asp.net获取客户端IP地址网卡等
<%@ page language="c#" autoeventwireup="true" codefile="mac.x.cs" inherits="mac" %>
<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd">
<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