While String request the post params value getting null and shows the error
NetworkDispatcher.run: Unhandled exception java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
I have done debugging and one of the values is coming as null.
Here is my code,
public void getResponsePOST(Activity activity, final String[] name,
final String[] value) {
final CustomProgressBar pDialog = new CustomProgressBar(activity,R.drawable.loading);
//pDialog.setMessage("Loading...");
pDialog.show();
String tag_json_obj = "string_req";
System.out.println("URL PRODUCT"+mRequestUrl);
// RequestQueue queue = Volley.newRequestQueue(activity);
StringRequest sr = new StringRequest(Request.Method.POST, mRequestUrl,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
// Log.v("LOG", "9122014 " + response);
mResponseListener.responseSuccess(response.toString());
pDialog.dismiss();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
// Log.v("LOG", "9122014 " + error);
VolleyLog.d(TAG, "Error: " + error.getMessage());
mResponseListener.responseFailure(error.getMessage());
pDialog.dismiss();
}
}) {
#Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
for (int i = 0; i < name.length; i++) {
try
{
params.put(name[i], value[i]);
}
catch(Exception e)
{
}
//System.out.println("Names:"+name[i]);
//System.out.println("Values:"+value[i]);
}
return params;
}
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> params = new HashMap<String, String>();
params.put("Content-Type", "application/x-www-form-urlencoded");
return params;
}
};
//Setting Timout Parameter : Bibin
sr.setRetryPolicy(new DefaultRetryPolicy(1800 * 1000,DefaultRetryPolicy.DEFAULT_MAX_RETRIES , DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
// Adding request to request queue
AppController.getInstance().addToRequestQueue(sr, tag_json_obj);
}
How to solve this issue?
You have to try this one :-
try {
StringRequest stringRequest = new StringRequest(Request.Method.POST, URL,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
progressDialog.dismiss();
System.out.println("Response is : " + response);
try {
JSONObject jsonLogin = new JSONObject(response);
if (jsonLogin.getInt("status") == 1) {
} else {
Toast.makeText(getActivity(), jsonLogin.getString("MSG"), Toast.LENGTH_LONG).show();
}
} catch (Exception ex) {
System.out.println("EXCEPTION IN SUCCESS OF LOGIN REQUEST : " + ex.toString());
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
progressDialog.dismiss();
System.out.println("ERROR IN LOGIN STRING REQUEST : " + error.getMessage());
}
}) {
#Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
params.put("USERID", "US-485212391");
return params;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
requestQueue.add(stringRequest);
progressDialog = new ProgressDialog(getActivity());
progressDialog.setMessage("LoggingIn...");
progressDialog.show();
} catch (Exception ex) {
System.out.println(" Exception : " + ex);
}
Related
Hi I am using volley as JSON Parsing. I am using POST method and sending parameters in post request. I am getting following error when parsing the data, I am getting following error. I want to use volley. I have tried with JsonArrayRequest but it does not allow to send parameters as JSONObject,which I am using in my code.
org.json.JSONArray cannot be converted to JSONObject
Request is like
{
"city":"acd",
"user_id":"82",
"phone_number1":"1232131231",
"my_type":"asf"
}
Response is like
[{
"name":"dfdfd",
}]
Following is my code
private void Search_Refer() {
//initialize the progress dialog and show it
progressDialog = new ProgressDialog(SearchReferNameActivity.this);
progressDialog.setMessage("Please wait....");
progressDialog.show();
try {
JSONObject jsonBody = new JSONObject();
jsonBody.put("city", "acb");
jsonBody.put("user_id", "82");
jsonBody.put("phone_number1", "12332123231");
jsonBody.put("my_type", "asf");
JsonObjectRequest jsonOblect = new JsonObjectRequest(Request.Method.POST, Constants.BASE_URL1+"api/lab/search", jsonBody, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Toast.makeText(getApplicationContext(), response.toString(), Toast.LENGTH_LONG).show();
Log.e("Search EROOR", response.toString());
try {
JSONArray itemArray=new JSONArray(response);
dataModelArrayList = new ArrayList<>();
for (int i = 0; i < itemArray.length(); i++) {
SearchModel playerModel = new SearchModel();
JSONObject dataobj = itemArray.getJSONObject(i);
//playerModel.setProduct_name(dataobj.getString("name"));
playerModel.setRadiology_store_first_name(dataobj.getString("radiology_store_first_name"));
dataModelArrayList.add(playerModel);
}
} catch (JSONException e) {
e.printStackTrace();
}
progressDialog.dismiss();
/* Intent intent = new Intent(SearchReferNameActivity.this, SearchResult.class);
