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>

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Mastering Spring MVC 4
Geoffroy Warin
Sep, 2015 | 320 pages
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Table of Contents (17 chapters)
Mastering Spring MVC 4
Mastering Spring MVC 4
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Setting Up a Spring Web Application in No Time
Setting Up a Spring Web Application in No Time
Getting started with Spring Tool Suite
Getting started with IntelliJ
Getting started with start.Spring.io
Let's get started
Spring Boot behind the curtains
Error and encoding configuration
Embedded Servlet container (Tomcat) configuration
Summary
2
Mastering the MVC Architecture
Mastering the MVC Architecture
The MVC architecture
MVC critics and best practices
Spring MVC 1-0-1
Using Thymeleaf
Spring MVC architecture
Spring Expression Language
Enough Hello Worlds, let's fetch tweets!
Java 8 streams and lambdas
Material design with WebJars
The check point
Summary
3
Handling Forms and Complex URL Mapping
Handling Forms and Complex URL Mapping
The profile page – a form
Validation
Internationalization
Client validation
The check point
Summary
4
File Upload and Error Handling
File Upload and Error Handling
Uploading a file
Translating the error messages
Placing the profile in a session
Custom error pages
URL mapping with matrix variables
Putting it together
The check point
Summary
5
Crafting a RESTful Application
Crafting a RESTful Application
What is REST?
Richardson's maturity model
API versioning
Useful HTTP codes
Client is the king
Debugging a RESTful API
Customizing the JSON output
A user management API
Status codes and exception handling
Documentation with Swagger
Generating XML
The check point
Summary
6
Securing Your Application
Securing Your Application
Basic authentication
The login form
Twitter authentication
Distributed sessions
SSL
The check point
Summary
7
Leaving Nothing to Luck – Unit Tests and Acceptance Tests
Leaving Nothing to Luck – Unit Tests and Acceptance Tests
Why should I test my code?
How should I test my code?
Test-driven development
The unit tests
The acceptance tests
Our first unit test
Mocks and stubs
Unit testing REST controllers
Testing the authentication
Writing acceptance tests
The check point
Summary
8
Optimizing Your Requests
Optimizing Your Requests
A production profile
Gzipping
Cache control
Application cache
Async methods
ETags
WebSockets
The check point
Summary
9
Deploying Your Web Application to the Cloud
Deploying Your Web Application to the Cloud
Choosing your host
Deploying your web application to Pivotal Web Services
Deploying your web application on Heroku
Improving your application
Summary
10
Beyond Spring Web
Beyond Spring Web
The Spring ecosystem
The deployment
Single Page Applications
Summary
Index
Index

Twitter authentication

Our application is strongly integrated with Twitter, so it seems logical that we would allow authentication through Twitter.

Before going further, make sure that you have enabled Twitter sign in on your app on Twitter (https://apps.twitter.com):

Setting up social authentication

Spring social enables authentication through an OAuth provider such as Twitter through a signin/signup scenario. It will intercept a POST request on /signin/twitter. If the user is not known to the UsersConnectionRepository interface, the signup endpoint will be called. It will allow us to take the necessary measures to register the user on our system and maybe ask them for additional details.

Let's get to work. The first thing we need to do is to add the signin/** and /signup URLs as publicly available resources. Let's modify our WebSecurityConfiguration class, changing the permitAll line:

.antMatchers("/webjars/**", "/login", "/signin/**", "/signup").permitAll()

To enable the signin/signup scenario...

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