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public class ZipUtils {    private static final int BUFF_SIZE = 1024 * 1024; // 1M Byte    /**     * 压缩目录     *     * @param srcPath         被压缩的目录路径     * @param destZipFilePath 目标zip文件路径     * @param excludeTopDir   是否排除掉顶层目录     * @throws IOException     */    public static void zip(String srcPath, String destZipFilePath, Boolean excludeTopDir) throws IOException {        FileOutputStream fos = new FileOutputStream(destZipFilePath);        ZipOutputStream zipOut = new ZipOutputStream(fos);        File srcDirFile = new File(srcPath);        if (srcDirFile.isDirectory()) {            if (excludeTopDir) {                zipDirExcludeTopDir(zipOut, srcDirFile);            } else {                zipFile(srcDirFile, srcDirFile.getName(), zipOut);            }        } else {            zipFile(srcDirFile, srcDirFile.getName(), zipOut);        }        zipOut.close();        fos.close();    }    /**     * 压缩目录时，去掉最顶层的目录。     */    private static void zipDirExcludeTopDir(ZipOutputStream zipOut, File srcDir) throws IOException {        File[] subFiles = srcDir.listFiles();        for (int i = 0; i < subFiles.length; i++) {            File subFile = subFiles[i];            zipFile(subFile, subFile.getName(), zipOut);        }    }    private static void zipFile(File fileToZip, String fileName, ZipOutputStream zipOut) throws IOException {        if (fileToZip.isDirectory()) {            if (fileName.endsWith("/")) {                zipOut.putNextEntry(new ZipEntry(fileName));                zipOut.closeEntry();            } else {                zipOut.putNextEntry(new ZipEntry(fileName + "/"));                zipOut.closeEntry();            }            File[] children = fileToZip.listFiles();            for (File childFile : children) {                zipFile(childFile, fileName + "/" + childFile.getName(), zipOut);            }            return;        }        FileInputStream fis = new FileInputStream(fileToZip);        ZipEntry zipEntry = new ZipEntry(fileName);        zipOut.putNextEntry(zipEntry);        byte[] bytes = new byte[1024];        int length;        while ((length = fis.read(bytes)) >= 0) {            zipOut.write(bytes, 0, length);        }        fis.close();    }    /**     * 解压缩一个文件     *     * @param zipFile    压缩文件     * @param folderPath 解压缩的目标目录     * @throws IOException 当解压缩过程出错时抛出     */    public static void upZipFile(File zipFile, String folderPath) throws ZipException, IOException {        File desDir = new File(folderPath);        if (!desDir.exists()) {            desDir.mkdirs();        }        ZipFile zf = new ZipFile(zipFile);        for (Enumeration
    entries = zf.entries(); entries.hasMoreElements(); ) {            ZipEntry entry = ((ZipEntry) entries.nextElement());            if (entry.isDirectory()) {                continue;            }            InputStream in = zf.getInputStream(entry);            String str = folderPath + File.separator + entry.getName();            str = new String(str.getBytes(), "utf-8");            File desFile = new File(str);            if (!desFile.exists()) {                File fileParentDir = desFile.getParentFile();                if (!fileParentDir.exists()) {                    fileParentDir.mkdirs();                }                desFile.createNewFile();            }            OutputStream out = new FileOutputStream(desFile);            byte buffer[] = new byte[BUFF_SIZE];            int realLength;            while ((realLength = in.read(buffer)) > 0) {                out.write(buffer, 0, realLength);            }            in.close();            out.close();        }    }    /**     * 解压文件名包含传入文字的文件     *     * @param zipFile      压缩文件     * @param folderPath   目标文件夹     * @param nameContains 传入的文件匹配名     * @throws ZipException 压缩格式有误时抛出     * @throws IOException  IO错误时抛出     */    public static ArrayList
   
     upZipSelectedFile(File zipFile, String folderPath,                                                    String nameContains) throws ZipException, IOException {        ArrayList
    