intent.putExtra("Search_result", dataModelArrayList);
startActivity(intent);*/
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getApplicationContext(), "Response: " + error.toString(), Toast.LENGTH_SHORT).show();
System.out.println("Search Eroor"+error.toString());
progressDialog.dismiss();
}
}){
#Override
public String getBodyContentType() {
return "application/json";
}
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<String, String>();
headers.put("Authorization", "Bearer "+deviceToken);
return headers;
}
};
jsonOblect.setRetryPolicy(new DefaultRetryPolicy(
10000,
DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
MyApplication.getInstance().addToRequestQueue(jsonOblect,"postrequest");
} catch (JSONException e) {
e.printStackTrace();
}
// Toast.makeText(getApplicationContext(), "done", Toast.LENGTH_LONG).show();
}
Use JsonArrayRequest or StringRequest in place of JsonObjectRequest
JsonArrayRequest
change the following response parameter to JSONArray
Instead of new Response.Listener<JSONObject> Use new Response.Listener<JSONArray>
// JSONArray insated of JSONObject
public void onResponse(JSONArray response) {
}
Use Below code
StringRequest stringRequest = new StringRequest(Request.Method.POST, "api/lab/search", new Response.Listener<String>() {
#Override
public void onResponse(String response) {
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
}) {
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<>();
params.put("city", "abcd");
params.put("user_id", "82");
params.put("phone_number1", "01235467895");
params.put("my_type", "asf");
return params;
}
};
I am using post method in volley. I searched and found that getHeader() is used to send header in request.The solution was to use JSONObject request instead of string request(which i am using currently) but is there a way of sending header through this method? Because in that case I will have to modify a lot of code in many classes. Sorry for the English, I am not a native speaker.
The request parameter is a json object. I am sending the parameters using following code.
mRequestQueue = Volley.newRequestQueue(getContext());
mStringRequest = new StringRequest(Request.Method.POST, url, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.d("Response", "onResponse: " + response);
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.i("This is the error", "Error :" + error.toString());
}
})
{
#Override
public String getBodyContentType() {
return "application/json";
}
#Override
public byte[] getBody() throws AuthFailureError {
HashMap<String, String> params2 = new HashMap<String, String>();
params2.put("AssigneeId",userid);
params2.put("IssueStatus", "5");
return new JSONObject(params2).toString().getBytes();
}
};
mRequestQueue.add(mStringRequest);
This request also has StringRequest. Please use the getHeaders() in this way:
public void requestWithSomeHttpHeaders() {
RequestQueue queue = Volley.newRequestQueue(this);
String url = "http://www.somewebsite.com";
StringRequest getRequest = new StringRequest(Request.Method.GET, url,
new Response.Listener<String>()
{
#Override
public void onResponse(String response) {
// response
Log.d("Response", response);
}
},
new Response.ErrorListener()
{
#Override
public void onErrorResponse(VolleyError error) {
// TODO Auto-generated method stub
Log.d("ERROR","error => "+error.toString());
}
}
) {
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> params = new HashMap<String, String>();
params.put("User-Agent", "Nintendo Gameboy");
params.put("Accept-Language", "fr");
return params;
}
};
queue.add(getRequest);
}
For JsonObjectRequest:
JsonObjectRequest req = new JsonObjectRequest(Request.Method.GET,url,
null, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Log.d(tag, response.toString());
activity.hideDialog();
try {
activity.onRequestServed(response, code);
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(tag, "Error: " + error.getMessage());
Log.e(tag, "Site Info Error: " + error.getMessage());
Toast.makeText(activity.getApplicationContext(),
error.getMessage(), Toast.LENGTH_SHORT).show();
activity.hideDialog();
try {
activity.onRequestServed(null,code);
} catch (JSONException e) {
e.printStackTrace();
}
}
}) {
/**
* Passing some request headers
*/
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<String, String>();
//headers.put("Content-Type", "application/json");
headers.put("key", "Value");
return headers;
}
};
I am calling SAP's oData Service using Volley API from Android and getting HTTP 403 Error for the Request.POST. But for the Request.GET for another Service program is working fine. May I know if there is any issue with my code calling oData Service.
