当前位置： 首页 > news >正文

简单随机数据算法

news 2025/12/19 6:16:49

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

在这里插入图片描述

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&#xff0c;需求概述二&#xff0c;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&#xff0c;需求概述 系统启动时&#xff0c;读取一组图片数据&#xff0c;通过接口返回给前台&#xff0c;要求&#xff1a; 图片随机相邻图片不重复 二&#…...

编程日记 2024/5/29 3:43:12

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&#xff0c;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&#xff1a; 模板部分 (<template>): 定义了组件的HTML结构&#xff0c;包括一个隐藏的提示框(#tooltip)和一个用于显…...

编程日记 2024/5/29 3:42:10

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&#xff1f;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&#xff0c;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&#xff0c;它提供了易于使用的工具来实现异步请求处…...

编程日记 2024/5/29 3:41:09

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&#xff0c;研究生阶段接触c上手有点困难&#xff0c;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&#xff08;一般是回车&#xff09;后cin.get()才…...

编程日记 2024/5/29 3:40:09

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…...

编程日记 2024/5/29 3:39:07

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&#xff1a;(vmui) Exception 0xc0000094 has occurred. 问题原因 VMware升级到17.0后&#xff0c;将虚拟机环境的【硬件兼容性】升级至Workstation 17.X后&#xff0c;无法修改设备参数。 解决办法 打开需…...

编程日记 2024/5/29 3:38:06

DockerNetwork

Docker Network Docker Network 是 Docker 引擎提供的一种功能&#xff0c;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&#xff0c;以便容器之间可以相互通信&#xff0c;并与外部网络进行连接。 Docker Network 提供了以…...

编程日记 2024/5/29 3:37:05

QT学习（20）：QStyle类

Qt包含一组QStyle子类&#xff0c;这些子类&#xff08;QWindowsStyle&#xff0c;QMacStyle等&#xff09;模拟Qt支持的不同平台的样式&#xff0c;默认情况下&#xff0c;这些样式内置在Qt GUI模块中&#xff0c;样式也可以作为插件提供。 Qt的内置widgets使用QStyle来执行几…...

编程日记 2024/5/29 3:36:04

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&#xff1a;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&#xff1a; 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…...

编程日记 2024/5/29 3:35:03

【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&#xff1a;部分客户需求将自己网站打包成app&#xff0c;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&#xff1a;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…...

编程日记 2024/5/29 3:34:02

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&#xff0c;用于循环输出数组或者对象的属性&#xff0c;用法如下&#xff1a; $list User::all(); View::assign(list,$list); 模板文件中可以这样输出 {foreach $list as $key>$vo } {$vo.id}:{$vo.name} {/foreac…...

编程日记 2024/5/29 3:33:01

根据标签名递归读取xml字符串中element

工具类&#xff1a; /*** 根据标签名递归读取xml字符串中element* 例&#xff1a;* String xml * "<req>\n" * "<tag1></tag1>\n" * "<tag2>\n" * " <tag4></tag4>\n" * "</tag2>\n&…...

编程日记 2024/5/29 3:32:00

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&#xff0c;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&#xff0c;目前已有包涵人文、科技等多领域数据库300个&#xff0c;其中80多个是生物医学数据库…...

编程日记 2024/5/29 3:30:59

在已创建的git工程中添加.gitignore

有些代码创建git时&#xff0c;为了方便将所有文件都加入了git管理&#xff0c;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&#xff0c;否则每次提交或编译后&#xff0c;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…...

编程日记 2024/5/29 3:29:58

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&#xff0c;具体表现在以下几个方面&#xff1a; 1. 增强教学的真实感和互动性&#xff1a;MR混合现实技术能够创建出高度逼真的模拟临床环境&#xff0c;使学生能够身临其境地体验临床实践。这种技术…...

编程日记 2024/5/29 3:28:57

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&#xff0c;也和一位老板合作做&#xff0c;在一家小微公司里做过技术负责人&#xff0c;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&#xff0c;开办并维持着一家公司&#xff0c;其实需要操…...

编程日记 2024/5/29 3:27:56

【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&#xff0c;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&#xff0c;以帮助读者更好地理解和应用这些技术。 1. 使用 Array.prototype.fl…...

编程日记 2024/5/29 3:26:55

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&#xff08;无缺失&#xff09; 1、时间&#xff1a;2005-2022年 2、来源&#xff1a;国家统计局、统计年鉴 3、指标&#xff1a;全体居民人均可支配收入 4、范围&#xff1a;31省 5、缺失情况&#xff1a;无缺失 6、指标解释…...

编程日记 2024/5/29 3:25:54

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&#xff0c;面试官都喜欢问一个面试题&#xff0c;就是JVM调优的面试题&#xff0c;相信超过99%的小伙伴都没有过JVM调优的经历。说实话&#xff0c;我以前也没有相关的调优经验&#xff0c;也非常喜欢百度&#xff0c;这个问题到底想问什么&#xff0c;应该…...

