0.1:1433;databaseName=mydb"></property>   
       <property name="username" value="sa"></property>   
       <property name="password" value=""></property>   
    </bean>   
    <!-- sqlMapClient -->   
    <bean id="sqlMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">   
       <property name="dataSource" ref="dataSource"></property>   
       <property name="configLocation" value="file:src/ibatis.xml"></property>   
    </bean>   
        
    <bean id="EmpDAOImpl" class="com.spring.dao.EmpDAOImpl">   
       <property name="sqlMapClient" ref="sqlMapClient">   
       </property>   
    </bean>   
        
    <bean id="EmpImpl" class="com.spring.biz.EmpImpl">   
       <property name="empDao" ref="EmpDAOImpl">   
       </property>   
    </bean>   
        
     <bean id="DeptDAOImpl" class="com.spring.dao.DeptDAOImpl">   
       <property name="sqlMapClient" ref="sqlMapClient">   
       </property>   
    </bean>   
        
    <bean id="DeptServiceImpl" class="com.spring.biz.DeptServiceImpl">   
       <property name="deptDao" ref="DeptDAOImpl">   
       </property>   
    </bean>   
        
    <!-- 事务管理器 -->   
 <bean id="ibatisManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">   
   <property name="dataSource" ref="dataSource"></property>   
 </bean>   
    <!-- 事务拦截器 -->   
 <bean id="trInterceptor" class="org.springframework.transaction.interceptor.TransactionInterceptor">   
  <property name="transactionManager" ref="ibatisManager"></property>   
  <property name="transactionAttributes">   
   <props>   
   <prop key="*">PROPAGATION_REQUIRED</prop>   
   </props>   
  </property>   
 </bean>   
 <!-- 自动代理 -->   
 <bean id="autoProxy" class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">   
     <property name="beanNames">   
      <list>   
       <value>*DAO</value>   
      </list>   
     </property>   
     <property name="interceptorNames">   
         <list>   
            <value>trInterceptor</value>   
         </list>   
     </property>   
    </bean>        
</beans>   

OK