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/storager/IRedisCatchStorage.java

@@ -258,4 +258,7 @@ public interface IRedisCatchStorage {
 
     List<SendRtpItem> queryAllSendRTPServer();
 
+    List<Device> getAllDevices();
+
+    void removeAllDevice();
 }

src/main/java/com/genersoft/iot/vmp/storager/dao/DeviceMapper.java

@@ -280,4 +280,6 @@ public interface DeviceMapper {
     @Select("select count(1) as total, sum(online) as online from device")
     ResourceBaceInfo getOverview();
 
+    @Select("select * from device")
+    List<Device> getAll();
 }

src/main/java/com/genersoft/iot/vmp/storager/impl/RedisCatchStorageImpl.java

@@ -664,6 +664,31 @@ public class RedisCatchStorageImpl implements IRedisCatchStorage {
         RedisUtil.del(key);
     }
 
+    @Override
+    public void removeAllDevice() {
+        String scanKey = VideoManagerConstants.DEVICE_PREFIX + userSetting.getServerId() + "_*";
+        List<Object> keys = RedisUtil.scan(scanKey);
+        for (Object key : keys) {
+            RedisUtil.del((String) key);
+        }
+    }
+
+    @Override
+    public List<Device> getAllDevices() {
+        String scanKey = VideoManagerConstants.DEVICE_PREFIX + userSetting.getServerId() + "_*";
+        List<Device> result = new ArrayList<>();
+        List<Object> keys = RedisUtil.scan(scanKey);
+        for (Object o : keys) {
+            String key = (String) o;
+            Device device = JsonUtil.redisJsonToObject(key, Device.class);
+            if (Objects.nonNull(device)) { // 只取没有存过得
+                result.add(JsonUtil.redisJsonToObject(key, Device.class));
+            }
+        }
+
+        return result;
+    }
+
     @Override
     public Device getDevice(String deviceId) {
         String key = VideoManagerConstants.DEVICE_PREFIX + userSetting.getServerId() + "_" + deviceId;