Android- POST 多部分表单数据 [英] Android- POST multipart form data

问题描述

我想发送包含视频和数据(例如电子邮件和姓名)的多部分表单.以下是我的代码，它不起作用，服务器没有响应

I would like to send multipart form with video and data such as Email and name. The following is my code and it does not work ,there is no response from the server

File file =new File(VideoPath);
    HttpClient httpclient = new DefaultHttpClient();
    HttpPost httppost = new HttpPost(url);

        try {
            // Add your data
            List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
            nameValuePairs.add(new BasicNameValuePair("Name", "LDGHT"));
            nameValuePairs.add(new BasicNameValuePair("Email", "[e-mail]"));

            httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
            httppost.setEntity(new FileEntity(file, "video/mp4"));

            // Execute HTTP Post Request
            HttpResponse response = httpclient.execute(httppost);

        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
        } catch (IOException e) {
            // TODO Auto-generated catch block
        }

推荐答案

检查我的帖子以发送多部分数据 使用 Multipart 将数据发布到服务器..

Check my Post for Sending Mutipart Data Post Data to Server with Multipart..

也请检查此参考 链接

new Task_finder().execute();

上传视频文件到服务器:

Upload Video File to Server :

    public class Task_finder extends AsyncTask<Void, Void, Void> {
    private final ProgressDialog dialog = new ProgressDialog(Facebook_Post_View.this);
    // can use UI thread here
    protected void onPreExecute() {
        this.dialog.setMessage("Loading...");
        this.dialog.setCancelable(false);
        this.dialog.show();
    }
    @Override
    protected Void doInBackground(Void... arg0) {
        // TODO Auto-generated method stub
        HttpURLConnection conn = null;
        DataOutputStream dos = null;
        DataInputStream inStream = null;
        String existingFileName = file_path;
        String lineEnd = "
";
        String twoHyphens = "--";
        String boundary =  "*****";
        int bytesRead, bytesAvailable, bufferSize;
        byte[] buffer;
        int maxBufferSize = 1*1024*1024;
        String urlString = "YOUR PHP LINK FOR UPLOADING IMAGE";
        try{
            //------------------ CLIENT REQUEST
            FileInputStream fileInputStream = new FileInputStream(new File(existingFileName) );
            // open a URL connection to the Servlet
            URL url = new URL(urlString);
            // Open a HTTP connection to the URL
            conn = (HttpURLConnection) url.openConnection();
            // Allow Inputs
            conn.setDoInput(true);
            // Allow Outputs
            conn.setDoOutput(true);
            // Don't use a cached copy.
            conn.setUseCaches(false);
            // Use a post method.
            conn.setRequestMethod("POST");
            conn.setRequestProperty("Connection", "Keep-Alive");
            conn.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundary);
            dos = new DataOutputStream( conn.getOutputStream() );
            dos.writeBytes(twoHyphens + boundary + lineEnd);

            dos.writeBytes("Content-Disposition: form-data; name="uploadedfile";filename="" + upload_file_name + """ + lineEnd); // uploaded_file_name is the Name of the File to be uploaded
            dos.writeBytes(lineEnd);
            bytesAvailable = fileInputStream.available();
            bufferSize = Math.min(bytesAvailable, maxBufferSize);
            buffer = new byte[bufferSize];
            bytesRead = fileInputStream.read(buffer, 0, bufferSize);
            while (bytesRead > 0){
                dos.write(buffer, 0, bufferSize);
                bytesAvailable = fileInputStream.available();
                bufferSize = Math.min(bytesAvailable, maxBufferSize);
                bytesRead = fileInputStream.read(buffer, 0, bufferSize);
            }
            dos.writeBytes(lineEnd);
            dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
            fileInputStream.close();
            dos.flush();
            dos.close();
        }
        catch (MalformedURLException ex){
            Log.e("Debug", "error: " + ex.getMessage(), ex);
        }
        catch (IOException ioe){
            Log.e("Debug", "error: " + ioe.getMessage(), ioe);
        }
        //------------------ read the SERVER RESPONSE
        try {
            inStream = new DataInputStream ( conn.getInputStream() );
            String str;
            while (( str = inStream.readLine()) != null){
                Log.e("Debug","Server Response "+str);
                reponse_data=str;
            }
            inStream.close();
        }
        catch (IOException ioex){
            Log.e("Debug", "error: " + ioex.getMessage(), ioex);
        }
       return null;
    }

    @Override
    protected void onPostExecute(Void result) {

        if (this.dialog.isShowing()) {
            this.dialog.dismiss();
        }
    }
}

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