आपको संभवतः स्थानीय लाइब्रेरी को स्थानीय फ़ाइल सिस्टम में अनजान करना होगा। जहां तक मुझे पता है कि कोड का मूल कोड लोड करने वाले फाइल सिस्टम को देखता है।
इस कोड को आरंभ करने में आपकी सहायता करनी चाहिए (मैंने थोड़ी देर में इसे नहीं देखा है, और यह एक अलग उद्देश्य के लिए है, लेकिन यह चाल करना चाहिए, और मैं इस समय बहुत व्यस्त हूं, लेकिन अगर आपके पास प्रश्न हैं तो बस एक टिप्पणी छोड़ दें और मैं जैसे ही जवाब दूंगा)।
import java.io.Closeable;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.URLDecoder;
import java.security.CodeSource;
import java.security.ProtectionDomain;
import java.util.zip.ZipEntry;
import java.util.zip.ZipException;
import java.util.zip.ZipFile;
public class FileUtils
{
public static String getFileName(final Class<?> owner,
final String name)
throws URISyntaxException,
ZipException,
IOException
{
String fileName;
final URI uri;
try
{
final String external;
final String decoded;
final int pos;
uri = getResourceAsURI(owner.getPackage().getName().replaceAll("\\.", "/") + "/" + name, owner);
external = uri.toURL().toExternalForm();
decoded = external; // URLDecoder.decode(external, "UTF-8");
pos = decoded.indexOf(":/");
fileName = decoded.substring(pos + 1);
}
catch(final FileNotFoundException ex)
{
fileName = null;
}
if(fileName == null || !(new File(fileName).exists()))
{
fileName = getFileNameX(owner, name);
}
return (fileName);
}
private static String getFileNameX(final Class<?> clazz, final String name)
throws UnsupportedEncodingException
{
final URL url;
final String fileName;
url = clazz.getResource(name);
if(url == null)
{
fileName = name;
}
else
{
final String decoded;
final int pos;
decoded = URLDecoder.decode(url.toExternalForm(), "UTF-8");
pos = decoded.indexOf(":/");
fileName = decoded.substring(pos + 1);
}
return (fileName);
}
private static URI getResourceAsURI(final String resourceName,
final Class<?> clazz)
throws URISyntaxException,
ZipException,
IOException
{
final URI uri;
final URI resourceURI;
uri = getJarURI(clazz);
resourceURI = getFile(uri, resourceName);
return (resourceURI);
}
private static URI getJarURI(final Class<?> clazz)
throws URISyntaxException
{
final ProtectionDomain domain;
final CodeSource source;
final URL url;
final URI uri;
domain = clazz.getProtectionDomain();
source = domain.getCodeSource();
url = source.getLocation();
uri = url.toURI();
return (uri);
}
private static URI getFile(final URI where,
final String fileName)
throws ZipException,
IOException
{
final File location;
final URI fileURI;
location = new File(where);
// not in a JAR, just return the path on disk
if(location.isDirectory())
{
fileURI = URI.create(where.toString() + fileName);
}
else
{
final ZipFile zipFile;
zipFile = new ZipFile(location);
try
{
fileURI = extract(zipFile, fileName);
}
finally
{
zipFile.close();
}
}
return (fileURI);
}
private static URI extract(final ZipFile zipFile,
final String fileName)
throws IOException
{
final File tempFile;
final ZipEntry entry;
final InputStream zipStream;
OutputStream fileStream;
tempFile = File.createTempFile(fileName.replace("/", ""), Long.toString(System.currentTimeMillis()));
tempFile.deleteOnExit();
entry = zipFile.getEntry(fileName);
if(entry == null)
{
throw new FileNotFoundException("cannot find file: " + fileName + " in archive: " + zipFile.getName());
}
zipStream = zipFile.getInputStream(entry);
fileStream = null;
try
{
final byte[] buf;
int i;
fileStream = new FileOutputStream(tempFile);
buf = new byte[1024];
i = 0;
while((i = zipStream.read(buf)) != -1)
{
fileStream.write(buf, 0, i);
}
}
finally
{
close(zipStream);
close(fileStream);
}
return (tempFile.toURI());
}
private static void close(final Closeable stream)
{
if(stream != null)
{
try
{
stream.close();
}
catch(final IOException ex)
{
ex.printStackTrace();
}
}
}
}