Android: Upload image or file using http POST to ASP NET

Upload image to server(asp net web project) using Android 2.x SDK.

By using this method,  you will be able to upload a file from your SD Card and also Bitmap image as a file.

Prerequisite: httpmime-4.1-beta1.jar

Android SDK uses apache  http Client of version 3.0. That does not support for the mime type.

So download the latest HttpClient from here. (Go to latest i.e. HttpClient 4.1-Beta1, and download zip file from Binary with dependencies)

Now include the above jar file as an external jar file.

Now create a new project and update your code from following:

import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.InputStreamReader;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
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.ByteArrayBody;
import org.apache.http.entity.mime.content.StringBody;
import org.apache.http.impl.client.DefaultHttpClient;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.util.Log;

public class FileUpload extends Activity {
Bitmap bm;
@Override
public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);

      try {

          // bm = BitmapFactory.decodeResource(getResources(),

          // R.drawable.forest);

          bm = BitmapFactory.decodeFile("/sdcard/example.jpg");

          executeMultipartPost();

      } catch (Exception e) {

          Log.e(e.getClass().getName(), e.getMessage());
      }

  }

  public void executeMultipartPost() throws Exception {

      try {

          ByteArrayOutputStream bos = new ByteArrayOutputStream();

          bm.compress(CompressFormat.JPEG, 75, bos);

          byte[] data = bos.toByteArray();

          HttpClient httpClient = new DefaultHttpClient();

          HttpPost postRequest = new HttpPost(

                  "http://ipaddress/context/servermethod");

          ByteArrayBody bab = new ByteArrayBody(data, "example.jpg");

          // File file= new File("/mnt/sdcard/example.jpg");

          // FileBody bin = new FileBody(file);

          MultipartEntity reqEntity = new MultipartEntity(

                  HttpMultipartMode.BROWSER_COMPATIBLE);

          reqEntity.addPart("uploaded", bab);

          reqEntity.addPart("photoCaption", new StringBody("sfsdfsdf"));

          postRequest.setEntity(reqEntity);

          HttpResponse response = httpClient.execute(postRequest);

          BufferedReader reader = new BufferedReader(new InputStreamReader(

                  response.getEntity().getContent(), "UTF-8"));

          String sResponse;

          StringBuilder s = new StringBuilder();



          while ((sResponse = reader.readLine()) != null) {

              s = s.append(sResponse);

          }

          System.out.println("Response: " + s);

      } catch (Exception e) {

          // handle exception here

          Log.e(e.getClass().getName(), e.getMessage());

      }

  }

}