如何控制TServerSocket的最大连接数 我要令我的ServerSocket只允许一个连接,如何做!注意:是直接不能让其连接,而不是在连接后再关闭。 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 给你一个例子,就是我设为最多连接10台· 服务器端源码(uServerMain.pas): unit uServerMain; interface uses Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, ScktComp, ToolWin, ComCtrls, ExtCtrls, StdCtrls, Buttons; const CMax=10; //客户端最大连接数 type client_record=record CHandle: integer; //客户端套接字句柄 CSocket:TCustomWinSocket; //客户端套接字 CName:string; //客户端计算机名称 CAddress:string; //客户端计算机IP地址 CUsed: boolean; //客户端联机标志 end; type TfrmServerMain = class(TForm) ServerSocket: TServerSocket; ControlBar1: TControlBar; ToolBar1: TToolBar; tbConnect: TToolButton; tbClose: TToolButton; tbDisconnected: TToolButton; Edit1: TEdit; Memo1: TMemo; StatusBar: TStatusBar; procedure tbConnectClick(Sender: TObject); procedure tbDisconnectedClick(Sender: TObject); procedure ServerSocketClientRead(Sender: TObject; Socket: TCustomWinSocket); procedure ServerSocketListen(Sender: TObject; Socket: TCustomWinSocket); procedure ServerSocketClientConnect(Sender: TObject; Socket: TCustomWinSocket); procedure ServerSocketClientDisconnect(Sender: TObject; Socket: TCustomWinSocket); procedure tbCloseClick(Sender: TObject); procedure FormCreate(Sender: TObject); procedure FormClose(Sender: TObject; var Action: TCloseAction); procedure ServerSocketGetSocket(Sender: TObject; Socket: Integer; var ClientSocket: TServerClientWinSocket); procedure ServerSocketClientError(Sender: TObject; Socket: TCustomWinSocket; ErrorEvent: TErrorEvent; var ErrorCode: Integer); private { Private declarations } public { Public declarations } session: array[0..CMax] of client_record; //客户端连接数组 Sessions: integer; //客户端连接数 end; var frmServerMain: TfrmServerMain; implementation {$R *.DFM} //打开套接字连接,并使套接字进入监听状态 procedure TfrmServerMain.tbConnectClick(Sender: TObject); begin ServerSocket.Open ; end; //关闭套接字连接,不再监听客户端的请求 procedure TfrmServerMain.tbDisconnectedClick(Sender: TObject); begin ServerSocket.Close; StatusBar.Panels[0].Text :='服务器套接字连接已经关闭,无法接受客户端的连接请求.'; end; //从客户端读取信息 procedure TfrmServerMain.ServerSocketClientRead(Sender: TObject; Socket: TCustomWinSocket); var i:integer; begin //将从客户端读取的信息添加到Memo1中 Memo1.Lines.Add(Socket.ReceiveText); for i:=0 to sessions do begin //取得匹配的客户端 if session[i].CHandle = Socket.SocketHandle then begin session[i].CSocket.SendText('回复客户端'+session[i].CAddress+' ==> '+Edit1.Text); end; end; end; //服务器端套接字进入监听状态,以便监听客户端的连接 procedure TfrmServerMain.ServerSocketListen(Sender: TObject; Socket: TCustomWinSocket); begin StatusBar.Panels[0].Text :='等待客户端连接...'; end; //当客户端连接到服务器端以后 procedure TfrmServerMain.ServerSocketClientConnect(Sender: TObject; Socket: TCustomWinSocket); var i,j:integer; begin j:=-1; for i:=0 to sessions do begin //在原有的客户端连接数组中有中断的客户端连接 if not session[i].CUsed then begin session[i].CHandle := Socket.SocketHandle ;//客户端套接字句柄 session[i].CSocket := Socket; //客户端套接字 session[i].CName := Socket.RemoteHost ; //客户端计算机名称 session[i].CAddress := Socket.RemoteAddress ;//客户端计算机IP session[i].CUsed := True; //连接数组当前位置已经占用 Break; end; j:=i; end; if j=sessions then