Android开发中压缩文件和文件夹

Android开发中，我们经常会遇到上传文件，用到压缩文件、文件夹的功能，今天我们主要讲解这个功能，具体的实现如下：

/**
 * 压缩文件和文件夹
 *
 * @param srcFileString 要压缩的文件或文件夹
 * @param zipFileString 压缩完成的Zip路径
 * @throws Exception
 */
public static void ZipFolder(String srcFileString, String zipFileString,String zipName)  {
    //创建ZIP
    ZipOutputStream outZip = null;
    try {
        //创建文件
        File file = new File(srcFileString);
        File outPath = new File(zipFileString);
        if (!outPath.exists()){
            outPath.mkdirs();
        }
        outZip = new ZipOutputStream(new FileOutputStream(new File(outPath, zipName)));
        //压缩
        ZipFiles(file.getParent() + File.separator, file.getName(), outZip);
        isSuccess = true;
    } catch (Exception e) {
        isSuccess = false;
        e.printStackTrace();
    } finally {
        //完成和关闭
        if (outZip != null) {
            try {
                outZip.finish();
                outZip.close();
            }catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

下面这段代码是压缩文件：

/**
 * 压缩文件
 *
 * @param folderString
 * @param fileString
 * @param zipOutputSteam
 * @throws Exception
 */
private static void ZipFiles(String folderString, String fileString, ZipOutputStream zipOutputSteam)
        throws Exception {
    if (zipOutputSteam == null)
        return;
    FileInputStream inputStream = null;
    try {
        File file = new File(folderString + fileString);
        if (file.isFile()) {
            ZipEntry zipEntry = new ZipEntry(fileString);
            inputStream = new FileInputStream(file);
            zipOutputSteam.putNextEntry(zipEntry);
            int len;
            byte[] buffer = new byte[4096];
            while ((len = inputStream.read(buffer)) != -1) {
                zipOutputSteam.write(buffer, 0, len);
            }
            zipOutputSteam.closeEntry();
        } else {
            //文件夹
            String fileList[] = file.list();
            //没有子文件和压缩
            if (fileList.length <= 0) {
                ZipEntry zipEntry = new ZipEntry(fileString + File.separator);
                zipOutputSteam.putNextEntry(zipEntry);
                zipOutputSteam.closeEntry();
            }
            //子文件和递归
            for (int i = 0; i < fileList.length; i++) {
                ZipFiles(folderString + fileString + "/", fileList[i], zipOutputSteam);
            }
        }
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (inputStream != null) {
            try {
                inputStream.close();
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
    }
}