spring AOP使用_jeesite的aop-优快云博客

本文介绍了一个使用AOP（面向切面编程）在Java Web应用中记录请求日志的具体实现。通过Spring框架的AspectJ注解，定义了在特定控制器方法执行前后进行日志记录的切面，包括请求的URL、IP、方法名、参数及执行时间等关键信息，并将这些信息保存到WebServiceLog实体中。

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package com.jeesite.modules.aspect;


import javax.servlet.http.HttpServletRequest;

import com.jeesite.modules.wslog.entity.WebServiceLog;
import com.jeesite.modules.wslog.service.WebServiceLogService;
import org.apache.log4j.Logger;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import java.util.ArrayList;
import java.util.List;

@Aspect
@Component
public class RequestAspect {
    @Autowired
    private  WebServiceLogService webServiceLogService;
    private Logger logger=Logger.getLogger(RequestAspect.class);
    Long  startTime =null;
    @Pointcut("execution(public * com.jeesite.modules.xmsq.web.WSController.*(..))")
    public void log(){
    }

    @Before("log()")
    public void doBefore(JoinPoint joinPoint){
        startTime = System.currentTimeMillis();
        /**
         *
         *
        System.out.println("方法执行前");
        ServletRequestAttributes sra=(ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request=sra.getRequest();
        System.out.println("请求路径:"+request.getRequestURI());
        System.out.println("请求IP:"+request.getRemoteHost());
        System.out.println("请求方式:"+request.getMethod());//post 还是 get

       logger.info("method:"+request.getMethod());
        System.out.println("请求类名和方法名:"+joinPoint.getSignature().getDeclaringTypeName()+"."+joinPoint.getSignature().getName());
        System.out.println("参数:"+ joinPoint.getArgs());//参数
        */

    }
    @After("log()")
    public void doAfter(JoinPoint joinPoint){
        /**
         * 会先执行doAfter（）再执行doAfterReturning()
         */
    }
    @AfterReturning(returning="result",pointcut="log()")
    public void doAfterReturning(JoinPoint joinPoint,Object result){
        Long executeTime = (System.currentTimeMillis() - startTime);//方法执行时间
        ServletRequestAttributes sra=(ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request=sra.getRequest();
        String url = request.getRequestURI();//请求路径
        String ip = request.getRemoteHost();//请求IP
        String method = request.getMethod();//请求方式 psot|get
        String executeMethod = joinPoint.getSignature().getDeclaringTypeName()+"."+joinPoint.getSignature().getName();//请求类名以及方法名
        Object[] obj = joinPoint.getArgs();//请求参数
        List paramList = new ArrayList();
        for(Object e:obj){
            Object[] array = null;
            if(e.getClass().isArray()){
                array = (Object[]) e;
                for(Object a:array){
                    paramList.add(a);
                }
            }else {
                paramList.add(e);
            }
        }
        String param = paramList.toString();
        String returnValue = result.toString();//返回值
        WebServiceLog webServiceLog = new WebServiceLog();
        webServiceLog.setExecuteTime(executeTime);
        webServiceLog.setUrl(url);
        webServiceLog.setIp(ip);
        webServiceLog.setMethod(method);
        webServiceLog.setExecuteMethod(executeMethod);
        webServiceLog.setParam(param);
        webServiceLog.setReturnValue(returnValue);
        webServiceLogService.save(webServiceLog);

    }
}