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java获取当前机器的公网ip

时间:2019-07-12 16:54:48      阅读:142      评论:0      收藏:0      [点我收藏+]

标签:length   equals   公网   index   ignore   spl   equal   ipa   ase   

package com.Interface.util;

import javax.servlet.http.HttpServletRequest;

/**
 * 测试类
 * 
 * @author 华文
 * @date 2019年7月5日
 * @version 1.0
 */
public class Test {

    /**
     * 获取当前公网ip
     */
    public static String getIpAddr(HttpServletRequest request) {
        String ip = request.getHeader("x-forwarded-for");
        if (ip != null && ip.length() != 0 && !"unknown".equalsIgnoreCase(ip)) {
            // 多次反向代理后会有多个ip值,第一个ip才是真实ip
            if (ip.indexOf(",") != -1) {
                ip = ip.split(",")[0];
            }
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
            System.out.println("Proxy-Client-IP ip: " + ip);
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
            System.out.println("WL-Proxy-Client-IP ip: " + ip);
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("HTTP_CLIENT_IP");
            System.out.println("HTTP_CLIENT_IP ip: " + ip);
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("HTTP_X_FORWARDED_FOR");
            System.out.println("HTTP_X_FORWARDED_FOR ip: " + ip);
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("X-Real-IP");
            System.out.println("X-Real-IP ip: " + ip);
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
            System.out.println("getRemoteAddr ip: " + ip);
        }
        return ip;
    }
}

 

java获取当前机器的公网ip

标签:length   equals   公网   index   ignore   spl   equal   ipa   ase   

原文地址:https://www.cnblogs.com/w1441639547/p/11176968.html

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