Flurl 抛出异常 (MoveNext())

Question

我正在尝试通过 Flurl 从 WinForms 应用程序 (.Net Framework 4.7) 调用 Web API POST 操作 (.Net Core)。但是，当我尝试调试 Flurl 抛出的异常时，我的请求甚至没有进入控制器本身。

尝试逐行调试问题没有帮助。我想是因为 Web API 和 WinForms 是同一个解决方案中的两个不同项目，所以我无法进入从表单到控制器的调试？

   at Flurl.Http.FlurlRequest.<HandleExceptionAsync>d__23.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
   at Flurl.Http.FlurlRequest.<SendAsync>d__19.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Flurl.Http.FlurlRequest.<SendAsync>d__19.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Flurl.Http.HttpResponseMessageExtensions.<ReceiveJson>d__0`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at BTM.WinUI.APIService.<Insert>d__12`1.MoveNext() in C:\Users\User\Documents\Visual Studio 2019\Projects\APITest\APITest.WinUI\APIService.cs:line 61

基本上我会实例化我创建的类的一个对象并调用我的 API 服务：

var entity = new UserRegistrationModel
{
        Username = "test",
        Email = "test@test.com",
        Password = "test",
        PasswordConfirmation = "test",
        Roles = new List<int>()
};
entity.Roles.Add(1);
entity.Roles.Add(2);

await _service.Insert<User>(entity);

这就是我的调用的样子：

public async Task<T> Insert<T>(object request)
{
        string url = "https://localhost:44365/api/users";
        return await url.PostJsonAsync(request).ReceiveJson<T>();
}

我的控制器应该通过向数据库添加一个新用户并返回一个 User 对象来处理它，但该方法的代码永远不会执行。

[HttpPost]
public User Post(UserRegistrationModel request)
{
        return _service.Register(request);
}

Answer 1

可能是由于HTTPS，Flurl 无法向您的 localhost 发送 POST 请求。尝试在您的 ASP NET Core Web API 项目中禁用 SSL。