<pre name="code" class="html">import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Enumeration;
import java.util.List;


import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipFile;
import org.apache.tools.zip.ZipOutputStream;


import com.xbrc.common.misc.OperationException;
import com.xbrc.common.misc.OperationException.ExceptionType;
 

/**
     * 打包指定檔案列表為zip
     * 
     * @param files
     * @param strZipFileFullPath
     * @throws Exception
     */
    public static void zipFiles(String strZipFileFullPath, List<File> files) {
        try {
            File file = new File(strZipFileFullPath);
            if (!file.exists()) {
                file.createNewFile();
            }
            FileOutputStream fous = new FileOutputStream(file);
            ZipOutputStream zipOut = new ZipOutputStream(fous);
            zipFile(files, zipOut);
            zipOut.close();
            fous.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
 

/**
     * 解壓
     * 
     * @param directory
     *            解壓完儲存的路徑
     * @param zip
     *            壓縮包檔案
     */

public static void unZipFile(String directory, File zip) {
        try {
            int count = -1;
            int buffer = 2048;

            File file = null;
            InputStream is = null;
            FileOutputStream fos = null;
            BufferedOutputStream bos = null;

            ZipFile zipFile = new ZipFile(zip, "GBK");
            Enumeration en = zipFile.getEntries();
            createFolder(directory);
            while (en.hasMoreElements()) {
                byte buf[] = new byte[buffer];
                ZipEntry entry = (ZipEntry) en.nextElement();
                String fileName = entry.getName();
                String filePath = directory +"/"+ fileName;
                if(entry.isDirectory()){
                    createFolder(filePath);
                }else{
                    file = new File(filePath);
                    file.createNewFile();
                    
                    is = zipFile.getInputStream(entry);
                    fos = new FileOutputStream(file);
                    bos = new BufferedOutputStream(fos, buffer);
                    while ((count = is.read(buf)) > -1) {
                        bos.write(buf, 0, count);
                    }
                    bos.close();
                    fos.close();
                    is.close();
                }
            }
            zipFile.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
 

private static void createFolder(String path) {
        try {
            File uploadFilePath = new File(path);
            if (uploadFilePath.exists() == false) {
                uploadFilePath.mkdirs();
            }
        } catch (Exception ex) {
            throw new OperationException(ExceptionType.ERROR, "建立資料夾異常");
        }
    }