服务器IP获取工具类

package com.tartary.turbo.core.util;


import javax.servlet.http.HttpServletRequest;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.util.Enumeration;

/**
 * @Description 服务器IP获取工具类
 * @ClassName ServerIpUtil
 * @author yewenting2013@foxmail.com
 * @date 2017年8月8日 下午5:56:44
 */
public class ServerIpUtil {

	private static final String DEFAULT_SERVER_IP = "127.0.0.1";

	/**
	 * @Description 获取本机IP
	 * @Title getLocalIp
	 * @return
	 */
	public static String getLocalIp() {
		String localIp = DEFAULT_SERVER_IP;
		try {
			InetAddress address = InetAddress.getLocalHost();// 获取的是本地的IP地址
			localIp = address.getHostAddress();
		} catch (UnknownHostException e) {
			e.printStackTrace();
		}
		return localIp;
	}

	/**
	 * @Description 获取服务器IP地址
	 * @Title getMyIp
	 * @return
	 */
	public static String getServerIp() {
		String serverIp = DEFAULT_SERVER_IP;// 本地IP，如果没有配置外网IP则返回它
		try {
			Enumeration
 
   networkInterfaces = NetworkInterface.getNetworkInterfaces();
			boolean flag = false;
			while (networkInterfaces.hasMoreElements() && !flag) {
				NetworkInterface ni = (NetworkInterface) networkInterfaces.nextElement();
				Enumeration
  
    inetAddresses = ni.getInetAddresses(); while (inetAddresses.hasMoreElements()) { InetAddress nextElement = inetAddresses.nextElement(); if (!nextElement.isSiteLocalAddress() && !nextElement.isLoopbackAddress() && nextElement.getHostAddress().indexOf(":") == -1) {// 外网IP serverIp = nextElement.getHostAddress(); flag = true; break; } else if (nextElement.isSiteLocalAddress() && !nextElement.isLoopbackAddress() && nextElement.getHostAddress().indexOf(":") == -1) {// 内网IP serverIp = nextElement.getHostAddress(); } } } } catch (SocketException e) { e.printStackTrace(); } return serverIp; } /** * 获取远程客户端请求的IP地址 * * @param request * @return */ public static String getRemoteClientIp(HttpServletRequest request) { String clientIp = request.getHeader("x-forwarded-for"); if (StringUtil.isNotBlank(clientIp) && !"unknown".equalsIgnoreCase(clientIp)) { // 若有多级反向代理，取X-Forwarded-For中第一个非unknown的有效IP字符串 if (clientIp.contains(",")) { String[] split = clientIp.split(","); for (String ip : split) { if (!"unknown".equalsIgnoreCase(ip)) { return ip; } } } else { return clientIp; } } clientIp = request.getHeader("Proxy-Client-IP"); if (StringUtil.isNotBlank(clientIp) && !"unknown".equalsIgnoreCase(clientIp)) { return clientIp; } clientIp = request.getHeader("WL-Proxy-Client-IP"); if (StringUtil.isNotBlank(clientIp) && !"unknown".equalsIgnoreCase(clientIp)) { return clientIp; } clientIp = request.getRemoteAddr(); if (StringUtil.isNotBlank(clientIp) && !"unknown".equalsIgnoreCase(clientIp)) { return clientIp; } // 都为空时，取本地服务器IP return getLocalIp(); } public static void main(String[] args) { String localIp = getLocalIp(); String serverIp = getServerIp(); System.out.println(localIp); System.out.println(serverIp); } }