content: package com.jeespring.common.utils;
  
  import javax.servlet.http.HttpServletRequest;
  
  /**
   * 获取IP方法
   * 
   * @author JeeSpring
   */
  public class IpUtils
  {
      public static String getIpAddr(HttpServletRequest request)
      {
          if (request == null)
          {
              return "unknown";
          }
          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("X-Forwarded-For");
          }
          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("X-Real-IP");
          }
  
          if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip))
          {
              ip = request.getRemoteAddr();
          }
  
          return "0:0:0:0:0:0:0:1".equals(ip) ? "127.0.0.1" : ip;
      }
  }
  