1 public class Test {
2
3 /**
4 * @param args
5 */
6 public static void main(String[] args) {
7 // TODO Auto-generated method stub
8 File dir = new File("E:\\Test\\JAVA");
9 FilenameFilter filter = new FilenameFilter() {
10
11 @Override
12 public boolean accept(File dir, String name) {
13 // TODO Auto-generated method stub
14 return name.endsWith(".java");
15 }
16 };
17 List<File> list = new ArrayList<File>();
18 getFiles(dir, filter, list);
19 File destFile = new File(dir, "javalist.txt");
20 writeToFile(list, destFile);
21
22 }
23 /**
24 * 对指定目录中的内容i进行深度遍历，并按照指定过滤器进行过滤
25 * 将过滤器的内容存储到指定容器List中
26 * @param dir
27 * @param filter
28 * @param list
29 */
30 public static void getFiles(File dir, FilenameFilter filter, List<File> list) {
31 File[] files = dir.listFiles();
32 for (File file : files) {
33 if (file.isDirectory()) {
34 // 递归查找文件目录
35 getFiles(file, filter, list);
36 } else {
37 // 对遍历到得文件进行过滤器的过滤，将符合条件File对象存储到List集合中
38 if (filter.accept(dir, file.getName())) {
39 list.add(file);
40 }
41 }
42 }
43 }
44 //将List集合存入到文件中
45 public static void writeToFile(List<File> list, File destFile) {
46 BufferedWriter bufx = null;
47 try {
48 bufx = new BufferedWriter(new FileWriter(destFile));
49 for (File file : list) {
50 bufx.write(file.getAbsolutePath());
51 bufx.newLine();
52 bufx.flush();
53 }
54 } catch (IOException e) {
55 // TODO Auto-generated catch block
56 throw new RuntimeException("写入失败");
57 } finally {
58 if (bufx != null) {
59 try {
60 bufx.close();
61 } catch (IOException e) {
62 // TODO Auto-generated catch block
63 throw new RuntimeException("关闭失败");
64 }
65 }
66 }
67 }
68
69 }
