· 客户端源码(uClientMain.pas)：
unit uClientMain;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
ScktComp, ComCtrls, ToolWin, ExtCtrls, StdCtrls, Buttons;
const
SocketHost = '172.16.1.6'; //服务器端地址
type
TfrmClientMain = class(TForm)
ControlBar1: TControlBar;
ToolBar1: TToolBar;
tbConnected: TToolButton;
tbSend: TToolButton;
tbClose: TToolButton;
tbDisconnected: TToolButton;
ClientSocket: TClientSocket;
Edit1: TEdit;
Memo1: TMemo;
StatusBar: TStatusBar;
btnSend: TBitBtn;
procedure tbConnectedClick(Sender: TObject);
procedure tbDisconnectedClick(Sender: TObject);
procedure ClientSocketRead(Sender: TObject; Socket: TCustomWinSocket);
procedure tbSendClick(Sender: TObject);
procedure tbCloseClick(Sender: TObject);
procedure FormShow(Sender: TObject);
procedure ClientSocketConnect(Sender: TObject;
Socket: TCustomWinSocket);
procedure ClientSocketConnecting(Sender: TObject;
Socket: TCustomWinSocket);
procedure ClientSocketDisconnect(Sender: TObject;
Socket: TCustomWinSocket);
procedure FormClose(Sender: TObject; var Action: TCloseAction);
procedure ClientSocketError(Sender: TObject; Socket: TCustomWinSocket;
ErrorEvent: TErrorEvent; var ErrorCode: Integer);
private
{ Private declarations }
public
{ Public declarations }
end;
var
frmClientMain: TfrmClientMain;
implementation
{$R *.DFM}
//打开套接字连接
procedure TfrmClientMain.tbConnectedClick(Sender: TObject);
begin
ClientSocket.Open ;
end;
//关闭套接字连接
procedure TfrmClientMain.tbDisconnectedClick(Sender: TObject);
begin
ClientSocket.Close;
end;
//接受服务器端的回复
procedure TfrmClientMain.ClientSocketRead(Sender: TObject;Socket: TCustomWinSocket);
begin
Memo1.Lines.Add(Socket.ReceiveText);
end;
//发送信息到服务器端
procedure TfrmClientMain.tbSendClick(Sender: TObject);
begin
ClientSocket.Socket.SendText(Edit1.Text);
end;
procedure TfrmClientMain.tbCloseClick(Sender: TObject);
begin
Close;
end;
//设置要连接的服务器端地址
procedure TfrmClientMain.FormShow(Sender: TObject);
begin
ClientSocket.Host := SocketHost;
end;
//已经连接到服务器端
procedure TfrmClientMain.ClientSocketConnect(Sender: TObject;Socket: TCustomWinSocket);
begin
tbSend.Enabled := True;
tbDisconnected.Enabled :=True;
btnSend.Enabled := True;
StatusBar.Panels[0].Text := '已经连接到 '+ Socket.RemoteHost ;
end;
//正在连接到服务器端
procedure TfrmClientMain.ClientSocketConnecting(Sender: TObject;Socket: TCustomWinSocket);
begin
StatusBar.Panels[0].Text := '正在连接到服务器... ' ;
end;
//当断开与服务器端的连接时发生
procedure TfrmClientMain.ClientSocketDisconnect(Sender: TObject;
Socket: TCustomWinSocket);
begin
tbSend.Enabled := False;
btnSend.Enabled := False;
tbDisconnected.Enabled := False;
StatusBar.Panels[0].Text := '已经断开与 '+ Socket.RemoteHost +' 的连接';
end;
procedure TfrmClientMain.FormClose(Sender: TObject;
var Action: TCloseAction);
begin
ClientSocket.Close ;
end;
//当与服务器端的连接发生错误时
procedure TfrmClientMain.ClientSocketError(Sender: TObject;
Socket: TCustomWinSocket; ErrorEvent: TErrorEvent;var ErrorCode: Integer);
begin
StatusBar.Panels[0].Text := '与服务器端的连接发生错误';
ErrorCode := 0;
end;
end. |
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