WebSocket-scgWebSocket For Delphi

祝福国家强大

sgcWebSocket 组件作为商业组件，相对比较成熟，今天研究一下，参考官网地址：https://www.esegece.com

• 服务端

sgcWebSocketServer
属性：Bindings 增加监听socket 配置监听Ip地址和端口
Active 激活监听功能
方法：OnConnect 客户端连接到服务端时触发的方法
OnMessage 收到客户端消息时触发的方法
至此，一个简单的WebSocket服务端已经实现了。

源码：

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, sgcBase_Classes, sgcSocket_Classes, sgcTCP_Classes,
  sgcWebSocket_Classes, sgcWebSocket_Server, sgcWebSocket, StdCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    sgcWebSocketServer1: TsgcWebSocketServer;
    procedure Button1Click(Sender: TObject);
    procedure sgcWebSocketServer1Message(Connection: TsgcWSConnection;
      const Text: String);
    procedure sgcWebSocketServer1Connect(Connection: TsgcWSConnection);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
  sgcWebSocketServer1.Active:=True;
  Button1.Caption:='Stop';
end;

procedure TForm1.sgcWebSocketServer1Message(Connection: TsgcWSConnection;
  const Text: String);
begin
  ShowMessage('Message Received From Client:'+text);
end;

procedure TForm1.sgcWebSocketServer1Connect(Connection: TsgcWSConnection);
begin
  Caption:='Connected!';
end;

end.

• 客户端

sgcWebSocketClient
属性：Host 服务端地址
Port 服务端端口
Active 激活连接
事件：WriteData() 发送数据

源码

unit Unit2;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, sgcBase_Classes, sgcSocket_Classes, sgcTCP_Classes,
  sgcWebSocket_Classes, sgcWebSocket_Classes_Indy, sgcWebSocket_Client,
  sgcWebSocket;

type
  TForm2 = class(TForm)
    sgcWebSocketClient1: TsgcWebSocketClient;
    Button1: TButton;
    Edit1: TEdit;
    Button2: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form2: TForm2;

implementation

{$R *.dfm}

procedure TForm2.Button1Click(Sender: TObject);
begin
  sgcWebSocketClient1.Active:=True;
  Button1.Enabled:=False;
  Button2.Enabled:=True;
end;

procedure TForm2.Button2Click(Sender: TObject);
begin
   sgcWebSocketClient1.WriteData('Hello Server From VCL Client');
end;

end.

来源：https://www.cnblogs.com/sundh1981/p/17465404.html