简单随机数据算法
文章目录
- 一,需求概述
- 二,实现代码
- 三、测试代码
- 四、测试结果
- 五、源码传送
- 六、效果演示
一,需求概述
系统启动时,读取一组图片数据,通过接口返回给前台,要求:
- 图片随机
- 相邻图片不重复
二,实现代码
借助Queue实现FIFO
/*** 随机索引<br>*/
@Slf4j
public class RandomIndex
{int length;byte[] lock = new byte[0];Queue<Integer> quque = new ConcurrentLinkedQueue<>();/*** 实例化* * @param length 总数据长度*/public RandomIndex(int length){super();this.length = length;}/*** 返回与最近数据不重复的随机索引值* * @return*/public int getIndex(){// 集中1次生成不超过20条数据,多次使用int ququeMaxSize = Math.min(length, 20);if (quque.size() < 3 || quque.size() < ququeMaxSize / 2){synchronized (lock){int add;while (quque.size() < ququeMaxSize){add = RandomUtils.nextInt(0, length);if (!quque.contains(add)){quque.add(add);}}}log.info("{}", quque);}int index = quque.poll();log.info("{} <= {}", index, quque);return index;}
}
三、测试代码
@Slf4j
public class RandomIndexTest
{@Testpublic void test(){try (Scanner sc = new Scanner(System.in)){do{// 索引最大值[2,40),连续获取次数[20,100)int size = RandomUtils.nextInt(2, 40);int count = RandomUtils.nextInt(20, 100);log.info("###### size: {}, count: {}", size, count);RandomIndex randomIndex = new RandomIndex(size);IntStream.range(0, count).forEach(i -> randomIndex.getIndex());log.info("------------输入x退出,回车换行继续------------");} while (!"x".equalsIgnoreCase(sc.nextLine()));log.info("------------成功退出------------");}}
}
四、测试结果
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.s.RandomIndexTest : ###### size: 37, count: 43
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : [2, 6, 35, 11, 14, 28, 17, 12, 13, 21, 33, 36, 24, 30, 31, 25, 18, 0, 26, 32]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 2 <= [6, 35, 11, 14, 28, 17, 12, 13, 21, 33, 36, 24, 30, 31, 25, 18, 0, 26, 32]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 6 <= [35, 11, 14, 28, 17, 12, 13, 21, 33, 36, 24, 30, 31, 25, 18, 0, 26, 32]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 35 <= [11, 14, 28, 17, 12, 13, 21, 33, 36, 24, 30, 31, 25, 18, 0, 26, 32]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 11 <= [14, 28, 17, 12, 13, 21, 33, 36, 24, 30, 31, 25, 18, 0, 26, 32]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 14 <= [28, 17, 12, 13, 21, 33, 36, 24, 30, 31, 25, 18, 0, 26, 32]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 28 <= [17, 12, 13, 21, 33, 36, 24, 30, 31, 25, 18, 0, 26, 32]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 17 <= [12, 13, 21, 33, 36, 24, 30, 31, 25, 18, 0, 26, 32]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 12 <= [13, 21, 33, 36, 24, 30, 31, 25, 18, 0, 26, 32]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 13 <= [21, 33, 36, 24, 30, 31, 25, 18, 0, 26, 32]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 21 <= [33, 36, 24, 30, 31, 25, 18, 0, 26, 32]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 33 <= [36, 24, 30, 31, 25, 18, 0, 26, 