获取用户ip地址，为什么获取不到代理过之后的

时间：2014-12-14 07:04:50 阅读：202 评论：0 收藏：0 [点我收藏+]

标签：style http io ar color os sp for java

<%@
 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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获取用户ip地址，为什么获取不到代理过之后的

标签：style http io ar color os sp for java

原文地址：http://blog.csdn.net/leed2012/article/details/41921543

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