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Now that the service is up, visit http://localhost:8080/greeting, where you see:

{"id":1,"content":"Hello, World!"}

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Provide a name query string parameter with http://localhost:8080/greeting?name=User.

{"id":2,"content":"Hello, User!"}

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@SpringBootApplication is a convenience annotation that adds all of the following:

• @Configuration tags the class as a source of bean definitions for the application context.
• @EnableAutoConfiguration tells Spring Boot to start adding beans based on classpath settings, other beans, and various property settings.
• Normally you would add @EnableWebMvc for a Spring MVC app, but Spring Boot adds it automatically when it sees spring-webmvc on the classpath. This flags the application as a web application and activates key behaviors such as setting up a DispatcherServlet.
• @ComponentScan tells Spring to look for other components, configurations, and services in the package, allowing it to find the GreetingController.

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The Spring Boot gradle plugin provides many convenient features:

• It collects all the jars on the classpath and builds a single, runnable über-jar, which makes it more convenient to execute and transport your service.
• It searches for the public static void main() method to flag as a runnable class.
• It provides a built-in dependency resolver that sets the version number to match Spring Boot dependencies. You can override any version you wish, but it will default to Boot’s chosen set of versions.