controller层没有传request对象，如何获取request这个参数？

利用aop 打出请求地址、请求方法、ip、CLASS_METHOD、ARGS核心代码如下：

package org.jon.lv.aop;

import java.util.Arrays;
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.core.annotation.Order;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;


@Aspect
@Component
@Order(-5)
public class WebLogAspect {

    private Logger logger = LoggerFactory.getLogger(WebLogAspect.class);

    

    @Pointcut("execution(public * org.jon.lv.controller.*.*(..))")
    public void webLog() {
    }

    @Before("webLog()")
    public void doBefore(JoinPoint joinPoint) {
        // 接收到请求，记录请求内容
        logger.info("WebLogAspect.doBefore()");
        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()));
        //获取所有参数方法一：
        Enumeration enu = request.getParameterNames();
        while (enu.hasMoreElements()) {
            String paraName = (String) enu.nextElement();
            System.out.println(paraName + ": " + request.getParameter(paraName));
        }
    }


    @AfterReturning("webLog()")
    public void doAfterReturning(JoinPoint joinPoint) {
        // 处理完请求，返回内容
        logger.info("WebLogAspect.doAfterReturning()");
    }


}