How can I send a command to a running Java program?

Question

I have a Java program and I want to send a command from my Win32 application. Normally I would use WM_COPYDATA, but what parameters do I have with Java?

Answer 1

There are several ways to interact between Java and Windows. Sorted by strength and difficulty:

• You can use Jawin to handle window messages — it even has a demonstration of how to process messages in a window — or something similar. Of course, if you link your Java program to a library such as Jawin, it will never run on a machine other than Windows.
• Win32 Java, - , localhost. , . , , .
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• Windows COM Java-to-COM: Jacob j-Interop libaries , j-Integra .
• Java COM Sun Java-ActiveX. : Java-ActiveX 1.4, ActiveX Java - JRE Java ActiveX .

Sidenote:, , , Java -. , Windows ANSI, , 81, 8D, 8F, 90 9D undefined Windows-1252, Java , Windows . , , WChar Windows .

Answer 2

, J16 SDiZ.

• - XML-RPC. Java , . . , .
• Java.
• : http://www.coderanch.com/t/328057/Java-General-advanced/java/Use-Named-Pipe-IPC-between
• RMI, , , () . , JNI Windows.

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Answer 3

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Answer 4

Java win32 bith implment , , , .

:

• tcp loopback.
• interop java (JNI?), ( win32)
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Answer 5

- :

• System.in, BufferedReader readLine()
• System.out.println(),

I think Win32 has methods for capturing the input / output streams of a running application.

Basically the Windows equivalent for Linux paths:

ls | grep java