void SpcServer::onClose(TcpConnectionPtr conn){
cout << conn->toString() << "has closed" << endl;
}
void WordQueryServer::onClose(const TcpConnectionPtr & conn)
{
printf("%s close.\n", conn->toString().c_str());
}
void SpcServer::onConnection(TcpConnectionPtr conn){
cout << conn->toString() << "has connected" << endl;
conn->send("Welcome to SPC Server");
}
