启动时清理无效的设备缓存数据，避免设备无法注册

src/main/java/com/genersoft/iot/vmp/service/IDeviceService.java

@@ -163,4 +163,8 @@ public interface IDeviceService {
      */
     ResourceBaceInfo getOverview();
 
+    /**
+     * 获取所有设备
+     */
+    List<Device> getAll();
 }

src/main/java/com/genersoft/iot/vmp/service/impl/DeviceServiceImpl.java

@@ -631,4 +631,9 @@ public class DeviceServiceImpl implements IDeviceService {
     public ResourceBaceInfo getOverview() {
         return deviceMapper.getOverview();
     }
+
+    @Override
+    public List<Device> getAll() {
+        return deviceMapper.getAll();
+    }
 }