BinaryFormatter BinaryFormatter BinaryFormatter BinaryFormatter Class

定义

public ref class BinaryFormatter sealed : System::Runtime::Remoting::Messaging::IRemotingFormatter

[System.Runtime.InteropServices.ComVisible(true)]
public sealed class BinaryFormatter : System.Runtime.Remoting.Messaging.IRemotingFormatter

type BinaryFormatter = class
    interface IRemotingFormatter
    interface IFormatter

Public NotInheritable Class BinaryFormatter
Implements IRemotingFormatter

继承

ObjectObjectObjectObject

BinaryFormatterBinaryFormatterBinaryFormatterBinaryFormatter

属性

ComVisibleAttribute

实现

IRemotingFormatterIRemotingFormatterIRemotingFormatterIRemotingFormatter IFormatterIFormatterIFormatterIFormatter

示例

using namespace System;
using namespace System::IO;
using namespace System::Collections;
using namespace System::Runtime::Serialization::Formatters::Binary;
using namespace System::Runtime::Serialization;
ref class App
{
public:
   static void Serialize()
   {
      
      // Create a hashtable of values that will eventually be serialized.
      Hashtable^ addresses = gcnew Hashtable;
      addresses->Add( "Jeff", "123 Main Street, Redmond, WA 98052" );
      addresses->Add( "Fred", "987 Pine Road, Phila., PA 19116" );
      addresses->Add( "Mary", "PO Box 112233, Palo Alto, CA 94301" );
      
      // To serialize the hashtable (and its keys/values),  
      // you must first open a stream for writing. 
      // In this case we will use a file stream.
      FileStream^ fs = gcnew FileStream( "DataFile.dat",FileMode::Create );
      
      // Construct a BinaryFormatter and use it to serialize the data to the stream.
      BinaryFormatter^ formatter = gcnew BinaryFormatter;
      try
      {
         formatter->Serialize( fs, addresses );
      }
      catch ( SerializationException^ e ) 
      {
         Console::WriteLine( "Failed to serialize. Reason: {0}", e->Message );
         throw;
      }
      finally
      {
         fs->Close();
      }

   }

   static void Deserialize()
   {
      
      // Declare the hashtable reference.
      Hashtable^ addresses = nullptr;
      
      // Open the file containing the data that we want to deserialize.
      FileStream^ fs = gcnew FileStream( "DataFile.dat",FileMode::Open );
      try
      {
         BinaryFormatter^ formatter = gcnew BinaryFormatter;
         
         // Deserialize the hashtable from the file and 
         // assign the reference to our local variable.
         addresses = dynamic_cast<Hashtable^>(formatter->Deserialize( fs ));
      }
      catch ( SerializationException^ e ) 
      {
         Console::WriteLine( "Failed to deserialize. Reason: {0}", e->Message );
         throw;
      }
      finally
      {
         fs->Close();
      }

      
      // To prove that the table deserialized correctly, display the keys/values.
      IEnumerator^ myEnum = addresses->GetEnumerator();
      while ( myEnum->MoveNext() )
      {
         DictionaryEntry ^ de = safe_cast<DictionaryEntry ^>(myEnum->Current);
         Console::WriteLine( " {0} lives at {1}.", de->Key, de->Value );
      }
   }

};


[STAThread]
int main()
{
   App::Serialize();
   App::Deserialize();
   return 0;
}

using System;
using System.IO;
using System.Collections;
using System.Runtime.Serialization.Formatters.Binary;
using System.Runtime.Serialization;

public class App 
{
    [STAThread]
    static void Main() 
    {
        Serialize();
        Deserialize();
    }

    static void Serialize() 
    {
        // Create a hashtable of values that will eventually be serialized.
        Hashtable addresses = new Hashtable();
        addresses.Add("Jeff", "123 Main Street, Redmond, WA 98052");
        addresses.Add("Fred", "987 Pine Road, Phila., PA 19116");
        addresses.Add("Mary", "PO Box 112233, Palo Alto, CA 94301");

        // To serialize the hashtable and its key/value pairs,  
        // you must first open a stream for writing. 
        // In this case, use a file stream.
        FileStream fs = new FileStream("DataFile.dat", FileMode.Create);

        // Construct a BinaryFormatter and use it to serialize the data to the stream.
        BinaryFormatter formatter = new BinaryFormatter();
        try 
        {
            formatter.Serialize(fs, addresses);
        }
        catch (SerializationException e) 
        {
            Console.WriteLine("Failed to serialize. Reason: " + e.Message);
            throw;
        }
        finally 
        {
            fs.Close();
        }
    }

   
    static void Deserialize() 
    {
        // Declare the hashtable reference.
        Hashtable addresses  = null;

        // Open the file containing the data that you want to deserialize.
        FileStream fs = new FileStream("DataFile.dat", FileMode.Open);
        try 
        {
            BinaryFormatter formatter = new BinaryFormatter();

            // Deserialize the hashtable from the file and 
            // assign the reference to the local variable.
            addresses = (Hashtable) formatter.Deserialize(fs);
        }
        catch (SerializationException e) 
        {
            Console.WriteLine("Failed to deserialize. Reason: " + e.Message);
            throw;
        }
        finally 
        {
            fs.Close();
        }

        // To prove that the table deserialized correctly, 
        // display the key/value pairs.
        foreach (DictionaryEntry de in addresses) 
        {
            Console.WriteLine("{0} lives at {1}.", de.Key, de.Value);
        }
    }
}

Imports System.IO
Imports System.Collections
Imports System.Runtime.Serialization.Formatters.Binary
Imports System.Runtime.Serialization


Module App

    Sub Main()
        Serialize()
        Deserialize()
    End Sub

    Sub Serialize()

