BinaryFormatter.Deserialize [英] BinaryFormatter.Deserialize

问题描述

嗨。


执行BinaryFormatter.Deserialize（）时，我得到：

System.InvalidCastException：指定的强制转换无效。

我实现了ISerializable接口。可能有什么问题？


谢谢。

解决方案

Igor< no *** @ hotmail .COM>写道：

执行BinaryFormatter.Deserialize（）时，我得到：
System.InvalidCastException：指定的强制转换无效。
我实现了ISerializable接口。可能有什么问题？

你能发一个简短但完整的程序来演示

问题吗？

请参阅 http://www.pobox.com /~skeet/csharp/complete.html 了解详情

我的意思是什么。


-

Jon Skeet - < sk *** @ pobox.com>
http ：//www.pobox.com/~skeet

如果回复小组，请不要给我发邮件

[Serializable（）]


公共类ApplicationInfo：IDisposable，ISerializable


{


private指导会议; // 16字节


私人Guid sessionNW; // 16字节


私有字符串ANI;


私有字符串DNIS;


私有字符串mqNW; //网络队列


私有字符串父级;


私有字符串子级;


私有字符串applicationQueue;


private int machineID;


private int boardID;


private int channelID;


私有字符串applicationName ="" ;;


public ApplicationInfo（）


{


}


公共ApplicationInfo（SerializationInfo info，StreamingContext ctxt）


{


session =（Guid）info.GetValue（" session"，typeof（Guid））;


sessionNW =（Guid）info.GetValue（ " sessionNW"，typeof（Guid））;


ANI =（string）info.GetValue（" ANI"，typeof（string））;

DNIS =（string）info.GetValue（" DNIS"，typeof（string））;


mqNW =（string）info.GetValue（" mqNW" ，typeof（string））;


parent =（string）info.GetValue（" parent"，typeof（string））;


child =（string）info.GetValue（" child"，typeof（string））;


applicationQueue =（string）info.GetValue（" applicationQueue"，

typeof（string））;


applicationName =（string）info。 GetValue（" applicationName"，typeof（string））;


machineID =（int）info.GetValue（" machineID"，typeof（int））;


boardID =（int）info.GetValue（" boardID"，typeof（int））;


channelID =（int）info.GetValue（" channelID"，typeof（int））;


}


public ApplicationInfo（string session，string sessionNW，string ANI，string

DNIS，string mqNW，string parent，string child，string applicationQueue，int

machine，int board，int channel，string applicationName）


{


this.session =新Guid（会话）;


this.sessionNW =新Guid（sessionNW）;


this.ANI = ANI;


this.DNIS = DNIS;


this.mqNW = mqNW;


this.parent = parent;


this.child = child;


this.applicationQueue = applicationQueue;


this.machineID = machine;


this.boardID = board;


这个。 channelID = channel;


this.applicationName = applicationName;


}


#region IDisposable会员


public void Dispose（）


{


// TODO：添加ApplicationInfo。配置实施


}


#endregion


#region ISerializable会员


public void GetObjectData（SerializationInfo info，StreamingContext context）


{


info.AddValue（" session" ，会话）;


info.AddValue（" sessionNW"，sessionNW）;


info.AddValue（" ANI&quo t;，ANI）;


info.AddValue（" DNIS"，DNIS）;


info.AddValue（" mqNW" ，mqNW）;


info.AddValue（" parent"，parent）;


info.AddValue（" child"，child ）;


info.AddValue（" applicationQueue"，applicationQueue）;


info.AddValue（" machineID"，machineID）;


info.AddValue（" boardID"，boardID）;


info.AddValue（" channelID"，channelID）;


info.AddValue（" applicationName"，applicationName）;


}


#endregion < br $>

}


..........


ApplicationInfo app;


MemoryStream流=新的MemoryStream（）;


BinaryFormatter formatter = new BinaryFormatter（）;


formatter.Serialize（stream，app）;


MessageQueue mq = new MessageQueue（mqPath）;


M essage m = new Message（stream，new BinaryMessageFormatter（））;


mq.Formatter = new BinaryMessageFormatter（）;


mq.Send （m）;


.........


public void OnReceiveCompleted（Object source，ReceiveCompletedEventArgs

asyncResult）


{


试试


{


MessageQueue mq =（MessageQueue）source;


消息m = mq.EndReceive（asyncResult.AsyncResult）;


m.Formatter = new BinaryMessageFormatter（）;


incomingMessage（source，new IncomingMessageEventArgs（（object）m.BodyStream，

false））;


mq.BeginReceive（）;


}


catch（Exception ex）
< br $>
{


Console.WriteLine（ex.ToString（））;


}


}


......


public void OnIncomingMessage（对象源，IncomingMessageEventArgs e）


$

BinaryFormatter formatter = new BinaryFormatter（）;


application = null;


application =（ApplicationInfo）formatter.Deserialize（（Stream）eg etDocument）;


}



Jon Skeet [C＃MVP]" < SK *** @ pobox.com>在消息中写道

新闻：MP ************************ @ msnews.microsoft.c om ...

