AOP後臺日誌

• 一.操作流程

 

• 二.主要代碼

package com.gaipian.controller;

import com.gaipian.domaim.SysLog;
import com.gaipian.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.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.Date;

@Component
@Aspect
public class LogAop {

    @Autowired
    HttpServletRequest request;//此示例在web。xml中配置了創建監聽

    @Resource(name = "sysLogService")
    private ISysLogService sysLogService;

    private Date visitTime;//1
    private String visitTimeStr;
    private String username;//1
    private String ip;//1
    private String url;//1
    private Long executionTime; //1
    private String method; //1

    private Class clazz;
    private Method m_method; //可以通過該屬性獲取method方法名


    @Before("execution(* com.gaipian.controller.*.*(..))")
    public void doBefore(JoinPoint jop) throws NoSuchMethodException {

        visitTime = new Date();
        clazz = jop.getTarget().getClass();//獲取當前類
        String methodName = jop.getSignature().getName();//獲取方法名
        Object[] args = jop.getArgs();//獲取參數名稱
        if (args == null||args.length==0) {
            m_method = clazz.getMethod(methodName);//獲取方法
        }else {
            Class[] classArgs  = new Class[args.length];
            for (int i = 0; i < args.length; i++) {
                classArgs[i] = args[i].getClass();//注意此處不能夠有基本類型，因此所有的查詢發方法中不能夠有基本類型數據
            }
            m_method = clazz.getMethod(methodName, classArgs);
        }
    }

    @After("execution(* com.gaipian.controller.*.*(..))")
    public void doAfter(JoinPoint jop) throws Exception {

        String url = "";

        if (clazz!=null&&m_method!=null&&clazz !=LogAop.class){

            //獲取類上的註解
            RequestMapping classMapping = (RequestMapping) clazz.getAnnotation(RequestMapping.class);
            if (classMapping != null) {
                String[] classValue = classMapping.value();//RequetMapping中的value字段就是我們所需要的值
                url +=classValue[0];

                //獲取方法上的註解
                RequestMapping methodMapping = m_method.getAnnotation(RequestMapping.class);
                if (methodMapping!=null){
                    String[] methodValues = methodMapping.value();
                    url +=methodValues[0];

                    //獲取ip字段
                    ip= request.getRemoteAddr();

                    //獲取當前所操作的用戶名稱，通過SecurityContext獲取
                    SecurityContext context = SecurityContextHolder.getContext();
                    User user = (User) context.getAuthentication().getPrincipal();
                    username = user.getUsername();
                }
            }


        }

        executionTime = new Date().getTime()-visitTime.getTime();

        SysLog sysLog = new SysLog();
        sysLog.setExecutionTime(executionTime);
        sysLog.setIp(ip);
        sysLog.setMethod("類名"+clazz.getName()+"方法名"+m_method.getName());
        sysLog.setUrl(url);
        sysLog.setUsername(username);
        sysLog.setVisitTime(visitTime);
        
        sysLogService.saveLog(sysLog);

    }

}

 

• 三.遇見問題

• 1.AOP中獲取方法使用的args[i].getClass();，因此所有切入點不可以使用基本類型的參數，都需要換成引入類型，如Integer這種。
•