1,验证传入路径是否为正确的路径名(Windows系统,其他系统未使用)
Java代码
// 验证字符串是否为正确路径名的正则表达式 private static String matches = "[A-Za-z]:\\\\[^:?\"><*]*"; // 通过 sPath.matches(matches) 方法的返回值判断是否正确 // sPath 为路径字符串
2,通用的文件夹或文件删除方法,直接调用此方法,即可实现删除文件夹或文件,包括文件夹下的所有文件
Java代码
/** * 根据路径删除指定的目录或文件,无论存在与否 *@param sPath 要删除的目录或文件 *@return 删除成功返回 true,否则返回 false。 */ public boolean DeleteFolder(String sPath) { flag = false; file = new File(sPath); // 判断目录或文件是否存在 if (!file.exists()) { // 不存在返回 false return flag; } else { // 判断是否为文件 if (file.isFile()) { // 为文件时调用删除文件方法 return deleteFile(sPath); } else { // 为目录时调用删除目录方法 return deleteDirectory(sPath); } } }
3,实现删除文件的方法,
Java代码
/** * 删除单个文件 * @param sPath 被删除文件的文件名 * @return 单个文件删除成功返回true,否则返回false */ public boolean deleteFile(String sPath) { flag = false; file = new File(sPath); // 路径为文件且不为空则进行删除 if (file.isFile() && file.exists()) { file.delete(); flag = true; } return flag; }4,实现删除文件夹的方法,
Java代码
/** * 删除目录(文件夹)以及目录下的文件 * @param sPath 被删除目录的文件路径 * @return 目录删除成功返回true,否则返回false */ public boolean deleteDirectory(String sPath) { //如果sPath不以文件分隔符结尾,自动添加文件分隔符 if (!sPath.endsWith(File.separator)) { sPath = sPath + File.separator; } File dirFile = new File(sPath); //如果dir对应的文件不存在,或者不是一个目录,则退出 if (!dirFile.exists() || !dirFile.isDirectory()) { return false; } flag = true; //删除文件夹下的所有文件(包括子目录) File[] files = dirFile.listFiles(); for (int i = 0; i < files.length; i++) { //删除子文件 if (files[i].isFile()) { flag = deleteFile(files[i].getAbsolutePath()); if (!flag) break; } //删除子目录 else { flag = deleteDirectory(files[i].getAbsolutePath()); if (!flag) break; } } if (!flag) return false; //删除当前目录 if (dirFile.delete()) { return true; } else { return false; } }
5,main() 方法
Java代码
public static void main(String[] args) { HandleFileClass hfc = new HandleFileClass(); String path = "D:\\Abc\\123\\Ab1"; boolean result = hfc.CreateFolder(path); System.out.println(result); path = "D:\\Abc\\124"; result = hfc.DeleteFolder(path); System.out.println(result); }
main() 方法只是做了一个简单的测试,建立文件夹和文件都是本地建立,情况考虑的应该很全面了,包括文件夹包含文件夹、文件。文件的不同情况…………
实现没有问题,可以正确删除文件夹和文件。
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