Spring

URL: https://www.progressiverobot.com/spring-controller-spring-mvc-controller/ Spring Controller annotation is a specialization of [@Component](/community/tutorials/spring-component) annotation. Spring Controller annotation is typically used in combination with annotated handler methods based on the RequestMapping annotation. Spring Controller Spring Controller annotation can be applied on classes only. It's used to mark a class as a web request handler. It's mostly used with [Spring […]

URL: https://www.progressiverobot.com/spring-mvc-tutorial/ In this Spring MVC Tutorial, we will learn how to develop Spring MVC web application using Spring Tool Suite. Spring MVC framework is widely used for [java web applications](/community/tutorials/java-web-application-tutorial-for-beginners "Java Web Application Tutorial for Beginners"). Spring MVC  Just like [Struts Framework](/community/tutorials/struts-2-tutorial "Struts2 Tutorial with Example Projects"), Spring MVC […]

URL: https://www.progressiverobot.com/spring-value-annotation/ Spring @Value annotation is used to assign default values to variables and method arguments. We can read spring environment variables as well as system variables using @Value annotation. Spring @Value annotation also supports SpEL. Let's look at some of the examples of using @Value annotation. Spring @Value – Default Value We can assign […]

URL: https://www.progressiverobot.com/spring-async-annotation/ Spring @Async annotation allows us to create asynchronous methods in spring. Let's explore @Async in this tutorial on spring framework. For a brief, when we annotate a method of a bean @Async annotation, Spring will execute it in a separate [thread](/community/tutorials/java-thread-example) and the caller of the method will not wait till the method […]

URL: https://www.progressiverobot.com/spring-data-jpa/ Spring Data JPA is part of Spring Data family. Spring Data makes it easier to create Spring driven applications that use new ways to access data, such as non-relational databases, map-reduction frameworks, cloud services, as well as well-advanced relational database support. This article will discuss about Spring Data JPA. We will also look […]

URL: https://www.progressiverobot.com/spring-orm-example-jpa-hibernate-transaction/ Welcome to the Spring ORM Example Tutorial. Today we will look into Spring ORM example using Hibernate JPA transaction management. I will show you a very simple example of Spring standalone application with following features. Dependency Injection (@Autowired annotation) JPA EntityManager (provided by Hibernate) Annotated transactional methods (@Transactional annotation) Spring ORM Example ![spring […]

URL: https://www.progressiverobot.com/spring-webflux-reactive-programming/ Spring WebFlux is the new module introduced in Spring 5. Spring WebFlux is the first step towards reactive programming model in spring framework. Spring Reactive Programming If you are new to reactive programming model, then I would highly suggest you to go through following articles to learn about reactive programming. Reactive Manifesto Reactive […]

URL: https://www.progressiverobot.com/spring-autowired-annotation/ Spring @Autowired annotation is used for automatic dependency injection. Spring framework is built on [dependency injection](/community/tutorials/spring-dependency-injection "Spring Dependency Injection Example with Annotations and XML Configuration") and we inject the class dependencies through spring bean configuration file. Spring @Autowired Annotation  Usually we provide bean configuration details […]

URL: https://www.progressiverobot.com/spring-datasource-jndi-with-tomcat-example/ Welcome to the Spring DataSource JNDI Tomcat Example Tutorial. Earlier we saw how to implement database operations using [Spring JDBC](/community/tutorials/spring-jdbc-example "Spring JDBC and JdbcTemplate CRUD with DataSource Example Tutorial") integration. However most of the time enterprise applications are deployed in a servlet container such as Tomcat, JBoss etc. Spring DataSource We know that […]

URL: https://www.progressiverobot.com/spring-postconstruct-predestroy/ When we configure [Spring Beans](/community/tutorials/spring-ioc-bean-example-tutorial) using [dependency injection](/community/tutorials/spring-dependency-injection), sometimes we want to make sure everything is initialized properly before our bean starts serving the client requests. Similarly, when the context is destroyed, we may have to close some resources used by spring bean. Spring @PostConstruct When we annotate a method in Spring Bean […]