Java获取登录用户IP地址

 /**
      * 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("0:0:0:0:0:0:0:1")) {
             ip = "本地";
         }
         return ip;
     }