在JSP中获取客户端的IP地址 [英] Get IP address of client in JSP

问题描述

我需要在JSP页面中获取客户端的IP地址。我尝试了以下方法：

I need to get the IP address of the client in the JSP page. I have tried the following ways:

request.getRemoteAddr()
request.getHeader("X_FORWARDED_FOR")
request.getHeader("HTTP_CLIENT_IP")
request.getHeader("WL-Proxy-Client-IP")
request.getHeader("Proxy-Client-IP")
request.getHeader("REMOTE_ADDR")

但是，这些方法都没有返回所需的IP地址。如何在JSP页面中获取客户端的IP地址？

However, none of those ways did return the desired IP address. How do I get the IP address of the client in the JSP page?

推荐答案

要获取客户端的IP地址，我'使用以下方法

To get IP address of the client, I've used the following method

<%   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.getHeader("HTTP_CLIENT_IP");  
        }  
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {  
            ip = request.getHeader("HTTP_X_FORWARDED_FOR");  
        }  
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {  
            ip = request.getRemoteAddr();  
        }
        %>

希望这会有所帮助，
请留下反馈。

Hope this helps, please leave a feed back.

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