无法将当前JSON对象(例如{"name":"value"})反序列化为类型
本文关键字:quot value 反序列化 类型 name 对象 JSON 例如 | 更新日期: 2023-09-27 18:14:19
我有以下代码
public async Task<ActionResult> GetExtendedProperties()
{
Uri serviceRoot = new Uri(SettingsHelper.AzureAdGraphApiEndPoint);
var token = AppToken.GetAppToken();
var adClient = AuthenticationHelper.GetActiveDirectoryClient();
Microsoft.Azure.ActiveDirectory.GraphClient.Application app = (Microsoft.Azure.ActiveDirectory.GraphClient.Application)adClient.Applications.Where(
a => a.AppId == SettingsHelper.ClientId).ExecuteSingleAsync().Result;
if (app == null)
{
throw new ApplicationException("Unable to get a reference to application in Azure AD.");
}
string requestUrl = string.Format("https://graph.windows.net/{0}/applications/{1}/extensionProperties?api-version=1.5", SettingsHelper.Tenant, app.ObjectId);
HttpClient hc = new HttpClient();
hc.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue(
"Bearer", token);
HttpResponseMessage hrm = await hc.GetAsync(new Uri(requestUrl));
if (hrm.IsSuccessStatusCode)
{
string jsonresult = await hrm.Content.ReadAsStringAsync();
return View();
}
else
{
return View();
}
}
返回这个字符串
{"odata.metadata":"https://graph.windows.net/mysaasapp.onmicrosoft.com/$metadata#directoryObjects/Microsoft.DirectoryServices.ExtensionProperty","value":[{"odata.type":"Microsoft.DirectoryServices.ExtensionProperty","objectType":"ExtensionProperty","objectId":"f751a646-2cc1-4e30-bfc6-a8217c0ce0a3","deletionTimestamp":null,"appDisplayName":"","name":"extension_33e037a7b1aa42ab96936c22d01ca338_Modulos","dataType":"String","isSyncedFromOnPremises":false,"targetObjects":["User"]},{"odata.type":"Microsoft.DirectoryServices.ExtensionProperty","objectType":"ExtensionProperty","objectId":"80aabe1b-b020-41d1-bd2d-cc04af264fe5","deletionTimestamp":null,"appDisplayName":"","name":"extension_33e037a7b1aa42ab96936c22d01ca338_ModulesPerUser","dataType":"String","isSyncedFromOnPremises":false,"targetObjects":["User"]},{"odata.type":"Microsoft.DirectoryServices.ExtensionProperty","objectType":"ExtensionProperty","objectId":"6e3d7592-7a66-4792-b408-891251197868","deletionTimestamp":null,"appDisplayName":"","name":"extension_33e037a7b1aa42ab96936c22d01ca338_Comasdasa3dsdaspInfo","dataType":"String","isSyncedFromOnPremises":false,"targetObjects":["User"]},{"odata.type":"Microsoft.DirectoryServices.ExtensionProperty","objectType":"ExtensionProperty","objectId":"93a26374-4135-4f29-9f24-4154522449ec","deletionTimestamp":null,"appDisplayName":"","name":"extension_33e037a7b1aa42ab96936c22d01ca338_CompInfo","dataType":"String","isSyncedFromOnPremises":false,"targetObjects":["User"]},{"odata.type":"Microsoft.DirectoryServices.ExtensionProperty","objectType":"ExtensionProperty","objectId":"21a8a3d4-f4b4-45b4-8d07-55d450db35f2","deletionTimestamp":null,"appDisplayName":"","name":"extension_33e037a7b1aa42ab96936c22d01ca338_CompanyNameForSaasApp","dataType":"String","isSyncedFromOnPremises":false,"targetObjects":["User"]},{"odata.type":"Microsoft.DirectoryServices.ExtensionProperty","objectType":"ExtensionProperty","objectId":"7b3109e0-8710-4d1a-81c3-2b6a83fb62ee","deletionTimestamp":null,"appDisplayName":"","name":"extension_33e037a7b1aa42ab96936c22d01ca338_Compania","dataType":"String","isSyncedFromOnPremises":false,"targetObjects":["User"]}]}
使用json2charp,我创建了这个类:
public class ActiveDirectorySchemaExtension
{
public string objectType { get; set; }
public string objectId { get; set; }
public object deletionTimestamp { get; set; }
public string appDisplayName { get; set; }
public string name { get; set; }
public string dataType { get; set; }
public bool isSyncedFromOnPremises { get; set; }
public List<string> targetObjects { get; set; }
}
我如何将该字符串转换为列表,以便我可以轻松地在视图上操作它?
