@Override
    public Connection getConnection(String address, int connectTimeout) throws RemotingException,
                                                                       InterruptedException {
        ensureStarted();
        Url url = this.addressParser.parse(address);
        return this.getConnection(url, connectTimeout);
    }
Shutdown.
<p>
Notice:<br>
  <li>Rpc client can not be used any more after shutdown.
  <li>If you need, you should destroy it, and instantiate another one.
src/main/java/com/alipay/remoting/rpc/RpcClient.java