32]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : [36, 24, 30, 31, 25, 18, 0, 26, 32, 17, 14, 2, 1, 34, 10, 4, 22, 6, 3, 8]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 36 <= [24, 30, 31, 25, 18, 0, 26, 32, 17, 14, 2, 1, 34, 10, 4, 22, 6, 3, 8]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 24 <= [30, 31, 25, 18, 0, 26, 32, 17, 14, 2, 1, 34, 10, 4, 22, 6, 3, 8]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 30 <= [31, 25, 18, 0, 26, 32, 17, 14, 2, 1, 34, 10, 4, 22, 6, 3, 8]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 31 <= [25, 18, 0, 26, 32, 17, 14, 2, 1, 34, 10, 4, 22, 6, 3, 8]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 25 <= [18, 0, 26, 32, 17, 14, 2, 1, 34, 10, 4, 22, 6, 3, 8]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 18 <= [0, 26, 32, 17, 14, 2, 1, 34, 10, 4, 22, 6, 3, 8]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 0 <= [26, 32, 17, 14, 2, 1, 34, 10, 4, 22, 6, 3, 8]
2024-05-28 22:41:03.107 INFO 4788 --- [main] c.f.h.c.RandomIndex : 26 <= [32, 17, 14, 2, 1, 34, 10, 4, 22, 6, 3, 8]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : 32 <= [17, 14, 2, 1, 34, 10, 4, 22, 6, 3, 8]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : 17 <= [14, 2, 1, 34, 10, 4, 22, 6, 3, 8]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : 14 <= [2, 1, 34, 10, 4, 22, 6, 3, 8]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : [2, 1, 34, 10, 4, 22, 6, 3, 8, 20, 18, 16, 29, 35, 30, 27, 25, 23, 21, 33]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : 2 <= [1, 34, 10, 4, 22, 6, 3, 8, 20, 18, 16, 29, 35, 30, 27, 25, 23, 21, 33]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : 1 <= [34, 10, 4, 22, 6, 3, 8, 20, 18, 16, 29, 35, 30, 27, 25, 23, 21, 33]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : 34 <= [10, 4, 22, 6, 3, 8, 20, 18, 16, 29, 35, 30, 27, 25, 23, 21, 33]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : 10 <= [4, 22, 6, 3, 8, 20, 18, 16, 29, 35, 30, 27, 25, 23, 21, 33]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : 4 <= [22, 6, 3, 8, 20, 18, 16, 29, 35, 30, 27, 25, 23, 21, 33]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : 22 <= [6, 3, 8, 20, 18, 16, 29, 35, 30, 27, 25, 23, 21, 33]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : 6 <= [3, 8, 20, 18, 16, 29, 35, 30, 27, 25, 23, 21, 33]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : 3 <= [8, 20, 18, 16, 29, 35, 30, 27, 25, 23, 21, 33]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : 8 <= [20, 18, 16, 29, 35, 30, 27, 25, 23, 21, 33]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : 20 <= [18, 16, 29, 35, 30, 27, 25, 23, 21, 33]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : 18 <= [16, 29, 35, 30, 27, 25, 23, 21, 33]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : [16, 29, 35, 30, 27, 25, 23, 21, 33, 15, 1, 17, 9, 22, 12, 14, 20, 18, 24, 0]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : 16 <= [29, 35, 30, 27, 25, 23, 21, 33, 15, 1, 17, 9, 22, 12, 14, 20, 18, 24, 0]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : 29 <= [35, 30, 27, 25, 23, 21, 33, 15, 1, 17, 9, 22, 12, 14, 20, 18, 24, 0]
