spring aop 可以在不破壞我們程序代碼的前提下很好的對程序異常進行打印，網上也有很多這樣的例子，我這裏寫的比較簡單，只是針對程序出異常時進行見到的日誌打印，代碼比較簡單。

異常日誌處理類

package com.apt.study.exception;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

import com.alibaba.fastjson.JSONObject;

@Component
@Aspect
 
public class ExceptionToJson {
    
    public Logger logger = LoggerFactory.getLogger(ExceptionToJson.class);

    @Pointcut("execution(* com.apt.study.service..*.*(..))")
    public void exceptionLog() {
        
    }
    
    
     @AfterThrowing(pointcut = "exceptionLog()", throwing="e")  
     
 
public  void doAfterThrowing(JoinPoint joinPoint, Throwable e) { 
         try {
              logger.error("------->Error Class:" + e.getClass().getName());  
             logger.error("------->Error msg:" + e.getMessage());  
             logger.error("------->Error method:" + (joinPoint.getTarget().getClass().getName() + "
 
." + joinPoint.getSignature().getName() + "()"));  
             Object[] arguments = joinPoint.getArgs(); 
             if (arguments !=  null && arguments.length > 0) {  
                 for ( int i = 0; i < arguments.length; i++) {  
                   logger.error("------->args[" + i + "]: " + JSONObject.toJSONString(arguments[i])); 
                 } 
             }
        }  catch (Exception ex) {  
            //記錄本地異常日誌  
            logger.error("------->異常通知異常");  
            logger.error("------->異常信息:{}", ex.getMessage());  
        }
         
     }
}

日誌異常處理-spring aop註解