@Async异步方法对异常的处理，从内层向外层抛出机制

@RequestMapping(value = "/test", method = RequestMethod.GET)
    public String test(){
        try {
            System.out.println("主方法执行开始>>>>>>>>>>>>>>>");
            //myService依赖注入进来
            myService.test();
            System.out.println("主方法执行完毕>>>>>>>>>>>>>>>");
        }catch (Exception e) {
            System.out.println("主方法异常>>>>>>>>>>>>>>>");
            e.printStackTrace();
            return "fail";
        }
        return "success";
    }
    

    //MyService.java
    public void test() throws Exception{
        System.out.println("开始执行test");
        try{
            testAsync();
        }catch (Exception e) {
            System.out.println("test service异常>>>>>>");
            e.printStackTrace();
            throw e;
        }
        System.out.println("结束执行test");

    }

    @Async
    public void testAsync() throws Exception{
        System.out.println("开始执行testAsync");
        try{
            int i = 1/0;
        }catch (Exception e) {
            System.out.println("testAsync service异常>>>>>>");
            e.printStackTrace();
            //关键，在异步方法中也可以抛出异常
//            throw e;
        }
        System.out.println("结束执行testAsync");
    }