獲取當前網路ip
阿新 • • 發佈:2018-12-13
package com.shili.util; import java.net.InetAddress; import java.net.UnknownHostException; import javax.servlet.http.HttpServletRequest; public class HttpUtil { /** * 獲取當前網路ip * * @param request * @return */ public static String getIpAddr(HttpServletRequest request) { String ipAddress = request.getHeader("x-forwarded-for"); if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) { ipAddress = request.getHeader("Proxy-Client-IP"); } if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) { ipAddress = request.getHeader("WL-Proxy-Client-IP"); } if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) { ipAddress = request.getRemoteAddr(); if (ipAddress.equals("127.0.0.1") || ipAddress.equals("0:0:0:0:0:0:0:1")) { // 根據網絡卡取本機配置的IP InetAddress inet = null; try { inet = InetAddress.getLocalHost(); } catch (UnknownHostException e) { e.printStackTrace(); } ipAddress = inet.getHostAddress(); } } // 對於通過多個代理的情況,第一個IP為客戶端真實IP,多個IP按照','分割 if (ipAddress != null && ipAddress.length() > 15) { // "***.***.***.***".length() = 15 if (ipAddress.indexOf(",") > 0) { ipAddress = ipAddress.substring(0, ipAddress.indexOf(",")); } } return ipAddress; } }