码迷,mamicode.com
首页 > 编程语言 > 详细

java 获取真实IP

时间:2020-09-17 16:57:49      阅读:32      评论:0      收藏:0      [点我收藏+]

标签:methods   静态   ase   eal   html   tip   获取客户端ip   method   nginx   

1、java代码

/** 获取客户端IP */
    public static final String getClientIp(HttpServletRequest request) {
        String ip = request.getHeader("X-Forwarded-For");
        if (StringUtils.isBlank(ip) || "unknown".equalsIgnoreCase(ip)|| "127.0.0.1".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if (StringUtils.isBlank(ip) || "unknown".equalsIgnoreCase(ip)|| "127.0.0.1".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if (StringUtils.isBlank(ip) || "unknown".equalsIgnoreCase(ip)|| "127.0.0.1".equalsIgnoreCase(ip)) {
            ip = request.getHeader("X-Real-IP");
        }
        if (StringUtils.isBlank(ip) || "unknown".equalsIgnoreCase(ip)|| "127.0.0.1".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
        }
        if (StringUtils.isBlank(ip) ||"127.0.0.1".equals(ip)|| ip.indexOf(":") > -1) {
            try {
                ip = InetAddress.getLocalHost().getHostAddress();
            } catch (UnknownHostException e) {
                ip = null;
            }
        }
        // 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;
    }

2、nginx需要进行相应修改,重点  proxy_set_header 

server {
        listen   xxxx;
        server_name  127.0.0.1;
        # 静态页面目录
        root      xxxxxxxxxx;
        # 默认首页
        index      login.html;
        proxy_set_header Host  $http_host;             
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header REMOTE-HOST $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        add_header Access-Control-Allow-Origin *;
        add_header Access-Control-Allow-Methods ‘GET,POST‘;
        add_header Access-Control-Allow-Headers ‘DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization‘;
        #proxy_cookie_path /* /*;
        client_max_body_size    100m;

        location / {
            proxy_set_header Host  $http_host;             
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header REMOTE-HOST $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            add_header Access-Control-Allow-Origin *;
            add_header Access-Control-Allow-Headers ‘DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization‘;
            add_header Access-Control-Allow-Methods GET,POST,OPTIONS;
            ......
        }
   }

 

java 获取真实IP

标签:methods   静态   ase   eal   html   tip   获取客户端ip   method   nginx   

原文地址:https://www.cnblogs.com/xiufengd/p/13625361.html

(0)
(0)
   
举报
评论 一句话评论(0
登录后才能评论!
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!