Method 1:
Call the Windows doscommand to read the MAC address from the output:
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(cmd.exe C (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" and "ARP-a"... we can get the Mac list... haha !!
Disadvantage: only the MAC address of the server can be obtained. If you want to obtain the MAC address of the client, you need to use the applet. Only for the MS-WIN system.
Method 2:
You can use JS or VBScript to call the WMI interface to obtain the MAC address of the client.
<HTML>
<Head>
<Title> WMI scripting HTML </title>
<Script for = "foo" event = "oncompleted (hresult, perrorobject, pasynccontext)" Language = "jscript">
document.forms000002.16.txt macaddr. value = Unescape (macaddr);
document.forms1_02.16.txt ipaddr. value = Unescape (ipaddr);
document.forms%0%.txt dnsname. value = Unescape (sdnsname);
// document. formbar. submit ();
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;
}< br>
<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>
</Html>
For more information about WMI, see 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. What we had to do with heavyweight programming tools was now done with JS/VBScript.
Obtain the MAC address of multiple NICs:
If (objobject. macaddress! = NULL & objobject. macaddress! = "Undefined "){
Macaddr = objobject. macaddress;
Alert (macaddr );
}
Disadvantages: ActiveX support is required, which is effective for MS-WIN system.
Method 3:
To send a UDP query with 137 ports:
For a Windows client (which is converted to a server role upon retrieval), the NetBIOS protocol is on port 137, so we only need to send a UDP query to port 137, you can obtain all the NIC addresses of the ENI after obtaining the return value.
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