优化

src/main/java/xyz/wbsite/dbtool/javafx/ctrl/MainController.java

@@ -14,6 +14,7 @@ import javafx.stage.Stage;
 import xyz.wbsite.dbtool.javafx.JavaFxApplication;
 import xyz.wbsite.dbtool.javafx.manger.ManagerFactory;
 import xyz.wbsite.dbtool.javafx.manger.ProjectManager;
+import xyz.wbsite.dbtool.javafx.po.Project;
 import xyz.wbsite.dbtool.javafx.tool.Dialog;
 
 import java.io.File;
@@ -154,7 +155,7 @@ public class MainController {
 
     @FXML
     public void modelCreate(ActionEvent actionEvent) {
-        main.initProjectTree(projectManager.invalidate());
+        main.initProjectTree(new Project());
         main.loadProject();
     }