begin inc(sessions); session[j].CHandle := Socket.SocketHandle ; session[j].CSocket := Socket; session[j].CName := Socket.RemoteHost ; session[j].CAddress := Socket.RemoteAddress ; session[j].CUsed := True; end; StatusBar.Panels[0].Text := '客户端 '+Socket.RemoteHost + ' 已经连接'; end; //当客户端断开连接时 procedure TfrmServerMain.ServerSocketClientDisconnect(Sender: TObject; Socket: TCustomWinSocket); var i:integer; begin for i:=0 to sessions do begin if session[i].CHandle =Socket.SocketHandle then begin session[i].CHandle :=0; session[i].CUsed := False; Break; end; end; StatusBar.Panels[0].Text :='客户端 '+Socket.RemoteHost + ' 已经断开'; end; //关闭窗口 procedure TfrmServerMain.tbCloseClick(Sender: TObject); begin Close; end; procedure TfrmServerMain.FormCreate(Sender: TObject); begin sessions := 0; end; procedure TfrmServerMain.FormClose(Sender: TObject; var Action: TCloseAction); begin ServerSocket.Close ; end; //当客户端正在与服务器端连接时 procedure TfrmServerMain.ServerSocketGetSocket(Sender: TObject; Socket: Integer; var ClientSocket: TServerClientWinSocket); begin StatusBar.Panels[0].Text :='客户端正在连接...'; end; //客户端发生错误 procedure TfrmServerMain.ServerSocketClientError(Sender: TObject; Socket: TCustomWinSocket; ErrorEvent: TErrorEvent; var ErrorCode: Integer); begin StatusBar.Panels[0].Text :='客户端'+Socket.RemoteHost +'发生错误!'; ErrorCode := 0; end; end. · 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. ServerSocket1.Socket.ActiveConnections这个可以吗? to xiaoqiang123(xiaoqiang) :代码很多,但没有我需要的。 我的方法是在GetSocket事件发生时,不用使用原来的Socket,而新建另外一个Socket去引开它,然后再通知客户端关闭,这样原来的Socket就不会跟它连接了。 求RSA算法原代码或者动态库 如何何到全局过程声明? 急!!如何读取Excel数据在存入Word(高分) AdoQuery.DeleteRecords具体怎么设置其参数?? 今天我休息 问题很难,请高手指教 如何用DELPHI实现RS232串口通讯一次发9位信息,即奇偶校验位人为规定为0或1?谢谢,在线等待! delphi的查询实现(大二学生求救) 如何使用SQL动态语句呀:( 用Tsqlconnection连接数据库时,服务器名怎么写呀、 读文件的问题 增样让DBLookupComboBox把选出来的东西全部列出,而不是只能看到一个,要看别的需要点鼠标?
· 服务器端源码(uServerMain.pas):
unit uServerMain;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
ScktComp, ToolWin, ComCtrls, ExtCtrls, StdCtrls, Buttons;
const
CMax=10; //客户端最大连接数
type
client_record=record
CHandle: integer; //客户端套接字句柄
CSocket:TCustomWinSocket; //客户端套接字
CName:string; //客户端计算机名称
CAddress:string; //客户端计算机IP地址
CUsed: boolean; //客户端联机标志
end;
type
TfrmServerMain = class(TForm)
ServerSocket: TServerSocket;
ControlBar1: TControlBar;
ToolBar1: TToolBar;
tbConnect: TToolButton;
tbClose: TToolButton;
tbDisconnected: TToolButton;
Edit1: TEdit;
Memo1: TMemo;
StatusBar: TStatusBar;
procedure tbConnectClick(Sender: TObject);
procedure tbDisconnectedClick(Sender: TObject);
procedure ServerSocketClientRead(Sender: TObject;
Socket: TCustomWinSocket);
procedure ServerSocketListen(Sender: TObject;
Socket: TCustomWinSocket);
procedure ServerSocketClientConnect(Sender: TObject;
Socket: TCustomWinSocket);
procedure ServerSocketClientDisconnect(Sender: TObject;
Socket: TCustomWinSocket);
procedure tbCloseClick(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure FormClose(Sender: TObject; var Action: TCloseAction);
procedure ServerSocketGetSocket(Sender: TObject; Socket: Integer;
var ClientSocket: TServerClientWinSocket);
