复制指定源位置的多级文件夹下所有文件到指定目标位置

 1 package cn.hafiz.www;
 2 
 3 import java.io.BufferedInputStream;
 4 import java.io.BufferedOutputStream;
 5 import java.io.File;
 6 import java.io.FileInputStream;
 7 import java.io.FileOutputStream;
 8 import java.io.IOException;
 9 
10 public class CopyFolder {
11     public static void main(String[] args)  throws IOException {
12         File srcFile = new File("G:\\hafiz");
13         File desFile = new File("E:\\");
14         copyFolder(srcFile, desFile);
15     }
16 
17     private static void copyFolder(File srcFile, File desFile) throws IOException  {
18         if(srcFile.isDirectory()) {
19             //是文件夹,首先在目标位置创建同名文件夹，然后遍历文件夹下的文件，进行递归调用copyFolder函数
20             File newFolder = new File(desFile, srcFile.getName());
21             newFolder.mkdir();
22             File[] fileArray = srcFile.listFiles();
23             for(File file : fileArray) {
24                 copyFolder(file, newFolder);
25             }
26         }else{
27             //是文件，直接copy到目标文件夹
28             File newFile = new File(desFile, srcFile.getName());
29             copyFile(srcFile, newFile);
30         }
31     }
32 
33     private static void copyFile(File srcFile, File newFile) throws IOException {
34         //复制文件到指定位置
35         BufferedInputStream bis = new BufferedInputStream(new FileInputStream(srcFile));
36         BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(newFile));
37         byte[] b = new byte[1024];
38         Integer len = 0;
39         while((len = bis.read(b)) != -1) {
40             bos.write(b, 0, len);
41         }
42         bis.close();
43         bos.close();
44     }
45 }