....

examcloud-core-basic-starter/src/main/resources/application.properties

@@ -3,6 +3,6 @@ spring.profiles.active=dev
 examcloud.startup.startupCode=8000
 examcloud.startup.configCenterHost=127.0.0.1
 examcloud.startup.configCenterPort=9999
-examcloud.startup.appSimpleName=basic
+examcloud.startup.appCode=B