Java 实现视频下载功能

  public static boolean httpDownload(String httpUrl, String saveFile) {
        // 1.下载网络文件
        int byteRead;
        URL url;
        try {
            url = new URL(httpUrl);
        } catch (MalformedURLException e1) {
            e1.printStackTrace();
            return false;
        }

        try {
            //2.获取链接
            URLConnection conn = url.openConnection();
            //3.输入流
            InputStream inStream = conn.getInputStream();
            //3.写入文件
            FileOutputStream fs = new FileOutputStream(saveFile);

            byte[] buffer = new byte[1024];
            while ((byteRead = inStream.read(buffer)) != -1) {
                fs.write(buffer, 0, byteRead);
            }
            inStream.close();
            fs.close();
            return true;
        } catch (FileNotFoundException e) {
            e.printStackTrace();
            return false;
        } catch (IOException e) {
            e.printStackTrace();
            return false;
        }
    }

    @Test
    public void httpDownload() {
        httpDownload("http://video.zhihuishu.com/zhs/ablecommons/demo/201806/dddee1c446314b84a26c74a8def3c3c7.mp4","E:\\test/22.mp4");
    }

前提需要：加载servlet容器，不能使用main方法直接调用