Question

所以，这是交易。我有两个ASP.NET应用程序，它们都使用SQLServer会话状态管理。他们也使用相同的服务器。我在外部DLL中有一个自定义会话类，它完全实现了序列化，并且两个应用程序都引用了它。反过来，每个应用程序都有一个继承自DLL类的类，两个应用程序都使用各自的类作为会话状态。

现在，我想要完成的是，如果你想去另一个应用程序，它可以查看会话（它们都使用相同的会话密钥）并将那里的现有对象视为基础（一个从DLL），提取您需要的任何登录信息，然后用您自己的覆盖会话对象。不幸的是，当第二个应用程序试图读取会话时，它似乎找到第一个应用程序的DLL，当它找不到它时，它会引发异常。

我的逻辑是否有缺陷？

以下是一个例子：

// Global.asax of the 1st app  
protected void Session_Start(object sender, EventArgs e)  
{  
    Session.Add(  
        "UserSessionKey",  
        new FirstUserSession()); // FirstUserSession inherits from BaseUserSession  
}

现在第二个申请：

// Global.asax of 2nd app
protected void Session_Start(object sender, EventArgs e)
{
    if (Session["UserSessionKey"] != null)
    {
        BaseUserSession existing = (BaseUserSession)Session["UserSessionKey"];

        SecondUserSession session = new SecondUserSession(); // This also inherits from BaseUserSession

        session.Authenticated = existing.Authenticated;
        session.Id = existing.Id;
        session.Role = existing.Role;

        Session.Add("UserSessionKey", session);
    }
    else
    {
        Session.Add("UserSessionKey", new SecondUserSession());
    }
}

这是异常堆栈跟踪。在这种情况下，“MyCBC”是第一个应用程序的真实名称，“ASPTesting”是第二个应用程序。

[SerializationException: Unable to find assembly 'MyCBC, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'.]
   System.Runtime.Serialization.Formatters.Binary.BinaryAssemblyInfo.GetAssembly() +1871092
   System.Runtime.Serialization.Formatters.Binary.ObjectReader.GetType(BinaryAssemblyInfo assemblyInfo, String name) +7545734
   System.Runtime.Serialization.Formatters.Binary.ObjectMap..ctor(String objectName, String[] memberNames, BinaryTypeEnum[] binaryTypeEnumA, Object[] typeInformationA, Int32[] memberAssemIds, ObjectReader objectReader, Int32 objectId, BinaryAssemblyInfo assemblyInfo, SizedArray assemIdToAssemblyTable) +120
   System.Runtime.Serialization.Formatters.Binary.ObjectMap.Create(String name, String[] memberNames, BinaryTypeEnum[] binaryTypeEnumA, Object[] typeInformationA, Int32[] memberAssemIds, ObjectReader objectReader, Int32 objectId, BinaryAssemblyInfo assemblyInfo, SizedArray assemIdToAssemblyTable) +52
   System.Runtime.Serialization.Formatters.Binary.__BinaryParser.ReadObjectWithMapTyped(BinaryObjectWithMapTyped record) +190
   System.Runtime.Serialization.Formatters.Binary.__BinaryParser.ReadObjectWithMapTyped(BinaryHeaderEnum binaryHeaderEnum) +61
   System.Runtime.Serialization.Formatters.Binary.__BinaryParser.Run() +253
   System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(HeaderHandler handler, __BinaryParser serParser, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage) +168
   System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream, HeaderHandler handler, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage) +203
   System.Web.Util.AltSerialization.ReadValueFromStream(BinaryReader reader) +788
   System.Web.SessionState.SessionStateItemCollection.ReadValueFromStreamWithAssert() +55
   System.Web.SessionState.SessionStateItemCollection.DeserializeItem(String name, Boolean check) +281
   System.Web.SessionState.SessionStateItemCollection.get_Item(String name) +19
   System.Web.SessionState.HttpSessionStateContainer.get_Item(String name) +13
   System.Web.SessionState.HttpSessionState.get_Item(String name) +13
   ASPTesting._Default.Page_Load(Object sender, EventArgs e) in C:\Documents and Settings\sarsstu\My Documents\Projects\Testing\ASPTesting\ASPTesting\Default.aspx.cs:20
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
   System.Web.UI.Control.OnLoad(EventArgs e) +99
   System.Web.UI.Control.LoadRecursive() +50
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627

提前感谢所有人。

Answer 1

我想这应该会有所帮助：Advanced Binary Serialization: Deserializing an Object Into a Different Type Than the One It was Serialized Into

Answer 2

exisiting不是baseusersession，它是作为baseusersession的第一个用户。因此，它可能会被强制转换回firstusersession，它只存在于mycbc程序集中。

无法找到程序集，C＃

2 个答案: