SpringBoot之采用AOP统一打印日志信息

彼岸舞

发布于 2021-02-01 12:26:33

1.5K0

SpringBoot之采用AOP统一打印日志信息

添加MAVEN依赖:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-aop</artifactId>
</dependency>

编写切面:

　　为什么要使用AOP打印日志,因为在方法中打印日志会大大增加方法的冗余,增加开发时间

　　采用切面统一打印的比较多,因为日志一般会记录在文件,有的还会记录在数据库,不是打印在控制台上就完事了

　　那我们做的项目来说吧,一般日志会分为三种,用户的登录日志,用户的操作日志,用户的浏览日志,都是分开存储的

　　创建aspect包,并创建LogAspect切面类

LogAspect.java

package com.springboot.demo.aspect;

import org.aspectj.lang.JoinPoint;
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.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.Enumeration;

/**
 * @author ZYGisComputer
 */
@Aspect
@Component
public class LogAspect {
    private static final Logger logger = LoggerFactory.getLogger(LogAspect.class);

    /**
     * 定义切入点
     */
    @Pointcut("execution(public * com.springboot.demo.service.*.*(..))")
    public void webLog() {}

    @Before("webLog()")
    public void doBefore(JoinPoint joinPoint) throws Throwable {
        // 接收到请求，记录请求内容
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();
        // 记录下请求内容
        logger.info("URL : " + request.getRequestURL().toString());
        logger.info("HTTP_METHOD : " + request.getMethod());
        logger.info("IP : " + request.getRemoteAddr());
        Enumeration<String> enu = request.getParameterNames();
        while (enu.hasMoreElements()) {
            String name = (String) enu.nextElement();
            logger.info("name:{},value:{}", name, request.getParameter(name));
        }
    }

    @AfterReturning(returning = "ret", pointcut = "webLog()")
    public void doAfterReturning(Object ret) throws Throwable {
        // 处理完请求，返回内容
        logger.info("RESPONSE : " + ret);
    }

}