java读取jar里的文件

public static void main(String[] args) throws IOException {String jarPath = "omc-pm-server-eOMC910V100R001C00SPC100B020.jar";String res = readFileFromJar(jarPath,"pm.hbm.xml");System.out.println(res);  }/** * 从jar中获取指定名称的文本文件 *  * @param jarPath * @param name * @throws IOException */public static String readFileFromJar(String jarPath ,String name) throws IOException {JarFile jf = new JarFile(jarPath);Enumeration<JarEntry> jfs = jf.entries();StringBuffer sb  = new StringBuffer();while(jfs.hasMoreElements()){JarEntry jfn = jfs.nextElement();if(jfn.getName().endsWith(name)){InputStream is = jf.getInputStream(jfn);BufferedInputStream bis = new BufferedInputStream(is);byte[] buf = new byte[is.available()];while(bis.read(buf)!=-1){sb.append(new String(buf).trim());}bis.close();is.close();break;}}return sb.toString();}