Image Upload on Server

Now in this example I will show you how to send an image file.

Java Code:

package com.example.imageuploadonserver;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.widget.Toast;
 
public class UploadImage extends Activity {
    InputStream inputStream;
        @Override
    public void onCreate(Bundle icicle) {
            super.onCreate(icicle);
            setContentView(R.layout.activity_image_upload);
 
            Bitmap bitmap = BitmapFactory.decodeResource(getResources(),R.drawable.ic_launcher);          
			ByteArrayOutputStream stream = new ByteArrayOutputStream();
            bitmap.compress(Bitmap.CompressFormat.PNG, 90, stream); //compress to which format you want.
            byte [] byte_arr = stream.toByteArray();
            String image_str = Base64.encodeBytes(byte_arr);
            ArrayList nameValuePairs = new  ArrayList();
 
            nameValuePairs.add(new BasicNameValuePair("image",image_str));
 
            try{
                HttpClient httpclient = new DefaultHttpClient();
                HttpPost httppost = new HttpPost("http://10.0.0.23/Upload_image_ANDROID/upload_image.php");
                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
                HttpResponse response = httpclient.execute(httppost);
                String the_string_response = convertResponseToString(response);
                Toast.makeText(UploadImage.this, "Response " + the_string_response, Toast.LENGTH_LONG).show();
            }catch(Exception e){
                  Toast.makeText(UploadImage.this, "ERROR " + e.getMessage(), Toast.LENGTH_LONG).show();
                  System.out.println("Error in http connection "+e.toString());
            }
        }
 
        public String convertResponseToString(HttpResponse response) throws IllegalStateException, IOException{
 
             String res = "";
             StringBuffer buffer = new StringBuffer();
             inputStream = response.getEntity().getContent();
             int contentLength = (int) response.getEntity().getContentLength(); //getting content length�..
             Toast.makeText(UploadImage.this, "contentLength : " + contentLength, Toast.LENGTH_LONG).show();
             if (contentLength < 0){
             }
             else{
                    byte[] data = new byte[512];
                    int len = 0;
                    try
                    {
                        while (-1 != (len = inputStream.read(data)) )
                        {
                            buffer.append(new String(data, 0, len)); //converting to string and appending  to stringbuffer�..
                        }
                    }
                    catch (IOException e)
                    {
                        e.printStackTrace();
                    }
                    try
                    {
                        inputStream.close(); // closing the stream�..
                    }
                    catch (IOException e)
                    {
                        e.printStackTrace();
                    }
                    res = buffer.toString();     // converting stringbuffer to string�..
 
                    Toast.makeText(UploadImage.this, "Result : " + res, Toast.LENGTH_LONG).show();
                    //System.out.println("Response => " +  EntityUtils.toString(response.getEntity()));
             }
             return res;
        }
}

Base64 Code:

Now download a file from here which encodeBytes in Base64 Format. Put this file in the same package of UploadImage.java. See the screenshot.

Now the server part.
Create a folder named Upload_image_ANDROID in your htdocs folder and inside that create a file named upload_image.php and copy this code into it.

    $base=$_REQUEST['image'];
     $binary=base64_decode($base);
    header('Content-Type: bitmap; charset=utf-8');
    $file = fopen('uploaded_image.jpg', 'wb');
    fwrite($file, $binary);
    fclose($file);
    echo 'Image upload complete!!, Please check your php file directory��';
?>

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