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获取用户ip地址，为什么获取不到代理过之后的

2024-08-07 20:49:58   218人阅读

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="org.apache.commons.lang3.StringUtils;"%>
<!DOCTYPEhtml 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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获取用户ip地址，为什么获取不到代理过之后的


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