I am trying send data to server using Volley library but it gives me an error
"end of input at character 0 of "
and here is my code
public void postPrams(View view) {
String tag_json_obj = "json_obj_req";
String url = "http://Urlhere.com/register.php";
final ProgressDialog pDialog = new ProgressDialog(this);
pDialog.setMessage("Loading...");
pDialog.show();
JsonObjectRequest jsonObjReq = new JsonObjectRequest(Request.Method.POST,
url, null,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
text.setText("done Post : "+response);
pDialog.hide();
Toast.makeText(getApplication(),"Done",Toast.LENGTH_LONG).show();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d("erorr", "Error: " + error.getMessage());
Toast.makeText(getApplication(),error.getMessage().toString(),Toast.LENGTH_LONG).show();
pDialog.hide();
}
}) {
#Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
params.put("first_name","Anwar");
params.put("last_name","Samir");
params.put("age", "1000");
params.put("country", "egypt");
params.put("city","le");
params.put("street", "10sq");
params.put("mobile_no", "0100000");
params.put("login_name", "Asi");
params.put("password", "123qwe");
return params;
}
};
AppController.getInstance().addToRequestQueue(jsonObjReq, tag_json_obj);
}
Please help me why this is happening.
Have a look at Volley's source
public JsonObjectRequest(int method, String url, JSONObject jsonRequest,Listener<JSONObject> listener, ErrorListener errorListener)
You're passing null in the place of jsonRequest meaning that in fact you are not passing any data with the POST request. Hence the error: "end of input at character 0 of. Try changing your code to
public void postPrams(View view) {
String tag_json_obj = "json_obj_req";
String url = "http://Urlhere.com/register.php";
final ProgressDialog pDialog = new ProgressDialog(this);
pDialog.setMessage("Loading...");
pDialog.show();
JsonObjectRequest jsonObjReq = new JsonObjectRequest(Request.Method.POST,
url, getParams(),
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
text.setText("done Post : "+response);
pDialog.hide();
Toast.makeText(getApplication(),"Done",Toast.LENGTH_LONG).show();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d("erorr", "Error: " + error.getMessage());
Toast.makeText(getApplication(),error.getMessage().toString(),Toast.LENGTH_LONG).show();
pDialog.hide();
}
});
AppController.getInstance().addToRequestQueue(jsonObjReq, tag_json_obj);
}
private JSONObject getParams(){
JSONObject params = new JSONObject();
params.put("first_name","Anwar");
params.put("last_name","Samir");
params.put("age", "1000");
params.put("country", "egypt");
params.put("city","le");
params.put("street", "10sq");
params.put("mobile_no", "0100000");
params.put("login_name", "Asi");
params.put("password", "123qwe");
return params;
}
Look a the request method. Post or get?? Are you returning a vallue? or blank?.
In you server side try to do echo to parameters.
JSONObject params = new JSONObject();
params.put("first_name","Anwar");
params.put("last_name","Samir");
params.put("age", "1000");
params.put("country", "egypt");
params.put("city","le");
params.put("street", "10sq");
params.put("mobile_no", "0100000");
params.put("login_name", "Asi");
params.put("password", "123qwe");
replace null with params. You are not able to receive at server side since you are not sending any body.The Map in which you placed your params is for headers not the body.You have to send the body in
JsonObjectRequest request = newJsonObjectRequest(method,url,body,listener){
....headers here
};
try this
public void postDataVolley(Context context,String url,JSONObject sendObj){
try {
RequestQueue queue = Volley.newRequestQueue(context);
JsonObjectRequest jsonObj = new JsonObjectRequest(url,sendObj, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Log.d("Volley", "Volley JSON post" + response);
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.d("Volley", "Volley JSON post" + "That didn't work!");
}
});
queue.add(jsonObj);
}catch(Exception e){
}
}
Related
I am trying to send json data to a url in the format below.
