Has the same URL been used to configure the Spring DataSource source?

In Spring, to configure the data source (DataSource), the database connection URL is usually specified in configuration files, such as application.properties or application.yml:

spring.datasource.url=jdbc:mysql://localhost:3306/mydb
spring.datasource.username=root
spring.datasource.password=pass

Using the same URL for configuring the data source depends on the context:

• If the application uses a single data source, then the URL will be the same for all components that use it.
• If the application works with multiple databases, then each DataSource will have its own URL.

Thus, if the question is about reusing the URL, then yes, usually the same URL is used to configure a single DataSource so that all application components connect to the same database. If connecting to different databases, then the URL will be different.

Example of configuring a single DataSource with one URL:

@Configuration
public class DataSourceConfig {

    @Bean
    public DataSource dataSource() {
        DriverManagerDataSource ds = new DriverManagerDataSource();
        ds.setUrl("jdbc:mysql://localhost:3306/mydb");
        ds.setUsername("root");
        ds.setPassword("pass");
        return ds;
    }
}