sptringboot2.0实现aop

题记：在项目需要对请求日志情形管理。

声明：参考博客https://blog.csdn.net/bombsklk/article/details/79143145

1、在pom.xml中加入依赖

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

2、写一个aop切面类，采用注解方式

package com.cn.commodity.aop;
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.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.Arrays;
import java.util.logging.Logger;

    @Aspect
    @Component
    public class WebLogAspect {

        private Logger logger = Logger.getLogger("WebLogAspect");

        @Pointcut("execution(public * com.cn.commodity..*.*(..))")
        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());
            logger.info("CLASS_METHOD : " + joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());
            logger.info("ARGS : " + Arrays.toString(joinPoint.getArgs()));
        }

        @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);
        }

    }

这样就实现了aop切面。很简单吧，想要深入了解，可以进springboot官网学习。