Modern Java Web Applications with Spring Boot 2.x

Getting Started with Spring Boot 2.x Development 9 lectures 01:17:52 The Course Overview This video provides an overview of the entire course. Setting Up the Development Environment Problem: The previous Spring Boot versions do not support Java 12 and Servlet 4.0 container. Solution: This video will show viewers that Java 12 can now be used to create Spring Boot 2.2 project, compile, and run its components with some additional mandatory requirements.

• Download Java 12 from OpenJDK site and install it
• Download Eclipse STS 4 and configure it to create the Spring Boot 2.2 project
• Install Gradle 5.6 and configure it to manage the libraries, compile, and run the new platform

Creating a Starter Project with Spring Initializr Problem: In a tight schedule, it is always not applicable to setup the development environment from scratch. Solution: The easiest way of setting up Spring Boot 2.2 application is through the Spring Initializr service.

• Access to start choosing the appropriate project features
• Include option Java 12, the latest Gradle 5 distribution, and at least Spring Web module
• Open the project using STS 4 IDE after generating it

Adding @Controller and URL Mappings Problem: The first portion to implement is the HTTP request layer in a Spring Boot 2.2 way. Solution: This portion will show viewer how easy it is to establish the layer, that will manage HTTP request and response, without implementing MvcConfigurer.

• Implement @Controller classes mapped to URL paths by @RequestMapping
• Create request handlers through @GetMapping and @PostMapping
• Inject singleton and prototype Spring @Bean, using @Configuration classes

Binding Request Parameters Problem: Request parameters and form data must be captured in an HTTP request transaction. Solution: Just like any other web platform, Spring Boot 2.2 has a way of managing and retrieving request parameters and form data, through its Spring Framework 5.

• Create and manage @PathVariables to pass request data through the URL address
• Capture form parameters using @RequestParam in a form-url-encoded transaction
• Control user input through @PathVariable using regular expressions

Understanding Form Transactions Problem: There are three different types of form handling transactions supported by HTTP. Solution: Spring Boot 2.2 can implement these three form handling transactions.

• Implement form-url-encoded type of transaction and map form data to form-backing object
• Implement a multipart-form transaction and map file object to MultipartFile
• Implement a text-based form transaction

Creating the Views Problem: Create views made up of different Java template engines. Solution: Spring has an auto-configured support for Freemarker, Thymeleaf, Groovy templates, and Mustache; but it can be overridden if we use them all at once, in one application.

• Create four category views according to Freemarker, Thymeleaf, Groovy templates, and Mustache view engines
• Create a @Configuration class, to override the respective autoconfiguration of each Java view template engines
• Apply look and feel UI features, using Bootstrap framework

Managing Exceptions Problem: Create custom exceptions and global error page, that will replace the White Label error page. Solution: Spring Boot 2.2 can implement exception handlers using concepts of Spring 5 framework.

• Implement @Controller-scoped @ExceptionHandler with @ResponseStatus provided
• Create a @ControllerAdvice which uses AOP to run trigger exceptions
• Override ErrorHandler API class to implement custom global web error-handler, that will replace the White Label error page

Managing Cross-Cut Concerns Problem: With the highlight of @ControllerAdvice, AOP can also be used to manage cross-cut implementations. Solution: Spring Boot supports Spring 5 AOP features.

• Create an @Aspect class, that will implement some advice methods
• Highlight @Before, @After, and @Around advice methods, and create @Pointcut expressions
• Use AOP to validate method parameters at runtime, and perform event handling mechanism, using ApplicationEvent

Getting Started with Spring Boot 2.x Development - Quiz Getting Started with Spring Boot 2.x Development. 9 lectures 01:17:52 The Course Overview This video provides an overview of the entire course. Setting Up the Development Environment Problem: The previous Spring Boot versions do not support Java 12 and Servlet 4.0 container. Solution: This video will show viewers that Java 12 can now be used to create Spring Boot 2.2 project, compile, and run its components with some additional mandatory requirements.

