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Spring Boot – ApplicationRunner

What is use of Spring Boot ApplicationRunner Interaface? Spring bootApplicationRunnerInterface is used to execute specific lines of code/task just before the Spring Boot Application starts-up. ApplicationRunnerand CommandLineRunnerinterfaces work in the same way and offer a single run method, which is called just before SpringApplication.run(…​) completes. How Spring boot ApplicationRunner interface Works?…

Spring Boot – CommandLineRunner

What is use of Spring Boot CommandLineRunner Interaface? CommandLineRunner Interface is used to execute specific lines of code/task just before the Spring Boot Application starts-up. How CommandLineRunner works? We need to create spring bean using CommandLineRunner interface and spring boot will automatically detect them. CommandLineRunner Interface have run() method that needs to…

Spring Boot – Events & Listeners

Application Listener in Spring Boot bases its events handling on beans implementing org.springframework.context.ApplicationListener interface. It defines only one method, onApplicationEvent which is trigerred when an event is sent. This interface can be generic by specifying the event to which it has to be applied. Spring will filter itself which…

Spring Boot – Dev Tools

What does Spring Boot Devtools (Development Tools)? To make developers life easy, Spring Boot includes an additional set of tools that can help reduce development time and have some pleasant time in programming. The spring-boot-devtools module can be included in any project to provide additional development-time features….

Spring Boot – Starters

Spring Boot Application Starters Spring boot application starters are a set of required dependency description added for execution of project. It’s a kind of predefined template or one-stop shop for all the Spring and related technologies dependency description. For example, if you want to get…

Spring Boot – Hello World

Steps to Create Hello World Example in Spring Boot Step 1: In Eclipse, File > New > Maven Project Step 2: Select an Archetype, maven-archetype-quickstart Step 3: Fill up the Group Id, Artifact Id  Clicking on “Finish” will create a new project in Eclipse. Step 4:…

Spring Boot – Spring Initializr

How to bootstrap a simple project with Spring Initializr? The quickest way to generate Spring Boot projects is through Spring Initializr. Spring Initializr gives options to choose the language, build system, dependencies and JVM version for the project. Over the years, the popularity of spring…

Spring Boot – Getting Started

Spring Boot makes it easy to create stand-alone, production-grade Spring-based Applications that you can run. We take an opinionated view of the Spring platform and third-party libraries, so that you can get started with minimum fuss. Most Spring Boot applications need very little Spring configuration….

Maven – External Dependency

How do I use external dependencies? Dependency management is a core feature of Maven. Managing dependencies for a single project is easy. Managing dependencies for multi-module projects and applications that consist of “n” number of modules is also possible. Maven helps a lot in defining,…

Maven – Filter Resources

How do I filter resource files? Our project sometimes need to fill up or filter resource files using maven during the build time. To accomplish this in Maven, put a reference to the property that will contain the value into your resource file using the syntax ${<property…