创建压缩文件

参数：file -> 需要一块压缩的文件list outputStream->在本地创建的zip文件的输出流

public void zipFiles(List files,
ZipOutputStream outputStream) {
int size = files.size();
for(int i = 0; i < size; i++) {
File file = (File) files.get(i);
zipFile(file, outputStream);
}
}

private void zipFile(File inputFile, ZipOutputStream outputStream) {
	try {
		if(inputFile.exists()) {
			/**如果是目录的话这里是不采取操作的*/
			if (inputFile.isFile()) {
				FileInputStream IN = new FileInputStream(inputFile);
				BufferedInputStream bins = new BufferedInputStream(IN, 512);
				//org.apache.tools.zip.ZipEntry
				ZipEntry entry = new ZipEntry(inputFile.getName());
				outputStream.putNextEntry(entry);
				// 向压缩文件中输出数据
				int nNumber;
				byte[] buffer = new byte[512];
				while ((nNumber = bins.read(buffer)) != -1) {
					outputStream.write(buffer, 0, nNumber);
				}
				// 关闭创建的流对象
				bins.close();
				IN.close();
			} else {
				try {
					File[] files = inputFile.listFiles();
					for (int i = 0; i < files.length; i++) {
						zipFile(files[i], outputStream);
					}
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		}
	} catch (Exception e) {
		e.printStackTrace();
	}
}