@Override
    public Connection create(String ip, int port, int connectTimeout) throws RemotingException {
        try {
            return this.connectionFactory.createConnection(ip, port, connectTimeout);
        } catch (Exception e) {
            throw new RemotingException("Create connection failed. The address is " + ip + ":"
                                        + port, e);
        }
    }
@see com.alipay.remoting.ConnectionManager#create(java.lang.String, int, int)
src/main/java/com/alipay/remoting/DefaultConnectionManager.java