jsonexception

问题 I'm trying to send arraylist containing numbers as parameter in volley request and then parse it and display the values (in string) in toast. But I'm getting null in response. I would like to know where is the problem. json response: { "got_members": [ "1", "2" ] } public class SearchFragment extends Fragment{ Button checkme; private static final String ADDMEM = "http://www.example.com/api/event/addmembers/", KEY_ADDMEM = "adding_members"; @Nullable @Override public View onCreateView

问题 I'm trying to develop an application using .NET Core 3 and EF Core. I encountered an error that I could not find a solution for. I could not do on ".Net Core 3" a structure which can be simply created with PHP eloquent. Model; public NDEntityContext(DbContextOptions<NDEntityContext> options) : base(options) { } public DbSet<User> Users { get; set; } public DbSet<Order> Orders { get; set; } protected override void OnModelCreating(ModelBuilder modelBuilder) { modelBuilder.Entity<User>(entity =>

问题 I am working on an Android application. In my app I have to convert a string to Json Object, then parse the values. I checked for a solution in stackoverflow and found similar issue here link The solution is like this `{"phonetype":"N95","cat":"WP"}` JSONObject jsonObj = new JSONObject("{\"phonetype\":\"N95\",\"cat\":\"WP\"}"); I use the same way in my code . My string is {"ApiInfo":{"description":"userDetails","status":"success"},"userDetails":{"Name":"somename","userName":"value"},

问题 I know that there are many posts about this particular error, but none of them are solving my issue and I am new to Android development. As a result of this error, I am unable to see the data in a listView for an app. The following is my code: public class JSONBuilderActivity extends ListActivity { private ProgressDialog pDialog; //URL to get JSON private static String url = "http://""; //JSON Node names private static final String TAG_CARS = "cars"; //root private static final String TAG

问题 org.json.JSONException: Value NeededTypes of type java.lang.String cannot be converted to JSONArray i got this error when i am trying get JSONArray neededTypesArray if u have any ideas how to fix it, i will be very gratefull! here is my jsonString: [ {"NeededTypes": [{"DonationTypeId":1}, {"DonationTypeId":2}], "FirstName":"Катерина", "MiddleName":null, "LastName":"Дяченко", "DateOfBirth":"2002-05-07T00:00:00", "DateOfDead":null, "DonorCenterId":13, "PhotoImage":"http://donorua.blob.core

问题 Can anyone explain how to show multiple markers on google maps in android using the following JSON code? [ {"id":"1","lat":"18.105917","lng":"78.838325","location":" Laxmi Filling Station( Medak Road)","distance":"0"}, {"id":"3","lat":"18.105952","lng":"78.840366","location":"Fathima Filling Station (Medak Road)","distance":"0.1340667689594937"}, {"id":"13","lat":"18.093713","lng":"78.843775","location":"Thirumala Thirupathi Filling Station (Ensanpally Road)","distance":"0.9160924683870764"},

问题 I am parsing json using volley but its not working and getting error. Follwing is my code and json reponse. please help me to solve this private void getStaffList() { showpDialog(); RequestQueue requestQueue = Volley.newRequestQueue(this); final String url = "url"; try { final JSONObject jsonObj = new JSONObject(); jsonObj.put("username", "test"); jsonObj.put("password", "123456"); JsonObjectRequest jsonObjReq = new JsonObjectRequest(Request.Method.POST, url, jsonObj, new Response.Listener

问题 I have a JSON which looks like this: { "notifications": { "0": { "id": "27429", "uID": "6967", "text": "Text 1" }, "1": { "id": "27317", "uID": "6967", "text": "Text 2" }, "2": { "id": "27315", "uID": "6967", "text": "Text 3" }, "3": { "id": "27314", "uID": "6967", "text": "Text 4" }, "4": { "id": "27312", "uID": "6967", "text": "Text 5" } } } I'm taking out "text" string from the response, for this my code looks like this: JSONObject rootObj = new JSONObject(result); JSONObject jSearchData =

问题 With the Volley libraries, I extended the Request object to implement GSON serialization. I then extended that new object for how I want to do some of my PUT requests. This is the first object for the GSON serialization: @Override protected Response<t> parseNetworkResponse(NetworkResponse response) { try { String jsonString = new String(response.data, HttpHeaderParser.parseCharset(response.headers)); //response may be too large for string? t parsedGSON = mGson.fromJson(jsonString, cls);

问题 In some of my applications that talk to a server and get a response using http I use json to format the data server side and when it gets to the device I use something similar to this code which I found on stackoverflow: private class LoadData extends AsyncTask<Void, Void, String> { private JSONArray jArray; private String result = null; private InputStream is = null; private String entered_food_name=choice.getText().toString().trim(); protected void onPreExecute() { } @Override protected