change the datasource from 238 mysql 5.7 to 228 mysql 8.0

src/main/resources/application-db-228v8.yml

@@ -0,0 +1,5 @@
+spring:
+  datasource:
+    url: jdbc:mysql://192.168.1.228:3308/towngasdb?useUnicode=true&characterEncoding=UTF8&serverTimezone=GMT%2B8
+    username: root
+    password: secret