1、java代碼

/** 獲取客戶端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; } } // 對于通過多個代理的情況，第一個IP為客戶端真實IP,多個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需要進行相應(yīng)修改,重點 proxy_set_header

server { listen xxxx; server_name 127.0.0.1; # 靜態(tài)頁面目錄 root xxxxxxxxxx; # 默認(rèn)首頁 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; ...... } }

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