import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.Enumeration;
import java.util.List;

 /**
     * 解壓zip,
     * 
     * @param zipFile　裡面可以有多個psd檔案，支援多級目錄
     * @param targetPath　儲存目錄
     * @throws Exception 
     */
    public static void unzipPSD(String zipPath, String targetPath) throws Exception {

            ZipFile zipFile = new ZipFile(zipPath);
            Enumeration emu = zipFile.getEntries();
 
　　　　　　//Enumeration emu = zipFile.entries();
            int i = 0;
            while (emu.hasMoreElements()) {
                ZipEntry entry = (ZipEntry) emu.nextElement();

                String fileName=entry.getName().toLowerCase();
                if(!fileName.startsWith("__macosx/")&&fileName.endsWith("psd"))
                {
                    //如果檔名沒有以__macosx/開頭，且以psd結尾，就是psd檔案，解壓,在mac下壓縮的檔案，會自動加上__macosx目錄，但其實是沒用的
                    BufferedInputStream bis = new BufferedInputStream(
                            zipFile.getInputStream(entry));
                    File file = new File(targetPath + System.currentTimeMillis()+".psd");
                    //一次讀40K
                    int BUFFER=40960;
                    FileOutputStream fos = new FileOutputStream(file);
                    BufferedOutputStream bos = new BufferedOutputStream(fos, BUFFER);

                    int count;
                    byte data[] = new byte[BUFFER];
                    while ((count = bis.read(data, 0, BUFFER)) != -1) {
                        bos.write(data, 0, count);
                    }
                    bos.flush();
                    bos.close();
                    bis.close();
                }
            }
            zipFile.close();

    }