2024-05-28 22:41:03.108 INFO 4788 --- [main] c.f.h.c.RandomIndex : 35 <= [30, 27, 25, 23, 21, 33, 15, 1, 17, 9, 22, 12, 14, 20, 18, 24, 0]
2024-05-28 22:41:03.109 INFO 4788 --- [main] c.f.h.c.RandomIndex : 30 <= [27, 25, 23, 21, 33, 15, 1, 17, 9, 22, 12, 14, 20, 18, 24, 0]
2024-05-28 22:41:03.109 INFO 4788 --- [main] c.f.h.c.RandomIndex : 27 <= [25, 23, 21, 33, 15, 1, 17, 9, 22, 12, 14, 20, 18, 24, 0]
2024-05-28 22:41:03.109 INFO 4788 --- [main] c.f.h.c.RandomIndex : 25 <= [23, 21, 33, 15, 1, 17, 9, 22, 12, 14, 20, 18, 24, 0]
2024-05-28 22:41:03.109 INFO 4788 --- [main] c.f.h.c.RandomIndex : 23 <= [21, 33, 15, 1, 17, 9, 22, 12, 14, 20, 18, 24, 0]
2024-05-28 22:41:03.109 INFO 4788 --- [main] c.f.h.c.RandomIndex : 21 <= [33, 15, 1, 17, 9, 22, 12, 14, 20, 18, 24, 0]
2024-05-28 22:41:03.109 INFO 4788 --- [main] c.f.h.c.RandomIndex : 33 <= [15, 1, 17, 9, 22, 12, 14, 20, 18, 24, 0]
2024-05-28 22:41:03.109 INFO 4788 --- [main] c.f.h.c.RandomIndex : 15 <= [1, 17, 9, 22, 12, 14, 20, 18, 24, 0]
2024-05-28 22:41:03.109 INFO 4788 --- [main] c.f.h.s.RandomIndexTest : ------------输入x退出,回车换行继续------------2024-05-28 22:41:04.146 INFO 4788 --- [main] c.f.h.s.RandomIndexTest : ###### size: 20, count: 65
2024-05-28 22:41:04.146 INFO 4788 --- [main] c.f.h.c.RandomIndex : [12, 2, 17, 14, 16, 3, 18, 19, 9, 13, 10, 11, 6, 1, 5, 4, 8, 15, 7, 0]
2024-05-28 22:41:04.146 INFO 4788 --- [main] c.f.h.c.RandomIndex : 12 <= [2, 17, 14, 16, 3, 18, 19, 9, 13, 10, 11, 6, 1, 5, 4, 8, 15, 7, 0]
2024-05-28 22:41:04.146 INFO 4788 --- [main] c.f.h.c.RandomIndex : 2 <= [17, 14, 16, 3, 18, 19, 9, 13, 10, 11, 6, 1, 5, 4, 8, 15, 7, 0]
2024-05-28 22:41:04.146 INFO 4788 --- [main] c.f.h.c.RandomIndex : 17 <= [14, 16, 3, 18, 19, 9, 13, 10, 11, 6, 1, 5, 4, 8, 15, 7, 0]
2024-05-28 22:41:04.146 INFO 4788 --- [main] c.f.h.c.RandomIndex : 14 <= [16, 3, 18, 19, 9, 13, 10, 11, 6, 1, 5, 4, 8, 15, 7, 0]
2024-05-28 22:41:04.146 INFO 4788 --- [main] c.f.h.c.RandomIndex : 16 <= [3, 18, 19, 9, 13, 10, 11, 6, 1, 5, 4, 8, 15, 7, 0]
2024-05-28 22:41:04.147 INFO 4788 --- [main] c.f.h.c.RandomIndex : 3 <= [18, 19, 9, 13, 10, 11, 6, 1, 5, 4, 8, 15, 7, 0]
2024-05-28 22:41:04.147 INFO 4788 --- [main] c.f.h.c.RandomIndex : 18 <= [19, 9, 13, 10, 11, 6, 1, 5, 4, 8, 15, 7, 0]
2024-05-28 22:41:04.147 INFO 4788 --- [main] c.f.h.c.RandomIndex : 19 <= [9, 13, 10, 11, 6, 1, 5, 4, 8, 15, 7, 0]
2024-05-28 22:41:04.147 INFO 4788 --- [main] c.f.h.c.RandomIndex : 9 <= [13, 10, 11, 6, 1, 5, 4, 8, 15, 7, 0]
2024-05-28 22:41:04.147 INFO 4788 --- [main] c.f.h.c.RandomIndex : 13 <= [10, 11, 6, 1, 5, 4, 8, 15, 7, 0]
