Android_Zip解压缩工具

public class ZipUtil {
	public ZipUtil(){

	}

	 /**
     * DeCompress the ZIP to the path
     * @param zipFileString  name of ZIP
     * @param outPathString   path to be unZIP
     * @throws Exception
     */
    public static void UnZipFolder(String zipFileString, String outPathString) throws Exception {
        ZipInputStream inZip = new ZipInputStream(new FileInputStream(zipFileString));
        ZipEntry zipEntry;
        String szName = "";
        System.out.println("start");
        while ((zipEntry = inZip.getNextEntry()) != null) {  

            szName = zipEntry.getName();
            System.out.println(szName);
            if (zipEntry.isDirectory()) {
                // get the folder name of the widget
                szName = szName.substring(0, szName.length() - 1);
                File folder = new File(outPathString + File.separator + szName);
                folder.mkdirs();
            } else {  

                File file = new File(outPathString + File.separator + szName);
                file.createNewFile();
                // get the output stream of the file
                FileOutputStream out = new FileOutputStream(file);
                int len;
                byte[] buffer = new byte[1024];
                // read (len) bytes into buffer
                while ((len = inZip.read(buffer)) != -1) {
                    // write (len) byte from buffer at the position 0
                    out.write(buffer, 0, len);
                    out.flush();
                }
                out.close();
            }
        }
        System.out.println("ssssss");
        inZip.close();
    }

    /**
     * Compress file and folder
     * @param srcFileString   file or folder to be Compress
     * @param zipFileString   the path name of result ZIP
     * @throws Exception
     */
    public static void ZipFolder(String srcFileString, String zipFileString)throws Exception {
        //create ZIP
        ZipOutputStream outZip = new ZipOutputStream(new FileOutputStream(zipFileString));
        //create the file
        File file = new File(srcFileString);
        //compress
        ZipFiles(file.getParent()+File.separator, file.getName(), outZip);
        //finish and close
        outZip.finish();
        outZip.close();
    }

    /**
     * compress files
     * @param folderString
     * @param fileString
     * @param zipOutputSteam
     * @throws Exception
     */
    private static void ZipFiles(String folderString, String fileString, ZipOutputStream zipOutputSteam)throws Exception{
        if(zipOutputSteam == null)
        return;
        File file = new File(folderString+fileString);
        if (file.isFile()) {
            ZipEntry zipEntry =  new ZipEntry(fileString);
            FileInputStream 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 {
            //folder
            String fileList[] = file.list();
            //no child file and compress
            if (fileList.length <= 0) {
                ZipEntry zipEntry =  new ZipEntry(fileString+File.separator);
                zipOutputSteam.putNextEntry(zipEntry);
                zipOutputSteam.closeEntry();
            }
            //child files and recursion
            for (int i = 0; i < fileList.length; i++) {
                ZipFiles(folderString, fileString+java.io.File.separator+fileList[i], zipOutputSteam);
            }//end of for
        }
    }

    /**
     * return the InputStream of file in the ZIP
     * @param zipFileString  name of ZIP
     * @param fileString     name of file in the ZIP
     * @return InputStream
     * @throws Exception
     */
    public static InputStream UpZip(String zipFileString, String fileString)throws Exception {
        ZipFile zipFile = new ZipFile(zipFileString);
        ZipEntry zipEntry = zipFile.getEntry(fileString);
        return zipFile.getInputStream(zipEntry);
    }  

	/**
     * return files list(file and folder) in the ZIP
     * @param zipFileString     ZIP name
     * @param bContainFolder    contain folder or not
     * @param bContainFile      contain file or not
     * @return
     * @throws Exception
     */
    public static List<File> GetFileList(String zipFileString, boolean bContainFolder, boolean bContainFile)throws Exception {
        List<File> fileList = new ArrayList<File>();
        ZipInputStream inZip = new ZipInputStream(new FileInputStream(zipFileString));
        ZipEntry zipEntry;
        String szName = "";
        while ((zipEntry = inZip.getNextEntry()) != null) {
            szName = zipEntry.getName();
            if (zipEntry.isDirectory()) {
                // get the folder name of the widget
                szName = szName.substring(0, szName.length() - 1);
                File folder = new File(szName);
                if (bContainFolder) {
                    fileList.add(folder);
                }  

            } else {
                File file = new File(szName);
                if (bContainFile) {
                    fileList.add(file);
                }
            }
        }
        inZip.close();
        return fileList;
    }
}