文件压缩与解压缩

 1 public class Test {
 2 
 3     public static void main(String[] args) throws IOException {
 4         //GZIP压缩与解压缩
 5         
 6 /*        FileInputStream fis = new FileInputStream("E:\\1.txt");
 7         GZIPOutputStream gos = new GZIPOutputStream(new FileOutputStream("E:\\1.gz"));
 8         
 9         System.out.println("1.txt压缩成1.gz");
10         int len;
11         while ((len = fis.read()) != -1) {
12             gos.write(len);
13         }
14         fis.close();
15         gos.close();*/
16         
17         
18         
19         
20 /*        GZIPInputStream gis = new GZIPInputStream(new FileInputStream("E:\\1.gz"));
21         FileOutputStream fos = new FileOutputStream("E:\\1.txt");
22         
23         System.out.println("1.gz解压缩成1.txt");
24         int len;
25         while ((len = gis.read()) !=-1) {
26             fos.write(len);
27         }
28         gis.close();
29         fos.close();*/
30         
31         
32         
33         
34         
35         //ZIP压缩与解压缩
36         
37 /*        System.out.println("ZIP压缩");
38         ZipOutputStream zos = new ZipOutputStream(new FileOutputStream("E:\\1.zip"));
39         String a[] = {"E:/1.txt","E:/2.txt"};
40         int len;
41         for (int i = 0; i < a.length; i++) {
42             System.out.println("压缩文件"+a[i]);
43             FileInputStream fis = new FileInputStream(a[i]);
44             zos.putNextEntry(new ZipEntry(a[i]));//写入一个ZipEntry入口
45             
46             while ((len = fis.read()) != -1) {
47                 zos.write(len);
48             }
49             fis.close();
50         }
51         zos.close();
52         System.out.println("压缩完毕！");*/
53         
54         
55         System.out.println("ZIP解压缩");
56         ZipInputStream zis = new ZipInputStream(new FileInputStream("E:/1.zip"));
57         ZipEntry entry;
58         int c;
59         while ((entry = zis.getNextEntry()) != null) {
60             System.out.println("文件："+entry.getName());
61             FileOutputStream fos = new FileOutputStream(entry.getName());
62             
63             while ((c = zis.read()) != -1) {
64                 fos.write(c);
65             }
66             fos.close();
67         }
68         zis.close();
69         System.out.println("解压缩完毕！");
70     }
71 
72 }
标个链接：https://www.cnblogs.com/stevenhqq/archive/2011/05/19/2050771.html