BinaryFormatter Clase

Definición

public ref class BinaryFormatter sealed : System::Runtime::Serialization::IFormatter

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

public sealed class BinaryFormatter : System.Runtime.Serialization.IFormatter

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

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

type BinaryFormatter = class
    interface IFormatter

type BinaryFormatter = class
    interface IRemotingFormatter
    interface IFormatter

[<System.Runtime.InteropServices.ComVisible(true)>]
type BinaryFormatter = class
    interface IRemotingFormatter
    interface IFormatter

Public NotInheritable Class BinaryFormatter
Implements IFormatter

Public NotInheritable Class BinaryFormatter
Implements IRemotingFormatter

Herencia

Object

BinaryFormatter

Atributos

ComVisibleAttribute

Implementaciones

IFormatter IRemotingFormatter

Ejemplos

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

Comentarios

Las SoapFormatter BinaryFormatter clases y implementan la IRemotingFormatter interfaz para admitir llamadas a procedimientos remotos (RPC) y la IFormatter interfaz (heredada por IRemotingFormatter ) para admitir la serialización de un gráfico de objetos.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. La SoapFormatter clase también admite RPC con ISoapMessage objetos, sin usar la IRemotingFormatter funcionalidad.The SoapFormatter class also supports RPCs with ISoapMessage objects, without using the IRemotingFormatter functionality.

Durante las RPC, la IRemotingFormatter interfaz permite la especificación de dos gráficos de objetos independientes: el gráfico de objetos que se van a serializar y un gráfico adicional que contiene una matriz de objetos de encabezado que transmiten información sobre la llamada de función remota (por ejemplo, un identificador de transacción o una firma de método).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).

Las RPC que usan la BinaryFormatter independiente en dos partes distintas: llamadas de método, que se envían al servidor con el objeto remoto que contiene el método llamado, y respuestas de método, que se envían desde el servidor al cliente con la información de estado y de respuesta del método llamado.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.

Durante la serialización de una llamada al método, el primer objeto del gráfico de objetos debe ser compatible con la IMethodCallMessage interfaz.During serialization of a method call the first object of the object graph must support the IMethodCallMessage interface. Para deserializar una llamada al método, use el Deserialize método con el HeaderHandler parámetro.To deserialize a method call, use the Deserialize method with the HeaderHandler parameter. La infraestructura de comunicación remota usa el HeaderHandler delegado para generar un objeto que admita la ISerializable interfaz.The remoting infrastructure uses the HeaderHandler delegate to produce an object that supports the ISerializable interface. Cuando BinaryFormatter invoca el HeaderHandler delegado, devuelve el URI del objeto remoto con el método al que se está llamando.When the BinaryFormatter invokes the HeaderHandler delegate, it returns the URI of the remote object with the method that is being called. El primer objeto del gráfico devuelto es compatible con la IMethodCallMessage interfaz.The first object in the graph returned supports the IMethodCallMessage interface.

El procedimiento de serialización de una respuesta de método es idéntico al de una llamada al método, salvo que el primer objeto del gráfico de objetos debe ser compatible con la IMethodReturnMessage interfaz.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. Para deserializar una respuesta de método, use el DeserializeMethodResponse método.To deserialize a method response, use the DeserializeMethodResponse method. Para ahorrar tiempo, los detalles sobre el objeto de llamador no se envían al objeto remoto durante la llamada al método.To save time, details about the caller object are not sent to the remote object during the method call. En su lugar, estos detalles se obtienen de la llamada al método original, que se pasa al DeserializeMethodResponse método en el IMethodCallMessage parámetro.These details are instead obtained from the original method call, which is passed to the DeserializeMethodResponse method in the IMethodCallMessage parameter. El primer objeto del gráfico devuelto por el DeserializeMethodResponse método admite la IMethodReturnMessage interfaz.The first object in the graph returned by the DeserializeMethodResponse method supports the IMethodReturnMessage interface.

Suplentes no emparejadosUnpaired Surrogates

Los caracteres suplentes no emparejados se pierden en la serialización binaria.Any unpaired surrogate characters are lost in binary serialization. Por ejemplo, la siguiente cadena contiene un carácter Unicode suplente alto (\ud800 ) entre las dos Test palabras:For example, the following string contains a high surrogate Unicode character (\ud800) in between the two Test words:

Test\ud800Test

Antes de la serialización, la matriz de bytes de la cadena es la siguiente:Before serialization, the byte array of the string is as follows:

Después de la deserialización, se pierde el carácter Unicode suplente alto:After deserialization, the high surrogate Unicode character is lost:

Constructores

Propiedades

Métodos

Se aplica a