E38387e383bce382bfe382bde383bce382b9 Articles

How to Work with Multiple DataSources in Spring Boot - Read/Write Separation and AbstractRoutingDataSource

A guide to implementing multiple DataSources in Spring Boot, covering two patterns: a static multi-DataSource configuration and dynamic read/write separation using AbstractRoutingDataSource. It walks through how to route to the primary/replica triggered by @Transactional(readOnly=true), organized with copy-and-run code.

2026-07-02