如何实现ExecutorService以基于轮换的方式执行任务？

ThreadPoolExecutor为afterExecution提供了一个扩展点，您可以在其中将作业放回队列的末尾。

public class TaskRepeatingThreadPoolExecutor extends ThreadPoolExecutor {    public TaskRepeatingThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue) {        super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue);    }    @Override    protected void afterExecute(Runnable r, Throwable t) {        super.afterExecute(r, t);        this.submit(r);    }}

当然，您将需要做更多的工作来自己实例化它，而无需

ExecutorService