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 1 package cn.it.demo;
 2 
 3 import java.io.File;
 4 import java.io.FileInputStream;
 5 import java.io.FileOutputStream;
 6 import java.io.IOException;
 7 
 8 public class Demo04 {
 9     public static void main(String[] args) {
10         File file1=new File("e:\\other");
11         File file2=new File("e:\\ther");
12         copy(file1,file2);
13     }
14     private static void copy(File file1,File file2) {
15         FileInputStream fis=null;
16         FileOutputStream fos=null;
17         try {
18             if(file1.isDirectory()) {
19                 file2.mkdir();
20                 String[] filepaths = file1.list();
21                 for(String f:filepaths) {
22                     //获取源文件路径和新文件路径
23                     copy(new File(file1.getAbsolutePath()+file1.separator+f),new File(file2.getAbsolutePath()+file2.separator+f));
24                 }
25             }else if(file1.isFile()) {
26                 fis=new FileInputStream(file1);
27                 fos=new FileOutputStream(file2);
28                 int len=0;
29                 byte[] buf=new byte[1024];
30                 while((len=fis.read(buf))!=-1) {
31                     fos.write(buf, 0, len);
32                 }
33             }
34         } catch (IOException e) {
35             e.printStackTrace();
36         }finally {
37             try {
38                 if(fis!=null) {
39                     fis.close();
40                 }
41             } catch (IOException e) {
42                 e.printStackTrace();
43             }
44             try {
45                 if(fos!=null) {
46                     fos.close();
47                 }
48             } catch (IOException e) {
49                 e.printStackTrace();
50             }
51         }
52     }
53 }