JAVA-http下载文件

public static boolean httpDownload(String httpUrl, String saveFile) {
		// 下载网络文件
		int bytesum = 0;
		int byteread = 0;

		URL url = null;
		try {
			url = new URL(httpUrl);
		} catch (MalformedURLException e1) {
			e1.printStackTrace();
			return false;
		}

		try {
			URLConnection conn = url.openConnection();
			InputStream inStream = conn.getInputStream();
			FileOutputStream fs = new FileOutputStream(saveFile);

			byte[] buffer = new byte[1204];
			while ((byteread = inStream.read(buffer)) != -1) {
				bytesum += byteread;
				System.out.println(bytesum);
				fs.write(buffer, 0, byteread);
			}
			return true;
		} catch (FileNotFoundException e) {
			e.printStackTrace();
			return false;
		} catch (IOException e) {
			e.printStackTrace();
			return false;
		}
	}