import java.io.IOException;import java.net.URL;import java.net.URLDecoder;import java.util.Enumeration;import java.util.jar.JarEntry;import java.util.jar.JarFile;import com.genuitec.eclipse.j2eedt.taglib.DirTaglibInfo;public class T {public static void main(String[] args) throws IOException {            URL url = DirTaglibInfo.class.getProtectionDomain().getCodeSource().getLocation();    String filePath = URLDecoder.decode(url.getPath(), "UTF-8");    if(filePath.endsWith(".jar"))    System.out.println(filePath);            //java.util.jar.JarFile file = new JarFile("E:\\frame\\jdbc\\mysql.jar");    java.util.jar.JarFile file = new JarFile(filePath);        Enumeration
    
      entrys = file.entries();        while(entrys.hasMoreElements()){            JarEntry jar = entrys.nextElement();            System.out.println(jar.getName());        }                        file.close();                              //filePath= filePath.substring(0, filePath.lastIndexOf("/") + 1);            }}