编程日记 2024/5/29 3:24:53

朗之万动力学（Langevin dynamics）

朗之万动力学&#xff08;Langevin dynamics&#xff09; 是一种模拟经典粒子运动的方法&#xff0c;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&#xff08;Paul Langevin&#xff09;于1908年提出的&#xff0c;用于描述布朗运动&#xff0c;即微小粒…...

编程日记 2024/5/29 3:23:52

Linux应用开发之网络套接字编程(实例篇)

服务端与客户端单连接 服务端代码 #include <sys/socket.h> #include <sys/types.h> #include <netinet/in.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <arpa/inet.h> #include <pthread.h> …...

编程新知 2025/12/18 16:41:48

eNSP-Cloud(实现本地电脑与eNSP内设备之间通信)

说明&#xff1a; 想象一下&#xff0c;你正在用eNSP搭建一个虚拟的网络世界&#xff0c;里面有虚拟的路由器、交换机、电脑&#xff08;PC&#xff09;等等。这些设备都在你的电脑里面“运行”&#xff0c;它们之间可以互相通信&#xff0c;就像一个封闭的小王国。 但是&#…...

编程新知 2025/12/18 5:06:31

黑马Mybatis

Mybatis 表现层&#xff1a;页面展示 业务层&#xff1a;逻辑处理 持久层&#xff1a;持久数据化保存 在这里插入图片描述 Mybatis快速入门 ![在这里插入图片描述](https://i-blog.csdnimg.cn/direct/6501c2109c4442118ceb6014725e48e4.png //logback.xml <?xml ver…...

编程新知 2025/12/14 13:08:55

【入坑系列】TiDB 强制索引在不同库下不生效问题

文章目录 背景SQL 优化情况线上SQL运行情况分析怀疑1：执行计划绑定问题？尝试：SHOW WARNINGS 查看警告探索 TiDB 的 USE_INDEX 写法Hint 不生效问题排查解决参考背景 项目中使用 TiDB 数据库，并对 SQL 进行优化了，添加了强制索引。 UAT 环境已经生效，但 PROD 环境强制索…...

编程新知 2025/12/15 13:14:25

Golang dig框架与GraphQL的完美结合

将 Go 的 Dig 依赖注入框架与 GraphQL 结合使用&#xff0c;可以显著提升应用程序的可维护性、可测试性以及灵活性。 Dig 是一个强大的依赖注入容器&#xff0c;能够帮助开发者更好地管理复杂的依赖关系&#xff0c;而 GraphQL 则是一种用于 API 的查询语言&#xff0c;能够提…...

编程新知 2025/9/30 16:13:37

MMaDA: Multimodal Large Diffusion Language Models

CODE &#xff1a; https://github.com/Gen-Verse/MMaDA Abstract 我们介绍了一种新型的多模态扩散基础模型MMaDA&#xff0c;它被设计用于在文本推理、多模态理解和文本到图像生成等不同领域实现卓越的性能。该方法的特点是三个关键创新:(i) MMaDA采用统一的扩散架构&#xf…...

编程新知 2025/12/14 15:17:28

转转集团旗下首家二手多品类循环仓店“超级转转”开业

6月9日&#xff0c;国内领先的循环经济企业转转集团旗下首家二手多品类循环仓店“超级转转”正式开业。 转转集团创始人兼CEO黄炜、转转循环时尚发起人朱珠、转转集团COO兼红布林CEO胡伟琨、王府井集团副总裁祝捷等出席了开业剪彩仪式。 据「TMT星球」了解&#xff0c;“超级…...

编程新知 2025/12/16 14:36:58

华为OD机试-食堂供餐-二分法

import java.util.Arrays; import java.util.Scanner;public class DemoTest3 {public static void main(String[] args) {Scanner in new Scanner(System.in);// 注意 hasNext 和 hasNextLine 的区别while (in.hasNextLine()) { // 注意 while 处理多个 caseint a in.nextIn…...

编程新知 2025/12/12 18:29:04

spring：实例工厂方法获取bean

spring处理使用静态工厂方法获取bean实例&#xff0c;也可以通过实例工厂方法获取bean实例。 实例工厂方法步骤如下&#xff1a; 定义实例工厂类&#xff08;Java代码&#xff09;&#xff0c;定义实例工厂&#xff08;xml&#xff09;&#xff0c;定义调用实例工厂&#xff…...

编程新知 2025/11/25 22:46:30

python如何将word的doc另存为docx

将 DOCX 文件另存为 DOCX 格式&#xff08;Python 实现&#xff09; 在 Python 中&#xff0c;你可以使用 python-docx 库来操作 Word 文档。不过需要注意的是&#xff0c;.doc 是旧的 Word 格式&#xff0c;而 .docx 是新的基于 XML 的格式。python-docx 只能处理 .docx 格式…...

编程新知 2025/12/13 22:42:30