Question

我目前正在尝试从我的Web服务中提取数据。我设法使用HTTPClient从Web服务获得成功响应。但是，我无法提取具体值。例如，我的JSON文档读作

{"d":[{"__type":"Info:#website.Model","infoClosingHours":"06:00:00 PM","infoID":1,"infoOpeningDays":"Monday","infoOpeningHours":"09:00:00 AM","infoStatus":"Open"}]}

我想获取infoOpeningDays，但是，我无法做到。

我尝试使用

dynamicObject.GetType().GetProperty("infoOpeningDays").GetValue(dynamicObject, null); 

dynamicObject["infoOpeningDays"];

但它一直让我无效。

这是我的代码

private async void GetData(object sender, EventArgs e)
        {
            HttpClient client = new HttpClient();
            client.BaseAddress = new Uri("ip");

            // Add an Accept header for JSON format.
            client.DefaultRequestHeaders.Accept.Add(
            new MediaTypeWithQualityHeaderValue("application/json"));

            try{
                HttpResponseMessage response = client.GetAsync("WebServices/information.svc/GetInformationJSON").Result;
                if (response.IsSuccessStatusCode)
                {
                    string jsonString = await response.Content.ReadAsStringAsync();
                    dynamic dynamicObject = JsonConvert.DeserializeObject(jsonString);
                    //string abc = dynamicObject.IEnumerator.[0].IEnumerator.[0].IEnumerator.[0].IEnumerator.[5].Name;
                    string abc = dynamicObject.GetType().GetProperty("infoOpeningDays").GetValue(dynamicObject, null);
                }
            }
            catch
            {

            }

        }

Answer 1

您应该直接从动态对象访问属性，如下所示：

dynamic dynamicObject = JsonConvert.DeserializeObject(json);
string infoClosingHours = dynamicObject.d[0].infoClosingHours;

或者这是相同的

string infoClosingHours = dynamicObject.d[0]["infoClosingHours"];

从response.Content.ReadStringASync中提取数据

1 个答案: