JNI不满意链接错误？ [英] JNI unsatisfiedLinkError?

问题描述

我正在练习JNI并创建了共享库文件Samplelib.so。我将创建库文件的目录添加到java.library.path中，当我运行java文件时，我得到了java.lang.UnsatisfiedLinkError。这是我的Sample.java。

I am practising JNI and created the shared library file Samplelib.so. I added the directory in which the library file is created, to the java.library.path and when I run the java file, I get java.lang.UnsatisfiedLinkError. Here is my Sample.java.

import java.util.*;
public class Sample{
public native int intmethod(int n);
public native String stringmethod(String s);
public static void main(String[] args) {
    try{
    //System.setProperty( "java.library.path", "/home/sudhagar/Project" );
    System.load("libSample");
    Sample sample=new Sample();
    int sq=sample.intmethod(2);
    String text=sample.stringmethod("JAVA");
    System.out.println(sq);
    System.out.println(text);
}
catch(UnsatisfiedLinkError e){
    String property = System.getProperty("java.library.path");
    StringTokenizer parser = new StringTokenizer(property, ";");
    while (parser.hasMoreTokens()) {
    System.err.println(parser.nextToken());
    }
}
}
}

我的Sample.c文件，

My Sample.c file,

#include "Sample.h"
#include <string.h>

JNIEXPORT jint  JNICALL Java_Sample_intmethod
(JNIEnv *env, jobject obj, jint n){
    return n*n;
}

JNIEXPORT jstring JNICALL Java_Sample_stringmethod
(JNIEnv *env, jobject obj, jstring n){
    return n;
}   

void main(){}   

我用过以下命令创建创建共享库，
gcc -shared -I /.../ include -I /.../ include / linux -o libSample.so Sample.c

I used following command to create the create the shared library, gcc -shared -I/.../include -I/.../include/linux -o libSample.so Sample.c

推荐答案

使用

  System.loadLibrary("Samplelib");

而不是

System.load("Samplelib");

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