{
“amount”:500,
“merchant_id”:”104”,
“narrative”:”John”,
“reference”:”Steven”
}
To send data to the url, one needs an authorization key as the header, I have already figured out how to set the authorization key as the header in Params, as shown below
#Override
public Map<String,String >getHeaders()throws AuthFailureError{
Map<String,String >params=new HashMap<String,String>();
params.put(“Content-Type”, “text/jsom;);
params.put(“AuthKey”, Auth);
return params;
but I do not know how to send the data in the particular format shown in the first instance to the url using params with volley. Please help, I am quite new to using Volley library .
This is the rest of code I am currently using it however does not return any response except for an invalid json error. Meaning the format sent is not corresponding to the one desired.
StringRequest stringRequest=new StringRequest(Request.Method.POST, url, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Toast.makeText(Main9Activity.this, response, Toast.LENGTH_LONG).show();
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(Main9Activity.this, error.toString(), Toast.LENGTH_LONG).show();
}
}){
#Override
protected Map<String, String> getParams() {
HashMap<String, String> params = new HashMap<String, String>();
params.put("amount","500");
params.put("merchant_id", "104");
params.put("narrative","John");
params.put("reference", "Steven");
return params;
}
#Override public Map<String,String>getHeaders()throws AuthFailureError{
Map<String,String>headers=new HashMap<>();
params.put("Content-Type","text/json");
params.put("Authorization",Auth);
return params;
}
};
RequestQueue requestQueue=Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
You can refer below code snipet to post data with custom header in volley.
JSONObject jsonobject = new JSONObject();
jsonobject.put("amount", "500");
jsonobject.put("merchant_id", "104");
jsonobject.put("narrative", "John");
jsonobject.put("reference", "Steven");
JsonObjectRequest jsonObjReq = new JsonObjectRequest(
Request.Method.POST,url, jsonobject,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Log.d(TAG, response.toString());
Toast.makeText(Main9Activity.this, response.toString(), Toast.LENGTH_SHORT).show();
hideProgressDialog();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
Toast.makeText(Main9Activity.this, error.getMessage(), Toast.LENGTH_SHORT).show();
hideProgressDialog();
}
}) {
/**
* Passing some request headers
* */
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String,String >headers=new HashMap<String,String>();
headers.put(“Content-Type”, “application/json“);
headers.put(“AuthKey”, Auth);
return headers;
}
You can send as below:
The data you want to send:
Hashmap<String, Object> data = new HashMap<>();
data.put("amount", "500");
data.put("merchant_id", "104");
data.put("narrative", "John");
data.put("reference", "Steven");
RequestQueue request = Volley.newRequestQueue(context);
JsonObjectRequest jsonobj = new JsonObjectRequest(Request.Method.POST, "your url",new JSONObject(data),
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
}
){
};
request.add(jsonobj);
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 want to know how to send volley login request if the login request url is
username:password http://login_url
in this format. It would be a great help if a sample code is available.
the purpose is to send login request to a django framework based website.
Thanks in advance
first create a string request ->>
StringRequest stringRequest = new StringRequest(Request.Method.POST, REGISTER_URL,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Toast.makeText(MainActivity.this,response,Toast.LENGTH_LONG).show();
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(MainActivity.this,error.toString(),Toast.LENGTH_LONG).show();
}
});
then, you should override the getParams() method!
#Override
protected Map<String,String> getParams(){
Map<String,String> params = new HashMap<String, String>();
params.put(KEY_USERNAME,username);
params.put(KEY_PASSWORD,password);
params.put(KEY_EMAIL, email);
return params;
add the request to request queue!
