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标题: 学习io之打包解包（ZIP）Demo [打印本页]

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作者: 尹丽峰    时间: 2013-5-8 00:15
标题: 学习io之打包解包（ZIP）Demo

1. 
   
2. import java.io.File;
   
3. import java.io.FileInputStream;
   
4. import java.io.FileOutputStream;
   
5. import java.io.IOException;
   
6. import java.io.InputStream;
   
7. import java.io.OutputStream;
   
8. import java.util.zip.ZipEntry;
   
9. import java.util.zip.ZipInputStream;
   
10. import java.util.zip.ZipOutputStream;
    
11. /**
    
12. * 打包zip
    
13. * 打zip包和解zip包的简单程序
    
14. */
    
15. public class ZipTest {
    
16. public static void main(String[] args) throws Exception{
    
17. zip();
    
18. unzip();
    
19. }
    
20. //生成zip文件
    
21. public static void zip() throws IOException{
    
22. ZipOutputStream zip =
    
23. new ZipOutputStream(new FileOutputStream("d:/abc.zip"));
    
24. File f = new File("d:/aa/a.txt");
    
25. ZipEntry ze = new ZipEntry(f.getName());
    
26. ze.setTime(f.lastModified());
    
27. zip.putNextEntry(ze);
    
28. InputStream in = new FileInputStream(f);
    
29. byte[] b = new byte[1024];
    
30. while(in.read(b)!=-1){
    
31. zip.write(b);
    
32. }
    
33. zip.flush();
    
34. zip.close();
    
35. }
    
36. //解开zip文件
    
37. public static void unzip() throws IOException{
    
38. ZipInputStream zip =
    
39. new ZipInputStream(new FileInputStream("d:/abc.zip"));
    
40. ZipEntry ze = zip.getNextEntry();
    
41. OutputStream out = new FileOutputStream("d:/"+ze.getName());
    
42. byte[] b = new byte[1024];
    
43. while(zip.read(b)!=-1){
    
44. out.write(b);
    
45. }
    
46. out.close();
    
47. zip.close();
    
48. }
    
49. }

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很简单的小练习

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