获取客户端的IP地址

Question

我正在使用JSP，Servlets（Container：Glassfish）开发一个Web应用程序，我需要在其中获取客户端IP Address。我正在获取客户端的IP地址，因为我只想在有办公室的计算机上访问某些页面（如客户维护表单），我想限制访问办公室以外的那些页面。以下是我的代码到目前为止：WAY1String ipAddress =  request.getRemoteAddr();System.out.println("IP Address: "+ipAddress);way2String ipAddress=null;String getWay = request.getHeader("VIA");   // GatewayipAddress = request.getHeader("X-FORWARDED-FOR");   // proxyif(ipAddress==null){    ipAddress = request.getRemoteAddr();}System.out.println("IP Address: "+ipAddress);different IP Address每次重新启动计算机时，上面的代码都会给我（关机 - >启动或重启）。我变得IP6喜欢：fe80:0:0:0:20ca:1776:f5ff:ff15%13让我知道这段代码有什么问题？

Answer 1

我使用以下静态帮助器方法来检索客户端的IP：

public static String getClientIpAddr(HttpServletRequest request) {  

    String ip = request.getHeader("X-Forwarded-For");  

    if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {  

        ip = request.getHeader("Proxy-Client-IP");  

    }  

    if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {  

        ip = request.getHeader("WL-Proxy-Client-IP");  

    }  

    if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {  

        ip = request.getHeader("HTTP_X_FORWARDED_FOR");  

    }  

    if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {  

        ip = request.getHeader("HTTP_X_FORWARDED");  

    }  

    if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {  

        ip = request.getHeader("HTTP_X_CLUSTER_CLIENT_IP");  

    }  

    if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {  

        ip = request.getHeader("HTTP_CLIENT_IP");  

    }  

    if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {  

        ip = request.getHeader("HTTP_FORWARDED_FOR");  

    }  

    if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {  

        ip = request.getHeader("HTTP_FORWARDED");  

    }  

    if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {  

        ip = request.getHeader("HTTP_VIA");  

    }  

    if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {  

        ip = request.getHeader("REMOTE_ADDR");  

    }  

    if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {  

        ip = request.getRemoteAddr();  

    }  

    return ip;  

}

Answer 2

我喜欢这个，你可以尝试一下

public 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();      

   }      

   return ip;      

}