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wx-cashier-service
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Merge remote-tracking branch 'origin/lyf' into lyf 

# Conflicts:
#	src/main/java/com/chaozhanggui/system/cashierservice/entity/TbShopInfo.java
#	src/main/java/com/chaozhanggui/system/cashierservice/util/RandomUtil.java
This commit is contained in:
wangw 2024-04-15 15:24:23 +08:00
parent ca1cdd545c c84b9cc152
commit 60fc45a65e
2 changed files with 24 additions and 20 deletions
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2
src/main/java/com/chaozhanggui/system/cashierservice/entity/TbShopInfo.java
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@ -105,4 +105,6 @@ public class TbShopInfo implements Serializable {
*/
private String tag;
private static final long serialVersionUID = 1L;
}

42
src/main/java/com/chaozhanggui/system/cashierservice/util/RandomUtil.java
View File

@ -1,4 +1,5 @@
package com.chaozhanggui.system.cashierservice.util;
import com.chaozhanggui.system.cashierservice.entity.TbOrderInfo;
import java.math.BigDecimal;
@ -6,10 +7,31 @@ import java.math.RoundingMode;
import java.util.List;
import java.util.Map;
import java.util.Random;
/**
* @author lyf
*/
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
}
public static BigDecimal randomDecimalGenerator(){
double number = generateRandomInt(2, 40);
@ -37,24 +59,4 @@ public class RandomUtil {
return random.nextInt(46) + 1;
}
//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
}
}