Delphi Indy控件实现网络验证与asp通信

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, OleCtrls, SHDocVw, StdCtrls, ComCtrls, IdBaseComponent,
IdComponent, IdTCPConnection, IdTCPClient, IdHTTP;

type
TForm1 = class(TForm)
    Edit1: TEdit;
    Button1: TButton;
    Label1: TLabel;
    state: TStatusBar;
    IdHTTP1: TIdHTTP;
    Memo1: TMemo;
    Label2: TLabel;
    Edit2: TEdit;
    Button2: TButton;
    Label3: TLabel;
    Memo2: TMemo;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
private
    { Private declarations }
public
    { Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
name:String;
password:string;

GetURL      :String;
PostURL     :String;
GetHtml     :String;
sParams     :String;
aParams     :TStrings;
aStream     :TStringStream;
begin

IdHTTP1 := TIdHTTP.Create(nil);
aParams := TStringList.Create;
aStream := TStringStream.Create('');
memo1.Lines.Clear ;
name:=edit1.Text ;
password:=edit2.Text ;
GetURL      := 'http://localhost/getinfo.asp'; {登录页面网址}
PostURL     := 'http://localhost/getinfo.asp?password='+password; {提交网址}
sParams     := 'name='+name; {提交参数}
try
    aParams.Clear;
    aParams.Add(sParams);
    GetHtml := IdHTTP1.Get(GetURL); {取登录页面}
    IdHTTP1.Request.ContentType := 'application/x-www-form-urlencoded';
    IdHTTP1.Post(PostURL, aParams, aStream); {提交}
    memo1.lines.Add(aStream.DataString);
    memo1.SelectAll ;
finally
    IdHTTP1.Free;
    aParams.Free;
    aStream.Free;
end;

end;

procedure TForm1.Button2Click(Sender: TObject);
begin
close();
end;

end.

-----------------------------------------------------GetInfo.asp----------------------------------------

<%@LANGUAGE = VBScript.Encode%>
<!--#include file="conn.asp"-->
<%
dim rs,sql,username,regcode,active,password,founderr,msg
username=trim(request("name"))
password=trim(request("password"))
if username="" then
   founderr=true
   msg="username参数无效！"
else
   founderr=false
end if
if password="" then
   founderr=true
   msg="password参数无效！"
else
   founderr=false
end if

if founderr=true then
   response.write msg
else
   set rs=Server.CreateObject("ADODB.RecordSet")
   sql="select * from reguser where username='"&username&"' and password='"&password&"'"
   rs.open sql,conn,1,1
   if rs.recordcount>0 then
      if trim(rs("regcode"))<>"" then
         response.write rs("regcode")
      else
         response.write "返回的用户注册码无效！"
      end if
   else
      response.write "输入的用户名不存在或者密码无效！"
   end if
   rs.close
   set rs=nothing
end if

call closeconn()
%>