RequestHelper 获取客户端ip

package com.sd.sdactivity.utils;
import org.springframework.http.HttpEntity;

import org.springframework.http.HttpHeaders;

import org.springframework.http.HttpMethod;

import org.springframework.http.ResponseEntity;

import org.springframework.web.client.RestTemplate;

import javax.servlet.http.HttpServletRequest;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.net.URL;

import java.net.URLConnection;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.regex.Matcher;

import java.util.regex.Pattern;



public class RequestHelper {

    /**

     * 获取端口号

     *

     * @param request

     * @return

     */

public static Integer getServerPort(HttpServletRequest request) {

        return request.getServerPort();

    }

   public static String getServerName(HttpServletRequest request) {

        return request.getServerName();

    }

 /**

     * 获取当前客户端ＩＰ
     *
     * @param request
     * @return
     */ 

 public static String getIp(HttpServletRequest request) {

        String ip = request.getHeader("X-Forwarded-For");

        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {

            ip = request.getHeader("Proxy-Client-IP");

   }

        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        } 

 if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {

            ip = request.getHeader("HTTP_CLIENT_IP");

        } 

 if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {

            ip = request.getHeader("HTTP_X_FORWARDED_FOR");

        } 

if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {

            ip = request.getRemoteAddr();

        }

        return ip;

    } 

 /**

     * 获取请求的内容

     *

     * @param request

     * @return

     */ 

 public static String GetRequestString(HttpServletRequest request) {

        BufferedReader reader;

        try {

            reader = request.getReader();

    String input = null;

            StringBuffer requestBody = new StringBuffer();
            while ((input = reader.readLine()) != null) {
                requestBody.append(input);
            }   

    String data = requestBody.toString();

            return data;



        } catch (IOException e) { 

 // TODO Auto-generated catch block

            e.printStackTrace();

        }

        return null;

    }    

/**

     * 获取主域名

     *

     * @param host

     * @return

     */

 public static String GetMainDomain(String host) { 



     String regStr = "[0-9a-zA-Z]+((\\.com)|(\\.cn)|(\\.org)|(\\.net)|(\\.edu)|(\\.com.cn)|(\\.xyz)|(\\.xin)|(\\.club)|(\\.shop)|(\\.site)|(\\.wang)" +       "|(\\.top)|(\\.win)|(\\.online)|(\\.tech)|(\\.store)|(\\.bid)|(\\.cc)|(\\.ren)|(\\.lol)|(\\.pro)|(\\.red)|(\\.kim)|(\\.space)|(\\.link)|(\\.click)|(\\.news)|(\\.news)|(\\.ltd)|(\\.website)" +   "|(\\.biz)|(\\.help)|(\\.mom)|(\\.work)|(\\.date)|(\\.loan)|(\\.mobi)|(\\.live)|(\\.studio)|(\\.info)|(\\.pics)|(\\.photo)|(\\.trade)|(\\.vc)|(\\.party)|(\\.game)|(\\.rocks)|(\\.band)" +     "|(\\.gift)|(\\.wiki)|(\\.design)|(\\.software)|(\\.social)|(\\.lawyer)|(\\.engineer)|(\\.org)|(\\.net.cn)|(\\.org.cn)|(\\.gov.cn)|(\\.name)|(\\.tv)|(\\.me)|(\\.asia)|(\\.co)|(\\.press)|(\\.video)|(\\.market)" +  "|(\\.games)|(\\.science)|(\\.中国)|(\\.公司)|(\\.网络)|(\\.pub)" +  "|(\\.la)|(\\.auction)|(\\.email)|(\\.sex)|(\\.sexy)|(\\.one)|(\\.host)|(\\.rent)|(\\.fans)|(\\.cn.com)|(\\.life)|(\\.cool)|(\\.run)" +  "|(\\.gold)|(\\.rip)|(\\.ceo)|(\\.sale)|(\\.hk)|(\\.io)|(\\.gg)|(\\.tm)|(\\.com.hk)|(\\.gs)|(\\.us))";

        Pattern p = Pattern.compile(regStr);

 Matcher m = p.matcher(host);

        m.find();

        host = m.group();

        return host;

    }