全盘搜索案例

Posted 2022-04-25 aqiu-jiang

 1 package com.qianfeng.Demo;
 2 
 3 import java.io.File;
 4 import java.util.Scanner;
 5 
 6 @SuppressWarnings("all")
 7 public class Work1 
 8     public static void main(String[] args) throws Exception 
 9         Scanner sc = new Scanner(System.in);
10         System.out.println("输入你要搜索的文件：");
11         String name = sc.next();
12         find(name);
13 //        find(new File("E:/"),name);
15     
16     public static void find(String name) 
17         File[] roots = File.listRoots();
18         for (File root : roots) 
19             find(root,name);
20         
21     
22     public static void find(File root,String f) 
23         File[] files = root.listFiles();
24         if(files==null) 
25             return;
26         
27         for (File fs : files) 
28             if(fs.isDirectory()) 
29                 find(fs,f);
30                 continue;
31             
　　　　　　　　　//字符串搜索或者正则表达式搜索
32             if(fs.getName().toLowerCase().indexOf(f.toLowerCase()) > -1 
33                     || fs.getName().matches(f)) 
34                 System.out.println("绝对路径为："+fs.getAbsolutePath());
35             
36         
37     
38