Spring Boot Introduction (conference format)

This is the sample app used during an introduction to Spring Boot (conference format, ~ 50min).

We start from scratch and generate a secured web application that exposes a domain object (Speaker) as a REST endpoint.

Note	You can bootstrap a simple web-based project at https://start.spring.io

Running the app locally

There are many ways to start your Spring Boot app locally:

• Run the main method in DemoApplication right from your IDE

• On the command-line, execute mvn spring-boot:run

• Package the project (mvn package) and just execute the jar, that is java -jar target/spring-boot-intro-conference-0.0.1-SNAPSHOT.jar

The H2 database has some default speakers created via import.sql. You can use curl to add more; to create a new Speaker, just POST the following document to your local repository:

{
  "firstName": "John",
  "lastName": "Smith",
  "twitter": "yourTwitterAccountHere",
  "github": "youtGithubAccountHere",
  "bio": "John Smith's bio."
}

something like:

$ curl http://user:user@localhost:8080/speakers -i -H "Content-type: application/json" -d @yourfile.json`

where yourfile.json is the name of the file holding the new Speaker representation.

Note	Cross-Site Request Forgery support should be disabled locally for the command above to work, adding .and().csrf().disable() should do the trick. Also, user/user is the user that is created in the SecurityConfig class.

Running the app in the cloud

If you want to run that exact same app in the cloud, you need first an account with a cloud provider. At the time of writing, you can try Pivotal Web Services for free for 60 days, check https://run.pivotal.io/

Once you’ve registered, you should be able to use cf t to confirm you are connected to the right organization and space.

Pushing your app to the cloud should be as easy as:

• Build your app: mvn package

• Go in the target directory

• Push the app: cf push my-spring-boot-demo -p spring-boot-intro-conference-0.0.1-SNAPSHOT.jar

Note	my-spring-boot-demo is the name of your app and will also be used for the default route of your app (i.e. my-spring-boot-demo.cfapps.io). If that name is taken, update the cf push command accordingly.

That’s it, your app is in the cloud. You can now send a sample json representation of a speaker on the service’s URL. You can also use cf logs my-spring-boot-demo to look at the logs of the app.