我正在嘗試從API發送響應作爲JSON。目前,我們正在多次調用其他Web服務,並將所有響應作爲JSON發送。被調用的Web服務將響應作爲JSON返回。以下是我在做什麼以JSON格式返回Web API響應
List<Models.DTO.RootObject> i_response = new List<Models.TO.RootObject>();
public async Task<IHttpActionResult> Get()
{
.....
foreach (int req_id in reqIdLst)
{
using (var client_request = new HttpClient())
{
string request_Uri = BaseURL_iLab;
Uri uri_request = new Uri(request_Uri);
client_request.BaseAddress = uri_request;
client_request.DefaultRequestHeaders.Accept.Clear();
client_request.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
client_request.DefaultRequestHeaders.Add("Authorization", "Bearer " + accessToken);
var request_response = await client_request.GetAsync(uri_request);
var responsefile = await request_response.Content.ReadAsStringAsync();
var request_returnDataObj = JsonConvert.DeserializeObject<Models.DTO.RootObject>(responsefile);
i_response.Add(request_returnDataObj);
}}
return Ok(i_response);
}}
但作爲
<Error>
<Message>An error has occurred.</Message>
<ExceptionMessage>
The 'ObjectContent`1' type failed to serialize the response body for content
type 'application/xml; charset=utf-8'.
</ExceptionMessage>
<ExceptionType>System.InvalidOperationException</ExceptionType>
<StackTrace/>
<InnerException>
調試時,我不知道如何發送的JSON而不是XML我上面的代碼拋出錯誤。
除了沒有序列化爲json,似乎你在你的模型中有循環引用:https://stackoverflow.com/questions/23098191/failed-to-serialize-the-response-in-web-api-with- json。在web api中,根據你的客戶端有一個內容協商過程來返回預期的格式,你不應該在這裏硬編碼你的json格式。 –
你確定你不是試圖反序列化一個錯誤?什麼是返回的http狀態碼? –
@PeterBons http狀態碼是200.但拋出上述錯誤 – xyz