前提

1、JDK1.8

2、引入jar包

<!--graalvm.js --><dependency> <groupId>org.graalvm.js</groupId> <artifactId>js</artifactId> <version>1.0.0-rc12</version></dependency>

运行

package com.terwergreen;import org.graalvm.polyglot.Context;import org.graalvm.polyglot.Value;import java.util.function.Consumer;public class Main { private Object renderedObject = null; private Consumer<Object> fnResolve = object -> { renderedObject = object; System.out.println("fnResolve=>promiseResolved"); }; private Consumer<Object> fnRejected = object -> { renderedObject = object; System.out.println("fnRejected=>promiseRejected"); }; private void execute() { try (Context context = Context.newBuilder("js").allowAllAccess(true).build()) { Value eval = context.eval("js", "(async function() { return 'Hello World' });" ); eval.execute().invokeMember("then", fnResolve, fnRejected); System.out.println("renderedObject = " + renderedObject); } catch (Exception e) { e.printStackTrace(); } } public static void main(String[] args) { Main main = new Main(); main.execute(); }}