Providers and consumers tags in zfoo

providers： Generally, it shows that you are a producer , In this way, when the server starts , Register yourself with zk in , There's only one element .

consumers： Specify yourself as the interface for consumers to consume . There can be multiple , So direct syncAsk Ask the service provider , In fact, that is rpc, In this way, it will start from zk Get the consumers you care about , To connect them .

adopt NetContext.getConsumer() Get a session（ClientSessionMap An element in ）, To send a message to the service provider .