      fileList = new ArrayList
     
      ();        File desDir = new File(folderPath);        if (!desDir.exists()) {            desDir.mkdir();        }        ZipFile zf = new ZipFile(zipFile);        for (Enumeration
       entries = zf.entries(); entries.hasMoreElements(); ) {            ZipEntry entry = ((ZipEntry) entries.nextElement());            if (entry.getName().contains(nameContains)) {                InputStream in = zf.getInputStream(entry);                String str = folderPath + File.separator + entry.getName();                str = new String(str.getBytes("utf-8"), "gbk");                // str.getBytes("GB2312"),"8859_1" 输出                // str.getBytes("8859_1"),"GB2312" 输入                File desFile = new File(str);                if (!desFile.exists()) {                    File fileParentDir = desFile.getParentFile();                    if (!fileParentDir.exists()) {                        fileParentDir.mkdirs();                    }                    desFile.createNewFile();                }                OutputStream out = new FileOutputStream(desFile);                byte buffer[] = new byte[BUFF_SIZE];                int realLength;                while ((realLength = in.read(buffer)) > 0) {                    out.write(buffer, 0, realLength);                }                in.close();                out.close();                fileList.add(desFile);            }        }        return fileList;    }    /**     * 获得压缩文件内文件列表     *     * @param zipFile 压缩文件     * @return 压缩文件内文件名称     * @throws ZipException 压缩文件格式有误时抛出     * @throws IOException  当解压缩过程出错时抛出     */    public static ArrayList
      
        getEntriesNames(File zipFile) throws ZipException, IOException {        ArrayList
       
         entryNames = new ArrayList
        
         (); Enumeration
          entries = getEntriesEnumeration(zipFile); while (entries.hasMoreElements()) { ZipEntry entry = ((ZipEntry) entries.nextElement()); entryNames.add(new String(getEntryName(entry).getBytes("GB2312"), "8859_1")); } return entryNames; } /** * 获得压缩文件内压缩文件对象以取得其属性 * * @param zipFile 压缩文件 * @return 返回一个压缩文件列表 * @throws ZipException 压缩文件格式有误时抛出 * @throws IOException IO操作有误时抛出 */ public static Enumeration
          getEntriesEnumeration(File zipFile) throws ZipException, IOException { ZipFile zf = new ZipFile(zipFile); return zf.entries(); } /** * 取得压缩文件对象的名称 * * @param entry 压缩文件对象 * @return 压缩文件对象的名称 * @throws UnsupportedEncodingException */ public static String getEntryName(ZipEntry entry) throws UnsupportedEncodingException { return new String(entry.getName().getBytes("GB2312"), "8859_1"); } public static void unzip(String zipFileName, String outputDirectory) throws IOException { ZipFile zipFile = null; try { zipFile = new ZipFile(zipFileName); Enumeration e = zipFile.entries(); ZipEntry zipEntry = null; File dest = new File(outputDirectory); dest.mkdirs(); while (e.hasMoreElements()) { zipEntry = (ZipEntry) e.nextElement(); String entryName = zipEntry.getName(); InputStream in = null; FileOutputStream out = null; try { if (zipEntry.isDirectory()) { String name = zipEntry.getName(); name = name.substring(0, name.length() - 1); File f = new File(outputDirectory + File.separator + name); f.mkdirs(); } else { int index = entryName.lastIndexOf("\\"); if (index != -1) { File df = new File(outputDirectory + File.separator + entryName.substring(0, index)); df.mkdirs(); } index = entryName.lastIndexOf("/"); if (index != -1) { File df = new File(outputDirectory + File.separator + entryName.substring(0, index)); df.mkdirs(); } File f = new File(outputDirectory + File.separator + zipEntry.getName()); // f.createNewFile(); in = zipFile.getInputStream(zipEntry); out = new FileOutputStream(f); int c; byte[] by = new byte[1024]; while ((c = in.read(by)) != -1) { out.write(by, 0, c); } out.flush(); } } catch (IOException ex) { ex.printStackTrace(); throw new IOException("解压失败：" + ex.toString()); } finally { if (in != null) { try { in.close(); } catch (IOException ex) { } } if (out != null) { try { out.close(); } catch (IOException ex) { } } } } } catch (IOException ex) { ex.printStackTrace(); throw new IOException("解压失败：" + ex.toString()); } finally { if (zipFile != null) { try { zipFile.close(); } catch (IOException ex) { } } } }}
        
       
      
     
    
   

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