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获取设备最大的最近连接时间。改为在数据库里排序好后返回给系统，缓存时间修改为2分钟

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--DeviceDao.java 修改方法返回值
--DeviceDao.xml 修改sql，在数据库里排序返回
--DeviceServiceImpl.java 修改缓存时间为2分钟
This commit is contained in:
剑雨
2025-05-07 11:04:14 +08:00
parent b4944f23ef
commit 770a198772
3 changed files with 8 additions and 7 deletions
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main/manager-api/src/main/java/xiaozhi/modules/device/dao/DeviceDao.java
+1 -1
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@@ -16,6 +16,6 @@ public interface DeviceDao extends BaseMapper<DeviceEntity> {
* @param agentId 智能体id * @param agentId 智能体id
* @return * @return
*/ */
List<Date> getAllLastConnectedAtByAgentId(String agentId); Date getAllLastConnectedAtByAgentId(String agentId);
} }
main/manager-api/src/main/java/xiaozhi/modules/device/service/impl/DeviceServiceImpl.java
+2 -5
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@@ -260,12 +260,9 @@ public class DeviceServiceImpl extends BaseServiceImpl<DeviceDao, DeviceEntity>
if (cachedDate != null) { if (cachedDate != null) {
return cachedDate; return cachedDate;
} }
List<Date> list = deviceDao.getAllLastConnectedAtByAgentId(agentId); Date maxDate = deviceDao.getAllLastConnectedAtByAgentId(agentId);
Date maxDate = Collections.max(list, Comparator.comparing(Date::getTime));
// 将结果存入Redis, 存储设备最近最后连接时间，和设备数量
redisUtils.set(RedisKeys.getAgentDeviceCountById(agentId), list.size(), 60);
if (maxDate != null) { if (maxDate != null) {
redisUtils.set(RedisKeys.getAgentDeviceLastConnectedAtById(agentId), maxDate, 60); redisUtils.set(RedisKeys.getAgentDeviceLastConnectedAtById(agentId), maxDate, 60 * 2);
} }
return maxDate; return maxDate;
} }
main/manager-api/src/main/resources/mapper/device/DeviceDao.xml
+5 -1
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@@ -3,6 +3,10 @@
<mapper namespace="xiaozhi.modules.device.dao.DeviceDao"> <mapper namespace="xiaozhi.modules.device.dao.DeviceDao">
<!-- 获取此智能体全部设备的最后连接时间 --> <!-- 获取此智能体全部设备的最后连接时间 -->
<select id="getAllLastConnectedAtByAgentId" resultType="java.util.Date"> <select id="getAllLastConnectedAtByAgentId" resultType="java.util.Date">
SELECT last_connected_at FROM ai_device WHERE agent_id = #{agentId} SELECT last_connected_at FROM ai_device
WHERE
agent_id = #{agentId}
order by
last_connected_at desc limit 0,1
</select> </select>
</mapper> </mapper>