java http下载文件

private boolean downloadFile(String httpUrl, String savePath) {
        int byteread = 0;
        try {
            URL url = new URL(httpUrl);
            URLConnection conn = url.openConnection();
            InputStream inStream = conn.getInputStream();
            FileOutputStream fs = new FileOutputStream(savePath);
            byte[] buffer = new byte[1204];
            while ((byteread = inStream.read(buffer)) != -1) {
                fs.write(buffer, 0, byteread);
            }
            System.out.println(savePath+" download finished!");
            return true;
        } catch (MalformedURLException e) {
            e.printStackTrace();
            return false;
        } catch (IOException e) {
            e.printStackTrace();
            return false;
        }
    }