java JNI错误java.lang.UnsatisfiedLinkError:

java -Djava.library.path=. TestJNI
>>>>

Exception in thread "main" java.lang.UnsatisfiedLinkError: TestJNI.calibrate([D[DII)[D
 at TestJNI.calibrate(Native Method)
 at TestJNI.main(TestJNI.java:61)

I know the library is getting loaded otherwise the error says cant find calibrate library. what does the above error mean?

我知道图书馆正在被载入否则错误说找不到校准图书馆。上面的错误是什么意思?

EDIT

编辑

this is my implementation-

——这是我实现

JNIEXPORT jdoubleArray JNICALL Java_TestJNI_cailbrate (JNIEnv * env, jobject jobj, jdoubleArray rtt, jdoubleArray distance ,jint activecount,jint passivecount) {
jdoubleArray jresult = (*env)->NewDoubleArray(env,3);
 .......
return jresult;
}

are the parameters declared correctly?

参数声明正确吗?

2 个解决方案

#1

This message means that Java is looking for a native method that looks like the Java method

这条消息意味着Java正在寻找一个与Java方法相似的本机方法

double[] calibrate(double[], double[], int, int)

If you have generated your header files correctly, and built the library, this most likely means you are missing the implementation of that method.

如果您已经正确地生成了头文件并构建了库，这很可能意味着您丢失了该方法的实现。

Some things that come to mind:

我想到了一些事情:

Did you rebuild the library after you implemented the method?
在实现该方法之后，您重新构建了库吗?
Did you happen to change the interface of the Java method after you built the library?
在构建库之后，您是否碰巧更改了Java方法的接口?

#2

Another cause of this cryptic error is when you import the incorrect <jni.h> file. For instance, if you are compiling against x86 but point your includes path to the x64 flavor of the header.

这个神秘错误的另一个原因是当您导入不正确的文件。例如，如果您正在编译x86，但是将包含路径指向header的x64风格。时。h>

#1