@GetMapping("trans")
    @Transactional()
    public String primaryTrans() {
        User u1 = new User(0,"test","test@email.com");
        us.save(u1);
        User u2 = new User(0,"test1","test1@email.com");
        us.save(u2);
        secondaryTrans();
        return "index";
    }

    @Transactional(propagation = Propagation.REQUIRES_NEW)
    private void secondaryTrans() {
        // TODO Auto-generated method stub
        User u2 = new User(0,"test2","test3@email.com".repeat(300));
        us.save(u2);
    }

在这里，我手动从辅助事务引发数据太长异常，但这会导致主事务也回滚。我们如何才能确保提交主事务而不考虑辅助事务