Suppliers.memoizeWithExpiration

Suppliers.memoizeWithExpiration

DateTime dateTime = DateTime.now().plusSeconds(2);
        Supplier<String> supplier = Suppliers.memoizeWithExpiration(() -> {
            DateTime now = DateTime.now();
            if (now.getSecondOfDay() == dateTime.getSecondOfDay()) {
                throw new RuntimeException("haha~~" + now.toString("yyyy-MM-hh HH:mm:ss"));
            }
            return "time:" + now.toString("yyy-MM-dd HH:mm:ss");
        }, 1, TimeUnit.SECONDS);
        for (int i = 0; i < 10; i++) {
            try {
                TimeUnit.SECONDS.sleep(1);
                System.out.println(supplier.get());
            } catch (Exception e) {
                System.out.println("异常:"+e.getMessage());
            }
        }