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  • Java文件清单列表

     1 package FileDemo;
     2 
     3 import java.io.BufferedWriter;
     4 import java.io.File;
     5 import java.io.FileWriter;
     6 import java.io.FilenameFilter;
     7 import java.io.IOException;
     8 import java.util.ArrayList;
     9 import java.util.List;
    10 
    11 public class FilePropertyTest {
    12 
    13     /**
    14      * @param args
    15      * @throws IOException
    16      */
    17     public static void main(String[] args) throws IOException {
    18 
    19         File dir = new File("D:\Java");
    20         FilenameFilter filter = new FilenameFilter() {
    21 
    22             @Override
    23             public boolean accept(File dir, String name) {
    24 
    25                 return name.endsWith(".txt");
    26             }
    27         };
    28         List<File> list = new ArrayList<File>();
    29         getFiles(dir, filter, list);
    30         File destFile = new File("D:\destfile.txt");
    31         write2File(list, destFile);
    32     }
    33 
    34     public static void getFiles(File dir, FilenameFilter fileter,
    35             List<File> list) {
    36         File files[] = dir.listFiles();
    37         for (File file : files) {
    38             if (file.isDirectory()) {
    39                 getFiles(file, fileter, list);
    40             } else {
    41                 if (fileter.accept(dir, file.getName())) {
    42                     list.add(file);
    43                 }
    44             }
    45         }
    46     }
    47 
    48     public static void write2File(List<File> list, File destFile) throws IOException {
    49         BufferedWriter bufw = null;
    50         try {
    51             bufw = new BufferedWriter(new FileWriter(destFile));
    52             for (File file : list) {
    53                 bufw.write(file.getAbsolutePath());
    54                 bufw.newLine();
    55                 bufw.flush();
    56             }
    57         } catch (Exception e) {
    58             throw new RuntimeException("出现异常,写入失败");
    59         } finally {
    60             if(bufw!=null){
    61                 try {
    62                     bufw.close();
    63                     
    64                 } catch (Exception e2) {
    65 
    66                     throw new RuntimeException("关闭失败");
    67                 }
    68             }
    69         }
    70     }
    71 
    72 }
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  • 原文地址:https://www.cnblogs.com/ysw-go/p/5303456.html
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