Iam passing MYSAPSSO2 token and CSRF Token obtained from my first request call. But getting Authentication error. Any idea what is missing here?
Same oData POST service using JQUERY/SAPUI5 is working fine without any issues.
try {
/** json object parameter**/
JSONObject jsonObject = new JSONObject();
jsonObject.put("SO", so);
jsonObject.put("STATUS", status);
jsonObject.put("NET_VALUE", amount);
Log.i("XXXX", thisMethod+"jsonObject params"+ jsonObject.toString() + "");
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.GET, url, null, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject jsonRespObj) {
Log.i("XXXX", thisMethod+"Response from notification service: " + jsonRespObj.toString());
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError volleyError) {
Log.i("XXXXX", thisMethod+"Error Response: " + volleyError);
volleyError.printStackTrace();
}
}
) {
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> params = new HashMap<String, String>();
if (mysapsso2 != null) {
Log.i("XXX", thisMethod+"MYSAPSSO2 is : " + TokenHandler.getMYSAPSSO2Token());
Log.i("XXXX", thisMethod+"X-CSRF-Token is : " + TokenHandler.getCSRFToken());
params.put("Cookie", ServiceClass.mysapsso2);
params.put("X-CSRF-Token", TokenHandler.getCSRFToken());
params.put("contentType", "application/json");
}
return params;
}
};
queue.add(jsonObjectRequest);
} catch (JSONException e) {
Log.e("XXX", thisMethod+"There was an error => " + e.getMessage());
e.printStackTrace();
}
catch (Exception e) {
Log.e("XXXX", thisMethod+"There was an error => " + e.getMessage());
e.printStackTrace();
}
Use StringRequest insted of JsonObjectRequest. Get json encoded response to a string & create json object. Below code work fine for me. try it.
public void getPostJsonData() {
final String URL = "URL";
StringRequest stringRequest = new StringRequest(Request.Method.POST, URL,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONObject obj = new JSONObject(response);
JSONArray jsonArray = obj.getJSONArray("server_response");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject JO = jsonArray.getJSONObject(i);
fname = JO.getString("firstname"); //or JO.toString()
lname = JO.getString("lastname");
}
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(ActivityName.this, error.toString(), Toast.LENGTH_LONG).show();
}
}) {
#Override
protected Map<String, String> getParams() throws AuthFailureError {
HashMap<String, String> hashMap = new HashMap<String, String>();
hashMap.put("Cookie", ServiceClass.mysapsso2.toString);
hashMap.put("X-CSRF-Token", TokenHandler.getCSRFToken().toString);
hashMap.put("contentType", "application/json");
return hashMap;
}
};
final RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
requestQueue.addRequestFinishedListener(new RequestQueue.RequestFinishedListener<Object>() {
#Override
public void onRequestFinished(Request<Object> request) {
requestQueue.getCache().clear();
}
});
}
I'm using Volley to interact with an API. I need to send a post request with parameters to a service that returns a JSONArray.
I'm overriding the method protected Map<String, String> getParams() but it is not working:
JsonArrayRequest eventoReq = new JsonArrayRequest(Configuracion.URL_API_PROXIMOS_EVENTOS,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
Log.d(TAG, response.toString());
hidePDialog();
// Parsea json
for (int i = 0; i < response.length(); i++) {
try {
JSONObject obj = response.getJSONObject(i);
Evento evento = new Evento();
evento.setCod_evento(obj.getInt("cod_evento"));
evento.setTitulo(obj.getString("titulo"));
evento.setDescripcion(obj.getString("descripcion"));
evento.setDireccion(obj.getString("direccion"));
evento.setImagen(obj.getString("imagen"));
evento.setPuntuacion((float) obj.getDouble("puntuacion"));
// Añade el evento al listado
listaEventos.add(evento);
} catch (JSONException e) {
e.printStackTrace();
}
}
// Actualiza el adaptador
adapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
hidePDialog();
}
}){
#Override
protected Map<String, String> getParams() {
// Posting parameters to login url
Map<String, String> params = new HashMap<String, String>();
params.put("tag", "eventos_proximos_usuario");
params.put("cod_usuario", cod_usuario);
return params;
}
#Override
public int getMethod() {
return Method.POST;
}
};
// Añade la peticion a la cola
AppController.getInstance().addToRequestQueue(eventoReq);
Try ...
