Question

我正在尝试解析SharePoint列表中的JSON响应，并将某些节点解析为列表。可以有多个记录。我正在使用Newsoft Json反序列化响应。一切正常，我创建的foreach循环一次遍历结果。同样在foreach循环中，items变量将数据作为结果变量。

以下是代码：

  static List<string> get_json_unsubscribe()
  {
        int counter = 0;
        List<string> list_of_json_users = new List<string>();
        String url = "http://server/site/_api/lists/getbytitle('listname')" 
        HttpWebRequest endpointRequest = (HttpWebRequest)HttpWebRequest.Create(url);
        endpointRequest.Credentials = CredentialCache.DefaultCredentials;
        endpointRequest.Method = "GET";
        endpointRequest.Accept = "application/json;odata=verbose";
        HttpWebResponse endpointResponse = (HttpWebResponse)endpointRequest.GetResponse();

        Stream receiveStream = endpointResponse.GetResponseStream();
        StreamReader readStream = new StreamReader(receiveStream, Encoding.UTF8);


        dynamic results = JsonConvert.DeserializeObject<dynamic>(readStream.ReadToEnd());
        foreach (var item in results)
        {
            string userid= results.d.results[counter].userid
            list_of_json_users.Add(userid);
            counter++;
        }

        return list_of_json_users;

    }

Answer 1

终点：

http://server/site/_api/lists/getbytitle('<listtitle>')

返回 List资源属性，您可能需要此端点：

http://server/site/_api/lists/getbytitle('<listtitle>')/items

返回列表数据（ListItemCollection资源）

要反序列化您的JSON，您可以引入一个模型：

public class UserInfo
{
    [JsonProperty("AuthorId")]
    public string AuthorId { get; set; }

}


public class UserInfoResult
{
    [JsonProperty("results")]
    public List<UserInfo> UserInfoCollection { get; set; }
}


public class UserInfoResultRoot
{
    [JsonProperty("d")]
    public UserInfoResult Result { get; set; }
}

注意：在AuthorId提供的示例ListItem属性中资源被标记为反序列化

在这种情况下反序列化列表项：

dynamic results = JsonConvert.DeserializeObject<dynamic>(readStream.ReadToEnd());
foreach (var item in results)
{
     string userid= results.d.results[counter].userid
     list_of_json_users.Add(userid);
     counter++;
}

可以替换为：

var json = readStream.ReadToEnd();
var data = JsonConvert.DeserializeObject<UserInfoResultRoot>(json);

list_of_json_users可以像这样初始化：

list_of_json_users = data.Result.UserInfoCollection.Select(ui => ui.AuthorId).ToList();

解析SharePoint Restful API数组响应C＃

1 个答案: