programacion - mostrar imágenes en listview de android desde servidor

¿Cómo subir imágenes al servidor en Android?

Question

Estoy intentando cargar Captura de imagen por cámara en el servidor. el servidor envía el código de respuesta = 200 pero la imagen no se carga en el servidor.

El código es:

private boolean uploadData() {

    int count = this.forumThreadsB.size();
    for (int i = 0; i < count; i++)
    {
            if (isPhoto)
                message = "Uploading Shared Items " + (i + 1) + " of " + count;
            else
                message = "Uploading Shared Items " + (i + 1) + " of " + count;

            progressCount = (i * 1000)/count; 
            Hashtable<?, ?> threadD = (Hashtable<?, ?>)this.forumThreadsB.elementAt(i);

            String onlinePath = "http://xyx.com/;
            threadid = (String) threadD.get("devicethreadid");
            Hashtable<String, String> pairs = new Hashtable<String, String>();
            pairs.put("forumid",  threadD.get("lmsforumid").toString());
            pairs.put("topicid",  threadD.get("lmsthreadid").toString());
            pairs.put("clientid", LoginHelper.clientid);
            String fullfilepath = threadD.get("offlinepath").toString();
            int index = threadD.get("offlinepath").toString().lastIndexOf("/");

            String filename = fullfilepath.substring(index + 1);
            String filetype = "";

            if (filename.toLowerCase().contains(".png"))
                filetype = "image/png";
            else if (filename.toLowerCase().contains(".jpg"))
                filetype = "image/jpeg";
            else if (filename.toLowerCase().contains(".mp4"))
                filetype = "image/mp4";
            else if (filename.toLowerCase().contains(".3gp"))
                filetype = "image/3gpp";



            String boundaryMessage = getBoundaryMessage(BOUNDARY, pairs, fullfilepath, filename, filetype);
            String endBoundary = "/r/n--" + BOUNDARY + "--/r/n";

            HttpURLConnection conn = null;
            DataOutputStream dos = null;
            String lineEnd = "/r/n";
            String twoHyphens = "--";
            int bytesRead, bytesAvailable, bufferSize;
            byte[] buffer;
            int maxBufferSize = 1*1024*1024;

            try
            {
                URL url = new URL(onlinePath);
                conn = (HttpURLConnection) url.openConnection();
                conn.setDoInput(true);
                conn.setDoOutput(true);
                conn.setUseCaches(false);
                conn.setRequestMethod("POST");
                conn.setRequestProperty("Connection", "Keep-Alive");
                conn.setRequestProperty("Content-Type", "multipart/form-data;boundary="+BOUNDARY);
                dos = new DataOutputStream( conn.getOutputStream() );
                dos.write( boundaryMessage.getBytes());
                File file = new File(fullfilepath.substring(6));
                FileInputStream fileInputStream = new FileInputStream(file);
                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.write(endBoundary.getBytes());
                dos.flush();
                dos.close();
                fileInputStream.close();
                } catch (IOException ioe) {
                    Log.e("SyncUploadDownloadHelper", "Cannot upload file: " + ioe.getMessage(), ioe);
                    //return false;
                }

                // Read response
                try {
                    int responseCode = conn.getResponseCode();
                    if(responseCode == 200){

                         SQLiteForumDAO forumDAO = new SQLiteForumDAO(mcontext) ;
                            ForumThreadDTO forumThreadDTO = forumDAO.selectThread(this.threadid);
                            if(downloadPath!=null && downloadPath.equalsIgnoreCase("null") && downloadPath.equalsIgnoreCase(""))
                            forumThreadDTO.offlinefilepath = downloadPath;
                            forumDAO.updateThread(forumThreadDTO);


                    }


                } catch (IOException ioex) {
                    Log.e("SyncUploadDownloadHelper", "Upload file failed: " + ioex.getMessage(), ioex);
                    //return false;
                } catch (Exception e) {
                    Log.e("SyncUploadDownloadHelper", "Upload file failed: " + e.getMessage(), e);
                    //return false;
                }

                if (i == (this.forumThreadsB.size() - 1)){
                    this.sendStatus = "true";
                    progressCount = 1000;
                    SyncUploadDownloadHelper.this.notifyObservers("SyncUploadDownloadHelper:UploadDataFinish");
                }
                else
                    SyncUploadDownloadHelper.this.notifyObservers("SyncUploadDownloadHelper:UploadData");

                //return true;

    }

    return true;
}

Función:

private String getBoundaryMessage(String boundary, Hashtable<String, String> params, String fileField, String fileName, String fileType) {
      StringBuffer res = new StringBuffer("--").append(boundary).append("/r/n");
      Enumeration<String> keys = params.keys();
      while(keys.hasMoreElements()) {
       String key = (String)keys.nextElement();
       String value = (String)params.get(key);

       System.out.println(key + ": " + value);

       res.append("Content-Disposition: form-data; name=/"").append(key).append("/"/r/n")    
       .append("/r/n").append(value).append("/r/n").append("--").append(boundary).append("/r/n");
      }
      res.append("Content-Disposition: form-data; name=/"").append("file").append("/"; filename=/"").append(fileName).append("/"/r/n") 
      .append("Content-Type: ").append(fileType).append("/r/n/r/n");

      return res.toString();
     }

en mi aplicación Capturo una imagen y la guardo en la base de datos. La ruta de guardar la imagen se usa para cargar el archivo de imagen.

Answer 1

Estoy usando esto:

public class HttpClient extends AsyncTask<Void, Integer, Long> {
    private static final int PROGRESS_DIALOG = 0;

    public ProgressDialog dialog;
    public File file;
    protected Long doInBackground(Void... params) {
        for (File file : files) {

            foto = "/sdcard/CameraExample/" + file.getName();
            DefaultHttpClient httpclient = new DefaultHttpClient();

            HttpPost httppost = new HttpPost(urll);



            MultipartEntity mpEntity = new MultipartEntity(
                    HttpMultipartMode.BROWSER_COMPATIBLE);

            mpEntity.addPart("form_file", new FileBody(file, "image/jpeg"));

            httppost.setEntity(mpEntity);

            HttpResponse response;
            try {

                response = httpclient.execute(httppost);

                HttpEntity resEntity = response.getEntity();

                if (resEntity != null) {

                }
                if (resEntity != null) {
                    resEntity.consumeContent();
                }
            } catch (ClientProtocolException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }



        }
        return null;
    }

    protected void onPostExecute(Long unused) {
        progressDialog.dismiss();

        ((Runnable) ctx ).run();

        super.onPostExecute(unused);
    }

    protected void onPreExecute() {
    progressDialog = new ProgressDialog(ctx);
    progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
    progressDialog.setMessage("Загрузка фото...");
    progressDialog.setProgress(0);
    progressDialog.setMax(count);
    progressDialog.show();
    }

}

Este código usando esa biblioteca:

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntity;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.apache.james.mime4j.message.Message;

Puedes encontrar esto en Google. Si no encuentra, puedo enviarle estas bibliotecas.