Book Image

Spring MVC Cookbook

By : Alexandre Bretet, Alex Bretet
Book Image

Spring MVC Cookbook

By: Alexandre Bretet, Alex Bretet

Overview of this book

Spring MVC is a lightweight application framework that comes with a great configuration by default. Being part of the Spring Framework, it naturally extended and supported it with an amazing set of recognizable annotations. External libraries can be plugged in and plugged out. It also possesses a request flow. Complete support of REST web services makes the Spring architecture an extremely consistent choice to support your front-end needs and Internet transformations. From the design of your Maven modules, you will achieve an Enterprise-standard for a stateless REST application based on Spring and Spring MVC with this book. This guide is unique in its style as it features a massive overview of practical development techniques brought together from the Spring ecosystem, the new JEE standards, the JavaScript revolution and Internet of Things. You will begin with the very first steps of Spring MVC's product design. Focused on deployment, viability, and maintainability, you will learn the use of Eclipse, Maven, and Git. You will walk through the separation of concerns driven by the microservices principles. Using Bootstrap and AngularJS, you will develop a responsive front-end, capable of interacting autonomously with a REST API. Later in the book, you will setup the Java Persistence API (JPA) within Spring; learn how to configure your Entities to reflect your domain needs, and discover Spring Data repositories. You will analyze how Spring MVC responds to complex HTTP requests. You will implement Hypermedia and HATEOAS to guide your customer's stateless conversation with the product and see how a messaging-service based on WebSocket can be configured. Finally you will learn how to set up and organize different levels of automated-tests, including logging and monitoring.
Table of Contents (16 chapters)
Spring MVC Cookbook
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Displaying a model in the View, using the JSTL


This recipe shows how to populate the Spring MVC View with data and how to render this data within the View.

Getting ready

At this point, we don't have any real data to be displayed in our View. For this purpose, we have created three DTOs and two service layers that are injected from their Interface into the controller.

There are two dummy service implementations that are designed to produce a fake set of data. We will use the Java Server Tags Library (JSTL) and the JSP Expression Language (JSP EL) to render the server data in the right places in our JSP.

How to do it...

  1. After checking out the v2.x.x branch (in the previous recipe), a couple of new components are now showing-up in the cloudstreetmarket-core module: two interfaces, two implementations, one enum, and three DTOs. The code is as follows:

    public interface IMarketService {
      DailyMarketActivityDTO getLastDayMarketActivity(String string);
      List<MarketOverviewDTO> getLastDayMarketsOverview...