节点管理--某个zlm节点删除之后，数据库中仍有数据，导致再次添加该zlm节点

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

@@ -76,6 +76,8 @@ public interface IMediaServerService {
 
     void delete(String id);
 
+    void deleteDb(String id);
+
     MediaServerItem getDefaultMediaServer();
 
     void updateMediaServerKeepalive(String mediaServerId, JSONObject data);

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

@@ -608,6 +608,11 @@ public class MediaServerServiceImpl implements IMediaServerService {
         String key = VideoManagerConstants.MEDIA_SERVER_PREFIX + userSetup.getServerId() + "_" + id;
         redisUtil.del(key);
     }
+    @Override
+    public void deleteDb(String id){
+        //同步删除数据库中的数据
+        mediaServerMapper.delOne(id);
+    }
 
     @Override
     public void updateMediaServerKeepalive(String mediaServerId, JSONObject data) {

src/main/java/com/genersoft/iot/vmp/vmanager/server/ServerController.java

@@ -158,6 +158,7 @@ public class ServerController {
     public WVPResult<String> deleteMediaServer(@RequestParam  String id){
         if (mediaServerService.getOne(id) != null) {
             mediaServerService.delete(id);
+            mediaServerService.deleteDb(id);
         }else {
             WVPResult<String> result = new WVPResult<>();
             result.setCode(-1);