update src/main/resources/application-dev.yml.

src/main/resources/application-dev.yml

@@ -1,6 +1,6 @@
 spring:
   datasource:
-    url: jdbc:mysql:/localhost:3306/mcms?useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&autoReconnect=true&allowMultiQueries=true&useSSL=true
+    url: jdbc:mysql://localhost:3306/mcms?useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&autoReconnect=true&allowMultiQueries=true&useSSL=true
     username: root
     password: root
     filters: wall,mergeStat