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 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 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 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("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 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();
    }
    }
    }