Android zip文件壓縮解壓縮

out.write(buffer, 0, realLength);

}

in.close();

out.close();

}

}

/**

* 解壓文件名包含傳入文字的文件

*

* @param zipFile 壓縮文件

* @param folderPath 目標文件夾

* @param nameContains 傳入的文件匹配名

* @throws ZipException 壓縮格式有誤時拋出

* @throws IOException IO錯誤時拋出

*/

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 輸出

// str.getBytes(8859_1),GB2312 輸入

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;

}

/**

* 獲得壓縮文件內文件列表

*

* @param zipFile 壓縮文件

* @return 壓縮文件內文件名稱

* @throws ZipException 壓縮文件格式有誤時拋出

* @throws IOException 當解壓縮過程出錯時拋出

*/

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;

}

/**

* 獲得壓縮文件內壓縮文件對象以取得其屬性

*

* @param zipFile 壓縮文件

* @return 返回一個壓縮文件列表

* @throws ZipException 壓縮文件格式有誤時拋出

* @throws IOException IO操作有誤時拋出

*/

public static Enumeration getEntriesEnumeration(File zipFile) throws ZipException,

IOException {

ZipFile zf = new ZipFile(zipFile);

return zf.entries();

}

/**

* 取得壓縮文件對象的注釋

*

* @param entry 壓縮文件對象

* @return 壓縮文件對象的注釋

* @throws UnsupportedEncodingException

*/

public static String getEntryComment(ZipEntry entry) throws UnsupportedEncodingException {

return new String(entry.getComment().getBytes(GB2312), 8859_1);

}

/**

* 取得壓縮文件對象的名稱

*

* @param entry 壓縮文件對象

* @return 壓縮文件對象的名稱

* @throws UnsupportedEncodingException

*/

public static String getEntryName(ZipEntry entry) throws UnsupportedEncodingException {

return new String(entry.getName().getBytes(GB2312), 8859_1);

}

/**

* 壓縮文件

*

* @param resFile 需要壓縮的文件(夾)

* @param zipout 壓縮的目的文件

* @param rootpath 壓縮的文件路徑

* @throws FileNotFoundException 找不到文件時拋出

* @throws IOException 當壓縮過程出錯時拋出

*/

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;