        ' Create a hashtable of values that will eventually be serialized.
        Dim addresses As New Hashtable
        addresses.Add("Jeff", "123 Main Street, Redmond, WA 98052")
        addresses.Add("Fred", "987 Pine Road, Phila., PA 19116")
        addresses.Add("Mary", "PO Box 112233, Palo Alto, CA 94301")

        ' To serialize the hashtable (and its key/value pairs),  
        ' you must first open a stream for writing. 
        ' In this case, use a file stream.
        Dim fs As New FileStream("DataFile.dat", FileMode.Create)

        ' Construct a BinaryFormatter and use it to serialize the data to the stream.
        Dim formatter As New BinaryFormatter
        Try
            formatter.Serialize(fs, addresses)
        Catch e As SerializationException
            Console.WriteLine("Failed to serialize. Reason: " & e.Message)
            Throw
        Finally
            fs.Close()
        End Try
    End Sub



    Sub Deserialize()
        ' Declare the hashtable reference.
        Dim addresses As Hashtable = Nothing

        ' Open the file containing the data that you want to deserialize.
        Dim fs As New FileStream("DataFile.dat", FileMode.Open)
        Try
            Dim formatter As New BinaryFormatter

            ' Deserialize the hashtable from the file and 
            ' assign the reference to the local variable.
            addresses = DirectCast(formatter.Deserialize(fs), Hashtable)
        Catch e As SerializationException
            Console.WriteLine("Failed to deserialize. Reason: " & e.Message)
            Throw
        Finally
            fs.Close()
        End Try

        ' To prove that the table deserialized correctly, 
        ' display the key/value pairs.
        Dim de As DictionaryEntry
        For Each de In addresses
            Console.WriteLine("{0} lives at {1}.", de.Key, de.Value)
        Next
    End Sub
End Module

注解

SoapFormatter并BinaryFormatter类将实现IRemotingFormatter接口以支持远程过程调用 (Rpc) 和IFormatter接口 (由继承IRemotingFormatter) 若要支持的对象图序列化。The SoapFormatter and BinaryFormatter classes implement the IRemotingFormatter interface to support remote procedure calls (RPCs), and the IFormatter interface (inherited by the IRemotingFormatter) to support serialization of a graph of objects. SoapFormatter类还支持使用 RpcISoapMessage对象，而无需使用IRemotingFormatter功能。The SoapFormatter class also supports RPCs with ISoapMessage objects, without using the IRemotingFormatter functionality.

在 Rpc 期间，IRemotingFormatter接口允许两个单独的对象关系图的规范： 要序列化的对象图和额外的关系图，其中包含传递识别信息 （适用于远程函数调用的标头对象的数组例如，事务 ID 或方法签名）。During RPCs, the IRemotingFormatter interface allows the specification of two separate object graphs: the graph of objects to serialize, and an additional graph that contains an array of header objects that convey information about the remote function call (for example, transaction ID or a method signature).

使用的 RpcBinaryFormatter分为两个不同的部分： 方法调用，这发送到与包含调用的方法的远程对象的服务器，并从服务器发送到客户端状态的方法响应和响应从调用的方法的信息。RPCs that use the BinaryFormatter separate into two distinct parts: method calls, which are sent to the server with the remote object that contains the method called, and method responses, which are sent from the server to the client with the status and response information from the called method.

在序列化的方法调用期间对象图的第一个对象必须支持IMethodCallMessage接口。During serialization of a method call the first object of the object graph must support the IMethodCallMessage interface. 若要反序列化方法调用，使用Deserialize方法替换HeaderHandler参数。To deserialize a method call, use the Deserialize method with the HeaderHandler parameter. 远程处理基础结构使用HeaderHandler生成支持的对象的委托ISerializable接口。The remoting infrastructure uses the HeaderHandler delegate to produce an object that supports the ISerializable interface. 当BinaryFormatter调用HeaderHandler委托，它返回的远程对象的 URI 与被调用的方法。When the BinaryFormatter invokes the HeaderHandler delegate, it returns the URI of the remote object with the method that is being called. 在图中的第一个对象返回支持IMethodCallMessage接口。The first object in the graph returned supports the IMethodCallMessage interface.

方法响应的序列化过程等同于方法调用中，除第一个对象的对象关系图必须支持IMethodReturnMessage接口。The serialization procedure for a method response is identical to that of a method call, except the first object of the object graph must support the IMethodReturnMessage interface. 若要反序列化的方法响应，使用DeserializeMethodResponse方法。To deserialize a method response, use the DeserializeMethodResponse method. 以节省时间，调用方对象有关的详细信息不会发送到远程对象方法调用期间。To save time, details about the caller object are not sent to the remote object during the method call. 这些详细信息改为来自原始方法调用，传递给DeserializeMethodResponse中的方法IMethodCallMessage参数。These details are instead obtained from the original method call, which is passed to the DeserializeMethodResponse method in the IMethodCallMessage parameter. 返回的关系图中的第一个对象DeserializeMethodResponse方法支持IMethodReturnMessage接口。The first object in the graph returned by the DeserializeMethodResponse method supports the IMethodReturnMessage interface.

不成对的代理Unpaired Surrogates

在二进制序列化会丢失任何不成对的代理项字符。Any unpaired surrogate characters are lost in binary serialization. 例如，下面的字符串包含一个高代理项 Unicode 字符(\ud800) 在两个之间Test单词：For example, the following string contains a high surrogate Unicode character (\ud800) in between the two Test words:

Test\ud800Test

在序列化之前, 的字节数组的字符串如下所示：Before serialization, the byte array of the string is as follows:

反序列化之后, 的高代理项 Unicode 字符是丢失：After deserialization, the high surrogate Unicode character is lost:

构造函数

属性

方法

适用于