Method One:
Call the Windows DOS command to read the MAC address from the output result:
public static String getmacaddress () {
String address = "";
String OS = System.getproperty ("Os.name");
if (OS! = null && os.startswith ("Windows")) {
try {
String command = "cmd.exe/c Ipconfig/all";
Process p = runtime.getruntime (). exec (command);
BufferedReader br =
New BufferedReader (
New InputStreamReader (P.getinputstream ()));
String Line;
while (line = Br.readline ()) = null) {
if (Line.indexof ("Physical Address") > 0) {
int index = Line.indexof (":");
Index + = 2;
Address = line.substring (index);
Break
}
}
Br.close ();
return Address.trim ();
}
catch (IOException e) {}
}
return address;
}
We can replace the "ipconfig" to "ping x.x.x.x" and "arp-a" ... We can get the Mac list...haha!!
Disadvantage: Only server-side MAC addresses can be obtained. If you want to get the MAC address of the client, you need an applet. Only for Ms-win systems.
Method Two:
You can use JS or VBScript to invoke the WMI interface to get the MAC address of the client side.
<TITLE>WMI Scripting html</title>
<script for= "foo" event= "oncompleted (Hresult,perrorobject, Pasynccontext)" language= "JScript" >
Document.forms[0].txtmacaddr.value=unescape (MACADDR);
document.forms[0].txtipaddr.value= Unescape (IPADDR);
Document.forms[0].txtdnsname.value =unescape (Sdnsname);
//document.formbar.submit ();
</script>
<script for= "foo" event= " OnObjectReady (objobject,objasynccontext) "language=" JScript;
if (objobject.ipenabled! = NULL && objobject.ipenabled! = "undefined" && objobject.ipenabled = = True)
{
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;
</script>
</ Head>
<body>
<object classid= "Clsid:76a64158-cb41-11d1-8b02-00600806d9b6" id= " Locator "VIEWASTEXT>
</object>
<object classid=" CLSID : 75718c9a-f029-11d1-a1ac-00c04fb6c223 "id=" foo ",
</object>
<script language= "JScript";
var service = Locator. ConnectServer ();
var macaddr;
var ipaddr;
var domainaddr;
var sdnsname;
Service. Security_. impersonationlevel=3;
Service. Instancesofasync (foo, ' Win32_NetworkAdapterConfiguration ');
</script>
<form method= "POST" action= "nicpost.asp" id= "Formfoo" name= "Formbar" >
<input type=text name= "Txtmacaddr" >
<input type=text name= "Txtipaddr" >
<input type=text name= "Txtdnsname" >
</form>
</body>
For more information about WMI, refer to MSDN:
Http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wmisdk/wmi/wmi_tasks_for_scripts_and_applications.asp
In all fairness, WMI is very powerful. Things that need to be done using a heavyweight programming tool can now be done with Js/vbscript.
To obtain the MAC address of multiple network cards:
if (objobject.macaddress! = NULL && objobject.macaddress! = "undefined") {
MACADDR = objobject.macaddress;
alert (MACADDR);
}
Disadvantage: ActiveX support is required. Valid for Ms-win system.
Method Three:
To send a UDP query with 137 ports:
The client of the Windows platform (when it gets converted to the server-side role), the NetBIOS protocol is on 137 ports, we simply send a UDP query to its 137 port, get its return value and get all of its network card address
. Net Technology Discussion Group 4151320
Welcome everyone to join!!!
How to obtain a Client MAC address (three methods)
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