解压文件

/**
	 * 解压文件到指定目录
	 * @param zipFile   待解压的文件
	 * @param descDir   解压文件后的路径
	 * @return
	 */
	@SuppressWarnings("rawtypes")
	public boolean unZipFiles(File zipfile, File descDir,Boolean delete_zip) {
		try {
			if (!descDir.exists())
				descDir.mkdirs();
			if (descDir.exists()) {
				ZipFile zipFile = new ZipFile(zipfile);
				Enumeration en = zipFile.getEntries();
				ZipEntry zipEntry = null;
				while (en.hasMoreElements()) {
					zipEntry = (ZipEntry) en.nextElement();
					if (zipEntry.isDirectory()) {//如果这是一个目录,创建目录
						String dirName = zipEntry.getName();
						dirName = dirName.substring(0, dirName.length() - 1);
						File f = new File(descDir.getPath() + File.separator + dirName);
						f.mkdirs();
					} else {// 解压文件
						File f = new File(descDir,zipEntry.getName());
						if (!f.exists()) {// 判断文件不存在的话，就创建该文件所在文件夹的目录
							String[] arrFolderName = zipEntry.getName().split("/");
							String strRealFolder = "";
							for (int i = 0; i < (arrFolderName.length - 1); i++) {
								try {
									strRealFolder += arrFolderName[i] + File.separator;
								} catch (Exception e) {
									outErrorLog(this, "unZipFiles", e);
								}
							}
							strRealFolder = descDir.getPath() + File.separator+ strRealFolder;
							File tempDir = new File(strRealFolder);
							tempDir.mkdirs();
						}
						f.createNewFile();
						InputStream in = zipFile.getInputStream(zipEntry);
						FileOutputStream out = new FileOutputStream(f);
						int c;
						byte[] by = new byte[1024];
						while   ((c = in.read(by)) != -1) {
							try {
								out.write(by, 0, c);
							} catch (Exception e) {
								continue;
							}
						}
					}
				}
				if(delete_zip)
					zipfile.delete();
				return true;
			}
			return false;
		} catch (Exception e) {
			
			return false;
		}
	}