flask_app: json问题处理

Signed-off-by: binren <zhangbr@elab-plus.com>

flask_app.py

@@ -218,7 +218,7 @@ def report_test():
     try:
         reprt_push = ReportPush('bi_report')
         result = reprt_push.report_data_query(2)
-        return json.dumps(result, ensure_ascii=False)
+        return json.dumps(result, ensure_ascii=False, default=lambda obj: obj.__dict__)
     except Exception as e:
         return str(e)