前言
本文主要实现的功能是删除某个目录及目录下的所有子目录和文件,涉及到的知识点: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:
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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); } } } |
总结
以上就是这篇文章的全部内容了,希望本文的内容对大家的学习或者工作能带来一定的帮助,如果有疑问大家可以留言交流。
原文链接:http://www.cnblogs.com/eczhou/archive/2012/01/16/2323431.html