unit1.pas

idtcpserver 网络通讯传送文件的例子

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, IdBaseComponent, IdComponent, IdTCPConnection, IdTCPClient;

type
  TForm1 = class(TForm)
    IdTCPClient1: TIdTCPClient;
    OpenDialog1: TOpenDialog;
    Edit1: TEdit;
    Edit2: TEdit;
    Button1: TButton;
    Label1: TLabel;
    Button2: TButton;
    procedure Button2Click(Sender: TObject);
    procedure IdTCPClient1Connected(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  getfilename:string;
implementation

{$R *.DFM}

procedure TForm1.Button2Click(Sender: TObject);

    var
  buf:tfilestream;

begin
  if opendialog1.Execute then
            getfilename:=opendialog1.FileName;
            
  buf := TFileStream.Create(GETfilename, fmOpenRead);//edit5.text文件名（含路径）
  IdTCPClient1.Host:=edit1.Text;//ip  string;
  IdTCPClient1.Port:=9999;
  IdTCPClient1.Connect();
  IdTCPClient1.WriteLn(ExtractFileName(getfilename));
  IdTcpClient1.WriteStream(buf,true,true); //发送文件
  IdTcpClient1.Disconnect;
  buf.Free;

end;

procedure TForm1.IdTCPClient1Connected(Sender: TObject);

begin

     button1.Enabled:=true;
     label1.Caption:='已经连接...............';

end;

end.