超级简单的AOP实现日志

实现保存访问的日志信息有:

import java.util.Date;

public class SysLog {
    private String id;
    private Date visitTime;       //访问时间
    private String visitTimeStr; 
    private String username;      //访问者用户名
    private String ip;            //访问者IP地址
    private String url;           //执行的路径
    private Long executionTime;   //方法执行时间
    private String method;        //执行的方法
}

表结构

DROP TABLE IF EXISTS `syslog`;
CREATE TABLE `syslog`  (
  `id` varchar(50) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
  `visitTime` timestamp(0) NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP(0),
  `username` varchar(50) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,
  `ip` varchar(30) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,
  `url` varchar(50) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,
  `executionTime` int(11) NULL DEFAULT NULL,
  `method` varchar(200) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_bin ROW_FORMAT = Dynamic;

SET FOREIGN_KEY_CHECKS = 1;

AOP实现

package com.qy.ssm.controller;

import com.qy.ssm.domain.SysLog;
import com.qy.ssm.service.ISysLogService;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.User;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.servlet.http.HttpServletRequest;
import java.lang.reflect.Method;
import java.util.Date;

@Component
@Aspect
public class LogAop {

    @Autowired private HttpServletRequest request;

    @Autowired private ISysLogService sysLogService;

    private Date visitTime; //开始时间
    private Class clazz; //访问的类
    private Method method ;//访问的方法

    //前置通知主要任务：，执行的类是哪一个，执行的哪一个方法    && ！execution()访问日志的不记录
    @Before("execution(* com.qy.ssm.controller.*.*(..)) && !execution(* com.qy.ssm.controller.SysLogController.*(..))")
    public void doBefore(JoinPoint jp) throws NoSuchMethodException {

        visitTime = new Date();//当前时间就是开始访问的时间
        clazz = jp.getTarget().getClass();//具体要访问的类
        String methodName = jp.getSignature().getName();
        Object[] args = jp.getArgs();

        //获取具体执行的方法的method对象
        if(args == null || args.length == 0){
            method = clazz.getMethod(methodName);//只能获取无参数的方法
        }else{
            Class[] classArgs = new Class[args.length];
            for (int i=0; i<args.length;i++){
                classArgs[i] = args[i].getClass();
            }
            clazz.getMethod(methodName,classArgs);
        }


    }

    @After("execution(* com.qy.ssm.controller.*.*(..)) && !execution(* com.qy.ssm.controller.SysLogController.*(..))")
    public void doAfter(JoinPoint jp) throws Exception {

        //获取请求时长
        long time = new Date().getTime()-visitTime.getTime();

        String url = "";

        //获取url
        if (clazz != null && method != null && clazz != LogAop.class){
            //1.获取类上的@RequestMapping("/orders")
            RequestMapping classAnnotation = (RequestMapping)clazz.getAnnotation(RequestMapping.class);
            if(classAnnotation != null){
                String[] classValue = classAnnotation.value();

                //2.获取方法上的@RequestMapping(xxx)
                RequestMapping methodAnnotaton = method.getAnnotation(RequestMapping.class);
                if(methodAnnotaton != null){
                    String[] methodValue = methodAnnotaton.value();

                    url = classValue[0] + methodValue[0];

                    //获取访问的IP地址
                    String ip = request.getRemoteAddr();

                    //获取当前操作的用户
                    SecurityContext context = SecurityContextHolder.getContext();//从上下文中获了当前登录的用户
                    User user = (User)context.getAuthentication().getPrincipal();
                    String username = user.getUsername();

                    //封装
                    SysLog sysLog = new SysLog();
                    sysLog.setExecutionTime(time);
                    sysLog.setIp(ip);
                    sysLog.setMethod("[类名] "+clazz.getName()+"  [方法名] "+method.getName());
                    sysLog.setUrl(url);
                    sysLog.setUsername(username);
                    sysLog.setVisitTime(visitTime);

                    sysLogService.save(sysLog);
                }
            }
        }

    }
}