如何获取Spring事务管理器实例？

Question

I use annotations to mark methods which should be executed in a transaction.

But, in one place I need to do transactionManager.rollback() manually, without annotation. How can I obtain transactionManager object?

Answer 1

If you want to rollback the current transaction, you may use

    TransactionAspectSupport.currentTransactionStatus().setRollbackOnly();

Note that it doesn't rollback the transaction immediately - it sets the "rollback only" status, so transaction will be rolled back during attempt to commit.

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Otherwise, if you need a programmatic transaction demaracation, you may use TransactionTemplate , as described in 10.6 Programmatic transaction management .

Also you can obtain an instance of PlatformTransactionManager , but it's not widely used since TransactionTemplate is a recommended approach for programmatic transaction demaracation.

See also:

• 10. Transaction Management

Answer 2

如果您的对象是由Spring配置的，那么您当然可以将一个事务管理器注入其中......