procedure ServerSocketClientError(Sender: TObject;
Socket: TCustomWinSocket; ErrorEvent: TErrorEvent;
var ErrorCode: Integer);
private
{ Private declarations }
public
{ Public declarations }
session: array[0..CMax] of client_record; //客户端连接数组
Sessions: integer; //客户端连接数
end;
var
frmServerMain: TfrmServerMain;
implementation
{$R *.DFM}
//打开套接字连接,并使套接字进入监听状态
procedure TfrmServerMain.tbConnectClick(Sender: TObject);
begin
ServerSocket.Open ;
end;
//关闭套接字连接,不再监听客户端的请求
procedure TfrmServerMain.tbDisconnectedClick(Sender: TObject);
begin
ServerSocket.Close;
StatusBar.Panels[0].Text :='服务器套接字连接已经关闭,无法接受客户端的连接请求.';
end;
//从客户端读取信息
procedure TfrmServerMain.ServerSocketClientRead(Sender: TObject;
Socket: TCustomWinSocket);
var
i:integer;
begin
//将从客户端读取的信息添加到Memo1中
Memo1.Lines.Add(Socket.ReceiveText);
for i:=0 to sessions do
begin
//取得匹配的客户端
if session[i].CHandle = Socket.SocketHandle then
begin
session[i].CSocket.SendText('回复客户端'+session[i].CAddress+' ==> '+Edit1.Text);
end;
end;
end;
//服务器端套接字进入监听状态,以便监听客户端的连接
procedure TfrmServerMain.ServerSocketListen(Sender: TObject;
Socket: TCustomWinSocket);
begin
StatusBar.Panels[0].Text :='等待客户端连接...';
end;
//当客户端连接到服务器端以后
procedure TfrmServerMain.ServerSocketClientConnect(Sender: TObject;
Socket: TCustomWinSocket);
var
i,j:integer;
begin
j:=-1;
for i:=0 to sessions do
begin
//在原有的客户端连接数组中有中断的客户端连接
if not session[i].CUsed then
begin
session[i].CHandle := Socket.SocketHandle ;//客户端套接字句柄
session[i].CSocket := Socket; //客户端套接字
session[i].CName := Socket.RemoteHost ; //客户端计算机名称
session[i].CAddress := Socket.RemoteAddress ;//客户端计算机IP
session[i].CUsed := True; //连接数组当前位置已经占用
Break;
end;
j:=i;
end;
if j=sessions then
begin
inc(sessions);
session[j].CHandle := Socket.SocketHandle ;
session[j].CSocket := Socket;
session[j].CName := Socket.RemoteHost ;
session[j].CAddress := Socket.RemoteAddress ;
session[j].CUsed := True;
end;
StatusBar.Panels[0].Text := '客户端 '+Socket.RemoteHost + ' 已经连接';
end;
//当客户端断开连接时
procedure TfrmServerMain.ServerSocketClientDisconnect(Sender: TObject;
Socket: TCustomWinSocket);
var
i:integer;
begin
for i:=0 to sessions do
begin
if session[i].CHandle =Socket.SocketHandle then
begin
session[i].CHandle :=0;
session[i].CUsed := False;
Break;
end;
end;
StatusBar.Panels[0].Text :='客户端 '+Socket.RemoteHost + ' 已经断开';
end;
//关闭窗口
procedure TfrmServerMain.tbCloseClick(Sender: TObject);
begin
Close;
end;
procedure TfrmServerMain.FormCreate(Sender: TObject);
begin
sessions := 0;
end;
procedure TfrmServerMain.FormClose(Sender: TObject;
var Action: TCloseAction);
begin
ServerSocket.Close ;
end;
//当客户端正在与服务器端连接时
procedure TfrmServerMain.ServerSocketGetSocket(Sender: TObject;
Socket: Integer; var ClientSocket: TServerClientWinSocket);
begin
StatusBar.Panels[0].Text :='客户端正在连接...';
end;
//客户端发生错误
procedure TfrmServerMain.ServerSocketClientError(Sender: TObject;
Socket: TCustomWinSocket; ErrorEvent: TErrorEvent;
var ErrorCode: Integer);
begin
StatusBar.Panels[0].Text :='客户端'+Socket.RemoteHost +'发生错误!';
ErrorCode := 0;
end;
end.
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.
这个可以吗?
代码很多,但没有我需要的。