最简单的网络资源下载类

public class download {
    public static void main(String[] args)  {
        FileOutputStream fos = null;
        InputStream inputStream = null;
        HttpURLConnection urlConnection =null;
        try {
            URL url = new URL("https://t7.baidu.com/it/u=2604797219,1573897854&fm=193&f=GIF");
            urlConnection = (HttpURLConnection) url.openConnection();
            inputStream = urlConnection.getInputStream();
            fos = new FileOutputStream(new File("d:\\test\\8888.jpg"));
            //创建Buffer
            byte[] buffer = new byte[1024];
            //读取数据到Buffer
            int read;
            while ((read = inputStream.read(buffer)) != -1) {
                fos.write(buffer, 0, read);
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            //关闭
            try {
                fos.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
            try {
                inputStream.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
            urlConnection.disconnect();
        }
    }
}