java file zip and upzip_JAVA_编程开发_程序员俱乐部

class="java" name="code">
private void zip(File file) throws IOException {


        zipFile = new File(file.getParent(), file.getName()+".zip");
        FileOutputStream fOut = null;
        BufferedOutputStream bOut = null;
        ZipArchiveOutputStream tOut = null;

        try {
            fOut = new FileOutputStream(zipFile);
            bOut = new BufferedOutputStream(fOut);
            tOut = new ZipArchiveOutputStream(bOut);
            addFileToZip(tOut, file, "");
        } finally {
            if(tOut!=null){
                tOut.finish();
            }

            tOut.close();
            bOut.close();
            fOut.close();
        }

    }


    private void addFileToZip(ZipArchiveOutputStream zOut, File file, String base) throws IOException {

        String entryName = base + file.getName();
        ZipArchiveEntry zipEntry = new ZipArchiveEntry(file, entryName);

        zOut.putArchiveEntry(zipEntry);

        if (file.isFile()) {
            FileInputStream fInputStream = null;
            try {
                fInputStream = new FileInputStream(file);
                IOUtils.copy(fInputStream, zOut);
                zOut.closeArchiveEntry();
            } finally {
                IOUtils.closeQuietly(fInputStream);
            }

        } else {
            zOut.closeArchiveEntry();
            File[] children = file.listFiles();

            if (children != null) {
                for (File child : children) {
                    addFileToZip(zOut, child, entryName + "/");
                }
            }
        }
    }

private void unZipFile(File fSourceZip) throws ZipException, IOException {

        long fileSize=0;

        String zipPath = fSourceZip.getParentFile().getAbsolutePath();
        File temp = new File(zipPath);
        temp.mkdir();
        temp.setExecutable(true);
        temp.setReadable(true);
        temp.setWritable(true);

        ZipFile zipFile = new ZipFile(fSourceZip);
        Enumeration e = zipFile.entries();

        boolean createFolder = true;

        while (e.hasMoreElements()) {
            ZipEntry entry = (ZipEntry) e.nextElement();
            File destinationFilePath = new File(zipPath, entry.getName());
            destinationFilePath.setExecutable(true);
            destinationFilePath.setReadable(true);
            destinationFilePath.setWritable(true);
            if (createFolder) {
                destinationFilePath.getParentFile().mkdirs();
            }
            if (entry.isDirectory()) {
                continue;
            } else {
                createFolder = true;
                BufferedInputStream bis = new BufferedInputStream(
                        zipFile.getInputStream(entry));

                int b;
                byte buffer[] = new byte[1024];
                FileOutputStream fos = new FileOutputStream(
                        destinationFilePath);
                BufferedOutputStream bos = new BufferedOutputStream(fos,
                        1024);

                while ((b = bis.read(buffer, 0, 1024)) != -1) {
                    bos.write(buffer, 0, b);
                }
                bos.flush();
                bos.close();
                bis.close();
            }
            fileSize = fileSize + destinationFilePath.length();
        }

        zipFile.close();
        fSourceZip.delete();
    }