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关于Spring事务传播的问题

[英]Question about Spring transaction propagation

原文 2010-05-02 16:48:47 6 1 java/ spring/ transactions

I have a question about Spring transaction propagation .我有一个关于 Spring事务传播的问题。

Suppose I use @Transactional(propagation = Propagation.REQUIRED) to annotate a method m1() .假设我使用@Transactional(propagation = Propagation.REQUIRED)注释方法m1() 。 When execution logic enters m1() , if there is already a transaction, m1() will use that one.当执行逻辑进入m1() ，如果已经存在事务，则m1()将使用该事务。 When after m1() , what about the transaction?在m1() ，交易呢？ It will end or still remain open?它会结束还是仍然保持开放？ (if I call m1() in another method, and after the invocation there is still other things to do). （如果我在另一个方法中调用m1() ，并且在调用之后还有其他事情要做）。

In summary, I want to know when exiting an annotated method, the transaction ends or still remains open?总之，我想知道退出带注释的方法时，事务结束还是仍然保持打开状态？

Great thanks.万分感谢。

1 个解决方案

Propagation.REQUIRED (documented here ) will create a new transaction (if none exists for the current thread), or will join an existing transaction (if one exists). Propagation.REQUIRED （在此处记录）将创建一个新事务（如果当前线程不存在），或者将加入现有事务（如果存在）。

When the method exits, then the transaction will be completed (if entering the method caused a transaction to be created), or will leave the transaction open (if a transaction already existed when the method was entered).当该方法退出时，事务将完成（如果进入该方法导致创建一个事务），或者将保持该事务打开（如果该事务在进入该方法时已经存在）。 In other, words, it's symmetrical, and will leave the thread's transactional state in the same state it was before the method was entered.换句话说，它是对称的，并且会使线程的事务状态与进入方法之前的状态相同。