Java service层获取HttpServletRequest工具类的方法

package com. .common.sessionutils;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.spring work.web.context.request.RequestContextHolder;
import org.spring work.web.context.request.ServletRequestAttributes;
public class ContextHolderUtils {
 public static HttpServletRequest getRequest() {
 HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
 return request;
 }
 public static HttpSession getSession() {
 HttpSession session = getRequest().getSession();
 return session;
 }
}