使用Spring 2.0 新特性实现声明式事务管理-基于XML Schema

在Spring 2.0 中要设置声明式事务管理，可以依赖Spring 2.0 的<aop>与<tx>标签

首先需要设置声明

 

< 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"
             xsi:schemaLocation ="http://www.springframework.org/schema/beans
                                                http://www.springframework.org/shcema/beans/spring-beans-2.0./xsd
                                                http://www.springframework.org/scheam/aop
                                                http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
                                                http://www.springframework.org/schema/tx
                                                http://www.springframework.org/schema/tx/spring-tx-2.0.xsd" >
</ beans >                                 

事务是系统层面的服务，也就是一个Aspect,其实具体来说是一个advice,您可以使用<tx:advice>标签来提供这个advice它需要设置一个TransactionManager,并在当中使用<tx:attributes>来设置事务相关属性

具体应用：

 

< bean  id ="dataSource" ...... ></ bean >
< bean  id ="transactionManager"  ..... ></ bean >
< bean  id ="userDAO" .... ></ bean >

<!--
    注意到<tx:method>中的属性设置，对于传播行为，隔离层级，只读，超时，异常时撤销或提交，都对应的propagation,
    isolation,timeout,read-only,rollback-for,no-rollback-for属性可以设置，若不设置，默认值是REQUIRED,DEFAULT,-1,false
  -->
< tx:advice  id ="txtAdvice"  transaction-manager ="transactionManager" >
     < tx:attributes >
          < tx:method  name ="insert*"  propagation ="REQUIRED" />
          < tx:methpd  name ="find*"     read-only ="true" />
     </ tx:attributes >
</ tx:advice >

< aop:config >
    < aop:pointcut  id ="userDAOPointCut"  expression ="execution(* onlyfun.service.IUserDAO.* (..))" />
    < aop:advisor  advice-ref ="txAdvice"  pointcut-ref ="userDAOPointCut" />
</ aop:config >