I am using Volley to transfer the data between Android device and web server.
I found a issue about sending a list of data to the server.
For example, my class will generate the data set like this:
{ "1": { "1_aID": "5", "2_aID": "5", "3_aID": "5", "4_aID": "5" }, "2": { "1_bID": "3", "2_bID": "3", "3_bID": "3" }, "3": { "1_cID": "4" } } How can i send those data to Server?
I found some tutorial of Post data to server. It must using hashmap. Any better solution to handle this case?
POST/GET, url, response & error listener. And For sending your json override getBody() method in which pass the json you want to send.RequestQueue & add the request to it. You might start it by calling start()Try this :
// Instantiate the RequestQueue. RequestQueue queue = Volley.newRequestQueue(this); String url ="http://www.google.com"; // Request a string response from the provided URL. StringRequest stringRequest = new StringRequest(Request.Method.POST, url, new Response.Listener<String>() { @Override public void onResponse(String response) { // your response } }, new Response.ErrorListener() { @Override public void onErrorResponse(VolleyError error) { // error } }){ @Override public byte[] getBody() throws AuthFailureError { String your_string_json = ; // put your json return your_string_json.getBytes(); } }; // Add the request to the RequestQueue. queue.add(stringRequest); requestQueue.start(); For more info see this
php://input and not in $_REQUEST . Obtain it like $obj = json_decode(file_get_contents("php://input"));Try this
JSONObject rootObj = new JSONObject(); JSONObject oneObject = new JSONObject(); oneObject.put("1_aID","5"); ... ... JSONObject threeObject = new JSONObject(); oneObject.put("1_cID","4"); rootObj("1",oneObject); ... ... rootObj("3",threeObject); new JsonObjectRequest(Request.Method.POST, url, rootObj.toString(), responselistner, errorlistner); 