StringRequest instead..
Reference:
https://android.googlesource.com/platform/frameworks/volley/+/master/src/main/java/com/android/volley/toolbox
JsonObjectRequest extends JsonRequest
whereas StringRequest extends Request
StringRequest eventoReq = new StringRequest(Request.Method.POST,Configuracion.URL_API_PROXIMOS_EVENTOS,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.d(TAG, response.toString());
hidePDialog();
try{
JSONArray j= new JSONArray(response);
// Parsea json
for (int i = 0; i < j.length(); i++) {
try {
JSONObject obj = j.getJSONObject(i);
Evento evento = new Evento();
evento.setCod_evento(obj.getInt("cod_evento"));
evento.setTitulo(obj.getString("titulo"));
evento.setDescripcion(obj.getString("descripcion"));
evento.setDireccion(obj.getString("direccion"));
evento.setImagen(obj.getString("imagen"));
evento.setPuntuacion((float) obj.getDouble("puntuacion"));
// Añade el evento al listado
listaEventos.add(evento);
} catch (JSONException e) {
e.printStackTrace();
}
}
// Actualiza el adaptador
adapter.notifyDataSetChanged();
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
hidePDialog();
}
}){
#Override
protected Map<String, String> getParams() {
// Posting parameters to login url
Map<String, String> params = new HashMap<String, String>();
params.put("tag", "eventos_proximos_usuario");
params.put("cod_usuario", cod_usuario);
return params;
}
};
// Añade la peticion a la cola
AppController.getInstance().addToRequestQueue(eventoReq);
Me just a beginner hope it helps!!!
try like this,
I think you don't need to override the getMethod() method.
Pass the method type (i.e Method.POST) name with in the JsonObjectRequest or JsonArrayRequest like below.
JsonObjectRequest jsonObjReq = new JsonObjectRequest(Method.POST,
url, null,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Log.d(TAG, response.toString());
pDialog.hide();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
pDialog.hide();
}
}) {
#Override
protected Map<String, String> getParams() {
// Posting parameters to login url
Map<String, String> params = new HashMap<String, String>();
params.put("tag", "eventos_proximos_usuario");
params.put("cod_usuario", cod_usuario);
return params;
}
};
// Adding request to request queue
AppController.getInstance().addToRequestQueue(jsonObjReq, tag_json_obj);
I faced the same problem when I started to use Volley in my android project. I solved the problem by using StringRequest instead of JsonArrayRequest.
for example if you want to show a ListView with some server data...
Just use a simple StringRequest instead of JSONArrayRequest and implements the onResponse Methode like this :
public void onResponse(String response){
try{
JSONArray jsonArray=new JSONArray(response);
for(int i=0;i<jsonArray.length();i++) {
try {
JSONObject jsonObject = jsonArray.getJSONObject(i);
// do something
} catch (JSONException e) {
e.printStackTrace();
}
}
}catch (JSONException e2){
e2.printStackTrace();
}
}
}
StringRequest request = new StringRequest(Request.Method.POST, YourUrl, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
if (!response.equals(null)) {
Log.e("Your Array Response", response);
} else {
Log.e("Your Array Response", "Data Null");
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e("error is ", "" + error);
}
}) {
//This is for Headers If You Needed
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> params = new HashMap<String, String>();
params.put("Content-Type", "application/json; charset=UTF-8");
params.put("token", ACCESS_TOKEN);
return params;
}
//Pass Your Parameters here
#Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
params.put("User", UserName);
params.put("Pass", PassWord);
return params;
}
};
RequestQueue queue = Volley.newRequestQueue(getApplicationContext());
queue.add(request);
I am trying to send some data to the server using the Volley library.
