public function saveThreadTitle($request, $response)
{/*{{{*/
$threadTitle = XString::convertToGbk($request->threadtitle);
if(trim($threadTitle) == "")
{
throw new BizException("标题不能为空");
}
if(XString::getLengthOfGBKString($_REQUEST['threadtitle'])>25)
{
throw new BizException('标题不能超过25字');
}
if(XString::getLengthOfGBKString($_REQUEST['threadtitle'])<5)
{
throw new BizException('标题不能少于5字');
}
AskSessionInfo::modifyThreadTitle($threadTitle);
$response->threadTitle = AskSessionInfo::getThreadTitle();
}/*}}}*/