求助！一个小问题，请大家帮忙谢谢！

Question

我现在在做一个故障处理反馈的系统遇到了一个问题，就是怎么样可以实现网络里面2台电脑通过IP地址进行消息互发？前台用户发了一个故障信息过来我要在后台马上弹出提示框，如果后台不应答的话就要不停的发出提示信息。请问这个用DELPHI怎么实现？谢谢！请大家帮帮忙！分数不够可以再加！

Answer 1

用ServerSocket　ClientSocket　来编程，具体的程序例子，网上很多。。

Answer 2

最好的例子是Delphi 自带的　\Demos\Internet\Chat 。看看就知道如何做了。。

Answer 3

局域网内直接使用信使服务就可以了
net send remotecomputer xxxx
remotecomputer 远程机
xxxx 要发送的信息

Answer 4

怎么不详细了呢。。　
　　\Demos\Internet\Chat 看看啊

Answer 5

unit Unit1;interfaceuses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, Menus, StdCtrls, ScktComp, ExtCtrls, ComCtrls;type
  TForm1 = class(TForm)
    ClientSocket1: TClientSocket;
    ServerSocket1: TServerSocket;
    MainMenu1: TMainMenu;
    File1: TMenuItem;
    listen1: TMenuItem;
    connect1: TMenuItem;
    StatusBar1: TStatusBar;
    Memo2: TMemo;
    Memo1: TMemo;
    Label1: TLabel;
    Label2: TLabel;
    Button1: TButton;
    Button2: TButton;
    NonConnect1: TMenuItem;
    procedure FormCreate(Sender: TObject);
    procedure listen1Click(Sender: TObject);
    procedure connect1Click(Sender: TObject);
    procedure ClientSocket1Connect(Sender: TObject;
      Socket: TCustomWinSocket);
    procedure ServerSocket1Accept(Sender: TObject;
      Socket: TCustomWinSocket);
    procedure ClientSocket1Read(Sender: TObject; Socket: TCustomWinSocket);
    procedure ServerSocket1ClientRead(Sender: TObject;
      Socket: TCustomWinSocket);
    procedure ClientSocket1Error(Sender: TObject; Socket: TCustomWinSocket;
      ErrorEvent: TErrorEvent; var ErrorCode: Integer);
    procedure Memo1KeyDown(Sender: TObject; var Key: Word;
      Shift: TShiftState);
    procedure Button1Click(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure ServerSocket1ClientError(Sender: TObject;
      Socket: TCustomWinSocket; ErrorEvent: TErrorEvent;
      var ErrorCode: Integer);
    procedure ClientSocket1Disconnect(Sender: TObject;
      Socket: TCustomWinSocket);
    procedure ServerSocket1ClientDisconnect(Sender: TObject;
      Socket: TCustomWinSocket);
    procedure Button2Click(Sender: TObject);
    procedure NonConnect1Click(Sender: TObject);  private
    { Private declarations }
  public
    { Public declarations }
  end;var
  Form1: TForm1;
  server:string;
  isserver:boolean;
  Client_Flag : Boolean = False;
  Server_Flag : Boolean = False;
implementation{$R *.dfm}procedure TForm1.FormCreate(Sender: TObject);
begin
    listen1click(nil);
end;procedure TForm1.listen1Click(Sender: TObject);
begin
  memo1.Lines.Clear;
  memo2.Lines.Clear;
  listen1.Checked:=not listen1.Checked;
  if listen1.Checked then
  begin
    clientsocket1.Active:=false;
    serversocket1.Active:=true;
    statusbar1.Panels[0].Text:='listening......';
  end
  else
  begin
    if serversocket1.Active then
      serversocket1.Active:=false;
      clientsocket1.Active:=true;
      statusbar1.Panels[0].Text:='';
  end;
end;procedure TForm1.connect1Click(Sender: TObject);
begin
  if clientsocket1.Active then
    clientsocket1.Active:=false;  server := '192.168.1.';
  if inputquery('computer to connect to ','address name:',server) then
    if length(server)>0 then
      with clientsocket1 do
      begin
        Address:=server;
        try
          active:=true;
        except
        end;
      end;
end;procedure TForm1.ClientSocket1Connect(Sender: TObject;
  Socket: TCustomWinSocket);
begin
     statusbar1.Panels[0].Text:='connected to : '+socket.RemoteHost;
     Client_Flag := true;
end;procedure TForm1.ServerSocket1Accept(Sender: TObject;
  Socket: TCustomWinSocket);
begin
    isserver:=true;
    statusbar1.Panels[0].Text:='connected to : '+socket.RemoteAddress;
    Server_Flag := true;
end;procedure TForm1.ClientSocket1Read(Sender: TObject;
  Socket: TCustomWinSocket);
begin
    memo2.Lines.Add(socket.receivetext)
end;procedure TForm1.ServerSocket1ClientRead(Sender: TObject;
  Socket: TCustomWinSocket);
begin
    memo2.Lines.Add(socket.ReceiveText);
end;procedure TForm1.ClientSocket1Error(Sender: TObject;
  Socket: TCustomWinSocket; ErrorEvent: TErrorEvent;
  var ErrorCode: Integer);
begin
  memo2.Lines.Add('error connecting  to: '+server);
  errorcode:=0;
end;procedure TForm1.Memo1KeyDown(Sender: TObject; var Key: Word;
  Shift: TShiftState);
begin
  if key=VK_return then
  begin
    if Server_Flag then
      serversocket1.socket.connections[0].sendtext(memo1.lines[memo1.lines.count-1])
    else
      ClientSocket1.Socket.SendText(memo1.lines[memo1.lines.count-1]);
    end;
  end;procedure TForm1.Button1Click(Sender: TObject);
begin
    Form1.connect1Click(Sender);
end;procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
    ClientSocket1.Active := False;
    ServerSocket1.Active := False;
end;procedure TForm1.ServerSocket1ClientError(Sender: TObject;
  Socket: TCustomWinSocket; ErrorEvent: TErrorEvent;
  var ErrorCode: Integer);
begin
    ErrorCode := 0;
end;procedure TForm1.ClientSocket1Disconnect(Sender: TObject;
  Socket: TCustomWinSocket);
begin
    Form1.StatusBar1.Panels[0].Text := '断开';
end;procedure TForm1.ServerSocket1ClientDisconnect(Sender: TObject;
  Socket: TCustomWinSocket);
begin
    Form1.StatusBar1.Panels[0].Text := '断开';
end;procedure TForm1.Button2Click(Sender: TObject);
begin
    if Client_Flag then
       ClientSocket1.Active := False;
    if Server_Flag then
       serversocket1.socket.connections[0].Close;
end;procedure TForm1.NonConnect1Click(Sender: TObject);
begin
    Form1.Button2Click(Sender);
end;end.

Answer 6

在Form 上放一个ServerSocket 和一个ClientSocket 设置两个控件的端口,设置ClientSocket的Address或者Host,将两个控件的Active 设置为True;
当ClientSocket发送数据的时候,用SendText(msg:sting);serverSocket 的 OnClientRead()事件接受到CLientSocket 发送的数据时,判断数据的有效性，即可弹出窗口。