- public static long getFileSize(File f) throws Exception {
- long size = 0;
- File flist[] = f.listFiles();
- for (int i = 0; i < flist.length; i++) {
- if (flist[i].isDirectory()) {
- size = size + getFileSize(flist[i]);
- } else {
- size = size + flist[i].length();
- }
- }
- return size;
- }
- public static String FormetFileSize(long fileS) {
- DecimalFormat df = new DecimalFormat("#.00");
- String fileSizeString = "";
- if (fileS == 0) {
- fileSizeString = "0KB";
- } else if (fileS < 1024) {
- fileSizeString = df.format((double) fileS) + "B";
- } else if (fileS < 1048576) {
- fileSizeString = df.format((double) fileS / 1024) + "KB";
- } else if (fileS < 1073741824) {
- fileSizeString = df.format((double) fileS / 1048576) + "MB";
- } else {
- fileSizeString = df.format((double) fileS / 1073741824) + "G";
- }
- return fileSizeString;
- }
- public static void deleteFolderFile(String filePath, boolean deleteThisPath)
- throws IOException {
- if (!TextUtils.isEmpty(filePath)) {
- File file = new File(filePath);
- if (file.isDirectory()) {// 处理目录
- File files[] = file.listFiles();
- for (int i = 0; i < files.length; i++) {
- deleteFolderFile(files[i].getAbsolutePath(), true);
- }
- }
- if (deleteThisPath) {
- // 如果是文件,删除
- if (!file.isDirectory()) {
- file.delete();
- } else {
- // 目录下没有文件或者目录,删除
- if (file.listFiles().length == 0) {
- file.delete();
- }
- }
- }
- }
- }
- /**
- * 获取文件名
- *
- * @param path
- * @return
- */
- public static String getFileName(String path) {
- int start = path.lastIndexOf("/") + 1;
- return path.substring(start);
- }
- /**
- * 获取文件名
- *
- * @param file
- * @return
- */
- public static String getFileName(File file) {
- String filePath = file.getAbsolutePath();
- return getFileName(filePath);
- }
来源: http://www.phpxs.com/code/1001675/