Why Adopt Spring Boot Spring serves as a lightweight alternative to legacy J2EE/EJB architectures, enabling developers to implement enterprise-grade functionality using Plain Old Java Objects (POJOs) via Dependency Injection and Aspect-Oriented Programming, without the overhead of heavyweight EJBs....
Understanding the Framework Hierarchy To grasp the underlying principles of the Spring ecosystem, one must analyze the distinct positioning and problem-solving capabilities of each component. These three technologies exist in a progressive relationship: Spring serves as the foundational infrastructu...
In the Spring framework, there are two primary IoC (Inversion of Control) containers that operate under a parent-child hierarchy: the Spring Core IoC container and the Spring MVC IoC container. These containers manage different layers of an application and have distinct responsibilities. 1. The Spri...
Spring's event listener mechanism is useful for decoupling code. Consider a scenario where you need to synchronize data changes for different entities like Person or Order to an external service after database operations. A straightforward approach couples the synchornization logic directly with the...
Configuring a DataSource is a fundamental step in developing Spring-based applications that interact with relational databases. Spring offers several mechanisms to manage database connections, ranging from container-managed resources to embedded databases for development and third-party connection p...
Integrating Spring, Spring MVC, and MyBatis requires a layered configuration approach where the root application context manages bussiness logic and persistence, while the child web context handles HTTP routing and controller execution. This annotation-driven architecture eliminates legacy XML descr...
Spring AOP (Aspect-Oriented Programming) is a powerful feature that allows developers to modularize cross-cutting concerns. In this article, we'll dive into how Spring AOP annotations are loaded and how they become active through proxy creation. We'll examine the underlying mechanisms that make AOP...
Introduction to Spring Core Concepts Before diving into the Spring framework, it's essential to understand its fundamental building blocks. These include: Inversion of Control (IoC) and Dependency Injection (DI) Aspect-Oriented Programming (AOP) Bean lifecycle and initialization Transaction manageme...
Maven Dependencies <project xmlns="http://maven.apache.org/POM/4.0.0"> <modelVersion>4.0.0</modelVersion> <groupId>com.demo</groupId> <artifactId>tx-xml-demo</artifactId> <version>1.0.0</version> <properties> <spring.version>...
Setting Up a JNDI DataSource To use a cnotainer-managed database connection, define a bean that looks up the resource via JNDI. The following cnofiguration retrieves a MySQL data source bound to jdbc/mysql: package com.example.setup; import javax.naming.NamingException; import javax.sql.DataSource;...