SpringBoot之AOP

    非常简单，分两步：

1.引入AOP的jar包：

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

2.创建AOP类：

    需要使用@Component将该类注入到容器中，否则AOP不生效

package com.stu.aop;

import java.util.Enumeration;

import javax.servlet.http.HttpServletRequest;

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;

@Aspect
@Component
public class LoggerAOP {
	
	private Logger logger = LoggerFactory.getLogger(LoggerAOP.class);
	
	@Pointcut("execution(public * com.stu.controller..*.*(..))")
	public void webLog() {}
	
	@Before("webLog()")
	public void log(JoinPoint joinPoint) {
		
		// 接收到请求，记录请求内容
		ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
		HttpServletRequest request = attributes.getRequest();
		logger.info("####################请求开始#####################");
		// 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("####################请求结束#####################");
		logger.info("RESPONSE : " + ret);
	}
}