springboot 事务 Transaction 异常 Transaction rolled back because it has been marked as rollback-only

解决参考： https://blog.csdn.net/Mr_Smile2014/article/details/49455483

异常信息

 ERROR c.r.f.w.e.DefaultExceptionHandler - [notFount,50] - 运行时异常:
org.springframework.transaction.UnexpectedRollbackException: Transaction rolled back because it has been marked as rollback-only

直接上代码：

controller

	@PostMapping("/testFunction")
	@ResponseBody
//	@Transactional  //注意这里啊，service层有异常处理了，controller还是删掉这个没必要的吧
	public AjaxResult testFunction()
	{
		try {
			testService.testServiceFunction();
		} catch (Exception e) {
			//这里捕捉testServiceFunction方法扔出来的异常并处理，解决异常:Transaction rolled back because it has been marked as rollback-only
			return AjaxResult.error("执行出错，数据回滚");
		}
		return toAjax(1);
	}

service 及 serviceImpl

        public int testServiceFunction() throws Exception;




	@Override
	@Transactional
	public int testServiceFunction() throws Exception{
		try {
			//操作1
			//操作2
			//操作3
			//这里代码异常了，用try捕捉，catch抛出异常到上一层
		}catch (Exception e){
			System.out.println(e);
			System.out.println("---数据执行异常，Transactional事务回滚数据。controller捕捉异常，并做相关提示--");
			throw e;
		}
		return 0;
	}

 

我这里是单一的service方法里用到 Transactional ，并不是像网上其他人那样多个service方法相互调用导致的异常；

之前为了测试，直接在controller层方法上使用了Transactional注解，导致我的service层方法抛出异常后，即使controller方法里捕捉处理了异常，还是会一直报 ... rollback-only ...  ，删掉controller层方法上的Transactional注解，就好了。。