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）
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