Java响应式层级 #

Level 0: Thread & Runnable (Java 1+)
Level 1: ExecutorService, Callable, Future (Java 5+)
Level 2: ForkJoinPool (Java 7+)
Level 3: CompletableFuture (Java 8+)
Level 4: reactive streams, Flow (Java 9+)
Level 5: HTTP/2 client (Java 11+)
Level 6: Reactive libraries (RxJava, Reactor)
Level 7: Reactive services (Vert.x, Spring, Kafka)

Flow #

Flow.Publisher
Flow.Subscriber
Flow.Subscription
	# link publisher和subscriber
Flow.Processor
	# subscriber和publisher的act

ReactiveX #

Flux
Mono

RxJava #

模型	
	Observable
	Subscriber

Reactor #

Vert.x #

AKKA #