I created an ArrayList with the json values from an Rest API.
This is the code to read the Rest API:
#RestController
public class exemploclass {
#RequestMapping(value="/vectors")
//#Scheduled(fixedRate = 5000)
public ArrayList<StateVector> getStateVectors() throws Exception {
ArrayList<StateVector> vectors = new ArrayList<>();
String url = "https://opensky-network.org/api/states/all?lamin=41.1&lomin=6.1&lamax=43.1&lomax=8.1";
//String url = "https://opensky-network.org/api/states/all?lamin=45.8389&lomin=5.9962&lamax=47.8229&lomax=10.5226";
URL obj = new URL(url);
HttpURLConnection con = (HttpURLConnection) obj.openConnection();
// optional default is GET
con.setRequestMethod("GET");
//add request header
con.setRequestProperty("User-Agent", "Mozilla/5.0");
int responseCode = con.getResponseCode();
System.out.println("\nSending 'GET' request to URL : " + url);
System.out.println("Response Code : " + responseCode);
BufferedReader in = new BufferedReader(
new InputStreamReader(con.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
JSONObject myResponse = new JSONObject(response.toString());
JSONArray states = myResponse.getJSONArray("states");
System.out.println("result after Reading JSON Response");
for (int i = 0; i < states.length(); i++) {
JSONArray jsonVector = states.getJSONArray(i);
String icao24 = jsonVector.optString(0);
String callsign = jsonVector.optString(1);
String origin_country = jsonVector.optString(2);
Boolean on_ground = jsonVector.optBoolean(8);
//System.out.println("icao24: " + icao24 + "| callsign: " + callsign + "| origin_country: " + origin_country + "| on_ground: " + on_ground);
//System.out.println("\n");
StateVector sv = new StateVector(icao24, callsign, origin_country, on_ground);
vectors.add(sv);
}
System.out.println("Size of data: " + vectors.size());
return vectors;
}
}
The last line " return vectors;" returns a list with the values i parsed and returns it like this:
But i want this more "pretty", i want it to be one Array in each line, how can i achieve this?
P.S. Its on the .html page, not on console
Your return value seems a valid Json Object. If you want it more pretty so you can read it clearly then pass it through an application that makes that json pretty.
If you call your API from Postman, it will give you a pretty Json Object which will be better formatted. This will be because you have annotated your controller with #RestController so it will deliver an application/json response which Postman will know and then it will try to make it prettier.
P.S. Its on the .html page, not on console
So you hit your API from a browser. Most browsers don't expect a Json object to be returned, so they will not make it pretty. You can't force that from your Service either.
Just hit your API from Postman, it will understand it and make it pretty.
I've down Method GET with HttpClient, but i dont know how to get data with param (id) or by method POST, anyone help me.
this is a code GET with HttpClient i use before, hope method POST same it.
public async void getreponse()
{
var postrequest = (HttpWebRequest)WebRequest.Create("http://210.86.239.156/PIXA/app_truyenhay/api/list_story");
postrequest.Method = "GET";
postrequest.CookieContainer = new CookieContainer();
HttpWebResponse postresponse = (HttpWebResponse)await postrequest.GetResponseAsync();
string response = String.Empty;
if (postresponse != null)
{
var postResponseStream = postresponse.GetResponseStream();
var postStreamReader = new StreamReader(postResponseStream);
response = await postStreamReader.ReadToEndAsync();
}
ListStory liststory = Newtonsoft.Json.JsonConvert.DeserializeObject<ListStory>(response);
/*foreach (var blog in liststory.items)
blog.storyImage = "http://a.wattpad.com/cover/30539421-256-k910647.jpg";
//LBTruyen.ItemsSource = liststory.items; */
}
So i am working this project on Xamarin forms, and get the error as in title on
var rootObject = deserial.Deserialize<RootObject>(gameJson);
I am supposed to return the list of games to my app.How can i remove the error?
public async Task<Game[]> GetGamesAsync(){
var client = new RestClient("http://mystore/");
var request = new RestRequest ("api/Games", Method.GET);
request.OnBeforeDeserialization = resp => { resp.ContentType = "application/json"; };
var apiKey = session ["ApiKey"];
var userId = session ["UserId"];
try
{
request.AddHeader ("authenticationkey",apiKey.ToString ());
request.AddHeader ("authenticationid",userId.ToString ());
}
catch{}
IRestResponse response = client.Execute (request);
statusCodeCheck (response);
var gameJson = response.Content;
if (response.StatusCode == HttpStatusCode.OK) {
RestSharp.Deserializers.JsonDeserializer deserial = new RestSharp.Deserializers.JsonDeserializer ();
var rootObject = deserial.Deserialize<RootObject>(gameJson);
return rootObject.games;
}
else if(response.StatusCode == HttpStatusCode.Forbidden){
return null;
}
}
Not sure you are looking for this but I also using Restsharp in portable library and I'm deserializing datacontracts with Json.NET's JsonConvert.DeserializeObject<T>
method. I have not encountered any problem with it yet.
Also another possible solution is that the returned data is wrapped and the main object is not the RootObject.
I'm new to windows phone 8 development.
Could you please help me how to send the xml data to the server through http post calls in windows phone 8?
