求助！用eclipse编写JNI程序出现UnsatisfiledLinkError异常
这两天在学习JNI。用家里的电脑在eclipse上编写没有出问题。但是换了台电脑就出问题了。。最简单的Jni HelloWorld编译不通过。以下是java部分的代码：
package jni;
public class HelloWorld {
static{
System.loadLibrary("helloworld");
}
public native void dispHelloWorld();
/**
* @param args
*/
public static void main(String[] args) {
// TODOAuto-generated method stub
//System.getProperty("java.library.path");
new HelloWorld().dispHelloWorld();
}
}
// Invoked in the java.lang.Runtime class to implement load and loadLibrary.
static void loadLibrary(Class fromClass, String name,
boolean isAbsolute) {
try {
if (!DownloadManager.isJREComplete() &&
!DownloadManager.isCurrentThreadDownloading()) {
DownloadManager.downloadFile("bin/" +
System.mapLibraryName(name));
// it doesn't matter if the downloadFile call returns false --
// it probably just means that this is a user library, as
// opposed to a JRE library
}
} catch (IOException e) {
throw new UnsatisfiedLinkError("Error downloading library " +
name + ": " + e);
} catch (NoClassDefFoundError e) {
// This happens while Java itself is being compiled; DownloadManager
// isn't accessible when this code is first invoked. It isn't an
// issue, as if we can't find DownloadManager, we can safely assume
// that additional code is not available for download.
}
ClassLoader loader =
(fromClass == null) ? null : fromClass.getClassLoader();
if (sys_paths == null) {
usr_paths = initializePath("java.library.path");
sys_paths = initializePath("sun.boot.library.path");
}
if (isAbsolute) {
if (loadLibrary0(fromClass, new File(name))) {
return;
}
throw new UnsatisfiedLinkError("Can't load library: " + name);
}
if (loader != null) {
String libfilename = loader.findLibrary(name);
if (libfilename != null) {
File libfile = new File(libfilename);
if (!libfile.isAbsolute()) {
throw new UnsatisfiedLinkError(
"ClassLoader.findLibrary failed to return an absolute path: " + libfilename);
}
if (loadLibrary0(fromClass, libfile)) {
return;
}
throw new UnsatisfiedLinkError("Can't load " + libfilename);
}
}
for (int i = 0 ; i < sys_paths.length ; i++) {
File libfile = new File(sys_paths[i], System.mapLibraryName(name));
if (loadLibrary0(fromClass, libfile)) {
return;
}
}
if (loader != null) {
for (int i = 0 ; i < usr_paths.length ; i++) {
File libfile = new File(usr_paths[i],
System.mapLibraryName(name));
if (loadLibrary0(fromClass, libfile)) {
return;
}
}
}
// Oops, it failed
throw new UnsatisfiedLinkError("no " + name + " in java.library.path");
}
