10 Classic Spring Boot Design Patterns to Refactor Your Business Code
This article walks through ten classic design patterns—Factory, Proxy, Template Method, Strategy, Observer, Chain of Responsibility, Singleton, Builder, Adapter, and Decorator—showing how they are realized in Spring Boot 3.x with concrete e‑commerce, payment, and user‑system examples, and explains their benefits, trade‑offs, and best‑practice usage.
