Spring @PostConstruct and @PreDestroy - Example
Annotations @PostConstruct and @PreDestroy, standardized by JSR-250, are generally considered the best practice for obtaining lifecycle callbacks in a modern Spring application. @PostConstruct annotation defines a method that will run only once, just after the initialization of bean. @PreDestroy annotation defines a method that will run only once, just before Spring removes the bean from the application context. Complete Example We are creating a simple maven project. You could clone the code from our GitHub repo. Final Project Directory Complete pom.xml <? xml version ="1.0" encoding ="UTF-8" ?> < project xmlns ="http://maven.apache.org/POM/4.0.0" xmlns: xsi ="http://www.w3.org/2001/XMLSchema-instance" xsi :schemaLocation ="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" > < modelVersion >4.0.0</ modelVersion > < groupId >com.knf.dev.demo&l