【对线面试官】Java注解

╰半夏微凉° 2021-09-07 06:03 343阅读 0赞

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public void send(String userName) { 
      try { 
        // qps 上报
        qps(params);
        long startTime = System.currentTimeMillis();
    
        // 构建上下文(模拟业务代码）
        ProcessContext processContext = new ProcessContext();
        UserModel userModel = new UserModel();
        userModel.setAge("22");
        userModel.setName(userName);
        //...
    
        // rt 上报
        long endTime = System.currentTimeMillis();
        rt(endTime - startTime);
      } catch (Exception e) { 
        
        // 出错上报
        error(params);
      }
    }

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@Around("@annotation(com.sanwai.service.openapi.monitor.Monitor)")
        public Object antispan(ProceedingJoinPoint pjp) throws Throwable { 
    
            String functionName = pjp.getSignature().getName();
            Map<String, String> tags = new HashMap<>();
    
            logger.info(functionName);
    
            tags.put("functionName", functionName);
            tags.put("flag", "done");
    
            monitor.sum(functionName, "start", 1);
    
            //方法执行开始时间
            long startTime = System.currentTimeMillis();
    
            Object o = null;
            try { 
                o = pjp.proceed();
            } catch (Exception e) { 
                //方法执行结束时间
                long endTime = System.currentTimeMillis();
    
                tags.put("flag", "fail");
                monitor.avg("rt", tags, endTime - startTime);
    
                monitor.sum(functionName, "fail", 1);
                throw e;
            }
    
            //方法执行结束时间
            long endTime = System.currentTimeMillis();
    
            monitor.avg("rt", tags, endTime - startTime);
    
            if (null != o) { 
                monitor.sum(functionName, "done", 1);
            }
            return o;
        }

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**[【对线面试官】系列][Link 1] 一周两篇持续更新中！**

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[25e6b6be86a944c090838d45bfeb8622.png]: /images/20210827/c2b5f32fbf1b41919507c4d69dac7cf1.png
[adc8ff3af0e7be5f25031ce3c1acb70e.png]: /images/20210827/32244c1c692149ba8cb450022aba90ba.png
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