Java: 从 Multipart POST 请求中获取视频文件

Question

我正在将 Android 客户端的视频文件作为多部分请求发布到我的服务器。我需要编写一个服务器端方法来接收以下请求。

我使用 Jersey 作为服务器端框架

我的代码如下：

private void send_video_to_server(String videoPath) throws ParseException, IOException {

        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httppost = new HttpPost("http://MY_SERVER_URL/videos/postvideo");

        FileBody filebodyVideo = new FileBody(new File(videoPath));
        StringBody title = new StringBody(titleBox.getText().toString());
        StringBody description = new StringBody(captionBox.getText().toString());

        MultipartEntity reqEntity = new MultipartEntity();
        reqEntity.addPart("videoFile", filebodyVideo);
        reqEntity.addPart("title", title);
        reqEntity.addPart("description", description);
        httppost.setEntity(reqEntity);

        // DEBUG
        System.out.println( "executing request " + httppost.getRequestLine( ) );
        HttpResponse response = httpclient.execute( httppost );
        HttpEntity resEntity = response.getEntity( );

        // DEBUG
        System.out.println( response.getStatusLine( ) );
        if (resEntity != null) {
            System.out.println( EntityUtils.toString( resEntity ) );
        } // end if

        if (resEntity != null) {
            resEntity.consumeContent( );
        } // end if

        httpclient.getConnectionManager( ).shutdown( );
    }

如何将 SERVER 端代码写入 RECEIVE 上述请求？ 方法签名足以回答问题 :)

Answer 1

到底是什么问题？不知道泽西岛，但步骤是：

1)写一个servlet(http://www.tutorialspoint.com/servlets/servlets-first-example.htm)

2) Servlet 输入参数 HttpServletRequest 包含 getParts() 方法，您可以在其中找到您发布的视频...以及其他部分（如果有的话）

编辑

未经测试，但这对您有帮助吗？你应该可以这样获取视频数据流。


protected void doPost(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException
    {
        Collection parts = req.getParts();
        for (Part part : parts) {
            //... determine if its a file part from content disposition for example
            InputStream is = part.getInputStream();
            //...work with your input stream
        }
    }

详细的例子，看spring是怎么做的： See spring way

Java: 从 Multipart POST 请求中获取视频文件

Java: Get Video file from Multipart POST request

java

rest

google-app-engine

android

jersey