Spring事务配置笔记(实现不同Service间调用事务)

< 
  bean  
  id 
  ="sessionFactory" 
  
        class 
  ="org.springframework.orm.hibernate3.LocalSessionFactoryBean" 
  > 
  
         
  < 
  property  
  name 
  ="dataSource" 
  > 
  
             
  < 
  ref  
  local 
  ="dataSource" 
    
  /> 
  
         
  </ 
  property 
  > 
  
    
         
  <!-- 
   bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager"/ 
  --> 
  
     
  < 
  bean  
  id 
  ="transactionManager" 
   class 
  ="org.springframework.orm.hibernate3.HibernateTransactionManager" 
  > 
  
         
  < 
  property  
  name 
  ="sessionFactory" 
  > 
  
             
  < 
  ref  
  local 
  ="sessionFactory" 
    
  /> 
  
         
  </ 
  property 
  > 
  
     
  </ 
  bean 
  > 
  

     
  <!-- 
   Hibernate Transaction Interceptor Definition  
  --> 
  
     
  < 
  bean  
  id 
  ="hibernateTransactionInterceptor" 
  
        class 
  ="org.springframework.transaction.interceptor.TransactionInterceptor" 
  
        parent 
  ="transactionIntercetorTemplate" 
  > 
  
         
  < 
  property  
  name 
  ="transactionManager" 
  > 
  
             
  < 
  bean  
  id 
  ="hibernateTransactionManager" 
  
                class 
  ="org.springframework.orm.hibernate3.HibernateTransactionManager" 
  > 
  
                 
  < 
  property  
  name 
  ="sessionFactory" 
  > 
  
                     
  < 
  ref  
  bean 
  ="sessionFactory" 
    
  /> 
  
                 
  </ 
  property 
  > 
  
             
  </ 
  bean 
  > 
  
         
  </ 
  property 
  > 
  
     
  </ 
  bean 
  > 
  

     
  <!-- 
   Transction Intercetor's Template  
  --> 
  
     
  < 
  bean  
  id 
  ="transactionIntercetorTemplate" 
   abstract 
  ="true" 
  > 
  
         
  < 
  property  
  name 
  ="transactionAttributes" 
  > 
  
             
  < 
  props 
  > 
  
                 
  < 
  prop  
  key 
  ="get*" 
  > 
  PROPAGATION_REQUIRED,readOnly 
  </ 
  prop 
  > 
  
                 
  < 
  prop  
  key 
  ="is*" 
  > 
  PROPAGATION_REQUIRED,readOnly 
  </ 
  prop 
  > 
  
                 
  < 
  prop  
  key 
  ="check*" 
  > 
  PROPAGATION_REQUIRED,readOnly 
  </ 
  prop 
  > 
  
                 
  < 
  prop  
  key 
  ="insert*" 
  > 
  PROPAGATION_REQUIRED 
  </ 
  prop 
  > 
  
                 
  < 
  prop  
  key 
  ="update*" 
  > 
  PROPAGATION_REQUIRED 
  </ 
  prop 
  > 
  
                 
  < 
  prop  
  key 
  ="delete*" 
  > 
  PROPAGATION_REQUIRED,-BussException 
  </ 
  prop 
  > 
  
                 
  < 
  prop  
  key 
  ="*" 
  > 
  PROPAGATION_REQUIRED 
  </ 
  prop 
  > 
  
             
  </ 
  props 
  > 
  
         
  </ 
  property 
  > 
  
     
  </ 
  bean 
  > 
  

     
  <!-- 
   定义自动代理生成器 
  --> 
  
     
  < 
  bean  
  id 
  ="autoProxyCreator" 
  
        class 
  ="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator" 
  > 
  
         
  < 
  property  
  name 
  ="interceptorNames" 
  > 
  
             
  < 
  list 
  > 
  
                 
  < 
  idref  
  bean 
  ="hibernateTransactionInterceptor" 
    
  /> 
  
                 
  < 
  idref  
  bean 
  ="jdbcTransactionInterceptor" 
    
  /> 
  
             
  </ 
  list 
  > 
  
         
  </ 
  property 
  > 
  
         
  < 
  property  
  name 
  ="beanNames" 
  > 
  
             
  < 
  value 
  > 
  *Service 
  </ 
  value 
  > 
   
             
  <!-- 
  list>
                <idref bean="bookService" />                                        
            </list 
  --> 
  
             
  <!-- 
  添加Service bean 
  --> 
  
         
  </ 
  property 
  > 
  
     
  </ 
  bean 
  > 
  
     
  < 
  bean  
  id 
  ="hibernateDaoTemplate" 
   abstract 
  ="true" 
  > 
  
         
  < 
  property  
  name 
  ="sessionFactory" 
  > 
  
             
  < 
  ref  
  bean 
  ="sessionFactory" 
    
  /> 
  
         
  </ 
  property 
  > 
  
     
  </ 
  bean 
  > 
  
     
  <!-- 
   Dao 定义  
  --> 
  
     
  < 
  bean  
  id 
  ="imageDao" 
   class 
  ="com.fbyssssite.dao.ImageDao" 
  
        parent 
  ="hibernateDaoTemplate" 
    
  /> 
  
    <bean id="imageFolderDao" class="com.fbyssssite.dao.ImageFolderDao"
        parent="hibernateDaoTemplate" />
     
  <!-- 
   Service 定义  
  --> 
  
     
  < 
  bean  
  id 
  ="imageService" 
   class 
  ="com.fbyssssite.bo.ImageService" 
   autowire 
  ="byName" 
  > 
  
         
  < 
  property  
  name 
  ="dao" 
   ref 
  ="imageDao" 
  ></ 
  property 
  > 
  
     
  </ 
  bean 
  > 
      
    <bean id="imageFolderService" class="com.fbyssssite.bo.ImageFolderService" autowire="byName">
        <property name="dao" ref="imageFolderDao"></property>
    </bean>

二、测试代码：  

public     
  void 
   delete(Object entity,IBaseUser user)  
  throws 
   BussException  
  ... 
  {
   super.delete(entity, user);
   ImageFolder folder = (ImageFolder)entity;
   String folderId = folder.getId();   
   IImageService imageService  = ServiceFactory.getImageService();
   imageService.deleteAllInFolder(folderId,user);   
  }   
     public 
    
  void 
   deleteAllInFolder(String id,IBaseUser sysUser)  
  throws 
   BussException  
  ... 
  {
   log.info("删除图片夹'"+id+"'中的图片...");
   throw new BussException(1,"临时测试：测试事务是否生效的异常。测试完毕后删除此语句。",log);
   /**//*
   StringBuffer sql = new StringBuffer("delete ");
   sql.append("from ");
   sql.append(getEntityClassName());
   SqlBuilder sqlBuilder  = SqlBuilder.getInstance();
   sqlBuilder.appendWhereCondition(sql, "folderId='"+id+"'");
   bulkUpdate(sql.toString(), sysUser);
   */   
  }

三、测试效果：
抛出BussException之后，imageFolder实体并没有被删除，而是回滚了。
四、注意事项：
1.其中的 BussException是一个CheckedException(继承自Exception)，这里不过是一个例子，如果其他方法需要同样的方式处理事务，也要加上-BussException，否则不能回滚；如果是一个UnCheckedException，就不需要在这里配置，默认就会回滚。
2.如果采用MySQL，show table status可以查看表的ENGINE类型，MyISAM是不支持事务的，如果需要事务，应该改成InnoDB:alter table [tablename] engine = InnoDB;