1. Setup Routine for an Enterprise Spring Application
by Geoffroy Warin, Alex Bretet, Hamidreza Sattari, Shameer Kunjumohamed
Spring MVC: Designing Real-World Web Applications
- Spring MVC: Designing Real-World Web Applications
- Table of Contents
- Spring MVC: Designing Real-World Web Applications
- Spring MVC: Designing Real-World Web Applications
- Credits
- Preface
- I. Module 1
- 1. Getting Started with Spring Core
- The Spring landscape
- Design concepts behind Spring Framework
- Setting up the development environment
- Your first Spring application
- Dependency Injection
- Beans in detail
- Bean definition
- Instantiating beans
- Injecting bean dependencies
- Constructor-based or setter-based DI – which is better?
- Cleaner bean definitions with namespace shortcuts
- Wiring a List as a dependency
- Wiring a Map as a dependency
- Autowiring dependencies
- Bean scoping
- Dependency Injection with scoped beans
- Creating a custom scope
- Hooking to bean life cycles
- Container-level default-init-method and default-destroy-method
- Working with bean definition profiles
- Injecting properties into the Spring environment
- Externalizing properties with PropertyPlaceholderConfigurer
- Handling resources
- Spring Expression Language
- Aspect Oriented Programming
- Testing with Spring
- Summary
- 2. Building the Web Layer with Spring Web MVC
- Features of Spring MVC
- The Model-View-Controller pattern
- Your first Spring MVC application
- Setting up a Spring MVC application
- The architecture and components of Spring MVC
- DispatcherServlet explained
- Controllers in detail
- Mapping request URLs with @RequestMapping
- URI template patterns with the @PathVariable annotation
- Binding parameters with the @RequestParam annotation
- Request handler method arguments
- Request handler method return types
- Setting Model attributes
- Building RESTful services for JSON and XML media
- Building a RESTful service with RestController
- Asynchronous request processing in Spring MVC
- Working with views
- Spring and Spring form tag libraries
- Composing a form in JSP
- Validating forms
- Handling file uploads
- Resolving Thymeleaf views
- More view technologies
- Summary
- 3. Accessing Data with Spring
- Configuring DataSource
- Using embedded databases
- Handling exceptions in the Spring Data layer
- DAO support and @Repository annotation
- Spring JDBC abstraction
- Spring Data
- Spring Transaction support
- Relevance of Spring Transaction
- Summary
- 4. Understanding WebSocket
- 5. Securing Your Applications
- 6. Building a Single-Page Spring Application
- The motivations behind SPAs
- SPAs explained
- Introducing Ember.js
- The anatomy of an Ember application
- Working with Ember CLI
- Understanding the Ember object model
- Working with collections
- Building UI templates using Handlebars
- Handling routes
- Handling UI behavior using components
- Persisting data with Ember Data
- Building a Taskify application
- Building the API server app
- Building the Taskify Ember app
- Summary
- 7. Integrating with Other Web Frameworks
- 1. Getting Started with Spring Core
- II. Module 2
- 1. Setup Routine for an Enterprise Spring Application
- Introduction
- Installing Eclipse for JEE Developers and Java SE 8
- Configuring Eclipse for Java 8, Maven 3, and Tomcat 8
- Defining the project structure with Maven
- Installing Spring, Spring MVC, and a web structure
- 2. Designing a Microservice Architecture with Spring MVC
- Introduction
- Configuring a controller with simple URL mapping
- Configuring a fallback controller using ViewResolver
- Setting up and customizing a responsive single page webdesign with Bootstrap
- Displaying a model in the View, using the JSTL
- Defining a common WebContentInterceptor
- Designing a client-side MVC pattern with AngularJS
- 3. Working with Java Persistence and Entities
- 4. Building a REST API for a Stateless Architecture
- Introduction
- Binding requests and marshalling responses
- Configuring content-negotiation (JSON, XML, and so on)
- Adding pagination, filters, and sorting capabilities
- Handling exceptions globally
- Documenting and exposing an API with Swagger
- 5. Authenticating with Spring MVC
- Introduction
- Configuring Apache HTTP to proxy your Tomcat(s)
- Adapting users and roles to Spring Security
- Authenticating over a BASIC scheme
- Authenticating with a third-party OAuth2 scheme
- Storing credentials in a REST environment
- Authorizing on services and controllers
- 6. Implementing HATEOAS
- 7. Developing CRUD Operations and Validations
- Introduction
- Extending REST handlers to all HTTP methods
- Validating resources using bean validation support
- Internationalizing messages and contents for REST
- Validating client-side forms with HTML5 AngularJS
- 8. Communicating Through WebSockets and STOMP
- Introduction
- Streaming social events with STOMP over SockJS
- Using RabbitMQ as a multiprotocol message broker
- Stacking and consuming tasks with RabbitMQ and AMQP
- Securing messages with Spring Session and Redis
- Getting ready
- How to do it…
- How it works...
