获取用户ip地址，为什么获取不到代理过之后的

<%@
page language="java" contentType="text/html; charset=UTF-8"

    pageEncoding="UTF-8"
import="org.apache.commons.lang3.StringUtils;"%>

<!DOCTYPE

html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<%!

    public
static String getRmoteIP(HttpServletRequest request){

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

    if(StringUtils.isNotBlank(ip)){

        String[]
ips = StringUtils.split(ip, ",");

        if(ips
!= null){

            for(String
tmpIp: ips){

                if(StringUtils.isBlank(tmpIp))

                    continue;

                tmpIp
= tmpIp.trim();

                if(tmpIp
!= null && !tmpIp.startsWith("10.") && !tmpIp.startsWith("192.")){

                    return
tmpIp.trim();

                }

            }

        }

    }

    ip
= request.getHeader("x-real-ip");

    if(isIPAddr(ip))

        return
ip;

    ip
= request.getRemoteAddr();

    if(ip.indexOf(".")
!= -1)

        ip
= "127.0.0.1";

    return
ip;

}

public
static boolean isIPAddr(String addr){

    if(StringUtils.isBlank(addr))

        return
false;

    String[]
ips = StringUtils.split(addr,".");

    if(ips.length
!= 4)

        return
false;

    try{

        int
ipa = Integer.parseInt(ips[0]);

        int
ipb = Integer.parseInt(ips[1]);

        int
ipc = Integer.parseInt(ips[2]);

        int
ipd = Integer.parseInt(ips[3]);

    

        return
ipa >= 0 && ipa <= 255 && ipb >= 0 && ipb <= 255 && ipc >= 0 && ipc <= 255

                &&
ipd >= 0 && ipd <= 255;

    }catch(Exception
e){}

    return
false;

}

public
static String getDomainOfServerName(String host){

    if(isIPAddr(host))

        return
null;

    

    String[]
names = StringUtils.split(host, ".");

    int
len = names.length;

    if(len
== 1) return null;

    if(len
== 3)

        return
makeup(names[len -2], names[len - 1]);

    if(len
> 3){

        String
dp = names[len - 2];

        if(dp.equalsIgnoreCase("com")
|| dp.equalsIgnoreCase("gov") || dp.equalsIgnoreCase("cn"))

            return
makeup(names[len - 3], names[len - 2], names[len - 1]);

        else

            return
makeup(names[len -2], names[len - 1]);

    }

    return
host;

}

/*

 *
拼接

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时间： 2024-08-05 14:52:43

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