• Download Java 12 from OpenJDK site and install it
• Download Eclipse STS 4 and configure it to create the Spring Boot 2.2 project
• Install Gradle 5.6 and configure it to manage the libraries, compile, and run the new platform

Creating a Starter Project with Spring Initializr Problem: In a tight schedule, it is always not applicable to setup the development environment from scratch. Solution: The easiest way of setting up Spring Boot 2.2 application is through the Spring Initializr service.

• Access to start choosing the appropriate project features
• Include option Java 12, the latest Gradle 5 distribution, and at least Spring Web module
• Open the project using STS 4 IDE after generating it

Adding @Controller and URL Mappings Problem: The first portion to implement is the HTTP request layer in a Spring Boot 2.2 way. Solution: This portion will show viewer how easy it is to establish the layer, that will manage HTTP request and response, without implementing MvcConfigurer.

• Implement @Controller classes mapped to URL paths by @RequestMapping
• Create request handlers through @GetMapping and @PostMapping
• Inject singleton and prototype Spring @Bean, using @Configuration classes

Binding Request Parameters Problem: Request parameters and form data must be captured in an HTTP request transaction. Solution: Just like any other web platform, Spring Boot 2.2 has a way of managing and retrieving request parameters and form data, through its Spring Framework 5.

• Create and manage @PathVariables to pass request data through the URL address
• Capture form parameters using @RequestParam in a form-url-encoded transaction
• Control user input through @PathVariable using regular expressions

Understanding Form Transactions Problem: There are three different types of form handling transactions supported by HTTP. Solution: Spring Boot 2.2 can implement these three form handling transactions.

• Implement form-url-encoded type of transaction and map form data to form-backing object
• Implement a multipart-form transaction and map file object to MultipartFile
• Implement a text-based form transaction

Creating the Views Problem: Create views made up of different Java template engines. Solution: Spring has an auto-configured support for Freemarker, Thymeleaf, Groovy templates, and Mustache; but it can be overridden if we use them all at once, in one application.

• Create four category views according to Freemarker, Thymeleaf, Groovy templates, and Mustache view engines
• Create a @Configuration class, to override the respective autoconfiguration of each Java view template engines
• Apply look and feel UI features, using Bootstrap framework

Managing Exceptions Problem: Create custom exceptions and global error page, that will replace the White Label error page. Solution: Spring Boot 2.2 can implement exception handlers using concepts of Spring 5 framework.

• Implement @Controller-scoped @ExceptionHandler with @ResponseStatus provided
• Create a @ControllerAdvice which uses AOP to run trigger exceptions
• Override ErrorHandler API class to implement custom global web error-handler, that will replace the White Label error page

Managing Cross-Cut Concerns Problem: With the highlight of @ControllerAdvice, AOP can also be used to manage cross-cut implementations. Solution: Spring Boot supports Spring 5 AOP features.

• Create an @Aspect class, that will implement some advice methods
• Highlight @Before, @After, and @Around advice methods, and create @Pointcut expressions
• Use AOP to validate method parameters at runtime, and perform event handling mechanism, using ApplicationEvent

Getting Started with Spring Boot 2.x Development - Quiz The Course Overview This video provides an overview of the entire course. The Course Overview This video provides an overview of the entire course. The Course Overview This video provides an overview of the entire course. The Course Overview This video provides an overview of the entire course. This video provides an overview of the entire course. This video provides an overview of the entire course. Setting Up the Development Environment Problem: The previous Spring Boot versions do not support Java 12 and Servlet 4.0 container. Solution: This video will show viewers that Java 12 can now be used to create Spring Boot 2.2 project, compile, and run its components with some additional mandatory requirements.

• Download Java 12 from OpenJDK site and install it
• Download Eclipse STS 4 and configure it to create the Spring Boot 2.2 project
• Install Gradle 5.6 and configure it to manage the libraries, compile, and run the new platform

Setting Up the Development Environment Problem: The previous Spring Boot versions do not support Java 12 and Servlet 4.0 container. Solution: This video will show viewers that Java 12 can now be used to create Spring Boot 2.2 project, compile, and run its components with some additional mandatory requirements.

