Learning objectives:

Here's the setup:

-bash-4.2$ pwd
/u/dgerman/apache/htdocs/spring-boot/fall2019/step06
-bash-4.2$ tree
.
+-- pom.xml
+-- src
    +-- main
        +-- java
        |   +-- com
        |       +-- example
        |           +-- demo
        |               +-- HomeController.java
        |               +-- Song.java
        |               +-- SpringBoot06Application.java
        +-- resources
            +-- templates
                +-- confirmsong.html
                +-- songform.html

8 directories, 6 files
-bash-4.2$
Build and run like before:
 1272  mvn package
 1273  which mvn
 1274  mvn -version
 1276  java -jar target/demo-0.0.1-SNAPSHOT.jar --server.port=31415
Then when you go online how will you call your application?