feat: [1004504] 编辑运营需求优化（答案阅读密码、浮窗引导、二维码目录、版权保护、平台结算）

pcloud-service-book/src/main/java/com/pcloud/book/copyright/tools/CopyrightTools.java

 package com.pcloud.book.copyright.tools;
 
+import cn.hutool.core.util.RandomUtil;
 import com.google.zxing.BarcodeFormat;
 import com.google.zxing.EncodeHintType;
 import com.google.zxing.MultiFormatWriter;
@@ -39,6 +40,7 @@ import java.util.ArrayList;
 import java.util.Calendar;
 import java.util.Date;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -87,13 +89,11 @@ public class CopyrightTools {
      * @return
      */
     public static List<String> createShortUuidByCount(Integer count) {
-        Map<String, String> numbers = new HashMap<>();
-        Set<String> numSet = numbers.keySet();
-        while (numSet.size() < count) {
-            String uuid = generateShortUuid();
-            numbers.put(uuid, uuid);
+        Set<String> numbers = new HashSet<>(count);
+        while (numbers.size() < count) {
+            numbers.add(RandomUtil.randomString("QWERTYUOPASDFGHJKLZXCVBNM2345678", 11));
         }
-        return new ArrayList<>(numbers.keySet());
+        return new ArrayList<>(numbers);
     }