java复制文件夹中的所有文件和文件夹到另一个文件夹中
1.复制文件夹
public static void copyDir(String oldPath, String newPath) throws IOException { File file = new File(oldPath);
//文件名称列表 String[] filePath = file.list(); if (!(new File(newPath)).exists()) { (new File(newPath)).mkdir(); } for (int i = 0; i < filePath.length; i++) { if ((new File(oldPath + file.separator + filePath[i])).isDirectory()) { copyDir(oldPath + file.separator + filePath[i], newpath + file.separator + filePath[i]); } if (new File(oldPath + file.separator + filePath[i]).isFile()) { copyFile(oldPath + file.separator + filePath[i], newpath + file.separator + filePath[i]); } } }
2. 复制文件的方法
public static void copyFile(String oldPath, String newPath) throws IOException { File oldFile = new File(oldPath); File file = new File(newPath); FileInputStream in = new FileInputStream(oldFile); FileOutputStream out = new FileOutputStream(file);; byte[] buffer=new byte[2097152]; while((in.read(buffer)) != -1){ out.write(buffer); } }
3. 测试
public static void main(String[] args) throws IOException { Scanner sc = new Scanner(System.in); System.out.println("请输入源目录:"); String sourcePath = sc.nextLine(); System.out.println("请输入新目录:"); String path = sc.nextLine(); //String sourcePath = "D://aa"; //String path = "D://bb"; copyDir(sourcePath, path); }