add scheduled task

+package com.tianting.infoloop.task;
+
+import cn.hutool.core.date.LocalDateTimeUtil;
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.toolkit.Wrappers;
+import com.infoloop.tianting.clientcustomerorderservice.OrderStatusEnum;
+import com.tianting.infoloop.mapper.OrderDbMapper;
+import com.tianting.infoloop.model.db.OrderDb;
+import com.tianting.infoloop.service.OrderDbService;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import lombok.RequiredArgsConstructor;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.scheduling.annotation.EnableScheduling;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+
+@Component
+@EnableScheduling
+@RequiredArgsConstructor(onConstructor_ = @Autowired)
+public class ScheduledTask {
+  private final OrderDbService orderDbService;
+  private final OrderDbMapper orderDbMapper;
+
+  // 每5秒执行一次的定时任务
+//  @Scheduled(fixedRate = 5000)
+//  public void task1() {
+//    System.out.println("定时任务1：每5秒执行一次，当前时间：" + System.currentTimeMillis());
+//  }
+
+  // 每天凌晨2点执行一次的定时任务
+  @Scheduled(cron = "0 0 1 * * *")
+  public void taskForUpdateOrderStatus() {
+    LocalDate today = LocalDate.now();
+    LocalDateTime todayZero = today.atStartOfDay();
+    LocalDate tomorrow = today.plusDays(1);
+    LocalDateTime tomorrowZero = tomorrow.atStartOfDay();
+
+    LambdaQueryWrapper<OrderDb> queryWrapper = Wrappers.lambdaQuery();
+    queryWrapper.eq(OrderDb::getStatus, OrderStatusEnum.TO_PREPARE.getNumber());
+    queryWrapper.ge(OrderDb::getMealTime, LocalDateTimeUtil.of(todayZero));
+    queryWrapper.le(OrderDb::getMealTime, LocalDateTimeUtil.of(tomorrowZero));
+
+    final var list = orderDbService.list(queryWrapper);
+    for( OrderDb orderDb: list) {
+      orderDb.setStatus(OrderStatusEnum.PREPARING_VALUE);
+      orderDbMapper.updateById(orderDb);
+    }
+  }
+}
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