Book Image

Mastering Spring MVC 4

By : Geoffroy Warin
Book Image

Mastering Spring MVC 4

By: Geoffroy Warin

Overview of this book

<p>Spring MVC is the ideal tool to build modern web applications on the server side. With the arrival of Spring Boot, developers can really focus on the code and deliver great value, leveraging the rich Spring ecosystem with minimal configuration.</p> <p>Spring makes it simple to create RESTful applications, interact with social services, communicate with modern databases, secure your system, and make your code modular and easy to test. It is also easy to deploy the result on different cloud providers.</p> <p>Mastering Spring MVC will take you on a journey from developing your own web application to uploading it on the cloud.</p> <p>You begin by generating your own Spring project using Spring Tool suite and Spring Boot.</p> <p>As you develop an advanced-level interactive application that can handle file uploads as well as complex URLs, you will dive into the inner workings of Spring MVC and the principles of modern web architectures.</p> <p>You will then test, secure, and optimize your Spring web application and design RESTful services that will be consumed on the frontend.</p> <p>Finally, when everything is ready, you will release your application on a cloud provider and invite everyone to see.</p>
Table of Contents (17 chapters)
Mastering Spring MVC 4
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

URL mapping with matrix variables


We are now aware of what our user is interested in. It would be a good idea to improve our Tweet controller so that it allows searching from a list of keywords.

One interesting way to pass key-value pairs in a URL is to use a matrix variable. It is pretty similar to request parameters. Consider the following code:

someUrl/param?var1=value1&var2=value2

Instead of the preceding parameter, matrix variables understand this:

someUrl/param;var1=value1;var2=value2

They also allow each parameter to be a list:

someUrl/param;var1=value1,value2;var2=value3,value4

A matrix variable can be mapped to different object types inside a controller:

  • Map<String, List<?>>: This handles multiple variables and multiple values

  • Map<String, ?>: This handles a case in which each variable has only one value

  • List<?>: This is used if we are interested in a single variable whose name can be configured

In our case, we want to handle something like this:

http://localhost...