Igor< no *** @ hotmail.com>写道：

执行BinaryFormatter.Deserialize（）时，我得到：
System.InvalidCastException：指定的强制转换无效。
我实现了ISerializable接口。可能有什么问题？

你能发一个简短但完整的程序来演示
问题吗？

参见 http://www.pobox.com/~skeet/csharp/complete.html 详细信息
我的意思是什么。

-
Jon Skeet - < sk *** @ pobox.com>
http://www.pobox.com/~skeet
如果回复群组，请不要给我发邮件

Igor< no *** @ hotmail.com>写道：


< snip>


参见 http://www.pobox.com/~skeet/csharp/incomplete.html


如果您没有以这样的方式发布代码，那么这将有助于每个实际代码行之间还有一个空白行。


-

Jon Skeet - < sk *** @ pobox.com>
http://www.pobox.com/~skeet

如果回复小组，请不要给我发邮件

Hi.

While executing BinaryFormatter.Deserialize() I get:
System.InvalidCastException: Specified cast is not valid.
I implemented ISerializable interface. What may be a problem?

Thanks.

解决方案

Igor <no***@hotmail.com> wrote:

While executing BinaryFormatter.Deserialize() I get:
System.InvalidCastException: Specified cast is not valid.
I implemented ISerializable interface. What may be a problem?

Could you post a short but complete program which demonstrates the
problem?

See http://www.pobox.com/~skeet/csharp/complete.html for details of
what I mean by that.

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Serializable()]

public class ApplicationInfo:IDisposable,ISerializable

{

private Guid session; // 16 bytes

private Guid sessionNW; // 16 bytes

private string ANI;

private string DNIS;

private string mqNW; // networking queue

private string parent;

private string child;

private string applicationQueue;

private int machineID;

private int boardID;

private int channelID;

private string applicationName = "";

public ApplicationInfo()

{

}

public ApplicationInfo(SerializationInfo info, StreamingContext ctxt)

{

session = (Guid)info.GetValue("session", typeof(Guid));

sessionNW = (Guid)info.GetValue("sessionNW", typeof(Guid));

ANI = (string)info.GetValue("ANI", typeof(string));

DNIS = (string)info.GetValue("DNIS", typeof(string));

mqNW = (string)info.GetValue("mqNW", typeof(string));

parent = (string)info.GetValue("parent", typeof(string));

child = (string)info.GetValue("child", typeof(string));

applicationQueue = (string)info.GetValue("applicationQueue",
typeof(string));

applicationName = (string)info.GetValue("applicationName", typeof(string));

machineID = (int)info.GetValue("machineID", typeof(int));

boardID = (int)info.GetValue("boardID", typeof(int));

channelID = (int)info.GetValue("channelID", typeof(int));

}

public ApplicationInfo(string session, string sessionNW, string ANI, string
DNIS, string mqNW, string parent, string child, string applicationQueue, int
machine, int board, int channel, string applicationName)

{

this.session = new Guid(session);

this.sessionNW = new Guid(sessionNW);

this.ANI = ANI;

this.DNIS = DNIS;

this.mqNW = mqNW;

this.parent = parent;

this.child = child;

this.applicationQueue = applicationQueue;

this.machineID = machine;

this.boardID = board;

this.channelID = channel;

this.applicationName = applicationName;

}

#region IDisposable Members

public void Dispose()

{

// TODO: Add ApplicationInfo.Dispose implementation

}

#endregion

#region ISerializable Members

public void GetObjectData(SerializationInfo info, StreamingContext context)

{

info.AddValue("session", session);

info.AddValue("sessionNW", sessionNW);

info.AddValue("ANI", ANI);

info.AddValue("DNIS", DNIS);

info.AddValue("mqNW", mqNW);

info.AddValue("parent", parent);

info.AddValue("child", child);

info.AddValue("applicationQueue", applicationQueue);

info.AddValue("machineID", machineID);

info.AddValue("boardID", boardID);

info.AddValue("channelID", channelID);

info.AddValue("applicationName", applicationName);

}

#endregion

}

..........

ApplicationInfo app;

MemoryStream stream = new MemoryStream();

BinaryFormatter formatter = new BinaryFormatter();

formatter.Serialize(stream, app);

MessageQueue mq = new MessageQueue(mqPath);

Message m = new Message(stream, new BinaryMessageFormatter());

mq.Formatter = new BinaryMessageFormatter();

mq.Send(m);

.........

public void OnReceiveCompleted(Object source, ReceiveCompletedEventArgs
asyncResult)

{

try

{

MessageQueue mq = (MessageQueue)source;

Message m = mq.EndReceive(asyncResult.AsyncResult);

m.Formatter = new BinaryMessageFormatter();

incomingMessage(source, new IncomingMessageEventArgs((object)m.BodyStream,
false));

mq.BeginReceive();

}

catch(Exception ex)

{

Console.WriteLine(ex.ToString());

}

}

......

public void OnIncomingMessage(object source, IncomingMessageEventArgs e)

{

BinaryFormatter formatter = new BinaryFormatter();

application = null;

application = (ApplicationInfo)formatter.Deserialize((Stream)e.g etDocument);

}



"Jon Skeet [C# MVP]" <sk***@pobox.com> wrote in message
news:MP************************@msnews.microsoft.c om...

Igor <no***@hotmail.com> wrote:

While executing BinaryFormatter.Deserialize() I get:
System.InvalidCastException: Specified cast is not valid.
I implemented ISerializable interface. What may be a problem?

Could you post a short but complete program which demonstrates the
problem?

See http://www.pobox.com/~skeet/csharp/complete.html for details of
what I mean by that.

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

Igor <no***@hotmail.com> wrote:

<snip>

See http://www.pobox.com/~skeet/csharp/incomplete.html

It would help if you didn''t post the code in such a way that there''s a
blank line between each real line of code, too.

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

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