main.pas

这是一套全面的网络组件

unit main;

interface

uses
  Windows,
  Messages,
  SysUtils,
  Variants,
  Classes,
  Graphics,
  Controls,
  Forms,
  Dialogs,
  StdCtrls,
  ExtCtrls,
  clTcpClient,
  clHttp,
  clCookies,
  clHtmlParser;

type
  TForm1 = class(TForm)
    Panel1: TPanel;
    memResult: TMemo;
    Label1: TLabel;
    edtUrl: TEdit;
    Label2: TLabel;
    Button1: TButton;
    clHttp1: TclHttp;
    clHtmlParser1: TclHtmlParser;
    cbShowText: TCheckBox;
    procedure Button1Click(Sender: TObject);
    procedure clHtmlParser1ParseTag(Sender: TObject; ATag: TclHtmlTag);
    procedure clHttp1ReceiveResponse(Sender: TObject; const AMethod,
      AUrl: string; AResponseHeader: TStrings; ACookies: TclCookieList);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1             : TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
  html              : TStrings;
begin
  memResult.Lines.Clear();

  html := TStringList.Create();
  try
      clHttp1.Get(edtUrl.Text, html);
      html.SaveToFile('temp.htm'); 
//    clHttp1.Head(edtUrl.Text);

        if cbShowText.Checked then
        begin
          clHtmlParser1.Parse(html);
        end else
        begin
          memResult.Lines.Assign(html);
  end;
  finally
  html.Free();
end;
end;

procedure TForm1.clHtmlParser1ParseTag(Sender: TObject; ATag: TclHtmlTag);
begin
  if (Trim(ATag.Text) <> '') then
    begin
      memResult.Lines.Add(ATag.Text);
    end;
end;

procedure TForm1.clHttp1ReceiveResponse(Sender: TObject; const AMethod,
  AUrl: string; AResponseHeader: TStrings; ACookies: TclCookieList);
begin
  ShowMessage(AResponseHeader.text);
end;

end.