The exercises in this project are designed to help you understand Spring Boot MVC.
To get started, open the project file located in spring-boot-and-mvc/pom.xml
in IntelliJ.
This project contains a simple Spring Boot application with a controller class
and a model class for managin a list of books. The list is defined in the
BookController class as a simple in-memory list that is initialized with a few
books when the application starts.
The Book model class contains a simple class with fields for the id, title,
author, and year of publication. You will not need to modify this class.
The BookController class contains an ArrayList of
books and you will need to implement the following REST endpoints by filling
in the appropriate methods in the controller class and applying the appropriate
Spring annotations
To complete this exercise, you will need to implement the following REST
endpoints in the BookController class:
GET /books- Returns a list of all books in the list.GET /books/{id}- Returns a single book with the given id.POST /books- Adds a new book to the list.PUT /books/{id}- Updates an existing book with the given id.DELETE /books/{id}- Deletes a book with the given id.
To implement these endpoints, you will need to use the appropriate Spring annotations to map the endpoints to the methods in the controller class. You will also need to use the correct annotations for any method parameters to map request parameters or request bodies to method arguments.
To test the application, you can use Postman to send requests to the REST endpoints. If you are unfamiliar with Postman, you can complete the lesson on Postman from later in this course, and then return to this exercise.
First, launch the application by right-clicking on the SpringBootMvcApplication
class and selecting "Run 'SpringBootMvcApplication'".
Next, open Postman and create a new request by clicking on the "New" button in
To test the GET /books endpoint, send a GET request to
http://localhost:8080/books. You should receive a response with a list of
books.
To test the GET /books/{id} endpoint, send a GET request to
http://localhost:8080/books/{id} where {id} is the id of the book you want
to retrieve. You should receive a response with the book with the given id.
To test the POST /books endpoint, send a POST request to
http://localhost:8080/books with a JSON body containing the book you want to
add. You should receive a response with the book that was added. You can call
the GET /books endpoint to verify that the book was added.
To test the PUT /books/{id} endpoint, send a PUT request to
http://localhost:8080/books/{id} with a JSON body containing the book you want
to update, and replacing {id} with the id of the book you want to update. You
should receive a response with the updated book. You can call the GET /books
endpoint to verify that the book was updated.
To test the DELETE /books/{id} endpoint, send a DELETE request to
http://localhost:8080/books/{id} where {id} is the id of the book you want
to delete. You should receive a response with the book that was deleted. You
can call the GET /books endpoint to verify that the book was deleted.
As always, final verification of your code should be done by running the unit tests.
To run the tests, right-click on the test/java/org.example/src/ExerciseTests
class and select "Run 'ExercisesTests'". This will run all of the tests for
the exercises. When a test succeeds, you will see a green checkmark next to
the test. When a test fails, you will see a red X next to the test. Once all
of the tests pass, you have completed the exercises.