Spring Full-Stack Practical Cases
Apr 18, 2026 · Backend Development
Mastering MethodReplacer in Spring Boot 3: From Basics to Advanced Overrides
This article explains the legacy MethodReplacer mechanism in Spring Boot 3, demonstrates a step‑by‑step example of replacing a service method with custom beans, shows how to register the override, test it via a controller, and discusses extensions and why @Aspect is now preferred.
AOPJavaMethodReplacer
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