Google Places API에서 JSON을 역 직렬화하려고합니다. 내 사용자 정의 클래스는 다음과 같이 설정되며 내 코드는 다음과 같습니다. 내 프로그램을 실행할 때 오류가 발생하지 않지만 내 장소 개체가 null입니다.
class PlacesDictionary
{
public void placesDictionary()
{ }
public Places GetPlaces()
{
Places places = new Places();
string apiKey = "I have an apiKey";
string googleUrl;
googleUrl = "https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=43.038902,-87.906474&radius=500&type=restaurant&name=cruise&key=" + apiKey;
WebRequest request = WebRequest.Create(googleUrl);
request.Method = "GET";
request.ContentType = "application/x-www-form-urlencoded";
WebResponse response = request.GetResponse();
Console.WriteLine(((HttpWebResponse)response).StatusDescription);
Stream dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
string responseFromServer = reader.ReadToEnd();
places = JsonConvert.DeserializeObject<Places>(responseFromServer);
Console.WriteLine(responseFromServer);
Console.ReadLine();
reader.Close();
dataStream.Close();
response.Close();
return places;
}
}
public class Places
{
public List<Place> places { get; set; }
public class Place
{
public Geometry geometry { get; set; }
public string icon { get; set; }
public string id { get; set; }
public string name { get; set; }
public OpeningHours opening_hours { get; set; }
public List<Photo> photos { get; set; }
public string place_id { get; set; }
public int price_level { get; set; }
public double rating { get; set; }
public string reference { get; set; }
public string scope { get; set; }
public List<string> types { get; set; }
public string vicinity { get; set; }
public class Location
{
public double lat { get; set; }
public double lng { get; set; }
}
public class Northeast
{
public double lat { get; set; }
public double lng { get; set; }
}
public class Southwest
{
public double lat { get; set; }
public double lng { get; set; }
}
public class Viewport
{
public Northeast northeast { get; set; }
public Southwest southwest { get; set; }
}
public class Geometry
{
public Location location { get; set; }
public Viewport viewport { get; set; }
}
public class OpeningHours
{
public bool open_now { get; set; }
public List<object> weekday_text { get; set; }
}
public class Photo
{
public int height { get; set; }
public List<string> html_attributions { get; set; }
public string photo_reference { get; set; }
public int width { get; set; }
}
}
}
나는 당신이 사용해야한다고 생각합니다
List<Place> places = JsonConvert.DeserializeObject<List<Place>>(responseFromServer);
대신에
places = JsonConvert.DeserializeObject<Places>(responseFromServer);
그리고 다음 줄을 제거하는 것을 잊지 마십시오
Places places = new Places();
편집 : 전체 답변
static void Main(string[] args)
{
string apiKey = "your api key";
string googleUrl = "https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=43.038902,-87.906474&radius=500&type=restaurant&name=cruise&key=" + apiKey;
WebRequest request = WebRequest.Create(googleUrl);
request.Method = "GET";
request.ContentType = "application/x-www-form-urlencoded";
WebResponse response = request.GetResponse();
Console.WriteLine(((HttpWebResponse)response).StatusDescription);
Stream dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
string responseFromServer = reader.ReadToEnd();
//StreamWriter wr = new StreamWriter("json.txt");
//wr.WriteLine(responseFromServer);
//wr.Flush();
//To see what it is inside json
Result results = JsonConvert.DeserializeObject<Result>(responseFromServer);
Console.WriteLine(responseFromServer);
Console.ReadLine();
reader.Close();
dataStream.Close();
response.Close();
}
}
public class Result
{
public List<HTMLAttribution> html_attributions { get; set; }
public string next_page_token { get; set; }
public List<Place> results { get; set; }
public string status { get; set; }
//Definations of Classes
public class HTMLAttribution { } //I don't what it is. It is empty for your url.
public class Place
{
public Geometry geometry { get; set; }
public string icon { get; set; }
public string id { get; set; }
public string name { get; set; }
public OpeningHours opening_hours { get; set; }
public List<Photo> photos { get; set; }
public string place_id { get; set; }
public int price_level { get; set; }
public double rating { get; set; }
public string reference { get; set; }
public string scope { get; set; }
public List<string> types { get; set; }
public string vicinity { get; set; }
public class Geometry
{
public Location location { get; set; }
public Viewport viewport { get; set; }
}
public class Location
{
public double lat { get; set; }
public double lng { get; set; }
}
public class Viewport
{
public Northeast northeast { get; set; }
public Southwest southwest { get; set; }
}
public class Northeast
{
public double lat { get; set; }
public double lng { get; set; }
}
public class Southwest
{
public double lat { get; set; }
public double lng { get; set; }
}
public class OpeningHours
{
public bool open_now { get; set; }
public List<object> weekday_text { get; set; }
}
public class Photo
{
public int height { get; set; }
public List<string> html_attributions { get; set; }
public string photo_reference { get; set; }
public int width { get; set; }
}
}
}
이 기사는 인터넷에서 수집됩니다. 재 인쇄 할 때 출처를 알려주십시오.
침해가 발생한 경우 연락 주시기 바랍니다[email protected] 삭제
몇 마디 만하겠습니다