mybatis+spring 如何进行手动事务控制

jestymat 2015-03-09 01:29:00

先贴一下代码
applicationContext.xml



<?xml version="1.0" encoding="UTF-8"?>



<beans xmlns="http://www.springframework.org/schema/beans"

	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"

	xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"

	xsi:schemaLocation="

     http://www.springframework.org/schema/beans 

     http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

     http://www.springframework.org/schema/tx 

     http://www.springframework.org/schema/tx/spring-tx-3.0.xsd

     http://www.springframework.org/schema/aop 

     http://www.springframework.org/schema/aop/spring-aop-3.0.xsd

     http://www.springframework.org/schema/context

     http://www.springframework.org/schema/context/spring-context-3.0.xsd">

<context:annotation-config></context:annotation-config>

<aop:aspectj-autoproxy proxy-target-class="true" />

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">

        <property name="driverClassName" value="com.ibm.db2.jcc.DB2Driver" />

        <property name="url" value="jdbc:db2://ip/dbname"/>

        <property name="username" value="username" />

        <property name="password" value="pwd" />

    </bean>

 



<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

	<property name="dataSource" ref="dataSource" />

</bean>



<tx:annotation-driven transaction-manager="transactionManager" />



<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

	<property name="dataSource" ref="dataSource" />

</bean>



<bean id="jfAccountMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">

    <property name="mapperInterface" value="com.xxx.interfaces.JfAccountMapper" />

    <property name="sqlSessionFactory" ref="sqlSessionFactory" />

</bean>

</beans

*.java 某个用到事务的action



public class *Action extends ActionSupport{

      private JfAccountMapper  jfAccountMapper ;

      public void setJfAccountMapper(JfAccountMapper  jfAccountMapper ){

            this.jfAccountMapper  = jfAccountMapper ;

      }

      public JfAccountMapper getJfAccountMapper (){

            return jfAccountMapper ;

      }

      

      @Tansactional

      public String save(){

            JfAccount obj = new JfAccount();

            obj.setProperty();  //

            jfAccountMapper .insert();



            flag = true; // 这里设置一个标志用于ajax提交返回结果

            return SUCCESS

      }

}

设置action的时候这个save()方法是作为 json返回，使用ajax提交后，需要一个返回值。
现在是，save()时发生错误，事务能够回滚，但是ajax无法接收到返回信息。
如果把 save()放到一个try catch中，无法catch到任何异常（好像是@transcational自动处理了异常），
如果把 save中的涉及数据库操作的代码放到try catch中，自己能捕捉到异常，但是事务又不会回滚

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