楼宇列表里的告警数量改成当天发生的实际告警次数

dongjian-dashboard-back-dao/src/main/resources/mappers/ex/OverviewInfoMapperExt.xml

@@ -27,7 +27,7 @@
 		WHERE
             bbuilding.company_id = #{companyId} AND bbuilding.flag = 0 AND basic_floor.flag = 0 AND basic_space.flag = 0
         AND basic_monitoring_asset.flag = 0 AND dinfo.flag = 0
-        AND ah.confirm_status = 0 AND ah.handle_status = 1
+        AND ah.receive_ts >= #{midnightTimestamp}
 	</select>
 
     <select id="getBuildingInfo" resultType="com.dongjian.dashboard.back.vo.data.OverviewVO">

dongjian-dashboard-back-service/src/main/java/com/dongjian/dashboard/back/service/impl/OverviewServiceImpl.java

@@ -11,6 +11,7 @@ import com.dongjian.dashboard.back.dto.monitoringpointcategory.MonitoringPointCa
 import com.dongjian.dashboard.back.service.OverviewService;
 import com.dongjian.dashboard.back.service.common.CommonOpt;
 import com.dongjian.dashboard.back.service.common.MenuTree;
+import com.dongjian.dashboard.back.util.DateUtil;
 import com.dongjian.dashboard.back.vo.TreeMenusDTO;
 import com.dongjian.dashboard.back.vo.dashboardnotification.DashboardNotificationPageVO;
 import com.dongjian.dashboard.back.vo.data.OverviewCategoryVO;
@@ -76,6 +77,7 @@ public class OverviewServiceImpl implements OverviewService {
 			Map<String, Object> paramMap = new HashMap<>();
 			paramMap.put("companyId", companyId);
 			paramMap.put("categoryIdList", Constants.CATEGORY_MAP.get(Constants.CATEGORY_ALARM));
+			paramMap.put("midnightTimestamp", DateUtil.getTodayZeroMillisByOffset(utcOffset));
 			List<OverviewInfo> alarmInfoList = overviewInfoMapperExt.getOverviewInfo(paramMap);
 			List<OverviewVO> overviewVOList = convert(alarmInfoList, utcOffset);
 

dongjian-dashboard-back-util/src/main/java/com/dongjian/dashboard/back/util/DateUtil.java

@@ -2,10 +2,7 @@ package com.dongjian.dashboard.back.util;
 
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
-import java.time.DayOfWeek;
-import java.time.Instant;
-import java.time.LocalDate;
-import java.time.ZoneId;
+import java.time.*;
 import java.time.format.DateTimeFormatter;
 import java.time.temporal.IsoFields;
 import java.util.*;
@@ -95,4 +92,29 @@ public class DateUtil {
                 .minusDays(1);
         return japanYesterday.format(FORMATTER);
     }
+
+    /**
+     * 根据前端传来的时区偏移（分钟），获取该时区当天 0 点的毫秒时间戳
+     * @param offsetMinutes 前端传递的偏移量，例如东八区为 -480
+     * @return 当天 0 点的毫秒级时间戳（UTC）
+     */
+    public static long getTodayZeroMillisByOffset(Integer offsetMinutes) {
+        // 若未传偏移，可使用默认时区（如系统默认或东八区）
+        if (offsetMinutes == null) {
+            // 默认日本时区（+9）
+            offsetMinutes = -540;
+        }
+
+        // 将前端 offset 转换为 ZoneOffset（例如 -480 -> +08:00）
+        int offsetSeconds = -offsetMinutes * 60;   // 注意负负得正
+        ZoneOffset zoneOffset = ZoneOffset.ofTotalSeconds(offsetSeconds);
+
+        // 当前时刻在该偏移下的当天0点
+        ZonedDateTime todayZero = ZonedDateTime.now(zoneOffset)
+                .toLocalDate()
+                .atStartOfDay(zoneOffset);
+
+        // 返回毫秒时间戳
+        return todayZero.toInstant().toEpochMilli();
+    }
 }