1.前臺呼叫後臺controller的方法，列印掉用的url和Ip，返回結果，方便定位問題。

2.可以寫一個類切面，搞定每次訪問controller方法

package com.edu.util;

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;

import com.fasterxml.jackson.databind.ObjectMapper;

@Aspect
@Component
public class WebLogAspect {
private Logger logger = LoggerFactory.getLogger(getClass());
private ObjectMapper mapper = new ObjectMapper();

@Pointcut("execution(public * com.edu.controller..*.*(..))")
public void webLog() {
}

@Before("webLog()")
public void doBefore(JoinPoint joinPoint) throws Throwable {
// 接收到請求，記錄請求內容
ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
HttpServletRequest request = attributes.getRequest();
// 記錄下請求內容
logger.info("URL : " + request.getRequestURL().toString());
logger.info("HTTP_METHOD : " + request.getMethod());
logger.info("IP : " + request.getRemoteAddr());
}
@AfterReturning(returning = "ret", pointcut = "webLog()")
public void doAfterReturning(Object ret) throws Throwable {
// 處理完請求，返回內容
logger.info("RESPONSE : " + mapper.writeValueAsString(ret));
}
}