ZipUtil工具类

Posted 2020-10-07

说明：
1.平时做zip打包主要用到了java.util.zip下的ZipOutputStream、ZipEntry两个API
如需了解这两个API怎么用，请自行查阅文档。
2.以下方法已经经过测试，可直接copy使用，如有不足之处请指出。谢谢！

 

 

 1   /**
 2      * 压缩文件列表到某个zip包
 3      * @param zipFileName zip包文件名
 4      * @param paths 文件列表路径
 5      * @throws IOException
 6      */ 
 7     public static void compress(String zipFileName,String... paths) throws IOException {
 8         compress(new FileOutputStream(zipFileName),paths);
 9     }
10 
11 
12     /**
13      * 压缩文件列表到某个zip包
14      * @param stream 流
15      * @param paths 文件列表路径
16      * @throws IOException
17      */
18     public static void compress(OutputStream stream,String... paths) throws IOException {
19         ZipOutputStream zos = new ZipOutputStream(stream);
20         for (String path : paths){
21             if (StringUtils.equals(path,"")){
22                 continue;
23             }
24             File file = new File(path);
25             if (file.exists()){
26                 if (file.isDirectory()){
27                     zipDirectory(zos,file.getPath(),file.getName() + File.separator);
28                 } else {
29                     zipFile(zos,file.getPath(),"");
30                 }
31             }
32         }
33         zos.close();
34     }
35 
36 
37     /**
38      * 解析多文件夹
39      * @param zos zip流
40      * @param dirName 目录名称
41      * @param basePath
42      * @throws IOException
43      */
44     private static void zipDirectory(ZipOutputStream zos,String dirName,String basePath) throws IOException {
45         File dir = new File(dirName);
46         if (dir.exists()){
47             File files[] = dir.listFiles();
48             if (files.length > 0){
49                 for (File file : files){
50                     if (file.isDirectory()){
51                         zipDirectory(zos,file.getPath(),file.getName() + File.separator);
52                     } else {
53                         zipFile(zos,file.getName(),basePath);
54                     }
55                 }
56             } else {
57                 ZipEntry zipEntry = new ZipEntry(basePath);
58                 zos.putNextEntry(zipEntry);
59             }
60         }
61     }
62 
63 
64     private static void zipFile(ZipOutputStream zos,String fileName,String basePath) throws IOException {
65         File file = new File(fileName);
66         if (file.exists()){
67             FileInputStream fis = new FileInputStream(fileName);
68             ZipEntry ze = new ZipEntry(basePath + file.getName());
69             zos.putNextEntry(ze);
70             byte[] buffer = new byte[8192];
71             int count = 0;
72             while ((count = fis.read(buffer)) > 0){
73                 zos.write(buffer,0,count);
74             }
75             fis.close();
76         }
77     }