springboot利用spring AOP实现记录请求日志

package com.dingdang.utils;

import com.alibaba.fastjson.JSON;
import com.dingdang.system.commonManager.entity.po.UserPO;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;



@Aspect
@Component
@Slf4j
public class WebLogAspect {
    @Value("${session.sessionUserKey}")
    private String sessionUserKey;
    
    private String requestPath = null ;
    
    private String userName = null ;
    
    private Map inputParamMap = null ;
    
    private Map outputParamMap = null;
    
    private long startTimeMillis = 0;
    
    private long endTimeMillis = 0;

    
    @Before("execution(* com.dingdang.controller.avaluation..*(..))")
    public void doBeforeInServiceLayer(JoinPoint joinPoint) {
        // 记录方法开始执行的时间
        startTimeMillis = System.currentTimeMillis();
    }

    
    @After("execution(* com.dingdang.controller.avaluation..*.*(..))")
    public void doAfterInServiceLayer(JoinPoint joinPoint) {
        // 记录方法执行完成的时间
        endTimeMillis = System.currentTimeMillis();
        this.printOptLog();
    }

    
    @Around("execution(* com.dingdang.controller.avaluation..*.*(..))")
    public Object doAround(ProceedingJoinPoint pjp) throws Throwable {
        
        RequestAttributes ra = RequestContextHolder.getRequestAttributes();
        ServletRequestAttributes sra = (ServletRequestAttributes)ra;
        HttpServletRequest request = sra.getRequest();
        // 从session中获取用户信息
        UserPO user = SessionUtil.getUser(sessionUserKey);
        if(user != null && !"".equals(user)){
            userName = user.getName();
        }else{
            userName = "用户未登录" ;
        }
        // 获取输入参数
        inputParamMap = request.getParameterMap();
        // 获取请求地址
        requestPath = request.getRequestURI();

        // 执行完方法的返回值：调用proceed()方法，就会触发切入点方法执行
        outputParamMap = new HashMap();
        // result的值就是被拦截方法的返回值
        Object result = pjp.proceed();
        outputParamMap.put("result", result);

        return result;
    }

    
    private void printOptLog() {
        String optTime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(startTimeMillis);
        log.info("n user："+userName
                +"  url："+requestPath+"; op_time：" + optTime + " pro_time：" + (endTimeMillis - startTimeMillis) + "ms ;"
                +" param："+ JSON.toJSON(inputParamMap)+";"+"n result："+ JSON.toJSON(outputParamMap));
    }
}