PostAsJsonAsync返回500内部错误

Question

我一直在寻找解决方案几个小时，但找不到我的问题的答案。 我想将post方法发送到网络api，并且我首先在邮递员上使用这些json内容进行了尝试，并且可以正常工作。

{
"ETickets": [
    {
        "TicketName": "Weekend - Regular Day Pass",
        "TicketAccessType": "PA",
        "TicketGuest": "RDP",
        "IsWeekday": true
    },
    {
        "TicketName": "Weekend - Regular Day Pass",
        "TicketAccessType": "PA",
        "TicketGuest": "RDP",
        "IsWeekday": true
    }
],
"TransactDetails": {
    "CompanyCode": "ONLINE",
    "Surname": "Dela Cruz",
    "FirstName": "Juan",
    "BookingReference": "1113",
    "BookingDate": "2018-08-16T11:31:20:04"
}

}

但是，当我以编码方式尝试时，无法使其正常工作。 调试时显示500个内部服务器错误。 这是错误屏幕截图：

这是与我的问题相关的一些代码：

TransactionDetailsViewModel finale = new TransactionDetailsViewModel();
finale.TransacDetails = transacDetail;
finale.ETickets = lsTickets.ToArray();
client = new HttpClient();
client.BaseAddress = new Uri(url);
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", System.Web.HttpContext.Current.Session["WebApiAccessToken"].ToString());
HttpResponseMessage responseMessage = await client.PostAsJsonAsync(url + "api/Transaction/SendTransaction/", finale);

这是我使用的模型：

public class TransactionDetailsViewModel
{
    public TransactionDetails TransacDetails { get; set; }
    public TicketDetailsModel[] ETickets { get; set; }
}

public class TransactionDetails
{
    public string CompanyCode { get; set; }
    public string Surname { get; set; }
    public string FirstName { get; set; }
    public string BookingReference { get; set; }
    public DateTime? BookingDate { get; set; }
}

public class TicketDetailsModel
{
    public string TicketAccessType { get; set; }
    public string TicketGuest { get; set; }
    public string TicketName { get; set; }
    public bool IsWeekday { get; set; }
}

我是否以正确的格式发送数据或进行一些调整以使其可以发送到PostAsJsonAsync ？

任何帮助都感激不尽。 谢谢。

Answer 1

请修改您的代码，就像

var data = new StringContent(JsonConvert.SerializeObject(finale, Encoding.UTF8, "application/json"));

    HttpResponseMessage responseMessage = await client.PostAsJsonAsync("api/Transaction/SendTransaction/", data);

或者您可以提出请求，然后像这样发送

HttpResponseMessage response = null;
            using (var client = new HttpClient())
            {
                using (var request = new HttpRequestMessage(HttpMethod.Post, url+"/api/Transaction/SendTransaction"))
                {
                    request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
                    request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", System.Web.HttpContext.Current.Session["WebApiAccessToken"].ToString());
                    var data = new StringContent(JsonConvert.SerializeObject(finale, Encoding.UTF8, "application/json"));
request.Content = data;
                    response = await client.SendAsync(request);
                }
            }

Answer 2

请尝试在下面的行中发布数据

httpClient.PostAsync(url + "/api /Transaction/SendTransaction/", new StringContent(JsonConvert.SerializeObject(finale).ToString(), Encoding.UTF8, "application/json")).Result;