更新:我试过了:
List<ActiveDirectorySchemaExtension> tmp = JsonConvert.DeserializeObject<List<ActiveDirectorySchemaExtension>>(jsonresult);
但是我得到了这个
不能反序列化当前JSON对象(例如{"name":"value"})为类型"System.Collections.Generic.List"1 (CapatechSaasApp.Areas.GlobalAdmin.Models.ActiveDirectorySchemaExtension)"因为该类型需要一个JSON数组(例如[1,2,3])来反序列化正确。要修复此错误,可以将JSON更改为JSON数组(例如[1,2,3])或更改反序列化类型,使其为正常类型.NET类型(例如,不是像整数这样的原始类型,也不是集合)类型(如数组或列表),可以从JSON中反序列化对象。还可以将JsonObjectAttribute添加到类型中以强制使用它从JSON对象反序列化。路[' odata。元数据']',第1行,位置18 .
您忘记了json2sharp中的父对象。
.NETFiddle演示
using System;
using System.Collections.Generic;
using Newtonsoft.Json;
public class ActiveDirectorySchemaExtension // You can switch from the original class name to yours
{
public string Type { get; set; } // You should switch to PascalCase to respect C# notation
public string ObjectType { get; set; }
public string ObjectId { get; set; }
public object DeletionTimestamp { get; set; }
public string AppDisplayName { get; set; }
public string Name { get; set; }
public string DataType { get; set; }
public bool IsSyncedFromOnPremises { get; set; }
public List<string> TargetObjects { get; set; }
}
public class RootObject
{
public string Metadata { get; set; }
public List<ActiveDirectorySchemaExtension> Value { get; set; }
}
public void Main()
{
var json = "{'odata.metadata':'https://graph.windows.net/mysaasapp.onmicrosoft.com/$metadata#directoryObjects/Microsoft.DirectoryServices.ExtensionProperty','value':[{'odata.type':'Microsoft.DirectoryServices.ExtensionProperty','objectType':'ExtensionProperty','objectId':'f751a646-2cc1-4e30-bfc6-a8217c0ce0a3','deletionTimestamp':null,'appDisplayName':'','name':'extension_33e037a7b1aa42ab96936c22d01ca338_Modulos','dataType':'String','isSyncedFromOnPremises':false,'targetObjects':['User']},{'odata.type':'Microsoft.DirectoryServices.ExtensionProperty','objectType':'ExtensionProperty','objectId':'80aabe1b-b020-41d1-bd2d-cc04af264fe5','deletionTimestamp':null,'appDisplayName':'','name':'extension_33e037a7b1aa42ab96936c22d01ca338_ModulesPerUser','dataType':'String','isSyncedFromOnPremises':false,'targetObjects':['User']},{'odata.type':'Microsoft.DirectoryServices.ExtensionProperty','objectType':'ExtensionProperty','objectId':'6e3d7592-7a66-4792-b408-891251197868','deletionTimestamp':null,'appDisplayName':'','name':'extension_33e037a7b1aa42ab96936c22d01ca338_Comasdasa3dsdaspInfo','dataType':'String','isSyncedFromOnPremises':false,'targetObjects':['User']},{'odata.type':'Microsoft.DirectoryServices.ExtensionProperty','objectType':'ExtensionProperty','objectId':'93a26374-4135-4f29-9f24-4154522449ec','deletionTimestamp':null,'appDisplayName':'','name':'extension_33e037a7b1aa42ab96936c22d01ca338_CompInfo','dataType':'String','isSyncedFromOnPremises':false,'targetObjects':['User']},{'odata.type':'Microsoft.DirectoryServices.ExtensionProperty','objectType':'ExtensionProperty','objectId':'21a8a3d4-f4b4-45b4-8d07-55d450db35f2','deletionTimestamp':null,'appDisplayName':'','name':'extension_33e037a7b1aa42ab96936c22d01ca338_CompanyNameForSaasApp','dataType':'String','isSyncedFromOnPremises':false,'targetObjects':['User']},{'odata.type':'Microsoft.DirectoryServices.ExtensionProperty','objectType':'ExtensionProperty','objectId':'7b3109e0-8710-4d1a-81c3-2b6a83fb62ee','deletionTimestamp':null,'appDisplayName':'','name':'extension_33e037a7b1aa42ab96936c22d01ca338_Compania','dataType':'String','isSyncedFromOnPremises':false,'targetObjects':['User']}]}";
var o = JsonConvert.DeserializeObject<RootObject>(json);
Console.WriteLine(o.Value[0].Name);
}
输出:extension_33e037a7b1aa42ab96936c22d01ca338_Modulos
可以使用DataContractSerializer
var serializer = new DataContractJsonSerializer(typeof(RootObject));
var ms = new MemoryStream(Encoding.Unicode.GetBytes(json));
var root = serializer.ReadObject(ms) as RootObject;
但是你也应该用[DataContract]属性标记你的类,用[DataMember]属性标记你的成员。
像这样:
[DataContract]
public class RootObject
{
[DataMember(Name = "odata.metadata")]
public string metadata { get; set; }
[DataMember]
public List<ActiveDirectorySchemaExtension> value { get; set; }
}
另外,您在类ActiveDirectorySchemaExtension - odataType中丢失了一个字段。你可以像这样反序列化它:
[DataMember(Name = "odata.type")]
public string odataType { get; set; }