Calling DLL function

[Sahil Sharma]

Hi,

How can I call a dll function from a java class ?

[Christophe Verré]

Try J/Direct

[Stan James]

All I can find on J/Direct is a feature of the Microsoft JVM or JDirect (with no slash) for Apple. Is there something else I'm missing?

JNI is the usual Java technology for this. You have to make a custom DLL that understands JNI but it can call any other DLL through standard calls.

Java -> JNI -> Custom DLL -> Call -> other DLL

You can also Google for "java com bridge" and find a number of free and commercial products that will do COM calls. The quality and price varies termendously.
[ December 28, 2005: Message edited by: Stan James ]

[Jignesh Patel]

I believe the engineer is capable enough of giving custom DLL so you don't need to follow long hiearchy.
.

Java -> JNI -> Custom DLL -> Call -> other DLL

JNI->Custom DLL is enough

JNI is a efficient solution then trying anything else.

The other efficietn way of doing, avoid DLL and go for webservice.
So java webservice calls the other technology webservice.

[Rick O'Shay]

Originally posted by Sahil Sharma:
Hi,

How can I call a dll function from a java class ?

 
public class Foo 
{
    static { System.loadLibrary("myDLL"); }
 
    public native void bar(String message);
 
    public static void main(String[] args) { new Foo().bar("Woo hoo!"); }
}