Send json array to add multiple records in mysql to php script using volley in android

Question

I am trying to add multiple records in database i am sending json array using string request method in volley in android to php script to add those records.But haven't getting the result of json array in php. I just want to add multiple records in mysql that why sending json array to script to add those records by fetching all data in it

Here is Insert Data function

private void InsertData() {

if(arrayList.size()>0) {
Toast.makeText(getApplicationContext(), "list not null "+i+arrayList.size(), 
 Toast.LENGTH_LONG).show();

//for (i=0;i<arrayList.size();i++) {
    //Toast.makeText(getApplicationContext(),"inside for loop", Toast.LENGTH_LONG).show();


    StringRequest stringRequest = new StringRequest(Request.Method.POST,
            Constants.insert_macthes,
            new Response.Listener<String>() {
                @Override
                public void onResponse(String response) {

                    try {
                        JSONObject jsonObject = new JSONObject(response);


                        if (jsonObject.getInt("success") == 1) {

                            Toast.makeText(getApplicationContext(), jsonObject.getString("message"), Toast.LENGTH_LONG).show();

                        } else

                            Toast.makeText(getApplicationContext(), "not added", Toast.LENGTH_LONG).show();

                        dis = jsonObject.getString("message");
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                }


            },
            new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {

                    if (error instanceof TimeoutError || error instanceof NoConnectionError) {
                        Toast.makeText(MyMatchas.this,
                                "Error time out",
                                Toast.LENGTH_LONG).show();
                    } else if (error instanceof AuthFailureError) {
                        //TODO
                        Toast.makeText(MyMatchas.this,
                                "Auth Error time out",
                                Toast.LENGTH_LONG).show();
                    } else if (error instanceof ServerError) {
                        //TODO
                        Toast.makeText(MyMatchas.this,
                                "Server Error time out",
                                Toast.LENGTH_LONG).show();
                    } else if (error instanceof NetworkError) {
                        //TODO
                        Toast.makeText(MyMatchas.this,
                                " Network Error time out",
                                Toast.LENGTH_LONG).show();
                    } else if (error instanceof ParseError) {
                        Toast.makeText(MyMatchas.this,
                                "Parse Error time out",
                                Toast.LENGTH_LONG).show();
                        //TODO
                    }

                }
            }) {
        @Override
        protected Map<String, String> getParams() {
            JSONArray array=new JSONArray();

            JSONObject jsonObject=new JSONObject();
            for(i=0;i<arrayList.size();i++)
            {
                Log.v("fetching record:",arrayList.get(i).getId());
                arr[i]="dog_id"+arrayList.get(i).getId()+"dog_name"+arrayList.get(i).getDog_name()+"score"+arrayList.get(i).getDog_score()+"user_id"+ String.valueOf(SharedPrefManager.getInstance(MyMatchas.this).getUserid());
                try {
                    //Log.v("put in json:",arrayList.get(i).getId());
                    jsonObject.put("dog_id",arrayList.get(i).getId());
                    jsonObject.put("dog_name",arrayList.get(i).getDog_name());
                    jsonObject.put("score",arrayList.get(i).getDog_score());
                    jsonObject.put("user_id",String.valueOf(SharedPrefManager.getInstance(MyMatchas.this).getUserid()));

                } catch (JSONException e) {
                    Log.v("error exceptiion:",arrayList.get(i).getId());
                    e.printStackTrace();
                }
                array.put(jsonObject);
            }
            HashMap<String ,String> params=new HashMap<String, String>();
            Log.v("All data:",jsonObject.toString());
            Log.v("json object data:",array.toString());
            params.put("params",array.toString());

            return params;
        }
    };


    // Creating RequestQueue.
    RequestQueue requestQueue = Volley.newRequestQueue(MyMatchas.this);

    // Adding the StringRequest object into requestQueue.
    requestQueue.add(stringRequest);

    // }
  // Toast.makeText(getApplicationContext(),dis,Toast.LENGTH_LONG).show();

 }

Here is the Php script

   <?php
 $con=mysqli_connect("localhost","m","rt","Friend");

 if($_SERVER['REQUEST_METHOD']=='POST'){

$arr = $_POST['params'];





 $json = json_decode($arr,true);
    echo $json;
foreach($json as $obj){

$Sql_Query = "INSERT INTO Match_list (dog_id,score,dog_name,User_ID) values 
   ('$obj->dog_id','$obj->dog_name','$obj->score','$obj->user_id')";

   if($con->query($Sql_Query) === TRUE)
   {

    die(json_encode(array("success"=>1,"message"=>"Data Added 
 Successfuly")));



   }


      }


   }

  mysqli_close($con);
 ?>

Answer 1

You need to create new object for every time for holding new values

 JSONArray array = new JSONArray();
 JSONObject jsonObject;
 GettingVaccineData gettingVaccineData;
 for (int i = 0; i < vaccineData.size(); i++) {
   jsonObject = new JSONObject();
   gettingVaccineData = vaccineData.get(i);
   try {

     jsonObject.put("LCID", reqResponse);
     jsonObject.put("LVID", gettingVaccineData.getID());
     jsonObject.put("LVNAME", gettingVaccineData.getNAME());
     jsonObject.put("LSCHEDULE", scheduleDays.get(i));
     jsonObject.put("LGIVEN", "NULL");
     jsonObject.put("LSTATUS", "not given");
     jsonObject.put("LHOSPITAL", "NULL");


   } catch (JSONException e) {
     e.printStackTrace();
   }
   array.put(jsonObject);

Answer 2

您可以访问如下值：

echo $json[0]["dog_id"];