Android Zip工具类ZipUtils

import java.io.*;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipException;
import java.util.zip.ZipFile;
import java.util.zip.ZipOutputStream;

/**

  • Java utils 实现的Zip工具

  • @author xx
    */
    public class ZipUtils {
    private static final int BUFF_SIZE = 1024 * 1024; // 1M Byte

    /**

    • 批量压缩文件(夹)
    • @param resFileList 要压缩的文件(夹)列表
    • @param zipFile 生成的压缩文件
    • @throws IOException 当压缩过程出错时抛出
      */
      public static void zipFiles(Collection<File> resFileList, File zipFile) throws IOException {
      ZipOutputStream zipout = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(
      zipFile), BUFF_SIZE));
      for (File resFile : resFileList) {
      zipFile(resFile, zipout, "");
      }
      zipout.close();
      }

    /**

    • 批量压缩文件(夹)
    • @param resFileList 要压缩的文件(夹)列表
    • @param zipFile 生成的压缩文件
    • @param comment 压缩文件的注释
    • @throws IOException 当压缩过程出错时抛出
      */
      public static void zipFiles(Collection<File> resFileList, File zipFile, String comment)
      throws IOException {
      ZipOutputStream zipout = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(
      zipFile), BUFF_SIZE));
      for (File resFile : resFileList) {
      zipFile(resFile, zipout, "");
      }
      zipout.setComment(comment);
      zipout.close();
      }

    /**

    • 解压缩一个文件 160314

    • @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());
      //ss:if it's a filedir,it need to be opened 160314
      //String name = entry.getName();
      //if(name.endsWith(File.separator))
      //continue;

       InputStream in = zf.getInputStream(entry);
       String str = folderPath + File.separator + entry.getName();
       str = new String(str.getBytes("8859_1"), "GB2312");
       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<File> upZipSelectedFile(File zipFile, String folderPath,
      String nameContains) throws ZipException, IOException {
      ArrayList<File> fileList = new ArrayList<File>();

      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("8859_1"), "GB2312");
      // 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<String> getEntriesNames(File zipFile) throws ZipException, IOException {
      ArrayList<String> entryNames = new ArrayList<String>();
      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注释
    • @param entry 压缩文件对象
    • @return 压缩文件对象的注释
    • @throws UnsupportedEncodingException
      */
      public static String getEntryComment(ZipEntry entry) throws UnsupportedEncodingException {
      return new String(entry.getComment().getBytes("GB2312"), "8859_1");
      }

    /**

    • 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");
      }

    /**

    • 压缩文件
    • @param resFile 需要压缩的文件(夹)
    • @param zipout 压缩的目的文件
    • @param rootpath 压缩的文件路径
    • @throws FileNotFoundException 找不到文件时抛出
    • @throws IOException 当压缩过程出错时抛出
      */
      private static void zipFile(File resFile, ZipOutputStream zipout, String rootpath)
      throws FileNotFoundException, IOException {
      rootpath = rootpath + (rootpath.trim().length() == 0 ? "" : File.separator)
      + resFile.getName();
      rootpath = new String(rootpath.getBytes("8859_1"), "GB2312");
      if (resFile.isDirectory()) {
      File[] fileList = resFile.listFiles();
      for (File file : fileList) {
      zipFile(file, zipout, rootpath);
      }
      } else {
      byte buffer[] = new byte[BUFF_SIZE];
      BufferedInputStream in = new BufferedInputStream(new FileInputStream(resFile),
      BUFF_SIZE);
      zipout.putNextEntry(new ZipEntry(rootpath));
      int realLength;
      while ((realLength = in.read(buffer)) != -1) {
      zipout.write(buffer, 0, realLength);
      }
      in.close();
      zipout.flush();
      zipout.closeEntry();
      }
      }
      }

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