DataSourceResult をある Web サービスから別の Web サービスに移動しようとすると、エラーが発生します...クライアントは、Web サーバーに存在する Web サービス A を呼び出します。次に、db サーバーに存在する Web サービス B を呼び出します。意図は、Web サービス A が特定の機密データを呼び出しに追加し、ファイアウォールの背後に隠したいということです...その後、呼び出しは Web サービス B によって処理され、DataSourceResult を取得し、それを正常にシリアル化するように見えます...注ボットのシリアル化と逆シリアル化に同じ一連のシリアル化プロパティを使用しています。簡潔にするために、ここではシリアル化の呼び出しを示していません。これを逆シリアル化しようとすると、System.AggregateException が発生します - 「return formatter.ReadFromStreamAsync(typeof(T), stream, null, null).Result as T;」という行でスローされます。私の逆シリアル化コードの...アイデアはありますか? 何でも大歓迎です:)
コードをシリアライズする:
string Serialize<T>(MediaTypeFormatter formatter, T value)
{
// Create a dummy HTTP Content.
Stream stream = new MemoryStream();
var content = new StreamContent(stream);
/// Serialize the object.
formatter.WriteToStreamAsync(typeof(T), value, stream, content, null).Wait();
// Read the serialized string.
stream.Position = 0;
return content.ReadAsStringAsync().Result;
}
コードを逆シリアル化します。
T Deserialize<T>(MediaTypeFormatter formatter, string str) where T : class
{
// Write the serialized string to a memory stream.
Stream stream = new MemoryStream();
StreamWriter writer = new StreamWriter(stream);
writer.Write(str);
writer.Flush();
stream.Position = 0;
// Deserialize to an object of type T
return formatter.ReadFromStreamAsync(typeof(T), stream, null, null).Result as T;
}
Json オブジェクト / メソッドに渡される設定:
var json = GlobalConfiguration.Configuration.Formatters.OfType<System.Net.Http.Formatting.JsonMediaTypeFormatter>().FirstOrDefault();
json.SerializerSettings.Formatting = Formatting.None;
json.SerializerSettings.DateFormatHandling = DateFormatHandling.IsoDateFormat;
json.SerializerSettings.ReferenceLoopHandling = ReferenceLoopHandling.Serialize;
json.SerializerSettings.PreserveReferencesHandling = Newtonsoft.Json.PreserveReferencesHandling.Objects;
json.SerializerSettings.NullValueHandling = NullValueHandling.Include;
json.UseDataContractJsonSerializer = false;
DataSourceResult result = Deserialize<DataSourceResult>(json, loansJson);
この文字列を逆シリアル化しようとすると、次のエラーがスローされます。
`System.AggregateException was unhandled by user code
HResult=-2146233088
Message=One or more errors occurred.
Source=mscorlib
StackTrace:
at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
at Cavatica35.Web.Api.Controllers.RelationshipsGridController.Deserialize[T](MediaTypeFormatter formatter, String str) in c:\dev\Cavatica35\Code\MarginMaximizerInteractive\Cavatica35.Web\Api\Controllers\RelationshipsGridController.cs:line 54
at Cavatica35.Web.Api.Controllers.RelationshipsGridController.Get(RelationshipDataSourceRequest request) in c:\dev\Cavatica35\Code\MarginMaximizerInteractive\Cavatica35.Web\Api\Controllers\RelationshipsGridController.cs:line 96
at lambda_method(Closure , Object , Object[] )
at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.<GetExecutor>b__9(Object instance, Object[] methodParameters)
at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.Execute(Object instance, Object[] arguments)
at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken)
InnerException: Newtonsoft.Json.JsonSerializationException
HResult=-2146233088
System.AggregateException was unhandled by user code
HResult=-2146233088
Message=One or more errors occurred.
