JNI中的UnsatisfiedLinkError [英] UnsatisfiedLinkError in JNI

问题描述

我想使用JNI从Java调用C#代码
JNI调用C ++库，然后C ++调用C#

我的代码在这里

I want to call C# code from Java using JNI
JNI call C++ Library,then C++ call C#

My Code is here

package javacsharptest;

public class JavaCSharpTest {
  public native void display();
    static {
        System.loadLibrary("JavaCSharpTest");
    }
    public static void main (String[] args) {
            new JavaCSharpTest().display();
    }
}

我收到此错误，

线程主"中的异常java.lang.UnsatisfiedLinkError:javacsharptest.JavaCSharpTest.display()V
在javacsharptest.JavaCSharpTest.display(本机方法)
在javacsharptest.JavaCSharpTest.main(JavaCSharpTest.java:18)


我已经将JavaCSharpTest.dll放入C:\ Windows \ System32

请帮助我:confused:

I got this error,

Exception in thread "main" java.lang.UnsatisfiedLinkError: javacsharptest.JavaCSharpTest.display()V
at javacsharptest.JavaCSharpTest.display(Native Method)
at javacsharptest.JavaCSharpTest.main(JavaCSharpTest.java:18)


I''ve already put JavaCSharpTest.dll into C:\Windows\System32

Please Help me:confused:

推荐答案

看看这个:
Java本机接口:程序员指南和规范 [

Take a look at this:
Java Native Interface: Programmer''s Guide and Specification[^]

You need proper stdcall function export entries in your dll

Regards
Espen Harlinn

使用此命令时:

"System.loadLibrary(" JavaCSharpTest);"
loadLibrary

那么dll文件必须位于，x:\ Program Files \ Java \ jdk1.6.0_20 \ bin

否则，您可以使用System.load("x:\ JavaCSharpTest.dll");

https://sites.google.com/site/stark9000/java-native-interface-helloworld

when you you use this command :

"System.loadLibrary("JavaCSharpTest");"
loadLibrary

then the dll file need to be in , x:\Program Files\Java\jdk1.6.0_20\bin

else you can use , System.load("x:\JavaCSharpTest.dll");

https://sites.google.com/site/stark9000/java-native-interface-helloworld

检查是否正确定义了C库中的函数定义(通常通过运行 javah [

Check that your function definition in the C library has been correctly defined (usually by running the javah[^] command against your Java class file.

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