文件夹复制

 public static void copyDirectory(File src, File dest) throws IOException {   File newFile = new File(dest, src.getName());   newFile.mkdir();   File[] file1 = src.listFiles();   for (File file : file1) {    if (file.isFile()) {     BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));     BufferedOutputStream bos = new BufferedOutputStream(       new FileOutputStream(new File(newFile,file.getName())));     int b;     while ((b = bis.read()) != -1) {      bos.write(b);     }     bis.close();     bos.close();    }else{     copyDirectory(file, newFile);    }   }  }