C＃ - system.collections.generic.dictionary`2.get_item（tkey key） [英] C# - system.collections.generic.dictionary`2.get_item(tkey key)

问题描述

我有一个在centOs上使用sql server的项目，它在Windows localhost和IIS上完美运行，但当我在centOs 7上部署项目并且我使用的是kestrel web服务器时，它给了我许多错误，我相信与用于授权我的项目的身份相关。







我没有知道它在说什么或者问题是什么。请帮助我。



PersonalDataProtector，第109行：

I have a project that is using sql server on centOs, its working perfectly on Windows localhost and IIS, but when I deploy the project on centOs 7 and I'm using kestrel web server, it gives me to many errors that I believe are related to the identity that is used for authorization of my project.



I have no idea what it is saying or what's the problem. Please help me.

PersonalDataProtector, Line 109 :

public string Unprotect(string data)

{

byte[] plainText;

// Take our string and convert it back to bytes.

var payload = Convert.FromBase64String(data);

var offset = 0;

// First we extract our key ID and then the appropriate key.

byte[] keyIdAsBytes = new byte[16];

Buffer.BlockCopy(payload, offset, keyIdAsBytes, 0, 16);

var keyIdAsGuid = new Guid(keyIdAsBytes); // Line 109

var keyId = keyIdAsGuid.ToString();

var masterKey = Key(keyId);

offset = 16;

PostPageAPiController ，第109行：

PostPageAPiController, Line 109:

var jobUser = await userManager.FindByIdAsync(job.UserId.ToString());

错误是：



在System.Collections.Generic.Dictionary`2.get_Item（TKey key）

，位于/root/xProjectFiles/DataProtection/PersonalDataProtector.cs:line 109中的X.Project.DataProtection.PersonalDataProtector.Unprotect（字符串数据）

at lambda_method（Closure，DbDataReader）<在Microsoft.EntityFrameworkCore.Storage.Internal.TypedRelationalValueBufferFactory.Create（DbDataReader dataReader）上的
在Microsoft.EntityFrameworkCore.Query.Internal.AsyncQueryingEnumerable`1.AsyncEnumerator.BufferlessMoveNext（DbContext _）中的
，布尔缓冲区，CancellationToken cancellationToken）

在Microsoft.Enti tyFrameworkCore.SqlServer.Storage.Internal.SqlServerExecutionStrategy.ExecuteAsync [TState，TResult]（TState状态，Func`4操作，Func`4 verifySucceeded，CancellationToken cancellationToken）

at Microsoft.EntityFrameworkCore.Query.Internal。 AsyncQueryingEnumerable`1.AsyncEnumerator.MoveNext（CancellationToken cancellationToken）

在D：\\\\\的System.Linq.AsyncEnumerable.FirstOrDefault_ [TSource]（IAsyncEnumerable`1 source，CancellationToken cancellationToken）中\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ .Query.Internal.AsyncLinqOperatorProvider.TaskResultAsyncEnumerable`1.Enumerator.MoveNext（CancellationToken cancellationToken）

在D：\\中的System.Linq.AsyncEnumerable.SelectEnumerableAsyncIterator`2.MoveNextCore（CancellationToken cancellationToken） \\1\\s\\Ix.NET\\Source\\\ System.Interactive.Async\\Select.cs：第106行

在D：\\\\\的System.Linq.AsyncEnumerable.AsyncIterator`1.MoveNext（CancellationToken cancellationToken）中\\ _ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ .Query.Internal.AsyncLinqOperatorProvider.ExceptionInterceptor`1.EnumeratorExceptionInterceptor.MoveNext（CancellationToken cancellationToken）

at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.ExecuteSingletonAsyncQuery [TResult]（QueryContext queryContext，Func`2 compiledQuery， IDiagnosticsLogger`1 logger，Type contextType）

at X.Project.Controllers.PostPageApiController.getPrjPostInfos（Int32 id）in /root/xProjectFiles/Controllers/PostPageApiController.cs:line 109



我尝试了什么：

The errors are:

at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
at X.Project.DataProtection.PersonalDataProtector.Unprotect(String data) in /root/xProjectFiles/DataProtection/PersonalDataProtector.cs:line 109
at lambda_method(Closure , DbDataReader )
at Microsoft.EntityFrameworkCore.Storage.Internal.TypedRelationalValueBufferFactory.Create(DbDataReader dataReader)
at Microsoft.EntityFrameworkCore.Query.Internal.AsyncQueryingEnumerable`1.AsyncEnumerator.BufferlessMoveNext(DbContext _, Boolean buffer, CancellationToken cancellationToken)
at Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerExecutionStrategy.ExecuteAsync[TState,TResult](TState state, Func`4 operation, Func`4 verifySucceeded, CancellationToken cancellationToken)
at Microsoft.EntityFrameworkCore.Query.Internal.AsyncQueryingEnumerable`1.AsyncEnumerator.MoveNext(CancellationToken cancellationToken)
at System.Linq.AsyncEnumerable.FirstOrDefault_[TSource](IAsyncEnumerable`1 source, CancellationToken cancellationToken) in D:\\a\\1\\s\\Ix.NET\\Source\\System.Interactive.Async\\First.cs:line 144
at Microsoft.EntityFrameworkCore.Query.Internal.AsyncLinqOperatorProvider.TaskResultAsyncEnumerable`1.Enumerator.MoveNext(CancellationToken cancellationToken)
at System.Linq.AsyncEnumerable.SelectEnumerableAsyncIterator`2.MoveNextCore(CancellationToken cancellationToken) in D:\\a\\1\\s\\Ix.NET\\Source\\System.Interactive.Async\\Select.cs:line 106
at System.Linq.AsyncEnumerable.AsyncIterator`1.MoveNext(CancellationToken cancellationToken) in D:\\a\\1\\s\\Ix.NET\\Source\\System.Interactive.Async\\AsyncIterator.cs:line 98
at Microsoft.EntityFrameworkCore.Query.Internal.AsyncLinqOperatorProvider.ExceptionInterceptor`1.EnumeratorExceptionInterceptor.MoveNext(CancellationToken cancellationToken)
at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.ExecuteSingletonAsyncQuery[TResult](QueryContext queryContext, Func`2 compiledQuery, IDiagnosticsLogger`1 logger, Type contextType)
at X.Project.Controllers.PostPageApiController.getPrjPostInfos(Int32 id) in /root/xProjectFiles/Controllers/PostPageApiController.cs:line 109

What I have tried:

I have added these codes from other forums, but it didn't work.
<pre lang="c#">var manager = new ApplicationPartManager();

manager.ApplicationParts.Add(new AssemblyPart(typeof(Startup).Assembly));

services.AddSingleton(manager);

services.AddMvc()

.SetCompatibilityVersion(CompatibilityVersion.Version_2_2)

.AddJsonOptions(

options => options.SerializerSettings.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore

);

推荐答案

检查这个out。



实体框架 - 使用FindByIdAsync时取消ASP.Net核心身份 - Stack Overflow [ ^ ]

Check this out.

entity framework - ASP.Net Core Identity canceled when using FindByIdAsync - Stack Overflow[^]

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