Source=mscorlib
StackTrace:
at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
at Cavatica35.Web.Api.Controllers.RelationshipsGridController.Deserialize[T](MediaTypeFormatter formatter, String str) in c:\dev\Cavatica35\Code\MarginMaximizerInteractive\Cavatica35.Web\Api\Controllers\RelationshipsGridController.cs:line 54
at Cavatica35.Web.Api.Controllers.RelationshipsGridController.Get(RelationshipDataSourceRequest request) in c:\dev\Cavatica35\Code\MarginMaximizerInteractive\Cavatica35.Web\Api\Controllers\RelationshipsGridController.cs:line 96
at lambda_method(Closure , Object , Object[] )
at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.<GetExecutor>b__9(Object instance, Object[] methodParameters)
at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.Execute(Object instance, Object[] arguments)
at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken)
InnerException: Newtonsoft.Json.JsonSerializationException
HResult=-2146233088
Message=Error converting value "{"$id":"1","Data":[{"$id":"2","Relationship_loanOfficerName":"Deva MMi Admin","guidID":"c4327c4a-7aa5-4503-b738-59a9241a5a1c","name":"New Deva","briefDescription":null,"fullDescription":"","autoRenewLOC":0,"numOfLoans":1,"loanBalance":1000000.0,"numOfDeposits":0,"Relationship_depositbalance":0.0,"numOfOtherRels":0,"otherRelBalance":0.0,"targetROE":0.0,"yearsRemaining":5,"ownedBy":"21973a46-c06e-4ddc-8a94-05bb53c949e6","modBy":"00000000-0000-0000-0000-000000000000","createdBy":"00000000-0000-0000-0000-000000000000","modDate":"12/18/2014","createdDate":"1/1/0001","Relationship_netincome":16955.0,"Relationship_relationshiproe":26.48,"Relationship_avgbalance":1000000.0,"monthsUntilFirstRenewal":"1/1/0001","requiresReview":false,"deleted":false,"extIDList":"","overrideOfficer":false,"selected":false,"ni":16954.908394431,"niOverROE":64028.495587965743,"tag":""}],"Total":1,"AggregateResults":[{"$id":"3","Value":1,"Member":"name","FormattedValue":1,"ItemCount":0,"Caption":null,"FunctionName":"Count_name_28477829","AggregateMethodName":"Count"},{"$id":"4","Value":16955.0,"Member":"Relationship_netincome","FormattedValue":16955.0,"ItemCount":0,"Caption":null,"FunctionName":"Sum_Relationship_netincome_244267","AggregateMethodName":"Sum"},{"$id":"5","Value":26.48,"Member":"Relationship_relationshiproe","FormattedValue":26.48,"ItemCount":0,"Caption":null,"FunctionName":"Sum_Relationship_relationshiproe_8060817","AggregateMethodName":"Sum"},{"$id":"6","Value":1000000.0,"Member":"Relationship_avgbalance","FormattedValue":1000000.0,"ItemCount":0,"Caption":null,"FunctionName":"Sum_Relationship_avgbalance_64680392","AggregateMethodName":"Sum"},{"$id":"7","Value":1,"Member":"numOfLoans","FormattedValue":1,"ItemCount":0,"Caption":null,"FunctionName":"Sum_numOfLoans_54078176","AggregateMethodName":"Sum"},{"$id":"8","Value":1000000.0,"Member":"loanBalance","FormattedValue":1000000.0,"ItemCount":0,"Caption":null,"FunctionName":"Sum_loanBalance_39749352","AggregateMethodName":"Sum"},{"$id":"9","Value":0,"Member":"numOfDeposits","FormattedValue":0,"ItemCount":0,"Caption":null,"FunctionName":"Sum_numOfDeposits_36660208","AggregateMethodName":"Sum"},{"$id":"10","Value":0.0,"Member":"Relationship_depositbalance","FormattedValue":0.0,"ItemCount":0,"Caption":null,"FunctionName":"Sum_Relationship_depositbalance_1827337","AggregateMethodName":"Sum"},{"$id":"11","Value":16954.908394431,"Member":"ni","FormattedValue":16954.908394431,"ItemCount":0,"Caption":null,"FunctionName":"Sum_ni_60302147","AggregateMethodName":"Sum"},{"$id":"12","Value":64028.495587965743,"Member":"niOverROE","FormattedValue":64028.495587965743,"ItemCount":0,"Caption":null,"FunctionName":"Sum_niOverROE_43813805","AggregateMethodName":"Sum"}],"Errors":null}" to type 'Kendo.Mvc.UI.DataSourceResult'. Path '', line 1, position 3087.
Source=Newtonsoft.Json
StackTrace:
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.EnsureType(JsonReader reader, Object value, CultureInfo culture, JsonContract contract, Type targetType)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
at Newtonsoft.Json.JsonSerializer.Deserialize(JsonReader reader, Type objectType)
at System.Net.Http.Formatting.BaseJsonMediaTypeFormatter.ReadFromStream(Type type, Stream readStream, Encoding effectiveEncoding, IFormatterLogger formatterLogger)
at System.Net.Http.Formatting.JsonMediaTypeFormatter.ReadFromStream(Type type, Stream readStream, Encoding effectiveEncoding, IFormatterLogger formatterLogger)
at System.Net.Http.Formatting.BaseJsonMediaTypeFormatter.ReadFromStream(Type type, Stream readStream, HttpContent content, IFormatterLogger formatterLogger)
at System.Net.Http.Formatting.BaseJsonMediaTypeFormatter.ReadFromStreamAsync(Type type, Stream readStream, HttpContent content, IFormatterLogger formatterLogger)
InnerException: System.ArgumentException
HResult=-2147024809
Message=Could not cast or convert from System.String to Kendo.Mvc.UI.DataSourceResult.
Source=Newtonsoft.Json
StackTrace:
at Newtonsoft.Json.Utilities.ConvertUtils.EnsureTypeAssignable(Object value, Type initialType, Type targetType)
at Newtonsoft.Json.Utilities.ConvertUtils.ConvertOrCast(Object initialValue, CultureInfo culture, Type targetType)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.EnsureType(JsonReader reader, Object value, CultureInfo culture, JsonContract contract, Type targetType)
InnerException: `