Go语言视频零基础入门到精通

javalearner

copy目录下的所有的文件和子目录到另一个目录

1. import java.io.*;
   
2. public class CopyDirectory{
   
3. public static void main(String[] args) throws IOException{
   
4.     CopyDirectory cd = new CopyDirectory();
   
5.     BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
   
6.     System.out.println("Enter the source directory or file name : ");
   
7.     String source = in.readLine();
   
8.     File src = new File(source);
   
9.     System.out.println("Enter the destination directory or file name : ");
   
10.     String destination = in.readLine();
    
11.     File dst = new File(destination);
    
12.     cd.copyDirectory(src, dst);
    
13.   }
    
14.   public void copyDirectory(File srcPath, File dstPath)  throws IOException{
    
15.    if (srcPath.isDirectory()){
    
16.       if (!dstPath.exists()){
    
17.         dstPath.mkdir();
    
18.       }
    
19.       String files[] = srcPath.list();
    
20.       for(int i = 0; i < files.length; i++){
    
21.         copyDirectory(new File(srcPath, files[i]),  new File(dstPath, files[i]));
    
22.       }
    
23.     } else{
    
24.       if(!srcPath.exists()){
    
25.         System.out.println("File or directory does not exist.");
    
26.         System.exit(0);
    
27.       }else{
    
28.        InputStream in = new FileInputStream(srcPath);
    
29.        OutputStream out = new FileOutputStream(dstPath);// Transfer bytes from in to out
    
30.             byte[] buf = new byte[1024];
    
31.             int len;
    
32.             while ((len = in.read(buf)) > 0) {
    
33.              out.write(buf, 0, len);
    
34.             }
    
35.        in.close();
    
36.        out.close();
    
37.       }
    
38.    }
    
39. System.out.println(srcPath.toString()+"  copied.");
    
40. }
    
41. }
    
43. 运行:
44. C:        est>java   CopyDirectory
45. Enter the source directory or file name :
46. c:work
47. Enter the destination directory or file name :
48. c:        estwork1
50. c:work123Node.class  copied.
51. c:work123  copied.
52. c:workBMTest.class  copied.
53. c:workBMTest.java  copied.
54. c:workKMP.class  copied.
55. c:workKMP.java  copied.
56. c:workKMP_Next.class  copied.
57. c:workKMP_Next.java  copied.
58. c:workMain.class  copied.
59. c:workMain.java  copied.
60. c:workPM_BM.class  copied.
61. c:workPM_BM.java  copied.
62. c:workPM_BruteForce.class  copied.
63. c:workPM_BruteForce.java  copied.
64. c:workPM_KMP.class  copied.
65. c:work片段.shs  copied.
66. c:work  copied.

复制代码

  
  
   
   

     
   

     
   
  

复制代码

源码下载：http://file.javaxxz.com/2014/11/4/235837343.zip