A DataSource is a factory for connections to any physical data source. An alternative to the DriverManager facility. It uses a URL along with some credentials to establish a database connection.

An object that implements the javax.sql.DataSource interface will typically be registered with JNDI service and can be discovered using it’s JNDI name.

A datasource may be used to obtain:

• standard Connection object
• connection which can be used in connection pooling
• connection which can be used in distributed transactions and connection pooling

Subpages

• Java - Connection Pooling Frameworks
• Java - DataSource Configuration
• Java - DataSource configuring for Tests
• Java - Spring - Multiple DataSources

Resources

• https://howtodoinjava.com/spring-boot2/datasource-configuration/