初始延迟3秒执行任务

  private static int failureCount = 0;
    private static final int MAX_FAILURES = 3;
    private static final int DELAY_BETWEEN_FAILURES = 5000; // 3 seconds
    @ApiOperation(value="TestRunnable")
    @GetMapping(value = "/TestRunnable")
    public Result TestRunnable () {
        ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(1);

        // 创建一个任务，每次执行都会增加失败次数，并打印信息
        Runnable failureTask = () -> {
            failureCount++;
            System.out.println("Failed " + failureCount + " time(s).");
            if (failureCount >= MAX_FAILURES) {
                System.out.println("Maximum failures reached. Exiting.");
                scheduler.shutdown(); // 停止调度器
            }
        };
        // 初始延迟3秒执行任务，之后每隔3秒执行任务一次，直到达到最大失败次数
        scheduler.scheduleAtFixedRate(failureTask, DELAY_BETWEEN_FAILURES, DELAY_BETWEEN_FAILURES, TimeUnit.MILLISECONDS);
        return Result.OK();
    }