在Spring的@Transactional注释的方法中引发并捕获的未经检查的异常是否还会导致事务回滚？

Question

I have method in my service class.

@Transactional
public void serviceMethod {
    dao.daoMethod();
}

public void daoMethod() {//dao.daoMethod
    //some code
    try {
        //some more code that throws an unchecked exception
    } catch(Exception exception) {
       //do something -- no exceptions generated/thrown from here
    }
    //some more code
 }

Will this result in the transaction rolling back? If the Unchecked exception was thrown from within a method that was called from the try block would it be any different?

Answer 1

No, the transaction will only be rolled back in case of an uncaught exception.

The transactional interceptors "wrap" around the calls of the annotated methods; they cannot see what happens inside them.

Answer 2

In your case it will silently ignore the exception. You didn't do anything inside the catch block. This is not advised at all.

Answer 3

If you catch an Exception in the try-catch block and you did some actions to handle this Exception - a rollback will not happen. In the case with RuntimeException, by default - the rollback will occur.

You can specify, which exceptions should cause the rollback. @Transactional(rollbackFor = MyCheckedException.class)

https://resourcepool.io/2014/11/16/java-quickies-what-you-wish-you-knew-about-spring-transactional-annotation/

https://www.catalysts.cc/wissenswertes/spring-transactional-rollback-on-checked-exceptions/