diff --git a/XisongSpaceBooking_BackEnd/appsettings.json b/XisongSpaceBooking_BackEnd/appsettings.json
index 10f68b8..6d09d92 100644
--- a/XisongSpaceBooking_BackEnd/appsettings.json
+++ b/XisongSpaceBooking_BackEnd/appsettings.json
@@ -5,5 +5,8 @@
       "Microsoft.AspNetCore": "Warning"
     }
   },
-  "AllowedHosts": "*"
+  "AllowedHosts": "*",
+  "ConnectionStrings": {
+    "DefaultConnection": "Server=localhost;Database=xisong_space_booking;User=root;Password=00000000;CharSet=utf8mb4;AllowUserVariables=true;UseAffectedRows=false;"
+  }
 }