@Override
    public Connection create(Url url) throws RemotingException {
        Connection conn;
        try {
            conn = this.connectionFactory.createConnection(url);
        } catch (Exception e) {
            throw new RemotingException("Create connection failed. The address is "
                                        + url.getOriginUrl(), e);
        }
        return conn;
    }
@see com.alipay.remoting.ConnectionManager#create(com.alipay.remoting.Url)
src/main/java/com/alipay/remoting/DefaultConnectionManager.java