删除某个目录及目录下的所有子目录和文件

2019独角兽企业重金招聘Python工程师标准>>>

知识点：File.delete()用于删除“某个文件或者空目录”！所以要删除某个目录及其中的所有文件和子目录，要进行递归删除，具体代码示例如下：

import java.io.File; public class DeleteDirectory { /** * 删除空目录
     * @param dir 将要删除的目录路径 */ private static void doDeleteEmptyDir(String dir) { boolean success = (new File(dir)).delete(); if (success) {
            System.out.println("Successfully deleted empty directory: " + dir);
        } else {
            System.out.println("Failed to delete empty directory: " + dir);
        }
    } /** * 递归删除目录下的所有文件及子目录下所有文件
     * @param dir 将要删除的文件目录
     * @return boolean Returns "true" if all deletions were successful.
     *                 If a deletion fails, the method stops attempting to
     *                 delete and returns "false". */ private static boolean deleteDir(File dir) { if (dir.isDirectory()) {
            String[] children = dir.list();
　　　　　　　//递归删除目录中的子目录下  for (int i=0; i<children.length; i++) { boolean success = deleteDir(new File(dir, children[i])); if (!success) { return false;
                }
            }
        } // 目录此时为空，可以删除  return dir.delete();
    } /** *测试 */ public static void main(String[] args) {
        doDeleteEmptyDir("new_dir1");
        String newDir2 = "new_dir2"; boolean success = deleteDir(new File(newDir2)); if (success) {
            System.out.println("Successfully deleted populated directory: " + newDir2);
        } else {
            System.out.println("Failed to delete populated directory: " + newDir2);
        }     
    }
}

转载于:https://my.oschina.net/tiancai/blog/91038