2024-05-28 22:41:04.147 INFO 4788 --- [main] c.f.h.c.RandomIndex : 10 <= [11, 6, 1, 5, 4, 8, 15, 7, 0]
2024-05-28 22:41:04.147 INFO 4788 --- [main] c.f.h.c.RandomIndex : [11, 6, 1, 5, 4, 8, 15, 7, 0, 13, 2, 18, 17, 14, 19, 9, 16, 3, 10, 12]
2024-05-28 22:41:04.147 INFO 4788 --- [main] c.f.h.c.RandomIndex : 11 <= [6, 1, 5, 4, 8, 15, 7, 0, 13, 2, 18, 17, 14, 19, 9, 16, 3, 10, 12]
2024-05-28 22:41:04.147 INFO 4788 --- [main] c.f.h.c.RandomIndex : 6 <= [1, 5, 4, 8, 15, 7, 0, 13, 2, 18, 17, 14, 19, 9, 16, 3, 10, 12]
2024-05-28 22:41:04.147 INFO 4788 --- [main] c.f.h.c.RandomIndex : 1 <= [5, 4, 8, 15, 7, 0, 13, 2, 18, 17, 14, 19, 9, 16, 3, 10, 12]
2024-05-28 22:41:04.147 INFO 4788 --- [main] c.f.h.c.RandomIndex : 5 <= [4, 8, 15, 7, 0, 13, 2, 18, 17, 14, 19, 9, 16, 3, 10, 12]
2024-05-28 22:41:04.147 INFO 4788 --- [main] c.f.h.c.RandomIndex : 4 <= [8, 15, 7, 0, 13, 2, 18, 17, 14, 19, 9, 16, 3, 10, 12]
2024-05-28 22:41:04.147 INFO 4788 --- [main] c.f.h.c.RandomIndex : 8 <= [15, 7, 0, 13, 2, 18, 17, 14, 19, 9, 16, 3, 10, 12]
2024-05-28 22:41:04.147 INFO 4788 --- [main] c.f.h.c.RandomIndex : 15 <= [7, 0, 13, 2, 18, 17, 14, 19, 9, 16, 3, 10, 12]
2024-05-28 22:41:04.147 INFO 4788 --- [main] c.f.h.c.RandomIndex : 7 <= [0, 13, 2, 18, 17, 14, 19, 9, 16, 3, 10, 12]
2024-05-28 22:41:04.147 INFO 4788 --- [main] c.f.h.c.RandomIndex : 0 <= [13, 2, 18, 17, 14, 19, 9, 16, 3, 10, 12]
2024-05-28 22:41:04.147 INFO 4788 --- [main] c.f.h.c.RandomIndex : 13 <= [2, 18, 17, 14, 19, 9, 16, 3, 10, 12]
2024-05-28 22:41:04.148 INFO 4788 --- [main] c.f.h.c.RandomIndex : 2 <= [18, 17, 14, 19, 9, 16, 3, 10, 12]
2024-05-28 22:41:04.148 INFO 4788 --- [main] c.f.h.c.RandomIndex : [18, 17, 14, 19, 9, 16, 3, 10, 12, 4, 8, 11, 13, 0, 6, 7, 2, 5, 15, 1]
2024-05-28 22:41:04.148 INFO 4788 --- [main] c.f.h.c.RandomIndex : 18 <= [17, 14, 19, 9, 16, 3, 10, 12, 4, 8, 11, 13, 0, 6, 7, 2, 5, 15, 1]
2024-05-28 22:41:04.148 INFO 4788 --- [main] c.f.h.c.RandomIndex : 17 <= [14, 19, 9, 16, 3, 10, 12, 4, 8, 11, 13, 0, 6, 7, 2, 5, 15, 1]
2024-05-28 22:41:04.148 INFO 4788 --- [main] c.f.h.c.RandomIndex : 14 <= [19, 9, 16, 3, 10, 12, 4, 8, 11, 13, 0, 6, 7, 2, 5, 15, 1]
2024-05-28 22:41:04.148 INFO 4788 --- [main] c.f.h.c.RandomIndex : 19 <= [9, 16, 3, 10, 12, 4, 8, 11, 13, 0, 6, 7, 2, 5, 15, 1]
2024-05-28 22:41:04.148 INFO 4788 --- [main] c.f.h.c.RandomIndex : 9 <= [16, 3, 10, 12, 4, 8, 11, 13, 0, 6, 7, 2, 5, 15, 1]
2024-05-28 22:41:04.148 INFO 4788 --- [main] c.f.h.c.RandomIndex : 16 <= [3, 10, 12, 4, 8, 11, 13, 0, 6, 7, 2, 5, 15, 1]
2024-05-28 22:41:04.148 INFO 4788 --- [main] c.f.h.c.RandomIndex : 3 <= [10, 12, 4, 8, 11, 13, 0, 6, 7, 2, 5, 15, 1]
2024-05-28 22:41:04.148 INFO 4788 --- [main] c.f.h.c.RandomIndex : 10 <= [12, 4, 8, 11, 13, 0, 6, 7, 2, 5, 15, 1]
2024-05-28 22:41:04.148 INFO 4788 --- [main] c.f.h.c.RandomIndex : 12 <= [4, 8, 11, 13, 0, 6, 7, 2, 5, 15, 1]
