Spring 5.0 By Example

Configuring the database connection

Before we create our repositories, we will configure the MongoDB connection. The repository layer abstracts the driver implementation, but is necessary to configure the driver correctly.

On the resources directory, we will change the application.yaml file, previously configured for the Spring Data JPA. The Spring Framework supports the configuration through the YAML file. This kind of file is more readable for humans and has a kind of hierarchy. These features are the reason to choose this extension.

The application.yaml file should be like the following example:

spring:  data:    mongodb:      database: cms      host: localhost      port: 27017

The application.yaml file for MongoDB can be found on GitHub (https://github.com/PacktPublishing/Spring-5.0-By-Example/blob/master/Chapter03/cms-mongo-non-reactive/src/main/resources/application.yaml ...