📅  最后修改于: 2020-11-12 05:32:45             🧑  作者: Mango
Schedulers.io()方法创建并返回用于IO绑定工作的Scheduler。线程池可以根据需要扩展。最适合I / O密集型操作。
使用您选择的任何编辑器(例如,C:\> RxJava)创建以下Java程序。
import java.util.Random;
import io.reactivex.Observable;
import io.reactivex.schedulers.Schedulers;
public class ObservableTester {
public static void main(String[] args) throws InterruptedException {
Observable.just("A", "AB", "ABC")
.flatMap(v -> getLengthWithDelay(v)
.doOnNext(s -> System.out.println("Processing Thread "
+ Thread.currentThread().getName()))
.subscribeOn(Schedulers.io()))
.subscribe(length -> System.out.println("Receiver Thread "
+ Thread.currentThread().getName()
+ ", Item length " + length));
Thread.sleep(10000);
}
protected static Observable getLengthWithDelay(String v) {
Random random = new Random();
try {
Thread.sleep(random.nextInt(3) * 1000);
return Observable.just(v.length());
} catch (InterruptedException e) {
e.printStackTrace();
}
return null;
}
}
使用javac编译器编译类,如下所示:
C:\RxJava>javac ObservableTester.java
现在如下运行ObservableTester-
C:\RxJava>java ObservableTester
它应该产生以下输出-
Processing Thread RxCachedThreadScheduler-1
Receiver Thread RxCachedThreadScheduler-1, Item length 1
Processing Thread RxCachedThreadScheduler-1
Receiver Thread RxCachedThreadScheduler-1, Item length 2
Processing Thread RxCachedThreadScheduler-1
Receiver Thread RxCachedThreadScheduler-1, Item length 3