Learn to configure and use different DataSource in different environments (test, development, production etc.) using the Spring profile specific properties files, as well as Java configuration in a Spring boot application. 1. Introduction A production grade application is deployed and tested in different environments before finally released to the end-user. In these environments, application must …
Test code that looks up a JNDI DataSource without an application server: register a small in-memory JNDI provider or Simple-JNDI, bind an H2 DataSource under the production name, bootstrap Hibernate 7 with it and run CRUD in JUnit 6. Or skip JNDI and pass the DataSource object.
Configure a DataSource in Spring Boot 4 with spring.datasource.url, username and password, and Spring Boot creates a HikariCP pool. Tested examples for pool tuning, DataSourceBuilder, a second DataSource, schema.sql and data.sql, and tests with H2 and Testcontainers.
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