c# - 编译的dll中的序列化异常

Question

我继承了一个电子商务 ASP.NET(c# 代码隐藏)网络应用程序。我们最近移动了服务器，事实证明这有点麻烦。我对 IIS 服务器配置和处理此类大型项目的经验很少。大多数问题现已得到解决，但我们遇到了一个关键部分的问题，因为客户试图付款。
当客户确认付款时，应用程序遇到以下错误:

    Unable to serialize the session state. In 'StateServer' and 'SQLServer' mode, ASP.NET
will serialize the session state objects, and as a result non-serializable objects or 
MarshalByRef objects are not permitted. The same restriction applies if similar 
serialization is done by the custom session state store in 'Custom' mode.  

堆栈跟踪:

[SerializationException: Type 'PayerAuthentication.PayerAuthenticationServicePost' in Assembly 'PayerAuthentication, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' is not marked as serializable.]
   System.Runtime.Serialization.FormatterServices.InternalGetSerializableMembers(RuntimeType type) +7733643
   System.Runtime.Serialization.FormatterServices.GetSerializableMembers(Type type, StreamingContext context) +258
   System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitMemberInfo() +111
   System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitSerialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, ObjectWriter objectWriter) +161
   System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.Serialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, ObjectWriter objectWriter) +51
   System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Serialize(Object graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck) +410
   System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers, Boolean fCheck) +134
   System.Web.Util.AltSerialization.WriteValueToStream(Object value, BinaryWriter writer) +1577

Google 搜索结果表明我应该添加 [Serializable]到受影响的类声明，但这是在我没有 csproj 的已编译 dll 中。 代码在以前的服务器上运行良好，我认为没有对代码进行任何更改，仅对 web.config 进行了更改 - 我该怎么办？

web.config 的 session 状态部分显示为 <sessionState mode="StateServer" />

UPDATE1:我使用 Reflector 导出了上面的类，使其可序列化，重新编译并替换了 dll。订购过程更进了一步，于是我遇到了另一个 dll 编译类的相同错误。我又一次能够使用 Reflector 查看代码，然后将其导出、编辑和重新编译。
现在我有同样的错误发生在:

SerializationException: Type 'System.Runtime.Remoting.Messaging.AsyncResult' in Assembly 'mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' is not marked as serializable.]

我不确定我能对此做些什么，因为这一定是 .net 系统文件的一部分!还有其他想法吗？

UPDATE2:哈，好吧，我随后发现它正在正确处理付款，但随后抛出了上面的 Unable to serialize the session state System.Runtime.Remoting.Messaging.AsyncResult 上的错误在用户收到交易之前。不好。不确定现在如何前进...

UPDATE3:我尝试创建 System.Runtime.Remoting.Messaging.AsyncResult 的副本类，并使其可序列化，但这会导致不一致的可访问性问题。

using System;
using System.Runtime.InteropServices;
using System.Threading;
using System.Security.Permissions;
using System.Runtime.Remoting.Messaging;

    [Serializable, ComVisible(true)]
    public class myAsyncResult : IAsyncResult, IMessageSink
    {
        // Fields
        private AsyncCallback _acbd;
        private Delegate _asyncDelegate;
        private object _asyncState;
        private ManualResetEvent _AsyncWaitHandle;
        private bool _endInvokeCalled;
        private bool _isCompleted;
        private IMessageCtrl _mc;
        private IMessage _replyMsg;

        // Methods
        internal myAsyncResult(Message m);
        //[SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.Infrastructure)]
        public virtual IMessageCtrl AsyncProcessMessage(IMessage msg, IMessageSink replySink);
        private void FaultInWaitHandle();
        public virtual IMessage GetReplyMessage();
        public virtual void SetMessageCtrl(IMessageCtrl mc);
        //[SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.Infrastructure)]
        public virtual IMessage SyncProcessMessage(IMessage msg);

        // Properties
        public virtual object AsyncDelegate { get; }
        public virtual object AsyncState { get; }
        public virtual WaitHandle AsyncWaitHandle { get; }
        public virtual bool CompletedSynchronously { get; }
        public bool EndInvokeCalled { get; set; }
        public virtual bool IsCompleted { get; }
        public IMessageSink NextSink { [SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.Infrastructure)] get; }
    }

具体来说，error CS0122: 'System.Runtime.Remoting.Messaging.Message' is inaccessible due to its protection level .我可以看到这是因为 Message 是一个内部类。但我肯定无法更改它的可访问性级别，因为它是 System.Runtime 命名空间的一部分。制作副本并重命名它肯定会再次引发同样的问题，对吗？
现在有人可以帮助我吗？

最终更新 看起来，毕竟，它是 SSL 证书(见下面我的回答)

Answer 1

如果您真的想要代码，可以尝试使用 Reflector 的类 View 。至少，它可以帮助您验证 [Serializable] 是否是问题类定义的一部分。