B4J Library jGetMac (Gets MAC Address)

This is a simple library that returns the MAC Address of the current PC. Designed to work on B4J
**Does not work on B4A**

example.

Dim S As String
Dim ti As jGetMac

S = ti.MacAddressFromClient

lbl1.Text = S

 

[jmon]

Does it work on Linux and Mac?

I think that if you have more functions like this, (like jDiskspace) you should regroup them in a library called jOsUtils or something like that.

Thanks for sharing, I will use it for sure

 

[giga]

I have not tested it on Linux or Mac, only Windows. I am in the process of combining libraries since JGetMac is a single return it makes sense to combine. I have a few more utilities coming to the forum. Just cleaning up the bugs before I release them.

 

[rwblinn]

Hi,

thanks for sharing this.

FYI: In exploring B4J capabilities, did seek for building this functionality with B4J instead of Java.
See (http://www.rwblinn.de/b4j/b4jhowto/examples/b4jhowtojavaobject.zip) which is one of my B4J HOWTOs example projects.
Select net.NetNetworkInterface from the accordion.

 

[magoandroid]

FYI: In exploring B4J capabilities, did seek for building this functionality with B4J instead of Java.
See (http://www.rwblinn.de/b4j/b4jhowto/examples/b4jhowtojavaobject.zip) which is one of my B4J HOWTOs example projects.
Select net.NetNetworkInterface from the accordion.

Thanks Rob,
always great contributions.
MAgo

 

[tsteward]

Does not return MAC Address on a MAC.
This is a mixture of window, android and the last one is a MAC

 

[giga]

Does not return MAC Address on a MAC.
This is a mixture of window, android and the last one is a MAC
View attachment 30531

I am researching/working on a new version that should work for mac.

 

[giga]

Does not return MAC Address on a MAC.
This is a mixture of window, android and the last one is a MAC
View attachment 30531

@tsteward
What mac OS are you using?

 

[tsteward]

I have no idea I emailed my program to a friend to test my registration procedure for me.
Your library returned

MacBook-Pro.local: MacBook-Pro.local: nodename nor servname provided, or not known

 

[giga]

I am researching/working on a new version that should work for mac.

@tsteward

I have been researching this error "MacBook-Pro.local: MacBook-Pro.local: nodename nor servname provided, or not known".

What I can see this may be a bug in Java 7 according to http://stackoverflow.com/questions/...s-getlocalhost-work-okay-with-java-6-but-fail

If they upgrade java to version 8 does it work?

 

[tsteward]

Ill ask and see.

 

[tsteward]

yes upgrading to java v8 solved it. now when he registers it sends me his mac addy.

 

[giga]

Thanks for the follow up.

 

[Douglas Farias]

many thx for this lib.
anyone know if this works fine on linux?

 

[giga]

I have not tested it on Linux or Ubuntu. I believe @jmon has tried it not sure though.

 

[Fernando Melo]

In Linux, didnt work, I use this:

mac = File.ReadString("/sys/class/net/eth0","address")

 

[Nokia]

I get error if I have no active internet connection..

Program started.
Error occurred on line: 179 (Main)
java.lang.NullPointerException
at giga.getMac_getMac.GetMACAddress.getMacAddressFromClient(GetMACAddress.java:50)
at b4j.example.main._appstart(main.java:308)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:607)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:228)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:158)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:93)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:90)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:84)
at b4j.example.main.start(main.java:36)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
at java.lang.Thread.run(Thread.java:745)

 

[giga]

What OS are you working with? Are you using the example above?

 

[Nokia]

What OS are you working with? Are you using the example above?

Windows Vista, and I am working with example above..

  Dim ti As jGetMac
  Log(ti.MacAddressFromClient)

 

[giga]

Windows Vista, and I am working with example above..

  Dim ti As jGetMac
  Log(ti.MacAddressFromClient)

Do you have more than one network card? Your code works on my Windows 7 system.