private void registerUser(final String email, final String username,
final String password) {
// Tag used to cancel the request
String tag_string_req = "req_register";
pDialog.setMessage("Registering ...");
StringRequest strReq = new StringRequest(Method.POST,
AppConfig.URL_REGISTER, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.d(TAG, "Register Response: " + response.toString());
try {
JSONObject jObj = new JSONObject(response);
// String status = jObj.getString("status");
// User successfully stored in MySQL
// Now store the user in sqlite
String name = jObj.getString("username");
String email = jObj.getString("email");
String password = jObj.getString("password");
// String created_at = user
//.getString("created_at");
// Inserting row in users table
// db.addUser(name, email);
// Launch login activity
Intent intent = new Intent(
RegisterActivity.this,
LoginActivity.class);
startActivity(intent);
finish();
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Registration Error: " + error.getMessage());
Toast.makeText(getApplicationContext(),
error.getMessage(), Toast.LENGTH_LONG).show();
}
}) {
#Override
protected Map<String, String> getParams() {
// Posting params to register url
Map<String, String> params = new HashMap<String, String>();
params.put("email", email);
params.put("username", username);
params.put("password", password);
return params;
}
Unfortunately no json is sent and I get nothing back. Here is a sample of my logcat output. After sending a request successfully to the server, I want to get response with success/fail.
Register Response: ---- YOUR DATA ----
username=xxx&email=xxx%40gmail.com&password=xxxx&-------------------
05-05 14:56:55.002 2558-2558/app.victory.walking.thewalkingviktory
W/System.err﹕ org.json.JSONException: Value ---- of type java.lang.String
cannot be converted to JSONObject
05-05 14:56:55.002 2558-2558/app.victory.walking.thewalkingviktory
W/System.err﹕ at org.json.JSON.typeMismatch(JSON.java:111)
05-05 14:56:55.002 2558-2558/app.victory.walking.thewalkingviktory
W/System.err﹕ at org.json.JSONObject.<init>(JSONObject.java:160)
05-05 14:56:55.002 2558-2558/app.victory.walking.thewalkingviktory
W/System.err﹕ at org.json.JSONObject.<init>(JSONObject.java:173)
Any help please? Thanx.
private void postUsingVolley() {
String tag_json_obj = "json_obj_req";
final ProgressDialog pDialog = new ProgressDialog(this);
pDialog.setMessage("posting...");
pDialog.show();
final String mVendorId = DeviceDetails.getInstance(mContext).getVendor_id();
String mUserId = UserModel.getInstance(mContext).getUser_id();
final HashMap<String, String> postParams = new HashMap<String, String>();
sendFeedbackParams.put("key1", value1);
sendFeedbackParams.put("key2", value2);
sendFeedbackParams.put("key3", value3);
JsonObjectRequest jsonObjReq = new JsonObjectRequest(Request.Method.POST,
ApplicationData.POST_URL, new JSONObject(postParams),
new com.android.volley.Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
//Log.d("TAG", response.toString());
try {
//Toast.makeText(mContext, response.getString("message"), Toast.LENGTH_LONG).show();
Toast.makeText(mContext, "Thank you for your post", Toast.LENGTH_LONG).show();
if (response.getBoolean("status")) {
pDialog.dismiss();
finish();
}
} catch (JSONException e) {
Log.e("TAG", e.toString());
}
pDialog.dismiss();
}
}, new com.android.volley.Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
//VolleyLog.d("TAG", "Error: " + error.getMessage());
pDialog.dismiss();
if (isNetworkProblem(error)) {
Toast.makeText(mContext, "Internet Problem", Toast.LENGTH_SHORT).show();
}
}
}) {
#Override
public String getBodyContentType() {
return "application/json; charset=utf-8";
}
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
return getRequestHeaders();
}
};
jsonObjReq.setRetryPolicy(new DefaultRetryPolicy(8000, 0, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
// Adding request to request queue
AppController.getInstance().addToRequestQueue(jsonObjReq, tag_json_obj);
}
Use Volley like this,... It is working for me.
First of all you are not sending json to your server. You are sending parametrized url with post method and getting json text as response.
I think the problem is the response from the server which is supposedly json. But from your log, this text "---- YOUR DATA ----" which you get from Log.d(TAG, "Register Response: " + response.toString()); is not at all json formatted . So you need to modify your server to respond in correct json format.
