LuTiao Programming

Sep 2, 2026 · Backend Development

Spring Boot Multi-Tenancy: Why Data Source Routing Is the Easy Part

This article walks through a production-ready Spring Boot multi-tenancy implementation using database-per-tenant isolation, JWT-based tenant identification via Spring Security, AbstractRoutingDataSource for dynamic routing, and ThreadLocal context management, while exposing critical pitfalls in transaction timing, async task propagation, and dynamic tenant registration.