Android : upload Image and JSON using MultiPartEntityBuilder

Question

I try to upload data to server, my data containing multiple images and large JSON, before it, I Try to send with convert image to string using base64 and send my another data and image that I've convert before with JSON, but I face Problem OutOfMemory here, so I read one of solutions that said I must to try using MultipartEntityBuilder. I still confusing and not understand how to do it with MultiPartEntityBuilder, Is there anyone can help me the way to do it with MultiPartEntityBuilder? this is my code :

    try{
    //membuat HttpClient
    //membuat HttpPost
    HttpPost httpPost= new HttpPost(url);
    SONObject jsonObjectDP= new JSONObject();
    System.out.println("file audio "+me.getModelDokumenPendukung().getAudio());
    jsonObjectDP.put("audio_dp",MethodEncode.EncodeAudio(me.getModelDokumenPendukung().getAudio()));
    jsonObjectDP.put("judul_audio",me.getModelDokumenPendukung().getJudul_audio());
    jsonObjectDP.put("ket_audio",me.getModelDokumenPendukung().getKet_audio());
    JSONArray ArrayFoto= new JSONArray();

    //This loop For my multiple File  Images
    List<ModelFoto>ListFoto=me.getModelDokumenPendukung().getListFoto();
    for (int i=0; i<ListFoto.size();i++) {
        JSONObject jsonObject= new JSONObject();
        jsonObject.put("foto", ListFoto.get(i).getFile_foto());
        jsonObject.put("judul_foto", ListFoto.get(i).getJudul_foto());
        jsonObject.put("ket_foto", ListFoto.get(i).getKet_foto());
        ArrayFoto.put(jsonObject);

    }

    JSONObject JSONESPAJ=null;
     JSONESPAJ = new JSONObject();
     JSONObject JSONFINAL = new JSONObject();
            JSONESPAJ.put("NO_PROPOSAL",me.getModelID().getProposal());
            JSONESPAJ.put("GADGET_SPAJ_KEY",me.getModelID().getIDSPAJ());
            JSONESPAJ.put("NO_VA",me.getModelID().getVa_number());
            JSONESPAJ.put("Dokumen_Pendukung",jsonObjectDP);

            JSONFINAL.put("ESPAJ", JSONESPAJ);
            JSONFINAL.put("CLIENT", "ANDROID");
            JSONFINAL.put("APP", "ESPAJ");

            MultipartEntityBuilder multiPartEntityBuilder= MultipartEntityBuilder.create();
    multiPartEntityBuilder.addPart("ESPAJ",JSONFINAL.toString());

    httpPost.setEntity(multiPartEntityBuilder.build());

    HttpResponse httpResponse = httpclient.execute(httpPost);


    inputStream = httpResponse.getEntity().getContent();
        if(inputStream != null)
        result = convertInputStreamToString(inputStream);
    else
        result = "Did not work!";
}catch(OutOfMemoryError e){
      Log.e("MEMORY EXCEPTION: ", e.toString());
} catch(ConnectTimeoutException e){
    Log.e("Timeout Exception: ", e.toString());
} catch(SocketTimeoutException ste){    
    Log.e("Timeout Exception: ", ste.toString());
} catch (Exception e) {
//    Log.d("InputStream", e.getLocalizedMessage());
}
private static String convertInputStreamToString(InputStream inputStream) throws IOException{
    BufferedReader bufferedReader = new BufferedReader( new InputStreamReader(inputStream));
    String line = "";
    String result = "";
    while((line = bufferedReader.readLine()) != null)
//      hasil=line;
        result += line;

    inputStream.close();
    return result;

}   

is there anyone can help me to teach and tell me how to send JSON and Image using MultiPartEntityBuilder?

Answer 1

To send binary data you need to use addBinaryBody method of MultipartEntityBuilder. Sample of attaching:

import org.apache.http.entity.ContentType;
import org.apache.http.entity.mime.MultipartEntityBuilder;
//Image attaching
MultipartEntityBuilder multipartEntity = MultipartEntityBuilder.create();
File file;
multipartEntity.addBinaryBody("someName", file, ContentType.create("image/jpeg"), file.getName());
//Json string attaching
String json;
multipartEntity.addPart("someName", new StringBody(json, ContentType.TEXT_PLAIN));

Then make request as usual:

HttpPut put = new HttpPut("url");
put.setEntity(multipartEntity.build());
HttpResponse response = client.execute(put);
int statusCode = response.getStatusLine().getStatusCode();