Asp.net获取客户端登录者mac地址

asp.net获取客户端登录者的mac地址，有两种方法

1，通过win32特性获得，

        优点：无需在客户端设置；缺点：无法获取服务器的mac（经测试总为0，其实感觉没有必要获取服务器的mac，所以也不算缺点）（能否跨网段获取还没有测试）

2，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；

通过win32特性获得：

  [DllImport("Iphlpapi.dll")] 02 private static extern int SendARP(Int32 dest,Int32 host,ref Int64 mac,ref Int32 length); 03 [DllImport("Ws2_32.dll")] 04 private static extern Int32 inet_addr(string ip); 05 06 private void Page_Load(object sender, System.EventArgs e) 07 { 08 try 09 { 10 string userip=Request.UserHostAddress; 11 string strClientIP = Request.UserHostAddress.ToString().Trim(); 12 Int32 ldest = inet_addr(strClientIP); //目的地的ip 13 Int64 macinfo = new Int64(); 14 Int32 len = 6; 15 int res = SendARP(ldest,0, ref macinfo, ref len); 16 string mac_src=macinfo.ToString("X"); 17 if(mac_src == "0") 18 { 19 if (userip == "127.0.0.1") 20 { 21 Response.Write("正在访问Localhost!"); 22 } 23 else 24 { 25 Response.Write("欢迎来自IP为" + userip + "的朋友！" + "
"); 26 } 27 return; 28 } 29 30 while(mac_src.Length<12) 31 { 32 mac_src = mac_src.Insert(0,"0"); 33 } 34 35 string mac_dest=""; 36 37 for(int i=0;i<11;i++) 38 { 39 if (0 == (i % 2)) 40 { 41 if ( i == 10 ) 42 { 43 mac_dest = mac_dest.Insert(0,mac_src.Substring(i,2)); 44 } 45 else 46 { 47 mac_dest ="-" + mac_dest.Insert(0,mac_src.Substring(i,2)); 48 } 49 } 50 } 51 52 Response.Write ("欢迎来自IP为"+userip+ "
" + ",MAC地址为"+mac_dest+"的朋友！" 53 54 + "
"); 55 } 56 catch(Exception err) 57 { 58 Response.Write(err.Message); 59 } 60 }

通过以上代码则可获取客户端mac，需要在客户机子上面才能看到效果

通过javascript加载ActiveX来实现：

javascript代码如下

document.write(""); 04 document.write(""); 05 var MACAddr, IPAddr, sDNSName 06 function getObject(objObject,objAsyncContext){ 07 try{ 08 if(MACAddr==null && objObject.IPEnabled) 09 { 10 if(objObject.MACAddress != null && objObject.MACAddress != "undefined") 11 MACAddr = objObject.MACAddress; 12 if(objObject.IPEnabled && objObject.IPAddress(0) != null && objObject.IPAddress(0) != "undefined") 13 IPAddr = objObject.IPAddress(0); 14 if(objObject.DNSHostName != null && objObject.DNSHostName != "undefined") 15 sDNSName = objObject.DNSHostName; 16 } 17 } 18 catch(err) 19 { } 20 } 21 function setValue(hResult,pErrorObject, pAsyncContext){ 22 createTxt("txtMAC", MACAddr); 23 createTxt("txtIp", IPAddr); 24 createTxt("txtPCName", sDNSName); 25 } 26 function createTxt(txtName, txtValue){ 27 var macTxt = document.createElement("INPUT"); 28 macTxt.name = txtName; 29 macTxt.value = txtValue; 30 macTxt.type = "hidden"; 31 try 32 { 33 document.forms[0].appendChild(macTxt); 34 } 35 catch(err) 36 { 37 38 //获取失败 39 } 40 } 41 42 document.getElementById("foo").attachEvent("OnObjectReady", getObject); 43 document.getElementById("foo").attachEvent("OnCompleted", setValue); 44 45 try 46 { 47 var service = locator.ConnectServer(); 48 var MACAddr ; 49 var IPAddr ; 50 var DomainAddr; 51 var sDNSName; 52 service.Security_.ImpersonationLevel=3; 53 service.InstancesOfAsync(foo, 'Win32_NetworkAdapterConfiguration'); 54 } 55 catch(err) 56 { 57 //获取失败 58 }

在要获取的aspx页面上面引用以上js，可以在该页面通过以下方法来获取max地址

///

02 /// 获取mac地址 03 ///

04 /// 05 public string GetMACs() 06 { 07 try 08 { 09 return Request.Form["txtMAC"].ToString(); 10 } 11 catch 12 { 13 14 return ""; 15 } 16 }

转自http://www.cnblogs.com/davinci/archive/2010/01/20/1652171.html