文件的传输

Question

var testream:tfilestream;
begin
testream:=tfilestream.Create(opendialog1.FileName,fmOpenRead);
testream.Position:=0;
clientsocket1.Socket.SendStream(testream); //发送文件
end;
我要接收应该怎么样写呢！！
请大家来帮帮我。

Answer 1

//================================客户端=====================================
unit Unit1;interfaceuses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, ScktComp;type
  TForm1 = class(TForm)
    ClientSocket1: TClientSocket;
    OpenDialog1: TOpenDialog;
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;var
  Form1: TForm1;implementation{$R *.dfm}procedure TForm1.Button1Click(Sender: TObject);
var
  s : TWinSocketStream;
  f, f2: TFileStream;
begin
  if not OpenDialog1.Execute then Exit;
  ClientSocket1.Open;
  s := TWinSocketStream.Create(ClientSocket1.Socket, 60000);
  f := TFileStream.Create(OpenDialog1.FileName, fmShareDenyWrite);
  try
    s.CopyFrom(f, 0);
  finally
    s.Free;
    f.Free;
    ClientSocket1.Close;
  end;
end;end.//========================================服务器端====================================
unit Unit2;interfaceuses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ScktComp;type
  TForm1 = class(TForm)
    ServerSocket1: TServerSocket;
    procedure ServerSocket1GetThread(Sender: TObject;
      ClientSocket: TServerClientWinSocket;
      var SocketThread: TServerClientThread);
    private
    { Private declarations }
    public
    { Public declarations }
    end;
  TClientThread = Class(TServerClientThread)
    private
    public
    procedure ClientExecute; override;
    end;
    
var
  Form1: TForm1;implementation{$R *.dfm}
procedure TClientThread.ClientExecute;
var
  ReceiveBuffer : Array[0..1023] Of Char;
  SocketStream : TWinSocketStream;
  BytesRead : Integer;
  F : TFileStream;
  FileName: string;
begin
 while not Terminated and ClientSocket.Connected do
  Begin
   try
     SocketStream := TWinSocketStream.Create(ClientSocket, 100);
     FileName := 'C:\afile';
     if FileExists(FileName) then FileName := FileName + '0';
     F := TFileStream.Create(FileName, fmCreate);
     try
       FillChar(ReceiveBuffer, sizeof(ReceiveBuffer), 0);
        while SocketStream.WaitForData(5000) do
        begin
          BytesRead := SocketStream.Read(ReceiveBuffer,SizeOf(ReceiveBuffer));
          if BytesRead = 0 then
            ClientSocket.Close
          Else
           F.WriteBuffer(ReceiveBuffer, BytesRead);
        end;
     finally
       SocketStream.Free;
       ClientSocket.Close;
       f.Free;
     end;
   except
   end;
  end;
end;
procedure TForm1.ServerSocket1GetThread(Sender: TObject;
  ClientSocket: TServerClientWinSocket;
  var SocketThread: TServerClientThread);
begin
  SocketThread := TClientThread.Create(False, ClientSocket);
end;end.

Answer 2

何不试试 Indy 系列的 idTCPClient 和 idTCPServer 很方便的。