2024-05-28 22:41:04.148 INFO 4788 --- [main] c.f.h.c.RandomIndex : 4 <= [8, 11, 13, 0, 6, 7, 2, 5, 15, 1]
2024-05-28 22:41:04.148 INFO 4788 --- [main] c.f.h.c.RandomIndex : 8 <= [11, 13, 0, 6, 7, 2, 5, 15, 1]
2024-05-28 22:41:04.148 INFO 4788 --- [main] c.f.h.c.RandomIndex : [11, 13, 0, 6, 7, 2, 5, 15, 1, 10, 4, 14, 17, 18, 12, 8, 16, 3, 9, 19]
2024-05-28 22:41:04.149 INFO 4788 --- [main] c.f.h.c.RandomIndex : 11 <= [13, 0, 6, 7, 2, 5, 15, 1, 10, 4, 14, 17, 18, 12, 8, 16, 3, 9, 19]
2024-05-28 22:41:04.149 INFO 4788 --- [main] c.f.h.c.RandomIndex : 13 <= [0, 6, 7, 2, 5, 15, 1, 10, 4, 14, 17, 18, 12, 8, 16, 3, 9, 19]
2024-05-28 22:41:04.149 INFO 4788 --- [main] c.f.h.c.RandomIndex : 0 <= [6, 7, 2, 5, 15, 1, 10, 4, 14, 17, 18, 12, 8, 16, 3, 9, 19]
2024-05-28 22:41:04.149 INFO 4788 --- [main] c.f.h.c.RandomIndex : 6 <= [7, 2, 5, 15, 1, 10, 4, 14, 17, 18, 12, 8, 16, 3, 9, 19]
2024-05-28 22:41:04.149 INFO 4788 --- [main] c.f.h.c.RandomIndex : 7 <= [2, 5, 15, 1, 10, 4, 14, 17, 18, 12, 8, 16, 3, 9, 19]
2024-05-28 22:41:04.149 INFO 4788 --- [main] c.f.h.c.RandomIndex : 2 <= [5, 15, 1, 10, 4, 14, 17, 18, 12, 8, 16, 3, 9, 19]
2024-05-28 22:41:04.149 INFO 4788 --- [main] c.f.h.c.RandomIndex : 5 <= [15, 1, 10, 4, 14, 17, 18, 12, 8, 16, 3, 9, 19]
2024-05-28 22:41:04.149 INFO 4788 --- [main] c.f.h.c.RandomIndex : 15 <= [1, 10, 4, 14, 17, 18, 12, 8, 16, 3, 9, 19]
2024-05-28 22:41:04.149 INFO 4788 --- [main] c.f.h.c.RandomIndex : 1 <= [10, 4, 14, 17, 18, 12, 8, 16, 3, 9, 19]
2024-05-28 22:41:04.149 INFO 4788 --- [main] c.f.h.c.RandomIndex : 10 <= [4, 14, 17, 18, 12, 8, 16, 3, 9, 19]
2024-05-28 22:41:04.149 INFO 4788 --- [main] c.f.h.c.RandomIndex : 4 <= [14, 17, 18, 12, 8, 16, 3, 9, 19]
2024-05-28 22:41:04.149 INFO 4788 --- [main] c.f.h.c.RandomIndex : [14, 17, 18, 12, 8, 16, 3, 9, 19, 2, 0, 7, 4, 10, 13, 6, 1, 5, 11, 15]
2024-05-28 22:41:04.149 INFO 4788 --- [main] c.f.h.c.RandomIndex : 14 <= [17, 18, 12, 8, 16, 3, 9, 19, 2, 0, 7, 4, 10, 13, 6, 1, 5, 11, 15]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 17 <= [18, 12, 8, 16, 3, 9, 19, 2, 0, 7, 4, 10, 13, 6, 1, 5, 11, 15]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 18 <= [12, 8, 16, 3, 9, 19, 2, 0, 7, 4, 10, 13, 6, 1, 5, 11, 15]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 12 <= [8, 16, 3, 9, 19, 2, 0, 7, 4, 10, 13, 6, 1, 5, 11, 15]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 8 <= [16, 3, 9, 19, 2, 0, 7, 4, 10, 13, 6, 1, 5, 11, 15]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 16 <= [3, 9, 19, 2, 0, 7, 4, 10, 13, 6, 1, 5, 11, 15]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 3 <= [9, 19, 2, 0, 7, 4, 10, 13, 6, 1, 5, 11, 15]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 9 <= [19, 2, 0, 7, 4, 10, 13, 6, 1, 5, 11, 15]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 19 <= [2, 0, 7, 4, 10, 13, 6, 1, 5, 11, 15]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 2 <= [0, 7, 4, 10, 13, 6, 1, 5, 11, 15]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 0 <= [7, 4, 10, 13, 6, 1, 5, 11, 15]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : [7, 4, 10, 13, 6, 1, 5, 11, 15, 12, 0, 18, 16, 2, 3, 19, 8, 14, 17, 9]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 7 <= [4, 10, 13, 6, 1, 5, 11, 15, 12, 0, 18, 16, 2, 3, 19, 8, 14, 17, 9]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 4 <= [10, 13, 6, 1, 5, 11, 15, 12, 0, 18, 16, 2, 3, 19, 8, 14, 17, 9]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 10 <= [13, 6, 1, 5, 11, 15, 12, 0, 18, 16, 2, 3, 19, 8, 14, 17, 9]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 13 <= [6, 1, 5, 11, 15, 12, 0, 18, 16, 2, 3, 19, 8, 14, 17, 9]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 6 <= [1, 5, 11, 15, 12, 0, 18, 16, 2, 3, 19, 8, 14, 17, 9]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 1 <= [5, 11, 15, 12, 0, 18, 16, 2, 3, 19, 8, 14, 17, 9]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 5 <= [11, 15, 12, 0, 18, 16, 2, 3, 19, 8, 14, 17, 9]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 11 <= [15, 12, 0, 18, 16, 2, 3, 19, 8, 14, 17, 9]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 15 <= [12, 0, 18, 16, 2, 3, 19, 8, 14, 17, 9]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.c.RandomIndex : 12 <= [0, 18, 16, 2, 3, 19, 8, 14, 17, 9]
2024-05-28 22:41:04.150 INFO 4788 --- [main] c.f.h.s.RandomIndexTest : ------------输入x退出,回车换行继续------------
五、源码传送
https://gitcode.com/00fly/springboot-hello/blob/main/src/main/java/com/fly/hello/web/RestPicController.java
git clone https://gitcode.com/00fly/springboot-hello.git
六、效果演示

有任何问题和建议,都可以向我提问讨论,大家一起进步,谢谢!
-over-
相关文章:
简单随机数据算法
文章目录 一,需求概述二,实现代码三、测试代码四、测试结果五、源码传送六、效果演示 一,需求概述 系统启动时,读取一组图片数据,通过接口返回给前台,要求: 图片随机相邻图片不重复 二&#…...
js画思维导图代码2
这段代码是一个使用Vue.js和D3.js构建的树形图组件。它是一个Vue组件,用于创建和显示一个交互式的树形结构图。下面是对这段代码的简要分析: 模板部分 (<template>): 定义了组件的HTML结构,包括一个隐藏的提示框(#tooltip)和一个用于显…...
使用 Flask 实现异步请求处理
文章目录 为什么需要异步请求处理?在 Flask 中实现异步请求处理使用 Flask-Cors 扩展 总结 在开发 Web 应用程序时,异步请求处理是提高性能和并发能力的重要方法之一。Flask 是一个轻量级的 Web 框架,它提供了易于使用的工具来实现异步请求处…...
关于c++的通过cin.get()维持黑框的思考
1.前言 由于本科没有学过c语言,研究生阶段接触c上手有点困难,今天遇到关于通过cin.get()来让黑框维持的原因。 2.思考 cin.get()维持黑框不消失的原因一言蔽之就是等待输入。等待键盘的输入内容并回车(一般是回车)后cin.get()才…...
fastadmin接口输出图片 自动拼接网站URL
先自定义常量 1.文件接口路径 修改核心文件 application\common\controller\Api.php/*** 构造方法* access public* param Request $request Request 对象*/public function __construct(Request $request null){$this->request is_null($request) ? Request::instance…...
VMware Workstation 不可恢复错误:(vmui) 错误代码0xc0000094
软件版本 vmware 17 错误情况 VMware Workstation 不可恢复错误:(vmui) Exception 0xc0000094 has occurred. 问题原因 VMware升级到17.0后,将虚拟机环境的【硬件兼容性】升级至Workstation 17.X后,无法修改设备参数。 解决办法 打开需…...
