春季交易:需要新建

可能是我误解了Spring Requires_new的行为。这是我的代码:

@Transactional(rollbackFor=Exception.class,propagation=Propagation.REQUIRED)
public void outterMethod() throws Exception{
    innerMethod1();
    innerMethod2();         
}
@Transactional(rollbackFor=Exception.class,propagation=Propagation.REQUIRES_NEW)
public void innerMethod1() throws Exception{
    testService.insert(new Testbo("test-2", new Date()));
}

@Transactional(rollbackFor=Exception.class,propagation=Propagation.REQUIRES_NEW)
public void innerMethod2() throws Exception{
    testService.insert(new Testbo("test-2", new Date()));
    throw new Exception();
}

当innerMethod2抛出异常时,我认为innerMethod1仍然能够提交。但所有外部和内部事务都会回滚。我怎么了?当innerMethod2回滚时,如何提交innerMethod1?