At the end of this chapter, you should have one controller, the TweetController, handling the search and the untouched generated configuration class, MasterSpringMvcApplication, in the src/main/java directory:

In the src/main/resources directory, you should have one default layout and two pages using it.

In the application.properties file, we added the Twitter application credentials as well as a property telling Spring not to cache the templates to ease development: