void WordQueryServer::onMessage(const TcpConnectionPtr & conn)
{
	string msg(conn->receive());
	size_t pos = msg.find('\n');
	msg = msg.substr(0, pos);
	cout << "client:" << msg << ",size:" << msg.size() << endl;

	//string ret = _wordQuery.doQuery(msg);
	//cout << "result's size:" << ret.size() << endl;
	//conn->send(ret);

	_pool.addTask(std::bind(&WordQueryServer::doTaskThread, this, conn, msg));
}