• Download Java 12 from OpenJDK site and install it
• Download Eclipse STS 4 and configure it to create the Spring Boot 2.2 project
• Install Gradle 5.6 and configure it to manage the libraries, compile, and run the new platform

Setting Up the Development Environment Problem: The previous Spring Boot versions do not support Java 12 and Servlet 4.0 container. Solution: This video will show viewers that Java 12 can now be used to create Spring Boot 2.2 project, compile, and run its components with some additional mandatory requirements.

• Download Java 12 from OpenJDK site and install it
• Download Eclipse STS 4 and configure it to create the Spring Boot 2.2 project
• Install Gradle 5.6 and configure it to manage the libraries, compile, and run the new platform

Setting Up the Development Environment Problem: The previous Spring Boot versions do not support Java 12 and Servlet 4.0 container. Solution: This video will show viewers that Java 12 can now be used to create Spring Boot 2.2 project, compile, and run its components with some additional mandatory requirements.

• Download Java 12 from OpenJDK site and install it
• Download Eclipse STS 4 and configure it to create the Spring Boot 2.2 project
• Install Gradle 5.6 and configure it to manage the libraries, compile, and run the new platform

Problem: The previous Spring Boot versions do not support Java 12 and Servlet 4.0 container. Solution: This video will show viewers that Java 12 can now be used to create Spring Boot 2.2 project, compile, and run its components with some additional mandatory requirements.

• Download Java 12 from OpenJDK site and install it
• Download Eclipse STS 4 and configure it to create the Spring Boot 2.2 project
• Install Gradle 5.6 and configure it to manage the libraries, compile, and run the new platform

Problem: The previous Spring Boot versions do not support Java 12 and Servlet 4.0 container. Solution: This video will show viewers that Java 12 can now be used to create Spring Boot 2.2 project, compile, and run its components with some additional mandatory requirements.

• Download Java 12 from OpenJDK site and install it
• Download Eclipse STS 4 and configure it to create the Spring Boot 2.2 project
• Install Gradle 5.6 and configure it to manage the libraries, compile, and run the new platform

Creating a Starter Project with Spring Initializr Problem: In a tight schedule, it is always not applicable to setup the development environment from scratch. Solution: The easiest way of setting up Spring Boot 2.2 application is through the Spring Initializr service.

• Access to start choosing the appropriate project features
• Include option Java 12, the latest Gradle 5 distribution, and at least Spring Web module
• Open the project using STS 4 IDE after generating it

Creating a Starter Project with Spring Initializr Problem: In a tight schedule, it is always not applicable to setup the development environment from scratch. Solution: The easiest way of setting up Spring Boot 2.2 application is through the Spring Initializr service.

• Access to start choosing the appropriate project features
• Include option Java 12, the latest Gradle 5 distribution, and at least Spring Web module
• Open the project using STS 4 IDE after generating it

Creating a Starter Project with Spring Initializr Problem: In a tight schedule, it is always not applicable to setup the development environment from scratch. Solution: The easiest way of setting up Spring Boot 2.2 application is through the Spring Initializr service.

• Access to start choosing the appropriate project features
• Include option Java 12, the latest Gradle 5 distribution, and at least Spring Web module
• Open the project using STS 4 IDE after generating it

Creating a Starter Project with Spring Initializr Problem: In a tight schedule, it is always not applicable to setup the development environment from scratch. Solution: The easiest way of setting up Spring Boot 2.2 application is through the Spring Initializr service.

• Access to start choosing the appropriate project features
• Include option Java 12, the latest Gradle 5 distribution, and at least Spring Web module
• Open the project using STS 4 IDE after generating it

Problem: In a tight schedule, it is always not applicable to setup the development environment from scratch. Solution: The easiest way of setting up Spring Boot 2.2 application is through the Spring Initializr service.

• Access to start choosing the appropriate project features
• Include option Java 12, the latest Gradle 5 distribution, and at least Spring Web module
• Open the project using STS 4 IDE after generating it

Problem: In a tight schedule, it is always not applicable to setup the development environment from scratch. Solution: The easiest way of setting up Spring Boot 2.2 application is through the Spring Initializr service Binding Request Parameters Problem: Request parameters and form data must be captured in an HTTP request transaction. Solution: Just like any other web platform, Spring Boot 2.2 has a way of managing and retrieving request parameters and form data, through its Spring Framework 5.

• Create and manage @PathVariables to pass...