springboot app, mock database or oracle database

1.install oracle jdbc and init database

2.use mock dao or database dao in EmployeeController.java

4.use war

to test: 
mvn spring-boot:run / java -jar target/employee.war

to package:
mvn clean package

3.use jar

uncomment App.java, comment out AppWar.java

to test: 
mvn -f jar.xml spring-boot:run / mvn -f jar.xml clean test exec:java

to package:
mvn -f jar.xml clean package

5.deploy to tomcat/weblogic 12.2.1.2/JCS/ACCS/OCCS