Android zip文件压缩解压缩

Length);

}

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(buf