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Architecture StyleREST stands for REpresentational State Transfer. It’s a set of guidelines application developers use to design APIs.There are four principles that APIs follow:Data and functionality in the API are considered “resources” and identified through something called the URI, or Uniform Resource Identifier. These are accessed by web links.Resources are manipulated using a fixed set of ..

Testing With JUnit and SeleniumThe figure above shows the test-driven development lifecycle. First, there is an idea for a new feature. That feature idea is turned into a series of user stories, which are then turned into tests, which fail because the feature does not exist yet. The developers then work on the feature’s code requirements until all of the tests pass, and the cycle begins anew.Tes..

ORM and SecurityThe figure above shows the growing layers of our application. By adding MyBatis, we now have a translation from the Java and Spring world to the world of databases and SQL.Why a database is required?Adding a database to our application is a way to externalize data persistence problems. When storing data in memory at runtime, we struggle to deal with:Storage SpaceConcurrencyPersis..

It’s a visible step into the world of Java web development, how Spring MVC and Thymeleaf work.Spring MVC and ThymeleafDeveloping Web Sites from the Back-EndThe figure above shows the relationship between Spring MVC and the client. Spring MVC uses HTML templates and application data to render a view for the client browser to display. The view exposes certain actions to the user, which when trigge..

Spring Boot Basics for Web DevelopmentThe Spring FrameworkThe Spring TransformationThe figure above shows that Spring takes the component class files and dependency configuration from the developer and instantiates a system of Java objects with references to each other.Of all the tools we’ll be using in this course, Spring is the most important because it defines our entire style of application ..

Java Application ServersWhat is servlet?Think of a servlet as a small Java program that runs on the server and handles requests and generates responses for web applications. It’s like a waiter in a restaurant — when you (the client) make a request (like ordering food), the servlet (the waiter) takes your request, processes it, and serves you the response (the food).Here’s a breakdown of what a s..

Spring is implements “Inversion of Control” : IoC help my application components to connect with each other and reduces errors and increase code flexibility.I am going to learn how to build and manage each of those components in Java using spring boot. Web Development means building web applications, and in a standard web application, there are three main components:Data StorageApplication Logic..