Android zip文件压缩解压缩

package com.android.systemu.util;


import java.io.*;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Enumeration;
import java.util.List;
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
 * 压缩文件夹
 * 
 * @author once
 */
public class ZipUtils {
	private static final int BUFF_SIZE = 1024 * 1024; // 1M Byte

	
	public static void main(String[] args) throws Exception {
		File resFile=new File("e://test//tomcat");
		ZipOutputStream zipOutputStream=new ZipOutputStream(new FileOutputStream("e://test//test.zip"));
		zipFile(resFile, zipOutputStream, "");
		zipOutputStream.flush();
		zipOutputStream.close();
		
		upZipFile(new File("e://test//test.zip"), "e://test//out");
		
		List<File> resFileList=new ArrayList<File>();
		resFileList.add(new File("e://tomcat"));
		resFileList.add(new File("e://tool"));
		File zipOutFile=new File("e://test//mul.zip");
		zipFiles(resFileList, zipOutFile, "你是猪");
		
		upZipSelectedFile(zipOutFile, "e://test//out2", "");
		System.out.println(new File(".").getAbsolutePath());
	}
	/**
	 * 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(new String(comment.getBytes("UTF-8"),"UTF-8"));
		
		zipout.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());
			InputStream in = zf.getInputStream(entry);
			String str = folderPath + File.separator + entry.getName();
			str = new String(str.getBytes("UTF-8"), "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<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("UTF-8"), "UTF-8");
				// str.getBytes("UTF-8"),"8859_1" 输出
				// str.getBytes("8859_1"),"UTF-8" 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("UTF-8"),
					"UTF-8"));
		}
		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("UTF-8"), "UTF-8");
	}

	/**
	 * 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("UTF-8"), "UTF-8");
	}

	/**
	 * 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("UTF-8"), "UTF-8");
		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();
		}
	}
}

http://www.oschina.net/code/snippet_4873_4142

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