c# - Azure移动服务.NET后端HttpResponseMessage返回null内容

Question

我在移动服务的 Web api 中声明了此函数

public HttpResponseMessage Post(LoginRequest loginRequest)
{
    EasyParkContext context = new EasyParkContext();
    User user = context.Users.SingleOrDefault(a => a.UserName == loginRequest.UserName);
    if (user != null)
    {
        if (BCrypt.Net.BCrypt.Verify(loginRequest.Password, user.Password))
        {
            ClaimsIdentity claimsIdentity = new ClaimsIdentity();
            claimsIdentity.AddClaim(new Claim(ClaimTypes.PrimarySid, user.Id));
            claimsIdentity.AddClaim(new Claim(ClaimTypes.NameIdentifier, loginRequest.UserName));
            LoginResult loginResult = new EasyParkLoginProvider(handler).CreateLoginResult(claimsIdentity, Services.Settings.MasterKey);
            return this.Request.CreateResponse(HttpStatusCode.OK, loginResult);
        }
    }
    return this.Request.CreateResponse(HttpStatusCode.Unauthorized, "Invalid username or password");
}

这个函数在我的客户端中声明

public async Task<bool> Login(string userName, string password)
{
    LoginRequest loginRequest = new LoginRequest() { UserName = userName, Password = password };
    try
    {
        HttpResponseMessage loginResult = await _service.InvokeApiAsync<LoginRequest, HttpResponseMessage>("EasyParkLogin", loginRequest);
        JObject json = JObject.Parse(loginResult.Content.ToString());
        _service.CurrentUser = new MobileServiceUser(json["user"]["userId"].ToString().Replace("EasyPark:", ""))
        {
            MobileServiceAuthenticationToken = json["authenticationToken"].ToString()
        };
        return true;
    }
    catch (Exception e)
    {
        return false;
    }
}

它在移动服务页面上工作，但在我的客户端代码期间返回 null，抱歉，由于我的声誉，我无法附加图像...

Answer 1

public async Task<bool> Login(string userName, string password)
{
    LoginRequest loginRequest = new LoginRequest() { UserName = userName, Password = password };
    try
    {
        var loginResult = await _service.InvokeApiAsync("EasyParkLogin", JToken.FromObject(loginRequest));
        JObject json = JObject.Parse(loginResult.ToString());
        _service.CurrentUser = new MobileServiceUser(json["user"]["userId"].ToString().Replace("EasyPark:", ""))
        {
            MobileServiceAuthenticationToken = json["authenticationToken"].ToString()
        };
        return true;
    }
    catch (Exception e)
    {
        return false;
    }
}

通过更改代码:

HttpResponseMessage loginResult = await _service.InvokeApiAsync<LoginRequest, HttpResponseMessage>("EasyParkLogin", loginRequest);
JObject json = JObject.Parse(loginResult.Content.ToString());

至

var loginResult = await _service.InvokeApiAsync("EasyParkLogin", JToken.FromObject(loginRequest));
JObject json = JObject.Parse(loginResult.ToString());