从http header中取得签名参数
function TkbmMWCustomSmartService3.ProcessRequest(const Func: string; const ClientIdent: TkbmMWClientIdentity; const Args: array of Variant): Variant; var helper:TkbmMWHTTPTransportStreamHelper; ak:string; sign: string; begin Result := '签名错误'; helper := TkbmMWHTTPTransportStreamHelper(RequestTransportStream.Helper); ak := helper.Header.ValueFields['ak'].AsString; sign := helper.Header.ValueFields['sign'].AsString; exit; Result:=inherited ProcessRequest(Func,CLientIdent,Args); end;