IPUtil类---获取登录用户IP地址

package com.study.base.common.util; import javax.servlet.http.HttpServletRequest; import java.net.InetAddress; import java.net.UnknownHostException; public class IpUtil { /** * 获取登录用户IP地址 * * @param request * @return */ public static String getIpAddr(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.getRemoteAddr(); if (ip.equals("127.0.0.1")) { //根据网卡取本机配置的IP InetAddress inet = null; try { inet = InetAddress.getLocalHost(); } catch (UnknownHostException e) { e.printStackTrace(); } ip = inet.getHostAddress(); } } // 对于通过多个代理的情况，第一个IP为客户端真实IP,多个IP按照','分割 if(ip != null && ip.length() > 15){ if(ip.indexOf(",") > 0){ ip = ip.substring(0, ip.indexOf(",")); } } return ip; } }