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
three easy steps :)
feel free to ask any doubts
try this
// Tag used to cancel the request
String tag_json_obj = "json_obj_req";
String url = "http:login_url";
ProgressDialog pDialog = new ProgressDialog(this);
pDialog.setMessage("Loading...");
pDialog.show();
JsonObjectRequest jsonObjReq = new JsonObjectRequest(Method.POST,
url, null,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
//your 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() {
Map<String, String> params = new HashMap<String, String>();
params.put("name", "username");
params.put("email", "abc#dffg.info");
params.put("password", "password123");
return params;
}
};
// Adding request to request queue
AppController.getInstance().addToRequestQueue(jsonObjReq, tag_json_obj);
I am using android volley library to post data to back-end service. But I can't send any parameter with my request. I have done each and everything mentioned here . But none works for me. The post method that I am using is:
public static void post()
{
// Tag used to cancel the request
String tag_json_obj = "json_obj_req";
String url = "http://myUrl";
JsonObjectRequest jsonObjReq = new JsonObjectRequest(Request.Method.POST,
url, obj,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Log.d("TAG", response.toString());
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d("TAG", "Error: " + error.getMessage());
}
}) {
/**
* Passing some request headers
* */
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<String, String>();
return headers;
}
#Override
public String getBodyContentType() {
return "application/x-www-form-urlencoded";
}
#Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
params.put("key", "value");
return params;
}
};
// Adding request to request queue
AppController.getInstance().addToRequestQueue(jsonObjReq, tag_json_obj);
}
Always the response is "parameter missing".
How could i resolve this issue?
If you're using JSONObjectRequest, you can try this.
String url = "http://myurl";
Map<String, String> params = new HashMap<String, String>();
params.put("key", value);
RequestQueue queue = Volley.newRequestQueue(getActivity());
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.POST,
url, new JSONObject(params),
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject jsonObject) {
try {
success = jsonObject.getInt("success");
message = jsonObject.getString("message");
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError volleyError) {
Activity activity = getActivity();
if (volleyError instanceof NoConnectionError) {
String errormsg = "Check your internet connection";
Toast.makeText(activity, errormsg, Toast.LENGTH_LONG).show();
}
}
});
queue.add(jsonObjectRequest);
The codes are more likely the same as yours. Check on the lines where I put the data to be posted. I'm very sure this would work!
The problem is you are approaching the request as though you were making a stringRequest. The link you reference is talking specifically about making a stringRequest.
jsonObjectRequest actually lets you put the json object into the constructor itself, instead of using the override method getParams() like so:
String url = "some_url";
JSONObject jsonObject = new JSONObject();
try {
jsonObject.put(Constants.LOGIN_EMAIL_ID, email);
jsonObject.put(Constants.LOGIN_PASSWORD, password);
}catch(JSONException e){
Log.d("JSON error", e.getMessage(), e);
}
JsonObjectRequest jsObjRequest = new JsonObjectRequest(url, jsonObject, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Log.d("RESPONSE", response.toString());
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
if(error.getMessage()!=null){
Log.d("RESPONSE", error.getMessage());
}
}
});
VolleySingleton.getInstance(activity).getRequestQueue().add(jsObjRequest);
I have to make a json post request with the following parameters.
{"method":"login","data":{"username":"korea","password":"123456"}}
I use volley to make post request and follwoing is my code to do post request.
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.POST, loginURL, null,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Toast.makeText(mContext,response.toString(),Toast.LENGTH_SHORT).show();
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e("Volley", "Error");
}
}
){
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String,String> map = new HashMap<String,String>();
map.put("method","login");
map.put("username","korea");
map.put("password","123456");
return map;
}
};
requestQueue.add(jsonObjectRequest);
requestQueue.start();
Im getting error response from server. How to get proper response from server?
Change Request.Method.GET to Request.Method.POST. Then pass a JSONObject as the third parameter where you currently have null;
For example:
JSONObject data = new JSONObject();
data.put("username","korea");
data.put("password","123456");
JSONObject jsonObject = new JSONObject();
jsonObject.put("method","login");
jsonObject.put("data",data);
JsonObjectRequest request = new JsonObjectRequest(Request.Method.POST, loginURL, jsonObject, responseListener, errorListener);
I use volley to make post request and follwoing is my code to do post request
That is not a POST request, AFAICT. You are using Request.Method.GET.
Use following method to post the data to server
public void postDataVolley(Context context,String url,JSONObject sendObj){
try {
RequestQueue queue = Volley.newRequestQueue(context);
JsonObjectRequest jsonObj = new JsonObjectRequest(url,sendObj, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Log.d("Volley", "Volley JSON post" + response);
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.d("Volley", "Volley JSON post" + "That didn't work!");
}
});
queue.add(jsonObj);
}catch(Exception e){
}
}