1.添加mybatisPlus依赖

2.排队取号接口

src/main/java/com/chaozhanggui/system/cashierservice/service/TbCallQueueService.java

@@ -0,0 +1,13 @@
+package com.chaozhanggui.system.cashierservice.service;
+
+import com.chaozhanggui.system.cashierservice.entity.TbCallQueue;
+import com.baomidou.mybatisplus.extension.service.IService;
+
+/**
+* @author Administrator
+* @description 针对表【tb_call_queue】的数据库操作Service
+* @createDate 2024-09-13 13:44:26
+*/
+public interface TbCallQueueService extends IService<TbCallQueue> {
+
+}

src/main/java/com/chaozhanggui/system/cashierservice/service/TbCallService.java

@@ -0,0 +1,9 @@
+package com.chaozhanggui.system.cashierservice.service;
+
+import com.chaozhanggui.system.cashierservice.entity.dto.TakeNumberDTO;
+
+public interface TbCallService {
+    Object takeNumber(TakeNumberDTO takeNumberDTO);
+
+    Object getList(Integer shopId, String openId);
+}

src/main/java/com/chaozhanggui/system/cashierservice/service/TbCallTableService.java

@@ -0,0 +1,16 @@
+package com.chaozhanggui.system.cashierservice.service;
+
+import com.chaozhanggui.system.cashierservice.entity.TbCallTable;
+import com.baomidou.mybatisplus.extension.service.IService;
+import org.springframework.context.annotation.Primary;
+import org.springframework.stereotype.Service;
+
+/**
+* @author Administrator
+* @description 针对表【tb_call_table】的数据库操作Service
+* @createDate 2024-09-13 13:44:34
+*/
+@Service
+public interface TbCallTableService extends IService<TbCallTable> {
+
+}

src/main/java/com/chaozhanggui/system/cashierservice/service/impl/TbCallQueueServiceImpl.java

@@ -0,0 +1,24 @@
+package com.chaozhanggui.system.cashierservice.service.impl;
+
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.chaozhanggui.system.cashierservice.entity.TbCallQueue;
+import com.chaozhanggui.system.cashierservice.service.TbCallQueueService;
+import com.chaozhanggui.system.cashierservice.mapper.TbCallQueueMapper;
+import org.springframework.context.annotation.Primary;
+import org.springframework.stereotype.Service;
+
+/**
+* @author Administrator
+* @description 针对表【tb_call_queue】的数据库操作Service实现
+* @createDate 2024-09-13 13:44:26
+*/
+@Service
+@Primary
+public class TbCallQueueServiceImpl extends ServiceImpl<TbCallQueueMapper, TbCallQueue>
+    implements TbCallQueueService{
+
+}
+
+
+
+

src/main/java/com/chaozhanggui/system/cashierservice/service/impl/TbCallServiceImpl.java

