Question

我打电话给网络Api，让我回复了一个回复。首先，我将响应定义为var但不是我返回以定义方法顶部的响应。我不确定我必须使用哪种类型的变量。我使用字典，但我得到的是新的关键字。

无法将类型'AnonymousType＃1'隐式转换为Dictionary。

这是我的代码：

    [AllowAnonymous]
    [Route("searchuser")]
    [HttpPost]
    public async Task<ActionResult> SearchUser(UserInfo userInfo)
    {
          object userObject = null;

          Dictionary<string, object> respone = new Dictionary<string, object>();

          if (userInfo.LastName != null && userInfo.Zip != null && userInfo.Ssn != null)
            {

                UserKey userKey = new UserKey();
                userKey.AccountKey = accessKey;
                var response = await httpClient.PostAsJsonAsync(string.Format("{0}{1}", LoanApiBaseUrlValue, "/verifyuser"), userKey);
                if (response.IsSuccessStatusCode)
                {
                    userObject = new JavaScriptSerializer().DeserializeObject(response.Content.ReadAsStringAsync().Result) as object;
                    var json = response.Content.ReadAsStringAsync().Result;
                    var userVerify = new JavaScriptSerializer().Deserialize<VerifyUser>(json);
                }
            }

             respone = new   // this is where I am getting the error before I was using var and it was working.
            {
                success = userObject != null,
                data = userObject
            };
            return Json(respone, JsonRequestBehavior.AllowGet);
        }

Answer 1

在JSON中发送结果可以使用任何类型的变量（List，Dictionary，int，string，...）。

您可以这样做：

public async Task<HttpResponseMessage> SearchUser(UserInfo userInfo) {
    HttpResponseMessage response = new HttpResponseMessage();

    try
    {
        object userObject = null;

        // Do something

        object result = new { success = userObject != null, data = userObject };

        response = Request.CreateResponse(HttpStatusCode.OK, result);
    }
    catch (Exception e)
    {
        // Do Log

        response = Request.CreateResponse(HttpStatusCode.BadRequest, e.Message);
    }

    var tc = new TaskCompletionSource<HttpResponseMessage>();
    tc.SetResult(response);
    return tc.Task;
}

无论变量的类型如何，您都将以JSON形式返回，在这种情况下，该变量是匿名对象类型。

错误消息＆＃34;无法隐式转换类型＆＃39; AnonymousType＃1＆＃39;字典。＆＃34;是因为您试图将匿名对象类型的值设置为Dictionary类型的变量：

// ...
Dictionary<string, object> respone = new Dictionary<string, object>();
// ...
respone = new   // this is where I am getting the error before I was using var and it was working.
{
    success = userObject != null,
    data = userObject
};

我可以使用什么变量类型来回应Web API

1 个答案: