优惠券+异常全局处理

src/main/java/com/chaozhanggui/system/cashierservice/util/NicknameGenerator.java

@@ -0,0 +1,40 @@
+package com.chaozhanggui.system.cashierservice.util;
+
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.JSONArray;
+import com.chaozhanggui.system.cashierservice.entity.TbOrderInfo;
+
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.Random;
+
+public class NicknameGenerator {
+    private static final String[] FIRST_NAMES = {
+            "晓", "小", "云", "飞", "宝", "琳", "静", "翔", "晨", "昊", "若", "萌", "悦", "舒", "婷", "紫", "凡", "佳", "雨", "阳"
+    };
+
+    private static final String[] LAST_NAMES = {
+            "天", "星", "月", "琪", "雪", "梦", "婷", "晨", "宇", "瑞", "颖", "欣", "莹", "妍", "娜", "辰", "楠", "妮", "欢", "瑶"
+    };
+
+    private static final String[] WORDS = {
+            "烟火", "夜景", "小巷", "阳光", "雨滴", "星空", "花海", "梦境", "魔法", "飞翔", "童话", "温柔", "快乐", "微笑", "甜蜜", "浪漫", "幸福"
+    };
+
+    private static final String[] EMOJIS = {
+            "(＾－＾)", "(￣▽￣)～■干杯□～(￣▽￣)", "(*^▽^*)", "≧◡≦", "ヾ(≧▽≦*)o",
+            "（*＾3＾）/～☆", "(*^▽^*)", "╰(￣▽￣)╮", "(o^^)o", "(づ￣ 3￣)づ"
+    };
+
+    public static String generateRandomWeChatNickname() {
+        Random random = new Random();
+        String firstName = FIRST_NAMES[random.nextInt(FIRST_NAMES.length)];
+        String lastName = LAST_NAMES[random.nextInt(LAST_NAMES.length)];
+        String word = WORDS[random.nextInt(WORDS.length)];
+        String emoji = EMOJIS[random.nextInt(EMOJIS.length)];
+        return firstName + lastName + word + emoji;
+    }
+
+}

src/main/java/com/chaozhanggui/system/cashierservice/util/RandomUtil.java

@@ -0,0 +1,31 @@
+package com.chaozhanggui.system.cashierservice.util;
+
+import com.chaozhanggui.system.cashierservice.entity.TbOrderInfo;
+
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+import java.util.List;
+import java.util.Map;
+import java.util.Random;
+
+public class RandomUtil {
+    //获取BigDeciaml随机数
+    public static BigDecimal getRandomBigDecimal(BigDecimal minAmount, BigDecimal maxAmount) {
+        BigDecimal randomBigDecimal = maxAmount.subtract(minAmount).multiply(new BigDecimal(Math.random())).add(minAmount);
+        return randomBigDecimal.setScale(2, RoundingMode.HALF_UP); // 设置保留两位小数并四舍五入
+    }
+    //获取中奖随机数
+    public static TbOrderInfo selectWinner(List<TbOrderInfo> list, Map<Integer,Integer> map) {
+        if (list == null || list.isEmpty()) {
+            return null; // 如果用户列表为空，则返回null
+        }
+
+        Random random = new Random();
+        int randomIndex = random.nextInt(list.size()); // 生成一个随机的索引值
+        TbOrderInfo orderInfo = list.get(randomIndex);
+        if (map.containsKey(orderInfo.getId())){
+            return selectWinner(list,map);
+        }
+        return list.get(randomIndex); // 返回对应索引的用户
+    }
+}

src/main/java/com/chaozhanggui/system/cashierservice/util/WiningUtil.java

@@ -1,50 +0,0 @@
-package com.chaozhanggui.system.cashierservice.util;
-
-import com.alibaba.fastjson.JSON;
-import com.alibaba.fastjson.JSONArray;
-
-import java.text.SimpleDateFormat;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
-import java.util.Random;
-
-public class WiningUtil {
-    private List<String> participants;
-    private Random random;
-
-    public WiningUtil(List<String> participants) {
-        this.participants = participants;
-        this.random = new Random();
-    }
-
-    public String drawWinner() {
-        if (participants.isEmpty()) {
-            return "No participants to draw from";
-        }
-
-        int index = random.nextInt(participants.size());
-        return participants.get(index);
-    }
-
-    public static void main(String[] args) {
-        // 参与抽奖的人员名单
-        List<String> participants = new ArrayList<>();
-        participants.add("Alice");
-        participants.add("Bob");
-        participants.add("Charlie");
-        participants.add("David");
-        participants.add("Eve");
-
-        // 创建抽奖对象
-        WiningUtil winingUtil = new WiningUtil(participants);
-
-        // 进行抽奖
-        String winner = winingUtil.drawWinner();
-        System.out.println("Winner: " + winner);
-    }
-    public static boolean winingresult(){
-
-        return false;
-    }
-}