Upload image to Mysql Database using android studio

Hii i trying to upload a image to the Mysql database, and the image had been uploaded but i not sure whether I doing it correct or not.

Here is my code

public void onClick(View v) {

String name = ""+etName.getText().toString();

            String age = ""+etAge.getText().toString();

           String email = ""+etEmail.getText().toString();

           String img_str = ""+etImage.getImageAlpha();



           List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
           nameValuePairs.add(new BasicNameValuePair("name", name));
           nameValuePairs.add(new BasicNameValuePair("age", age));
           nameValuePairs.add(new BasicNameValuePair("email", email));
           nameValuePairs.add(new BasicNameValuePair("image_insert", img_str));

String img_str = ""+etImage.getImageAlpha(); Am i doing it correctly for this part?