Dynamic Refresh of Spring Boot Configuration from Database Without Restart

In many projects there is a need to modify Spring Boot configuration at runtime without restarting the application.

This article explains how to load configuration from a database and provide a one‑click refresh mechanism.

The approach consists of several key steps:

Obtain the application context via ConfigurableApplicationContext .

Get the current Environment object.

Fetch the latest configuration from the database (or other source).

Replace the current environment properties using MutablePropertySources and a new MapPropertySource .

Refresh specific beans by invoking ContextRefresher.refresh() , optionally asynchronously.

The article provides Maven dependencies for Spring Cloud 2021.0.1, shows how to add @RefreshScope to beans, and gives concrete code examples for acquiring the context, environment, loading configuration via gRPC, updating the property source, and triggering an asynchronous refresh.