SendMessage from Java app

Question

How do I send a message from a Java app to another app? In Delphi and C# we have the SendMessage api:

But I was not able to find it on Java.

are you meaning MSMQ, maybe accesible via J++ (if still exists), that's MS reactions to the Websphere MQ, maybe I wrong ... implemented in NET Framework 1.1.xxx — mKorbel, Jun 03 '11 at 20:13
maybe yes, for example here :-) http://stackoverflow.com/questions/506022/java-and-msmq — mKorbel, Jun 03 '11 at 20:14

score 3 · Accepted Answer · edited May 23 '17 at 10:29

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Java is a platform-independent language. If you want to do something very platform-specific, you will have to call some native code. You can use JNI for that purpose. Also, you can check the following question for some other options: How to use winapi functions in java?

edited May 23 '17 at 10:29

Community

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answered Jun 03 '11 at 20:10

Olaf

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score 2 · Answer 2 · answered Jun 03 '11 at 20:09

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You have to make that kind of calls using JNI http://java.sun.com/developer/onlineTraining/Programming/JDCBook/jni.html

answered Jun 03 '11 at 20:09

Marcelo

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duffymo · Answer 3 · 2011-06-03T20:30:14.920

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What kind of message?

You can use sockets, RMI, HTTP, CORBA - the implementation will depend on how you want to develop and deploy the clients and servers.

One common way to have apps talk to each other these days is using web services, SOAP or REST. No one knows you're a dog on the Internet; no client knows the language you're written in if you're an HTTP-based web service.

edited Jun 03 '11 at 20:30

answered Jun 03 '11 at 19:59

duffymo

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Follow the link on my post and you will see. :) – Rafael Colucci Jun 03 '11 at 20:02
I think there are better solutions than JNI. You give up all the cross-platform benefit of Java with JNI. – duffymo Jun 03 '11 at 20:29
From the question it is not clear whether OP has any control over the non-Java app implementation. If this is indeed a constraint, going native is the only, if unfortunate, choice. – Olaf Jun 03 '11 at 21:03
@olaf I dont have control over the java app but I do have control over the non-java app. – Rafael Colucci Jun 06 '11 at 14:21

SendMessage from Java app

3 Answers3