Java 如何将订阅服务器与reactor.core.publisher.Flux连接?
我想用反应堆通量连接用户。但是,我的小示例不会产生任何输出:Java 如何将订阅服务器与reactor.core.publisher.Flux连接?,java,project-reactor,Java,Project Reactor,我想用反应堆通量连接用户。但是,我的小示例不会产生任何输出: public static void main(String[] args) throws InterruptedException { Flux.just("a", "b", "c") .subscribe(new BaseSubscriber<String>() { @Override protected void hook
public static void main(String[] args) throws InterruptedException {
Flux.just("a", "b", "c")
.subscribe(new BaseSubscriber<String>() {
@Override
protected void hookOnSubscribe(Subscription ignored) {
}
@Override
protected void hookOnNext(String value) {
System.out.print(value);
}
});
Thread.sleep(1000);
}
。。。它产生预期的输出:
a
b
c
如何使用订阅服务器从流量接收值?关键是
从源请求更多值。在那通电话之前什么都不会发生
带有BaseSubscriber
的示例:
Flux<String> source = Flux.just("a", "b", "c");
source.subscribe(new BaseSubscriber<String>() {
@Override
protected void hookOnSubscribe(Subscription subscription) {
request(1); // <-- here
}
@Override
protected void hookOnNext(String value) {
request(1); // <-- here
System.out.println(value);
}
});
Flux<String> source = Flux.just("a", "b", "c");
source.subscribe(new Subscriber<String>() {
private Subscription subscription;
@Override
public void onSubscribe(Subscription subscription) {
this.subscription = subscription;
subscription.request(1); // <-- here
}
@Override
public void onNext(String s) {
subscription.request(1); // <-- here
System.out.println(s);
}
@Override
public void onError(Throwable t) {
}
@Override
public void onComplete() {
}
});
关键是从源代码请求更多的值。在那通电话之前什么都不会发生
带有BaseSubscriber
的示例:
Flux<String> source = Flux.just("a", "b", "c");
source.subscribe(new BaseSubscriber<String>() {
@Override
protected void hookOnSubscribe(Subscription subscription) {
request(1); // <-- here
}
@Override
protected void hookOnNext(String value) {
request(1); // <-- here
System.out.println(value);
}
});
Flux<String> source = Flux.just("a", "b", "c");
source.subscribe(new Subscriber<String>() {
private Subscription subscription;
@Override
public void onSubscribe(Subscription subscription) {
this.subscription = subscription;
subscription.request(1); // <-- here
}
@Override
public void onNext(String s) {
subscription.request(1); // <-- here
System.out.println(s);
}
@Override
public void onError(Throwable t) {
}
@Override
public void onComplete() {
}
});
这是正确的。此外,如果您希望源代码尽快发出,您可以在BaseSubscriber.hookOnSubscribe
中执行requestUnbounded()
(此后无需更多请求
)这是正确的。此外,如果希望源代码尽快发出,可以在BaseSubscriber.hookOnSubscribe
中执行requestUnbounded()
(此后无需更多请求
)