Java的文件压缩-Zip格式

1/**
2  * 文件压缩
3  */
4public class ZipFile_Compress {
5    public static void main(String[] args) throws IOException {
6        File file = new File("E:\\aaa\\web01");
7
8        String savePath = "E:\\aaa" + File.separator + file.getName() + ".zip";
9        File saveFile = new File(savePath);
10        if (!saveFile.getParentFile().exists()) {
11            saveFile.getParentFile().mkdirs();
12        }
13        
14        ZipOutputStream outputStream = new ZipOutputStream(new FileOutputStream(savePath, true));
15
16        toMakeZipFilePre(file, saveFile.getParentFile().getPath(), outputStream);
17
18        outputStream.close();
19    }
20
21    /**
22     * 文件压缩前的准备处理
23     * @param file
24     * @param savePath
25     * @param outputStream
26     * @throws IOException
27     */
28    public static void toMakeZipFilePre(File file, String savePath, ZipOutputStream outputStream) throws IOException {
29        if (file.isDirectory()) {
30            File[] files = file.listFiles();
31            if (files != null) {
32                for (File f : files) {
33                    toMakeZipFilePre(f, savePath, outputStream);
34                }
35            }
36        } else {
37            /**
38             * 截取后面要用的文件条目
39             */
40            String realSavePath = file.getAbsolutePath().substring(savePath.length() + 1).replaceAll("\\\\", "/");
41            toMakeZipFile(file, realSavePath, outputStream);
42            System.out.println(realSavePath);
43        }
44    }
45
46    public static void toMakeZipFile(File file, String savePath, ZipOutputStream outputStream) throws IOException {
47        /**
48         * 将相对路径封装成条目
49         */
50        ZipEntry zipEntry = new ZipEntry(savePath);
51        /**
52         * 在输出流中编写一条新的条目
53         */
54        outputStream.putNextEntry(zipEntry);
55
56        InputStream inputStream = new BufferedInputStream(new FileInputStream(file));
57
58        int len = 0;
59        byte[] bytes = new byte[1024];
60        while ((len = inputStream.read(bytes)) != -1) {
61            outputStream.write(bytes, 0, len);
62        }
63        outputStream.flush();
64        inputStream.close();
65    }
66
67}