unit1.pas.~4~

delphi+socket通讯的例子

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ScktComp, StdCtrls, ComCtrls, ExtCtrls;

type
  TForm1 = class(TForm)
    ServerSocket1: TServerSocket;
    Edit1: TEdit;
    Label1: TLabel;
    Button1: TButton;
    Ztailan: TStatusBar;
    Memo1: TMemo;
    GroupBox1: TGroupBox;
    Memo2: TMemo;
    GroupBox2: TGroupBox;
    GroupBox3: TGroupBox;
    GroupBox4: TGroupBox;
    Edit2: TEdit;
    Button2: TButton;
    GroupBox5: TGroupBox;
    ListBox1: TListBox;
   
    procedure Button1Click(Sender: TObject);
    procedure ServerSocket1ClientConnect(Sender: TObject;
      Socket: TCustomWinSocket);
    procedure FormCreate(Sender: TObject);
    procedure ServerSocket1ClientDisconnect(Sender: TObject;
      Socket: TCustomWinSocket);
    procedure  ROutMessage(sMsg: string);
    procedure ServerSocket1ClientRead(Sender: TObject;
      Socket: TCustomWinSocket);
    procedure Button2Click(Sender: TObject);
    procedure sockxiaoxi (s:Boolean) ;

  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}
procedure Tform1.ROutMessage(sMsg: string);
begin
  sMsg:='[' + DateTimeToStr(Now) + '] ' + sMsg;
  Memo1.Lines.Add(sMsg);
end;
procedure Tform1.sockxiaoxi (s:Boolean) ;
var
fmsg:string;
begin
 if s=false then
  begin
    fMsg:= edit2.Text;
    Memo2.Lines.Add('[' + DateTimeToStr(Now) + '] 发送: '+ fMsg);
    ServerSocket1.socket.connections[0].sendtext(fmsg);
  end else
  begin
  fmsg:=serversocket1.Socket.ReceiveText;
  Memo2.Lines.Add('[' + DateTimeToStr(Now) + '] 收到: '+ fMsg);
  end;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  ServerSocket1.open;  //开始监听
  Ztailan.Panels[0].Text:='开始监听...'  ;
  Ztailan.Panels[1].Text:=inttostr(ServerSocket1.Port);
  {这样服务端就一直在监听1987这个端口,监听到连接就响应
   OnAccept这个事件}
   ROutMessage('开始监听');
   Button1.Enabled:=false;
end;


procedure TForm1.Button2Click(Sender: TObject);
begin
sockxiaoxi(true) ;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
ServerSocket1.Port:=1987;//设置的监听端口

end;

procedure TForm1.ServerSocket1ClientConnect(Sender: TObject;
  Socket: TCustomWinSocket);
begin
Ztailan.Panels[0].Text:='已连接...' ;
ROutMessage('连接');
listbox1.Items.Add(Socket.RemoteAddress);
end;

procedure TForm1.ServerSocket1ClientDisconnect(Sender: TObject;
  Socket: TCustomWinSocket);
begin
Ztailan.Panels[0].Text:='已断开...';
ROutMessage('连接断开');
Button1.Enabled:=true;
end;
procedure TForm1.ServerSocket1ClientRead(Sender: TObject;
  Socket: TCustomWinSocket);
begin
memo2.Lines.Add('[' + DateTimeToStr(Now) + '] 收到: '+Socket.ReceiveText);
end;

end.