DockerNetwork
Docker Network Docker Network 是 Docker 引擎提供的一种功能,用于管理 Docker 容器之间以及容器与外部网络之间的网络通信。它允许用户定义和配置容器的网络环境,以便容器之间可以相互通信,并与外部网络进行连接。 Docker Network 提供了以…...
QT学习(20):QStyle类
Qt包含一组QStyle子类,这些子类(QWindowsStyle,QMacStyle等)模拟Qt支持的不同平台的样式,默认情况下,这些样式内置在Qt GUI模块中,样式也可以作为插件提供。 Qt的内置widgets使用QStyle来执行几…...
hadoop学习之MapReduce案例:输出每个班级中的成绩前三名的学生
hadoop学习之MapReduce案例:输出每个班级中的成绩前三名的学生 所要处理的数据案例: 1500100001 施笑槐,22,女,文科六班,406 1500100002 吕金鹏,24,男,文科六班,440 1500100003 单乐蕊,22,女,理科六班,359 1500100004 葛德曜,24,男,理科三班,421 15001…...
【亲测,安卓版】快速将网页网址打包成安卓app,一键将网页打包成app,免安装纯绿色版本,快速将网页网址打包成安卓apk
背景:部分客户需求将自己网站打包成app,供用户在浏览器安装使用、 网页网址快速生成app 准备材料操作流程第一步:打开HBuilder X新建项目第二步创建Wap2App项目第三步修改App图标第四步发布app第五步查看apk 准备材料 1.需要打包的网页 2.ap…...
学习thinkphp的循环标签
1.FOREACH标签 foreach标签的用法和PHP语法非常接近,用于循环输出数组或者对象的属性,用法如下: $list User::all(); View::assign(list,$list); 模板文件中可以这样输出 {foreach $list as $key>$vo } {$vo.id}:{$vo.name} {/foreac…...
根据标签名递归读取xml字符串中element
工具类: /*** 根据标签名递归读取xml字符串中element* 例:* String xml * "<req>\n" * "<tag1></tag1>\n" * "<tag2>\n" * " <tag4></tag4>\n" * "</tag2>\n&…...
Ovid医学库文献如何在家查找下载
今天讲的数据库是一个知名医学库——Ovid Ovid隶属于威科集团的健康出版事业集团,与LWW、Adis等公司属于姊妹公司。Ovid数据库在医学外文文献数据库方面占据绝对地位,目前已有包涵人文、科技等多领域数据库300个,其中80多个是生物医学数据库…...
在已创建的git工程中添加.gitignore
有些代码创建git时,为了方便将所有文件都加入了git管理,但实际有些库的Makefile文件和编译目录的文件不需要加入管理,否则每次提交或编译后,git diff将看到非常多的冗余信息。而我们修改的核心代码都淹没在这些大量无用的信息里面…...
MR混合现实情景实训教学系统在临床医学课堂上的应用
MR混合现实情景实训教学系统在临床医学课堂上的应用可以带来许多积极的影响,具体表现在以下几个方面: 1. 增强教学的真实感和互动性:MR混合现实技术能够创建出高度逼真的模拟临床环境,使学生能够身临其境地体验临床实践。这种技术…...
就说说开一家公司的流程和成本
本人在进互联网公司和外企前,也和一位老板合作做,在一家小微公司里做过技术负责人,所以也了解开办一家公司的流程以及公司运作的成本。 通过本文大家其实能看到创业的难度。具体来讲,开办并维持着一家公司,其实需要操…...
【前端】面试八股文——数组扁平化的实现
【前端】面试八股文——数组扁平化的实现 数组扁平化是指将一个多维数组转换为一维数组。在前端开发中,处理这样的数组结构是很常见的需求。本文将详细介绍几种实现数组扁平化的方法,以帮助读者更好地理解和应用这些技术。 1. 使用 Array.prototype.fl…...
2005-2022年各省全体居民人均可支配收入数据(无缺失)
2005-2022年各省全体居民人均可支配收入数据(无缺失) 1、时间:2005-2022年 2、来源:国家统计局、统计年鉴 3、指标:全体居民人均可支配收入 4、范围:31省 5、缺失情况:无缺失 6、指标解释…...
