文件搜索

自己写的文件搜索，如有疑义请留言：

private File[] forder;
private File[] files;
private List<File> listforder = new ArrayList<File>();//存放文件夹
private String root = Properties.ROOT;//根目录
private File f;
public List<String> SearchAudio() {
		List<String> list = new ArrayList<String>();
		f = new File(root);
		forder = f.listFiles(new DirFilter());
		for (int i = 0; i < forder.length; i++) {
			listforder.add(forder[i]);
		}
		files = f.listFiles(new AudioFilter());
		for (int i = 0; i < files.length; i++) {
			list.add(files[i].getAbsolutePath());
		}
		while (listforder.size() > 0) {
			for (int j = 0; j < listforder.size(); j++) {
				f = listforder.get(j);
				forder = f.listFiles(new DirFilter());
				files = f.listFiles(new AudioFilter());
				for (int i = 0; i < forder.length; i++) {
					listforder.add(forder[i]);
				}
				for (int i = 0; i < files.length; i++) {
					list.add(files[i].getAbsolutePath());
				}
				listforder.remove(j);
			}
		}
		return list;
	}

 

/**
     * 查找以mp3、wma、ogg、wav结尾的音乐文件
     * 音乐文件名过滤
     * */
	class AudioFilter implements FilenameFilter {
		public boolean isMp3(String file) {
			if (file.toLowerCase().endsWith(".mp3")) {
				return true;
			} else {
				return false;
			}
		}

		public boolean isWma(String file) {
			if (file.toLowerCase().endsWith(".wma")) {
				return true;
			} else {
				return false;
			}
		}

		public boolean isOgg(String file) {
			if (file.toLowerCase().endsWith(".ogg")) {
				return true;
			} else {
				return false;
			}
		}

		public boolean isWav(String file) {
			if (file.toLowerCase().endsWith(".wav")) {
				return true;
			} else {
				return false;
			}
		}

		public boolean accept(File dir, String filename) {

			return (isMp3(filename) || isWma(filename) || isOgg(filename) || isWav(filename));
		}
	}
    /**
     * 查找目录
     * 
     * */
	class DirFilter implements FileFilter {
		public boolean accept(File pathname) {
			return isDir(pathname);
		}

		public boolean isDir(File files) {
			if (files.isDirectory()) {
				return true;
			} else {
				return false;
			}
		}
	}