Android文件壓縮和解壓

Java代碼

package com.maidong.utils;

import java.io.BufferedInputStream;

import java.io.BufferedOutputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.io.UnsupportedEncodingException;

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;

import org.apache.http.protocol.HTTP;

public class ZipUtils {

private static final int BUFF_SIZE = 1024 * 1024; // 1M Byte

/**

* 批量壓縮文件(夾)

*

* @param resFileList

*??????????? 要壓縮的文件(夾)列表

* @param zipFile

*??????????? 生成的壓縮文件

* @throws IOException

*???????????? 當壓縮過程出錯時拋出

*/

public static void zipFiles(Collection resFileList, File zipFile) throws IOException {

ZipOutputStream zipout = null;

try {

zipout = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(zipFile), BUFF_SIZE));

for (File resFile : resFileList) {

zipFile(resFile, zipout, "");

}

} finally {

if (zipout != null)

zipout.close();

}

}

/**

* 批量壓縮文件(夾)

*

* @param resFileList

*??????????? 要壓縮的文件(夾)列表

* @param zipFile

*??????????? 生成的壓縮文件

* @param comment

*??????????? 壓縮文件的注釋

* @throws IOException

*???????????? 當壓縮過程出錯時拋出

*/

public static void zipFiles(Collection resFileList, File zipFile, String comment) throws IOException {

ZipOutputStream zipout = null;

try {

zipout = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(zipFile), BUFF_SIZE));

for (File resFile : resFileList) {

zipFile(resFile, zipout, "");

}

zipout.setComment(comment);

} finally {

if (zipout != null)

zipout.close();

}

}

/**

* 解壓縮一個文件

*

* @param zipFile

*??????????? 壓縮文件

* @param folderPath

*??????????? 解壓縮的目標目錄

* @throws IOException

*???????????? 當解壓縮過程出錯時拋出

*/

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);

InputStream in = null;

OutputStream out = null;

try {

for (Enumeration> entries = zf.entries(); entries.hasMoreElements();) {

ZipEntry entry = ((ZipEntry) entries.nextElement());

in = zf.getInputStream(entry);

String str = folderPath + File.separator + entry.getName();

str = new String(str.getBytes("8859_1"), HTTP.UTF_8);

File desFile = new File(str);

if (!desFile.exists()) {

File fileParentDir = desFile.getParentFile();

if (!fileParentDir.exists()) {

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