本文章介绍了Delphi XE7写的一个http post的小测试程序，该程序是通过TIdHTTP组件进行post功能的测试，具体就不介绍了，代码很简单，下面是主要的代码

unit Unit1;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, IdBaseComponent, IdComponent,
  IdTCPConnection, IdTCPClient, IdHTTP, Vcl.StdCtrls;

type
  TForm1 = class(TForm)
    Edit1: TEdit;
    Edit2: TEdit;
    Button1: TButton;
    Label1: TLabel;
    Label2: TLabel;
    Memo1: TMemo;
    IdHTTP1: TIdHTTP;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
  sl : TStringList;
  ResponseStream: TMemoryStream;
  resultBytes: TBytes;
begin
  sl := TStringList.Create;
  ResponseStream := TStringStream.Create;
  try
    IdHTTP1.Request.ContentType := 'application/x-www-form-urlencoded';
    sl.Add('id=' + Edit2.Text);
    IdHTTP1.Post(Edit1.Text, sl, ResponseStream);
    ResponseStream.Position := 0;

    SetLength(resultBytes, ResponseStream.Size);
    ResponseStream.ReadBuffer(resultBytes[0], Length(resultBytes));

    Memo1.Lines.Text := TEncoding.UTF8.GetString(resultBytes);
  finally
    sl.Free;
    ResponseStream.Free;
  end;
end;

end.