• asp.net 获得客户端 mac 地址


    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using System.Runtime.InteropServices;
    
    namespace WebTestMac
    {
        public partial class WebForm1 : System.Web.UI.Page
        {
            protected void Page_Load(object sender, EventArgs e)
            {
                string str = GetCustomerMac(GetClientIP());
                Response.Write(str);
            }
            [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);
    
            private string GetClientIP()
            {
                string result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
                if (null == result || result == String.Empty)
                {
                    result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
                }
    
                if (null == result || result == String.Empty)
                {
                    result = HttpContext.Current.Request.UserHostAddress;
                }
                return result;
            }
            /// <summary>   
            /// 获取Mac地址信息   
            /// </summary>   
            /// <param name="IP"></param>   
            /// <returns></returns>   
            public static string GetCustomerMac(string IP)
            {
                Int32 ldest = inet_addr(IP);
                Int64 macinfo = new Int64();
                Int32 len = 6;
                int res = SendARP(ldest, 0, ref macinfo, ref len);
                string mac_src = macinfo.ToString("X");
    
                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));
                        }
                    }
                }
    
                return mac_dest;
            }
    
        }
    }


    今天才发现 MAC 地址是 16 进制的。

    macinfo.ToString("X") 获得 居然 是 倒过来的 mac 地址

    测试有点失败,只能是局域网的mac,不是广域网的mac

    ToString("X")  就是显示为16 进制。参见:

    http://msdn.microsoft.com/zh-cn/library/1fd69cbc(v=vs.110).aspx

            string GetMacAddress()
            {
                try
                {
                    string mac = "";
                    ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
                    ManagementObjectCollection moc = mc.GetInstances();
                    foreach (ManagementObject mo in moc)
                    {
                        if ((bool)mo["IPEnabled"] == true)
                        {
                            mac = mo["MacAddress"].ToString();
                            break;
                        }
                    }
                    moc = null;
                    mc = null;
                    return mac;
                }
                catch
                {
                    return "unknow";
                }
            }

    这种方法是获取服务器的MAC

    方式三:通过javascript加载ActiveX来实现:

           优点:任意获取mac地址(可以跨网段获取);

           缺点:需要在客户端浏览器中将activeX的选项全部打开,否则获取不到,所以不怎么稳定;

    前台代码:(WebForm3.aspx)

     

    <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm3.aspx.cs" Inherits="WebApp.WebForm3" %>
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml" >
    <head runat="server">
        <title></title>
                <mce:script language="javascript"><!--
            document.write("<OBJECT id='locator' classid='CLSID:76A64158-CB41-11D1-8B02-00600806D9B6' VIEWASTEXT></OBJECT>");
            document.write("<OBJECT id=foo classid=CLSID:75718C9A-F029-11d1-A1AC-00C04FB6C223></OBJECT>");
            var MACAddr, IPAddr, sDNSName
            function getObject(objObject, objAsyncContext) {
                try {
                    if (MACAddr == null && objObject.IPEnabled) {
                        if (objObject.MACAddress != null && objObject.MACAddress != "undefined")
                            MACAddr = objObject.MACAddress;
                        if (objObject.IPEnabled && objObject.IPAddress(0) != null && objObject.IPAddress(0) != "undefined")
                            IPAddr = objObject.IPAddress(0);
                        if (objObject.DNSHostName != null && objObject.DNSHostName != "undefined")
                            sDNSName = objObject.DNSHostName;
                    }
                }
                catch (err)
                { }
            }
            function setValue(hResult, pErrorObject, pAsyncContext) {
                createTxt("txtMAC", MACAddr);
                createTxt("txtIp", IPAddr);
                createTxt("txtPCName", sDNSName);
            }
            function createTxt(txtName, txtValue) {
                var macTxt = document.createElement("INPUT");
                macTxt.name = txtName;
                macTxt.value = txtValue;
                macTxt.type = "hidden";
                try {
                    document.forms[0].appendChild(macTxt);
                }
                catch (err) {
                    //获取失败
                }
            }
            document.getElementById("foo").attachEvent("OnObjectReady", getObject);
            document.getElementById("foo").attachEvent("OnCompleted", setValue);
            try {
                var service = locator.ConnectServer();
                var MACAddr;
                var IPAddr;
                var DomainAddr;
                var sDNSName;
                service.Security_.ImpersonationLevel = 3;
                service.InstancesOfAsync(foo, 'Win32_NetworkAdapterConfiguration');
            }
            catch (err) {
                //获取失败
            }
        
    // --></mce:script>
    </head>
    <body>
        <form id="form1" runat="server">
        <div>
        
            <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />
        
        </div>
        </form>
    </body>
    </html>

    后台代码:(WebForm3.aspx.cs)

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    namespace WebApp
    {
        public partial class WebForm3 : System.Web.UI.Page
        {
            protected void Page_Load(object sender, EventArgs e)
            {
            }
            /// <summary>
            /// 获取mac地址
            /// </summary>
            /// <returns></returns>
            public string GetMACs()
            {
                try
                {
                    return Request.Form["txtMAC"].ToString();
                }
                catch
                {
                    return "";
                }
            }
            protected void Button1_Click(object sender, EventArgs e)
            {
                Response.Write(GetMACs());
            }
        }
    }

    运行提示:

    启用未标记为可安全执行脚本的ActiveX 第一步:工具->Internet选项 第二步:安全->Internet->自定义级别 第三步:启用“对未标记为可安全执行脚本的ActiveX控件初始化并执行”,如下图所示:

    运行结果:

     第三种未测试,这种太不人性化了,而且不安全

    现在打算 搞 c# 插件开发

    百度 搜索  网页插件开发 c#

    找到了几个案例 ,唉,我试验失败

    http://blog.csdn.net/zhang_88888888/article/details/6721620

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  • 原文地址:https://www.cnblogs.com/bingguang/p/3650022.html
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