第七节：SpringBoot 的AOP

代码如下

package com.xiaowen.aspect;

import javax.servlet.http.HttpServletRequest;

import org.apache.log4j.Logger;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.After;
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;

/**
 * AOP
 * @author xiaowen
 *
 */
@Aspect
@Component
public class RequestAspect {

	private Logger log=Logger.getLogger(RequestAspect.class);

	@Pointcut("execution(public * com.xiaowen.controller.*.*(..))")
	public void log(){

	}

	@Before("log()")
	public void deBefore(JoinPoint joinPoint){
		log.info("方法执行之前");
		ServletRequestAttributes sra=(ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
		HttpServletRequest request=sra.getRequest();
		log.info("url:"+request.getRequestURI());
		log.info("ip:"+request.getRemoteHost());
		log.info("method:"+request.getMethod());
		log.info("class_method:"+joinPoint.getSignature().getDeclaringTypeName()+"."+joinPoint.getSignature().getName());
		log.info("args:"+joinPoint.getArgs());
	}
	@After("log()")
	public void doAfter(JoinPoint joinPoint){
		log.info("方法执行后...");
	}

	@AfterReturning(returning="result",pointcut="log()")
	public void doAfterReturning(Object result){
		log.info("执行返回值："+result);
	}
}