This is the solution. I had to use the JsonObjectRequest class and not the StringRequest on. What JsonRequest does is that it converts your HashMap key-value pairs into a JSON Format.
private void registerUser(String email_address,String username, String
password) {
String tag_json_obj = "json_obj_req";
final ProgressDialog pDialog = new ProgressDialog(this);
pDialog.setMessage("posting...");
pDialog.show();
final String mVendorId =
DeviceDetails.getInstance(mContext).getVendor_id();
String mUserId = UserModel.getInstance(mContext).getUser_id();
String location = getResources().getConfiguration().locale.getCountry();
final HashMap<String, String> postParams = new HashMap<String, String>
();
postParams.put("username", username);
postParams.put("email", email_address);
postParams.put("password", password);
postParams.put("location", location);
Response.Listener<JSONObject> listener;
Response.ErrorListener errorListener;
final JSONObject jsonObject = new JSONObject(postParams);
JsonObjectRequest jsonObjReq = new
JsonObjectRequest(AppConfig.URL_REGISTER, jsonObject,
new com.android.volley.Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
//Log.d("TAG", response.toString());
try {
Toast.makeText(getApplicationContext(),
response.getString("message"), Toast.LENGTH_LONG).show();
// Toast.makeText(getApplicationContext(), "Thank
you for your post", Toast.LENGTH_LONG).show();
if (response.getString("status").equals("success")){
session.setLogin(true);
pDialog.dismiss();
Intent i = new
Intent(RegisterActivity.this,Welcome.class);
startActivity(i);
finish();
}
} catch (JSONException e) {
Log.e("TAG", e.toString());
}
pDialog.dismiss();
}
}, new com.android.volley.Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
//VolleyLog.d("TAG", "Error: " + error.getMessage());
pDialog.dismiss();
}
}) {
#Override
public String getBodyContentType() {
return "application/json; charset=utf-8";
}
};
// Adding request to request queue
AppController.getInstance().addToRequestQueue(jsonObjReq, tag_json_obj);
}
JSon post
public void makePostUsingVolley()
{
session = new SessionManager(getActivity().getApplicationContext());
session.checkLogin();
HashMap<String, String> user = session.getUserDetails();
final String token = user.get(SessionManager.KEY_NAME);
//Toast.makeText(getActivity().getApplicationContext(),name, Toast.LENGTH_SHORT).show();
final Map<String, String> params = new HashMap<String, String>();
//params.put("Employees",name);
String tag_json_obj = "json_obj_req";
String url = "enter your url";
final ProgressDialog pDialog = new ProgressDialog(getApplicationContext());
pDialog.setMessage("Loading...");
pDialog.show();
StringRequest req = new StringRequest(Request.Method.GET,url,
new Response.Listener<String>() {
// final JsonObjectRequest jsonObjReq = new JsonObjectRequest(Request.Method.GET,
//"http://emservices.azurewebsites.net/Employee.asmx/CheckUserGet", new Response.Listener<JSONObject>() {
#Override
public void onResponse(String response) {
JSONObject json;
// Toast.makeText(getActivity().getApplicationContext(),"dfgghfhfgjhgjghjuhj", Toast.LENGTH_SHORT).show();
//Toast.makeText(getActivity().getApplicationContext(),obb.length(), Toast.LENGTH_SHORT).show();
// JSONObject data=obj.getJSONObject("Employee_Name");
ObjectOutput out = null;
try {
json = new JSONObject(response);
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
}
pDialog.hide();
// Toast.makeText(getApplicationContext(),"hi", Toast.LENGTH_SHORT).show();
Log.d("", response);
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d("", "Error: " + error.getMessage());
Toast.makeText(getActivity().getApplicationContext(),
error.getMessage(), Toast.LENGTH_SHORT).show();
pDialog.hide();
// hide the progress dialog
}
}) {
#Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
params.put("username",name);
params.put("password",password);
return params;
}
};
// Adding request to request queue
AppController.getInstance().addToRequestQueue(req, tag_json_obj);
}
requestQueue= Volley.newRequestQueue(MainActivity.this);
StringRequest request=new StringRequest(Request.Method.PUT, url, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Toast.makeText(MainActivity.this, ""+response, Toast.LENGTH_SHORT).show();
Log.d("response",response);
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
}){
#Override
protected Map<String, String> getParams() throws AuthFailureError {
JSONObject jsonObject = new JSONObject();
try {
jsonObject.put("name", name.getText().toString().trim());
jsonObject.put("email", email.getText().toString().trim());
jsonObject.put("phone", phone.getText().toString().trim());
} catch (JSONException e) {
e.printStackTrace();
}
Map<String, String> params = new HashMap<String, String>();
params.put("message", jsonObject.toString());
return params;
}
};
requestQueue.add(request);
[["deep","dee#gmail.com","8888999999"]]