README.md

Spring MVC

Examples:

• Greeting
• Registration

Vocabulary

• SPA: Single Page Application
• DispatcherServlet: Entry point into the application
• Controller: Command Pattern Handler
• RequestMapping: URL and Request Type
• ViewResolver: Locates View to serve
• Servlet-config: Configuration file (Can also be done using java configuration)
• POJO: Plain Old Java Object
• Bean: Spring configured POJO

Configuration

• pom.xml (dependencies)
• Config (XML or Java)
• Java (Controller, Model, Configuration etc.)
• View

Model - View - Controller

Application Layers

• Presentation Layer
• Business Logic
• Data Layer

Components

• Controller
• Service
• Repository

DispatcherServlet

The Application class extends SpringBootServletInitializer which tells the application server to create a DispatcherServlet.

The @SpringBootApplication annotation contains:

• @EnableAutoConfiguration
• @ComponentScan
• @Configuration

Because of the @Component scan the application will pick up on our controllers annotated with @Controller.

Interceptors

• Logging
• Security
• I18N
• Performance Monitoring

JSR Bean Validation

Dependency:

<dependency>
    <groupId>org.hibernate.validator</groupId>
    <artifactId>hibernate-validator</artifactId>
</dependency>

Spring MVC with Client-side JavaScript Applications

@RestController: The heart of rest-services

Examples:

• Default user
• Dan
• jQuery