- There's more…
- See also
- 9. Testing and Troubleshooting
- Introduction
- Automating Database Migrations with FlyWay
- Unit testing with Mockito and Maven Surefire
- Integration testing with Cargo, Rest-assured, and Maven failsafe
- Injecting Spring Beans into integration tests
- Modern application Logging with Log4j2
- Getting ready
- How to do it…
- How it works...
- There is more…
- Automatic configuration
- Official documentation
- Interesting Redis Appender implementation
- III. Module 3
- 1. Mastering the MVC Architecture
- 2. Handling Forms and Complex URL Mapping
- 3. File Upload and Error Handling
- 4. Crafting a RESTful Application
- 5. Securing Your Application
- 6. Leaving Nothing to Luck – Unit Tests and Acceptance Tests
- 7. Optimizing Your Requests
- 8. Deploying Your Web Application to the Cloud
- 9. Beyond Spring Web
- A. Bibliography
- Index
- 1. Setup Routine for an Enterprise Spring Application
The topics covered in this chapter correspond to this four-step routine:
- Installing Eclipse for JEE developers and Java SE 8
- Configuring Eclipse for Java SE 8, Maven 3, and Tomcat 8
- Defining the project structure with Maven
- Installing Spring, Spring MVC, and a web structure
Before we dive into this routine for initializing the developments, we are going to answer, as an introduction, a couple of questions that should help you understand the routine better.
Remember that the result of this chapter will also constitute the minimal starting point for all the further chapters.
Note
Let's do it with fun!
Throughout this book, we will be acting on behalf of the ZipCloud company. ZipCloud aims to build different products in the social and financial industry. We are going to build the first product of the company: cloudstreetmarket.com which will be a wonderful stock exchange platform with social capabilities. This project must be an optimal beginning for this little ZipCloud start-up!
Whatever your initial objectives may be, it is necessary to make sure that the design will not suffer from early stage failures. This routine should cover you against this risk.
The idea beyond the routine itself is to share a bootstrap methodology to kick off the project base that you need now and that will support your needs tomorrow. The routine is also a key to drive your product thoughts toward a sustainable architecture which will be easy to refactor and to maintain.
Setting up a new project for an enterprise-level architecture will not kill the excitement and creativity!
There is competition in the domain, but Eclipse is popular among the Java community for being an active open source solution; it is consequently accessible online to anyone with no restrictions. It also provides, among other usages, a very good support for web implementations and particularly to MVC web implementations.
Maven is a software project management and comprehension tool. It is an open source project supported by the Apache community and the Apache Software Foundation. For nearly 10 years, Maven has given massive benefits. It has also shaped a standard structure for Java projects. With its Project Object Model (POM) approach, it provides, to anyone and potentially to any third-party software, a uniform and radical way of understanding and building a Java project hierarchy with all its dependencies.
In early stage architectures, it is critical to consider the following decisions:
- Opening the project definition to potentially different development environments and continuous integration tools
- Monitoring the dependencies and maybe securing their access
- Imposing a uniform directory structure within the project hierarchy
- Building a self-tested software with self-tested components
Choosing Maven secures these points and fulfills our project's need to make our project reusable, secure, and testable (under automation).
The Spring Framework and its community have contributed to pulling forward the Java platform for more than a decade. Presenting the whole framework in detail would require us to write more than a book. However, the core functionality based on the principles of Inversion of Control (IOC) and Dependency Injection (DI) through a performant access to the bean repository allows considerable reusability. Staying lightweight, it secures great scaling capabilities and could probably suit all modern architectures.
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