获取当前ip

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于 2016-05-27 13:23:21 发布

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本文链接：https://blog.youkuaiyun.com/xunwei0303/article/details/51515711

public static String getRealIp(HttpServletRequest req) {
   String ip = req.getHeader("X-Real-IP");
   if (ip != null) {
      if (ip.indexOf(',') == -1) {
         return ip;
      }
      return ip.split(",")[0];
   }

   if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
      ip = req.getHeader("Proxy-Client-IP");
   }
   if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
      ip = req.getHeader("WL-Proxy-Client-IP");
   }
   if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
      ip = req.getRemoteAddr();
   }

   return ip;
}