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Java Projects

You're reading from   Java Projects Learn the fundamentals of Java 11 programming by building industry grade practical projects

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Product type Paperback
Published in Aug 2018
Publisher Packt
ISBN-13 9781789131895
Length 524 pages
Edition 2nd Edition
Languages
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Author (1):
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Peter Verhas Peter Verhas
Author Profile Icon Peter Verhas
Peter Verhas
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Table of Contents (12) Chapters Close

Preface 1. Getting Started with Java 11 FREE CHAPTER 2. The First Real Java Program - Sorting Names 3. Optimizing the Sort - Making Code Professional 4. Mastermind - Creating a Game 5. Extending the Game - Run Parallel, Run Faster 6. Making Our Game Professional - Do it as a Web App 7. Building a Commercial Web Application Using REST 8. Extending Our E-Commerce Application 9. Building an Accounting Application Using Reactive Programming 10. Finalizing Java Knowledge to a Professional Level 11. Other Books You May Enjoy

Order controller and DTOs

When a request comes to the server to order a bunch of products, it comes in an HTTPS POST request. The body of the request is encoded in JSON. Till now, we had controllers that were handling GET parameters. Handling POST requests are not much more difficult when we can rely on the data marshaling of Spring. The controller code itself is simple:

package packt.java11.bulkorder.controllers;

import ...

@RestController
public class OrderController {
    private static final Logger log = LoggerFactory.getLogger((OrderController.class));
    private final Checker checker;

    public OrderController(@Autowired Checker checker) {
        this.checker = checker;
    }

    @RequestMapping("/order")
    public Confirmation getProductInformation(@RequestBody Order order) {
        if (checker.isConsistent(order)) {
            return Confirmation.accepted...
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