用nginx代理的配置

添加配置
image.png

  1.         proxy_set_header   Host             $host$server_port;
  2.         proxy_set_header   X-Real-IP        $remote_addr;
  3.         proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
  4.         proxy_set_header   X-Forwarded-Proto $scheme;

代码

  1. public static String getClientIpAddress(HttpServletRequest request) {
  2.         // 获取请求主机IP地址,如果通过代理进来，则透过防火墙获取真实IP地址
  3.         String headerName = "x-forwarded-for";
  4.         String ip = request.getHeader(headerName);
  5.         if (null != ip && ip.length() != 0 && !"unknown".equalsIgnoreCase(ip)) {
  6.             // 多次反向代理后会有多个IP值，第一个IP才是真实IP,它们按照英文逗号','分割
  7.             if (ip.indexOf(",") != -1) {
  8.                 ip = ip.split(",")[0];
  9.             }
  10.         }
  11.         if (checkIp(ip)) {
  12.             headerName = "Proxy-Client-IP";
  13.             ip = request.getHeader(headerName);
  14.         }
  15.         if (checkIp(ip)) {
  16.             headerName = "WL-Proxy-Client-IP";
  17.             ip = request.getHeader(headerName);
  18.         }
  19.         if (checkIp(ip)) {
  20.             headerName = "HTTP_CLIENT_IP";
  21.             ip = request.getHeader(headerName);
  22.         }
  23.         if (checkIp(ip)) {
  24.             headerName = "HTTP_X_FORWARDED_FOR";
  25.             ip = request.getHeader(headerName);
  26.         }
  27.         if (checkIp(ip)) {
  28.             headerName = "X-Real-IP";
  29.             ip = request.getHeader(headerName);
  30.         }
  31.         if (checkIp(ip)) {
  32.             headerName = "remote addr";
  33.             ip = request.getRemoteAddr();
  34.             // 127.0.0.1 ipv4, 0:0:0:0:0:0:0:1 ipv6
  35.             if ("127.0.0.1".equals(ip) || "0:0:0:0:0:0:0:1".equals(ip)) {
  36.                 //根据网卡取本机配置的IP
  37.                 InetAddress inet = null;
  38.                 try {
  39.                     inet = InetAddress.getLocalHost();
  40.                 } catch (UnknownHostException e) {
  41.                     LOGGER.error("getClientIp  getLocalHost error " + e);
  42.                     e.printStackTrace();
  43.                 }
  44.                 ip = inet.getHostAddress();
  45.             }
  46.         }
  47.         LOGGER.info("getClientIp  IP is " + ip + ", headerName = " + headerName);
  48.         return ip;
  49.     }
  50.     private static boolean checkIp(String ip) {
  51.         if (null == ip || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
  52.             return true;
  53.         }
  54.         return false;
  55.     }