From 42e8cb4d1c9655e161df8088473d0b943d879e37 Mon Sep 17 00:00:00 2001
From: xiaoyong931011 <15274802129@163.com>
Date: Tue, 14 Dec 2021 11:54:58 +0800
Subject: [PATCH] 20211214
---
src/main/java/cc/mrbird/febs/common/utils/ShareCodeUtil.java | 110 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 110 insertions(+), 0 deletions(-)
diff --git a/src/main/java/cc/mrbird/febs/common/utils/ShareCodeUtil.java b/src/main/java/cc/mrbird/febs/common/utils/ShareCodeUtil.java
new file mode 100644
index 0000000..5381938
--- /dev/null
+++ b/src/main/java/cc/mrbird/febs/common/utils/ShareCodeUtil.java
@@ -0,0 +1,110 @@
+package cc.mrbird.febs.common.utils;
+
+import java.util.Random;
+
+public class ShareCodeUtil {
+
+ /**
+ * 自定义进制(0,1没有加入,容易与o,l混淆)
+ */
+// private static final char[] r=new char[]{'q', 'w', 'e', '8', 'a', 's', '2', 'd', 'z', 'x', '9', 'c', '7', 'p', '5', 'i', 'k', '3', 'm', 'j', 'u', 'f', 'r', '4', 'v', 'y', 'l', 't', 'n', '6', 'b', 'g', 'h'};
+ private static final char[] r = new char[]{'1', '2', '3', '4', '5', '6', '7', '8', '9'};
+
+ /**
+ * (不能与自定义进制有重复)
+ */
+ private static final char b = '0';
+
+ /**
+ * 进制长度
+ */
+ private static final int binLen = r.length;
+
+ /**
+ * 序列最小长度
+ */
+ private static final int s = 8;
+
+ /**
+ * 根据ID生成六位随机码
+ *
+ * @param id ID
+ * @return 随机码
+ */
+ public static String toSerialCode(long id) {
+ char[] buf = new char[32];
+ int charPos = 32;
+
+ while ((id / binLen) > 0) {
+ int ind = (int) (id % binLen);
+ buf[--charPos] = r[ind];
+ id /= binLen;
+ }
+ buf[--charPos] = r[(int) (id % binLen)];
+ String str = new String(buf, charPos, (32 - charPos));
+ // 不够长度的自动随机补全
+ if (str.length() < s) {
+ StringBuilder sb = new StringBuilder();
+ sb.append(b);
+ Random rnd = new Random();
+ for (int i = 1; i < s - str.length(); i++) {
+ sb.append(r[rnd.nextInt(binLen)]);
+ }
+ str += sb.toString();
+ }
+ return str;
+ }
+
+ /**
+ * 根据ID生成六位随机码
+ *
+ * @param id ID
+ * @return 随机码
+ */
+ public static String toSerialNumberCode(long id) {
+ char[] buf = new char[32];
+ int charPos = 32;
+
+ while ((id / binLen) > 0) {
+ int ind = (int) (id % binLen);
+ buf[--charPos] = r[ind];
+ id /= binLen;
+ }
+ buf[--charPos] = r[(int) (id % binLen)];
+ String str = new String(buf, charPos, (32 - charPos));
+ // 不够长度的自动随机补全
+ if (str.length() < s) {
+ StringBuilder sb = new StringBuilder();
+ sb.append(b);
+ Random rnd = new Random();
+ for (int i = 1; i < s - str.length(); i++) {
+ sb.append(r[rnd.nextInt(binLen)]);
+ }
+ str += sb.toString();
+ }
+ return str;
+ }
+
+ public static long codeToId(String code) {
+ char chs[] = code.toCharArray();
+ long res = 0L;
+ for (int i = 0; i < chs.length; i++) {
+ int ind = 0;
+ for (int j = 0; j < binLen; j++) {
+ if (chs[i] == r[j]) {
+ ind = j;
+ break;
+ }
+ }
+ if (chs[i] == b) {
+ break;
+ }
+ if (i > 0) {
+ res = res * binLen + ind;
+ } else {
+ res = ind;
+ }
+ }
+ return res;
+ }
+}
\ No newline at end of file
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