如题：
/** * 将多级目录H:\\aa 目录下，.java 复制到 h:\\cc下 * @author ZYxiao * */ public class CopyFileFolder { public static void main(String[] args) throws IOException { File inputFile = new File("h:\\aa"); File outputFileFolder = new File("h:\\cc"); if(!outputFileFolder.exists()){ outputFileFolder.mkdir(); } copyFolder(inputFile,outputFileFolder); } /** * 判断文件文件夹 * @param inputFile * @param outputFileFolder * @throws IOException */ private static void copyFolder(File inputFile, File outputFileFolder) throws IOException { if(inputFile.isDirectory()){ File fileFolder = new File(outputFileFolder,inputFile.getName());//要在目标文件夹下创建和源文件夹的子文件夹一样的文件夹 fileFolder.mkdir(); File[] files=inputFile.listFiles(); for (File file : files) { copyFolder(file, fileFolder); //将子目录复制到新生成的文件夹下 } }else{ File file = new File(outputFileFolder,inputFile.getName()); copyFile(inputFile,file); } } /** * 复制文件 * @param inputFile * @param outputFile * @throws IOException */ private static void copyFile(File inputFile, File outputFile) throws IOException { // TODO Auto-generated method stub BufferedInputStream bis=new BufferedInputStream(new FileInputStream(inputFile)); BufferedOutputStream bos=new BufferedOutputStream(new FileOutputStream(outputFile)); byte[] b=new byte[1024]; int len=0; while((len = bis.read(b))!= -1){ bos.write(b, 0, len); } bis.close(); bos.close(); } }