懒羊羊
2023-11-14 ee4d94defe7cc7f36f87aebf2e9efed38ba93a40
提交 | 用户 | 时间
4779be 1 package cn.stylefeng.guns.modular.zsx.kb.utils;
2
3 import javax.servlet.http.HttpServletRequest;
4
5 /**
6  * @Author: ll
7  * @Date: 2021/4/1 9:20
8  * @Version 1.0
9  */
10   public class IPUtil {
11     //获取ip地址
12     public static String getRealIp(HttpServletRequest request) {
13         String ip = request.getHeader("x-forwarded-for");
14         System.out.println("x-forwarded-for ip: " + ip);
15         if (ip != null && ip.length() != 0 && !"unknown".equalsIgnoreCase(ip)) {
16             // 多次反向代理后会有多个ip值,第一个ip才是真实ip
17             if( ip.indexOf(",")!=-1 ){
18                 ip = ip.split(",")[0];
19             }
20         }
21         if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
22             ip = request.getHeader("Proxy-Client-IP");
23         }
24         if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
25             ip = request.getHeader("WL-Proxy-Client-IP");
26         }
27         if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
28             ip = request.getHeader("HTTP_CLIENT_IP");
29         }
30         if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
31             ip = request.getHeader("HTTP_X_FORWARDED_FOR");
32         }
33         if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
34             ip = request.getHeader("X-Real-IP");
35         }
36         if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
37             ip = request.getRemoteAddr();
38         }
39         return ip;
40     }
41 }