模仿线程扣除

@SpringBootTest
public class DanTest {
    @Resource(name = "redisTemplate")
    private ValueOperations valueOperations;

    private final String key123 = "class#208";

    @Test
    public void DanTest() {
        //设置商品库存
        valueOperations.set(key123, 5l);
        ExecutorService executorService = Executors.newCachedThreadPool();
        //模仿并发操作
        for (int i = 0; i < 10; i++) {
            Long decrement = valueOperations.decrement(key123, 1);
            executorService.execute(() -> {
                if (decrement >= 0) {

                    System.out.println(StrUtil.format("扣除成功，线程{},剩余量{}", Thread.currentThread().getName(), decrement));
                } else {

                    System.out.println(StrUtil.format("扣除失败，线程{},剩余量{}", Thread.currentThread().getName(), decrement));

                }

            });

        }

        ThreadUtil.safeSleep(1000 * 10);
    }

}