我在编写程序的时候出现了错误,代码如下:

procedure TForm1.Button1Click(Sender: TObject);
var

temp_response:Tstringstream;
temp:TStringList;
begin

url:='http://localhost/login.asp';

try
temp:=TStringList.Create;
temp_response:=Tstringstream.Create('');
temp.Values['username']:=edit1.text;
temp.Values['password']:=edit2.text;

try
idhttp1.ProtocolVersion:=pv1_1;
idHttp1.Request.ContentType := 'application/x-www-form-urlencoded';
idhttp1.post(url,temp,temp_response);
temp.Free;
temp_response.Free;

except

memo1.text:=temp_response.datastring;
temp.Free;
exit;
end;

except

temp_response.Free;
exit;
end;

end;

问题是假设我提交的参数有错误,memo1.text:=temp_response.datastring; 中没有内容. 要么就是接收的内容中只有一句."HTTP/1.1 500 Internal Server Error"
我的目的是想接收到网页错误信息，并对网页的错误信息进行过滤处理，在delphi中编好程序后运行用抓包工具得到其中一个包如下内容：

HTTP/1.1 500 Internal Server Error
Connection: keep-alive
Date: Thu, 06 Jul 2006 00:23:12 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
Content-Length: 347
Content-Type: text/html
Cache-control: private

数据错误

内容是这样的：

HTTP/1.1 500 Internal Server Error
Connection: keep-alive
Date: Thu, 06 Jul 2006 00:23:12 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
Content-Length: 347
Content-Type: text/html
Cache-control: private

＜font face="宋体" size=2＞＜p＞数据错误＜/font＞ ＜font face="宋体" size=2＞