JVM调优,何时调优,怎么调优,面试的时候调优
一般Java面试的时候,面试官都喜欢问一个面试题,就是JVM调优的面试题,相信超过99%的小伙伴都没有过JVM调优的经历。说实话,我以前也没有相关的调优经验,也非常喜欢百度,这个问题到底想问什么,应该…...
朗之万动力学(Langevin dynamics)
朗之万动力学(Langevin dynamics) 是一种模拟经典粒子运动的方法,常用于物理、化学和材料科学等领域。它是由法国物理学家保罗朗之万(Paul Langevin)于1908年提出的,用于描述布朗运动,即微小粒…...
应用升级/灾备测试时使用guarantee 闪回点迅速回退
1.场景 应用要升级,当升级失败时,数据库回退到升级前. 要测试系统,测试完成后,数据库要回退到测试前。 相对于RMAN恢复需要很长时间, 数据库闪回只需要几分钟。 2.技术实现 数据库设置 2个db_recovery参数 创建guarantee闪回点,不需要开启数据库闪回。…...
基于FPGA的PID算法学习———实现PID比例控制算法
基于FPGA的PID算法学习 前言一、PID算法分析二、PID仿真分析1. PID代码2.PI代码3.P代码4.顶层5.测试文件6.仿真波形 总结 前言 学习内容:参考网站: PID算法控制 PID即:Proportional(比例)、Integral(积分&…...
【JavaEE】-- HTTP
1. HTTP是什么? HTTP(全称为"超文本传输协议")是一种应用非常广泛的应用层协议,HTTP是基于TCP协议的一种应用层协议。 应用层协议:是计算机网络协议栈中最高层的协议,它定义了运行在不同主机上…...
用docker来安装部署freeswitch记录
今天刚才测试一个callcenter的项目,所以尝试安装freeswitch 1、使用轩辕镜像 - 中国开发者首选的专业 Docker 镜像加速服务平台 编辑下面/etc/docker/daemon.json文件为 {"registry-mirrors": ["https://docker.xuanyuan.me"] }同时可以进入轩…...
ArcGIS Pro制作水平横向图例+多级标注
今天介绍下载ArcGIS Pro中如何设置水平横向图例。 之前我们介绍了ArcGIS的横向图例制作:ArcGIS横向、多列图例、顺序重排、符号居中、批量更改图例符号等等(ArcGIS出图图例8大技巧),那这次我们看看ArcGIS Pro如何更加快捷的操作。…...
有限自动机到正规文法转换器v1.0
1 项目简介 这是一个功能强大的有限自动机(Finite Automaton, FA)到正规文法(Regular Grammar)转换器,它配备了一个直观且完整的图形用户界面,使用户能够轻松地进行操作和观察。该程序基于编译原理中的经典…...
大语言模型(LLM)中的KV缓存压缩与动态稀疏注意力机制设计
随着大语言模型(LLM)参数规模的增长,推理阶段的内存占用和计算复杂度成为核心挑战。传统注意力机制的计算复杂度随序列长度呈二次方增长,而KV缓存的内存消耗可能高达数十GB(例如Llama2-7B处理100K token时需50GB内存&a…...
DingDing机器人群消息推送
文章目录 1 新建机器人2 API文档说明3 代码编写 1 新建机器人 点击群设置 下滑到群管理的机器人,点击进入 添加机器人 选择自定义Webhook服务 点击添加 设置安全设置,详见说明文档 成功后,记录Webhook 2 API文档说明 点击设置说明 查看自…...
论文阅读:LLM4Drive: A Survey of Large Language Models for Autonomous Driving
地址:LLM4Drive: A Survey of Large Language Models for Autonomous Driving 摘要翻译 自动驾驶技术作为推动交通和城市出行变革的催化剂,正从基于规则的系统向数据驱动策略转变。传统的模块化系统受限于级联模块间的累积误差和缺乏灵活性的预设规则。…...
6个月Python学习计划 Day 16 - 面向对象编程(OOP)基础
第三周 Day 3 🎯 今日目标 理解类(class)和对象(object)的关系学会定义类的属性、方法和构造函数(init)掌握对象的创建与使用初识封装、继承和多态的基本概念(预告) &a…...
