Delphi2010中采用DataSnap的三层网络架构服务器获取客户端ip,端口信息

需要的控件

首先要有 TDSServerModule、 TDSServer、TDSTCPServerTransport;
TDSServerClass、TDataModule;实现上述功能主要控件如下图所示

包含的单元包括

 SysUtils, Classes, 
  DSTCPServerTransport,
  DSHTTPCommon, DSHTTP,
      DSServer, DSCommonServer, Provider, IdBaseComponent, IdComponent,
  IdTCPConnection, IdTCPClient;

其中IdTCPConnection单元一定要有。
代码如下，//符号包含的是主要实现部分；

procedure TServerContainer1.DSServer1Connect(
  DSConnectEventObject: TDSConnectEventObject);
var
ClientConnection: TIdTCPConnection;

begin
//=================================================
if DSConnectEventObject.ChannelInfo <> nil then
begin
  ClientConnection := TIdTCPConnection(DSConnectEventObject.ChannelInfo.Id);

  FormMain.ClientID := DSConnectEventObject.ChannelInfo.Id;
  FormMain.ClientIP := ClientConnection.Socket.Binding.PeerIP +
    ‘:‘ + IntToStr(ClientConnection.Socket.Binding.PeerPort);
  FormMain.ServerIP := ClientConnection.Socket.Binding.IP + ‘:‘ +
    IntToStr(ClientConnection.Socket.Binding.Port);
  //=========================================================
  FormMain.bsSkinMemo1.Lines.Clear;
  FormMain.bsSkinMemo1.Lines.Add(‘客户端ID号：‘+IntToStr(FormMain.ClientID));
  FormMain.bsSkinMemo1.Lines.Add(‘客户端IP号：‘+FormMain.ClientIP);
  count:=count+1;
  FormMain.StatusBar1.Panels[0].Text:=‘同时在线人数‘+IntToStr(count);
end;

end;