Java CompletableFuture

Java 8：CompletableFuture终极指南

http://www.importnew.com/10815.html

Java CompletableFuture Tutorial with Examples

https://www.callicoder.com/java-8-completablefuture-tutorial/

Java 8: Writing asynchronous code with CompletableFuture

https://www.deadcoderising.com/java8-writing-asynchronous-code-with-completablefuture/

Java8-Lambda编程[5] 并发与CompletableFuture类

http://www.jcodecraeer.com/a/chengxusheji/java/2017/1226/9011.html

Guide To CompletableFuture

https://www.baeldung.com/java-completablefuture