春天注解交易管理CHINESE [英] Spring annotation transaction mangement

问题描述

我有一个弹簧和放大器; Hibernate的Web应用程序中，我将连接到两个数据库。

I have a Spring & Hibernate web application in which I would to connect to two databases.

在的web.xml 我已经配置应用程序上下文文件的路径如下

In the web.xml I have configured the path of the application context files as following

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>
            classpath:config/*.xml
    </param-value>
</context-param>

在那里我有config目录下的三个文件

where I have three files under the config directory

• 1-初级hibernateContext.xml


• 2 - 次级hibernateContext.xml


• 3根context.xml中

在第一个文件我已经配置了主数据源，会话工厂和事务管理器（primary_manager）

In the first file I have configured the primary data source, session factory, and transaction manager(primary_manager)

我做第二个文件相同

在第三个文件我已经配置了部分扫描，交易注解配置如下

In the third file I have configured the component scan, and transaction annotation configuration as following

<tx:annotation-driven/>
<!-- Enable Spring annotation configuration -->
<context:annotation-config />
<!-- Scan the application for all possible Services & autowire -->
<context:component-scan base-package="net.mr2.*.service" />
<context:component-scan base-package="net.mr2.*.dao" />

我在我所配置的调度程序servlet作为继servlet上下文xml文件

I have a servlet context xml file in which I have configured the dispatcher servlet as following

<annotation-driven />
<context:component-scan base-package="net.mr2.*.web" use-default-filters="false">
    <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>

服务类被注释 @Service ＆安培; @Transactional（值=secondary_transactionManager，只读=真，的rollbackFor = Exception.class）。

我具有其中该服务被自动装配一个控制器。

I have a single controller in which the service is autowired.

从控制器I调用服务类三种方法（保存1（）， SAVE2（）， SAVE3（））。我在第三种方法抛出异常，我认为第三种方法应该回滚，但这种情况不会发生。

From the controller I call three methods in the service class (save1(), save2(), save3()). and I throw exception in the third method and I assume that the third method should rollback but this does not happen.

我已经打开mysql的日志，并检查了三节约声明，我发现语句在一个事务中执行。我意识到，我没有找到 SET AUTOCOMMIT 语句之前，插入语句之后。

I have opened the mysql logs and checked the three saving statements and I found that the statements are not executed in a transaction. I realized that as I did not find SET AUTOCOMMIT statements before and after the insert statement.

所以，我认为交易没有配置好。

So, I assume that the transactions are not configured well.

会是什么问题，我的设置？

What would be the problem in my settings ?

推荐答案

我已经意识到我标注了错误的事务管理器的服务，这是什么导致了previous奇怪的行为

I have realized that I annotated the service with the wrong transaction manager and this what leads to the previous strange behavior

服务（我使用）与注释

@Transactional（值='transaction_manger_1'）

@transactional(value='transaction_manger_1')

此事务管理器被配置，而注入的DAO用的是正确的会话工厂它与读/写块的工作原理与READ_ONLY DB来工作。

This transaction manager is configured to work with the read_only DB while the injected DAO was using the correct session factory which works with the read/write DB.

所以，我已经改变了事务管理器，以正确的，每一个事情会很好。

So I have changed the transaction manager to the correct one and every thing goes fine.

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