bugfix：目录订阅收到更新事件时，sql字段update_time为空导致的报错

lishuyuan

2023-11-02 8bd2f47c9a92ffcf5ae43fae965eaefd4748e263

 src/main/java/com/genersoft/iot/vmp/media/zlm/dto/HookSubscribeForServerStarted.java

old mode 100644
new mode 100755
@@ -1,7 +1,7 @@
package com.genersoft.iot.vmp.media.zlm.dto;

import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.annotation.JSONField;
import com.alibaba.fastjson2.JSONObject;
import com.alibaba.fastjson2.annotation.JSONField;

import java.time.Instant;