This article walks through defining a simple Calculator interface, provides two implementation styles, and demonstrates both reflection‑based and annotation‑based hot‑deployment of uploaded JARs in a Spring application, including bean registration, removal, and a test loop.
This article explains how Spring Framework 7 introduces the BeanRegistrar interface to replace the cumbersome ImportBeanDefinitionRegistrar, demonstrating the new API with concise code examples, comparing old and new approaches, and providing a complete practical example for dynamically registering beans based on runtime configuration.
This guide explains multiple ways to dynamically register beans in Spring Boot—including @ConditionalOnProperty, ImportBeanDefinitionRegistrar, the new Spring 7 BeanRegistrar API, and runtime registration via @PostConstruct—while outlining configuration details, lifecycle considerations, and best‑practice recommendations for flexible, condition‑driven bean management.
This article walks through building a simple Calculator interface, creating a dual‑mode implementation, and then dynamically loading, registering, and unloading user‑supplied JAR files at runtime using reflection or Spring annotation processing, complete with utility methods and a test harness.
This article demonstrates how to dynamically register Spring Boot 3 beans using BeanDefinitionRegistryPostProcessor and configuration properties, covering property setup, bean class definition, post‑processor implementation, registration in a configuration class, and a CommandLineRunner test that prints the created beans.
This guide demonstrates how to enable hot deployment of user‑provided Java interface implementations in a Spring Boot application, covering both annotation‑based and reflection‑based approaches, jar uploading, dynamic bean registration, class loading, and cleanup, with complete code examples.
This article demonstrates how to define a simple Java interface, provide two implementation styles (Spring‑annotation and pure‑reflection), package the implementation as a JAR, and dynamically load, register, replace, or remove the implementation at runtime using URLClassLoader and Spring's bean factory.
This article demonstrates how to design a simple Calculator interface, provide two implementation strategies (annotation‑based Spring beans and reflection‑based classes), and dynamically load, register, and unload user‑supplied JAR files at runtime through hot‑deployment mechanisms in a Java backend system.
This article demonstrates how to design a simple Calculator interface, provide two implementation strategies (Spring annotation and reflection), and achieve hot deployment by uploading JAR files, dynamically loading classes, registering or removing beans in the Spring container, and testing the runtime behavior.
