From 790c2ba4a0b46edf191e3bac84931f796bd42b8f Mon Sep 17 00:00:00 2001 From: zhangf <1603559716@qq.com> Date: 星期三, 24 七月 2024 09:02:49 +0800 Subject: [PATCH] 三方对接接口优化 --- ruoyi-common/src/main/java/com/ruoyi/common/utils/RandomUtil.java | 40 ++++++++++++++++++++++++++++++++++++++++ 1 files changed, 40 insertions(+), 0 deletions(-) diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/RandomUtil.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/RandomUtil.java new file mode 100644 index 0000000..1ef77b8 --- /dev/null +++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/RandomUtil.java @@ -0,0 +1,40 @@ +package com.ruoyi.common.utils; + + +import java.util.Random; + +public class RandomUtil { + /** + * 字符串池 + */ + private static String[] STR_ARR = new String[] { "a", "b", "c", "d", "e", + "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", + "s", "t", "u", "v", "w", "x", "y", "z", "A", "B", "C", "D", "E", + "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", + "S", "T", "U", "V", "W", "X", "Y", "Z", "1", "2", "3", "4", "5", + "6", "7", "8", "9", "0" }; + + /** + * + * 根据指定的长度生成的含有大小写字母及数字的字符串 + * + * @param length + * 指定的长度 + * @return 按照指定的长度生成的含有大小写字母及数字的字符串 + */ + public static String generateRandomString(int length) { + StringBuilder sb = new StringBuilder(); + Random rand = new Random(); + for (int i = 0; i < length; i++) { + sb.append(STR_ARR[rand.nextInt(STR_ARR.length)]); + } + return sb.toString(); + } + + public static void main(String[] args) { + String s = generateRandomString(26); + System.out.println(s); + + } + +} -- Gitblit v1.9.2