@@ -0,0 +1,98 @@
+package com.chaozhanggui.system.cashierservice.service.impl;
+
+import cn.hutool.core.bean.BeanUtil;
+import cn.hutool.core.date.DateUtil;
+import cn.hutool.core.util.StrUtil;
+import com.chaozhanggui.system.cashierservice.dao.TbShopInfoMapper;
+import com.chaozhanggui.system.cashierservice.entity.TbCallQueue;
+import com.chaozhanggui.system.cashierservice.entity.TbCallTable;
+import com.chaozhanggui.system.cashierservice.entity.TbShopInfo;
+import com.chaozhanggui.system.cashierservice.entity.dto.TakeNumberDTO;
+import com.chaozhanggui.system.cashierservice.exception.MsgException;
+import com.chaozhanggui.system.cashierservice.mapper.TbCallQueueMapper;
+import com.chaozhanggui.system.cashierservice.redis.RedisCst;
+import com.chaozhanggui.system.cashierservice.service.TbCallQueueService;
+import com.chaozhanggui.system.cashierservice.service.TbCallService;
+import com.chaozhanggui.system.cashierservice.service.TbCallTableService;
+import com.chaozhanggui.system.cashierservice.util.Utils;
+import lombok.AllArgsConstructor;
+import org.springframework.context.annotation.Primary;
+import org.springframework.data.redis.core.StringRedisTemplate;
+import org.springframework.stereotype.Service;
+
+import java.util.concurrent.atomic.AtomicReference;
+
+@Service
+@AllArgsConstructor
+@Primary
+public class TbCallServiceImpl implements TbCallService {
+    private final TbCallQueueService callQueueService;
+    private final TbCallTableService callTableService;
+    private final TbShopInfoMapper shopInfoMapper;
+    private final TbCallQueueMapper callQueueMapper;
+    private final StringRedisTemplate redisTemplate;
+
+    private String getCallNumber(Integer shopId, TbCallTable callTable) {
+        return Utils.runFunAndCheckKey(() -> {
+            String callNumKey = RedisCst.getTableCallNumKey(shopId, callTable.getId());
+            String value = redisTemplate.opsForValue().get(callNumKey);
+            AtomicReference<String> newVal = new AtomicReference<>("");
+            // 初始化
+            if (StrUtil.isBlank(value)) {
+                Boolean setFlag = Utils.runFunAndRetry(() -> redisTemplate.opsForValue().setIfAbsent(callNumKey, callTable.getStart().toString()), flag -> !flag,
+                        r -> newVal.set(redisTemplate.opsForValue().get(callNumKey)));
+
+                if (setFlag) {
+                    return callTable.getPrefix() + callTable.getStart();
+                }else if (StrUtil.isNotBlank(newVal.get())){
+                    value = String.valueOf((Integer.parseInt(newVal.get()) + 1));
+                    redisTemplate.opsForValue().set(callNumKey, value);
+                    return callTable.getPrefix() + value;
+                }else {
+                    throw new MsgException("生成排队号码失败");
+                }
+
+            }else {
+                value = String.valueOf((Integer.parseInt(value) + 1));
+                redisTemplate.opsForValue().set(callNumKey, value);
+                return callTable.getPrefix() + value;
+            }
+        }, redisTemplate, RedisCst.getLockKey("UPDATE_TABLE", shopId, callTable.getId()));
+    }
+
+    @Override
+    public Object takeNumber(TakeNumberDTO takeNumberDTO) {
+        TbShopInfo shopInfo = shopInfoMapper.selectByPrimaryKey(takeNumberDTO.getShopId());
+        if (shopInfo == null) {
+            throw new MsgException("店铺信息不存在");
+        }
+
+        TbCallTable callTable = callTableService.lambdaQuery()
+                .eq(TbCallTable::getShopId, takeNumberDTO.getShopId())
+                .eq(TbCallTable::getId, takeNumberDTO.getCallTableId()).one();
+        if (callTable == null) {
+            throw new MsgException("桌型不存在");
+        }
+
+        TbCallQueue callQueue = callQueueService.lambdaQuery()
+                .eq(TbCallQueue::getPhone, takeNumberDTO.getPhone())
+                .eq(TbCallQueue::getShopId, takeNumberDTO.getShopId())
+                .eq(TbCallQueue::getCallTableId, takeNumberDTO.getCallTableId()).one();
+        if (callQueue != null) {
+            throw new MsgException("您已取号，请勿重复取号");
+        }
+
+        callQueue = BeanUtil.copyProperties(takeNumberDTO, TbCallQueue.class);
+        callQueue.setSubState(1);
+        callQueue.setCreateTime(DateUtil.date());
+        callQueue.setShopId(shopInfo.getId());
+        callQueue.setShopName(shopInfo.getShopName());
+        callQueue.setCallNum(getCallNumber(takeNumberDTO.getShopId(), callTable));
+        return callQueueService.save(callQueue);
+    }
+
+    @Override
+    public Object getList(Integer shopId, String openId) {
+        return callQueueMapper.selectInfoByOpenId(shopId, openId);
+    }
+}

src/main/java/com/chaozhanggui/system/cashierservice/service/impl/TbCallTableServiceImpl.java

@@ -0,0 +1,24 @@
+package com.chaozhanggui.system.cashierservice.service.impl;
+
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.chaozhanggui.system.cashierservice.entity.TbCallTable;
+import com.chaozhanggui.system.cashierservice.service.TbCallTableService;
+import com.chaozhanggui.system.cashierservice.mapper.TbCallTableMapper;
+import org.springframework.context.annotation.Primary;
+import org.springframework.stereotype.Service;
+
+/**
+* @author Administrator
+* @description 针对表【tb_call_table】的数据库操作Service实现
+* @createDate 2024-09-13 13:44:34
+*/
+@Service
+@Primary
+public class TbCallTableServiceImpl extends ServiceImpl<TbCallTableMapper, TbCallTable>
+    implements TbCallTableService{
+
+}
+
+
+
+