Calling native method

Question

Guys please help me with following error.
I am running a simple JNI program,after creating and loading the dll i am getting following error.......
Exception in thread "main" java.lang.UnsatisfiedLinkError: print
"print" is the native method in java class Hello.java
Hello.h has method declaration as :
JNIEXPORT void JNICALL Java_Hello_print
(JNIEnv *, jobject);
and C++ file has method defined as :
JNIEXPORT void JNICALL
Java_Hello_print(JNIEnv *env, jobject obj)
printf("Hello World!\n");
return;
please help me out...it has been 3 days banging against JNI ...

Answer 1

Guys please help me with following error.
I am running a simple JNI program,after creating and
loading the dll i am getting following error.......
Exception in thread "main"
java.lang.UnsatisfiedLinkError: print
"print" is the native method in java class
Hello.java
Hello.h has method declaration as :
JNIEXPORT void JNICALL Java_Hello_print
(JNIEnv *, jobject);
and C++ file has method defined as :
JNIEXPORT void JNICALL
Java_Hello_print(JNIEnv *env, jobject obj)
printf("Hello World!\n");
return;
please help me out...it has been 3 days banging
against JNI ...If your Java code is in a package, then your native header file declaration is wrong. The javah tool expects the fully qualified class name. So, if your Hello class is in package com.foo.hello, you should generate the header file like this:
javah com.foo.hello.HelloThen the native header declaration will look like this:
JNIEXPORT void JNICALL Java_com_foo_hello_Hello_print
(JNIEnv *, jobject);