Thanks
This is a sample code I used in my project. Modify according to your needs
HttpWebRequest req = (HttpWebRequest)WebRequest.Create("url to submit to");
req.Method = "POST";
//Add a Header something like this
//req.Headers["SOAPAction"] = "http://asp.net/ApplicationServices/v200/AuthenticationService/Login";
req.ContentType = "text/xml; charset=utf-8";
//req.UserAgent = "PHP-SOAP/5.2.6";
string xmlData = #"<?xml version=""1.0"" encoding=""UTF-8""?>Your xml data";
// Convert the string into a byte array.
byte[] byteArray = Encoding.UTF8.GetBytes(xmlData);
req.Headers[HttpRequestHeader.ContentLength] = byteArray.Length.ToString();
req.BeginGetRequestStream(ar =>
{
using (var requestStream = req.EndGetRequestStream(ar))
{
// Write the body of your request here
requestStream.Write(byteArray, 0, xmlData.Length);
}
req.BeginGetResponse(a =>
{
try
{
var response = req.EndGetResponse(a);
var responseStream = response.GetResponseStream();
using (var streamRead = new StreamReader(responseStream))
{
// Parse the response message here
string responseString = streamRead.ReadToEnd();
//If response is also XML document, parse it like this
XDocument xdoc = XDocument.Parse(responseString);
string result = xdoc.Root.Value;
if (result == "true")
{
//Do something here
}
else
Dispatcher.BeginInvoke(() =>
{
//result failed
MessageBox.Show("Some error msg");
});
}
}
catch (Exception ex)
{
Dispatcher.BeginInvoke(() =>
{
//if any unexpected exception occurs, show the exception message
MessageBox.Show(ex.Message);
});
}
}, null);
}, null);
I want to know the best way to send a small json string/ data to a web service. I can use WebClient or httpwebrequest that's not the issue, but i am mainly concerned about how to convert the string into json format and post with the request.
As suggested , here i am using json.net , following is the code :
Uri url = new Uri("http://example.com");
//Create the web request object
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(url);
webRequest.Method = "POST";
webRequest.ContentType = "application/json";
// Start the request
webRequest.BeginGetRequestStream(new AsyncCallback(GetRequestStreamCallback), webRequest);
void GetRequestStreamCallback(IAsyncResult asynchronousResult)
{
HttpWebRequest webRequest = (HttpWebRequest)asynchronousResult.AsyncState;
// End the stream request operation
Stream postStream = webRequest.EndGetRequestStream(asynchronousResult);
//
JObject json =
new JObject(
new JProperty("customer", new JObject
(
new JProperty("phoneNumber", "07700555555"),
new JProperty("name", "John")
))
,
new JProperty("pickupAddress", new JObject
(
new JProperty("street", "1 Seagull Lane"),
new JProperty("city", "London"),
new JProperty("county", "London"),
new JProperty("postcode", "E000XX"),
new JProperty("country", "England"),
new JProperty("longitude", "10.18"),
new JProperty("latitude", "12.214")
))
,
new JProperty("destinationAddress", new JObject
(
new JProperty("county", "London"),
new JProperty("street", "1 Snow Lane"),
new JProperty("longitude", "1.79"),
new JProperty("latitude", "1.294"),
new JProperty("postcode", "E00XX"),
new JProperty("country", "England"),
new JProperty("city", "London")
))
,
new JProperty("pickupTime", "1311467121460"),
new JProperty("notes", "some notes"),
new JProperty("accountNumber", "account1"),
new JProperty("accountPassword", "account password")
);
//
// Create the post data
// Demo POST data
//byte[] byteArray = Encoding.UTF8.GetBytes(json.ToString());
//byte[] byteArray = Encoding.UTF8.GetBytes("1233456");
//
JsonSerializer serializer = new JsonSerializer();
serializer.NullValueHandling = NullValueHandling.Ignore;
using (StreamWriter sw = new StreamWriter(postStream))
using (JsonWriter writer = new JsonTextWriter(sw))
{
//serializer.Serialize(writer, JsonConvert.SerializeObject(json));
json.WriteTo(writer,null);
}
//
// Add the post data to the web request
//postStream.Write(byteArray, 0, byteArray.Length);
postStream.Close();
// Start the web request
webRequest.BeginGetResponse(new AsyncCallback(GetResponseCallback), webRequest);
}
void GetResponseCallback(IAsyncResult asynchronousResult)
{
try
{
HttpWebRequest webRequest = (HttpWebRequest)asynchronousResult.AsyncState;
HttpWebResponse response;
// End the get response operation
response = (HttpWebResponse)webRequest.EndGetResponse(asynchronousResult);
Stream streamResponse = response.GetResponseStream();
StreamReader streamReader = new StreamReader(streamResponse);
var Response = streamReader.ReadToEnd();
MessageBox.Show(Response);
streamResponse.Close();
streamReader.Close();
response.Close();
}
catch (WebException e)
{
// Error treatment
// ...
}
}
Now the code seems to be ok , json data is created ok , but response from server is showing : "the server response e = {"The remote server returned an error: NotFound."}"
I don't know what's going wrong , please help friends ! Some one told me that i have to add something in header of the request i.e. The header should show: booking = {...JSON...}
You could use the built in DataContractJsonSerializer Class.
Alternatively, you may get better performance with json.net.