任何对象转换为一个byte [] [英] Convert any object to a byte[]

问题描述

我写了一个原型TCP连接，我有一些麻烦，均质化的数据将被发送。

I am writing a prototype TCP connection and I am having some trouble homogenizing the data to be sent.

目前，我送什么，但字符串，但在未来，我们希望能够发送任何对象。

At the moment, I am sending nothing but strings, but in the future we want to be able to send any object.

在code是目前很简单，因为我以为一切都可以被转换成字节数组：

The code is quite simple at the moment, because I thought everything could be cast into a byte array:

void SendData(object headerObject, object bodyObject)
{
  byte[] header = (byte[])headerObject;  //strings at runtime, 
  byte[] body = (byte[])bodyObject;      //invalid cast exception

  // Unable to cast object of type 'System.String' to type 'System.Byte[]'.
  ...
}

这当然是很轻松地解决了一个

This of course is easily enough solved with a

if( state.headerObject is System.String ){...}

现在的问题是，如果我这样做的，我需要检查每个类型的对象不能转换为一个byte []在运行时。

The problem is, if I do it that way, I need to check for EVERY type of object that can't be cast to a byte[] at runtime.

由于我不知道能不能转换成一个byte []在运行时的每一个对象，这真的不是一个选项。

Since I do not know every object that can't be cast into a byte[] at runtime, this really isn't an option.

怎样才能把任何物体都成C＃.net 4.0？

How does one convert any object at all into a byte array in C# .NET 4.0?

推荐答案

使用的<一个href="http://msdn.microsoft.com/en-us/library/system.runtime.serialization.formatters.binary.binaryformatter.aspx"><$c$c>BinaryFormatter:

private byte[] ObjectToByteArray(Object obj)
{
    if(obj == null)
        return null;
    BinaryFormatter bf = new BinaryFormatter();
    using(MemoryStream ms = new MemoryStream())
    {
        bf.Serialize(ms, obj);
        return ms.ToArray();
    }
}

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