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asp.net获取客户端IP地址网卡等

2019年04月19日  | 移动技术网IT编程  | 我要评论

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<%@ page language="c#" autoeventwireup="true" codefile="mac.x.cs" inherits="mac" %>

<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "">

<html xmlns="">
<head runat="server">
    <title>无标题页</title>
</head>
<body>
    <form id="form1" runat="server">
    <p>
   
    </p>
    </form>
</body>
</html>

 

后台代码:

using system;
using system.collections;
using system.configuration;
using system.data;
using system.linq;
using system.web;
using system.web.security;
using system.web.ui;
using system.web.ui.htmlcontrols;
using system.web.ui.webcontrols;
using system.web.ui.webcontrols.webparts;
using system.xml.linq;
using system.runtime.interopservices;

public partial class mac : system.web.ui.page
{
    [dllimport("iphlpapi.dll")]
    private static extern int sendarp(int32 dest, int32 host, ref int64 mac, ref int32 length);
    [dllimport("ws2_32.dll")]
    private static extern int32 inet_addr(string ip);


    protected void page_load(object sender, eventargs e)
    {
        // 在此处放置用户代码以初始化页面
        try
        {
            string userip = request.userhostaddress;
            string strclientip = request.userhostaddress.tostring().trim();
            int32 ldest = inet_addr(strclientip); //目的地的ip
            int32 lhost = inet_addr("");   //本地服务器的ip
            int64 macinfo = new int64();
            int32 len = 6;
            int res = sendarp(ldest, 0, ref macinfo, ref len);
            string mac_src = macinfo.tostring("x");
            if (mac_src == "0")
            {
                if (userip == "127.0.0.1")
                    response.write("正在访问localhost!");
                else
                    response.write("欢迎来自ip为" + userip + "的朋友！" + "<br>");
                return;
            }

            while (mac_src.length < 12)
            {
                mac_src = mac_src.insert(0, "0");
            }

            string mac_dest = "";

            for (int i = 0; i < 11; i++)
            {
                if (0 == (i % 2))
                {
                    if (i == 10)
                    {
                        mac_dest = mac_dest.insert(0, mac_src.substring(i, 2));
                    }
                    else
                    {
                        mac_dest = "-" + mac_dest.insert(0, mac_src.substring(i, 2));
                    }
                }
            }

            response.write("欢迎来自ip为" + userip + "<br>" + ",mac地址为" + mac_dest + "的朋友！"

             + "<br>");
        }
        catch (exception err)
        {
            response.write(err.message);
        }


    }
}

 


作者 郑文亮

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