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Connecting to MariaDB

MariaDB is a popular fork of the relational database MySQL. You should install MariaDB separately before you can connect to it from your Vaadin application (you can also install MariaDB as a Docker container).

For an existing Vaadin project, you can connect to MariaDB by following the steps below:

  1. Add the mariadb-java-client dependency to the pom.xml file.

    <dependency>
    <groupId>org.mariadb.jdbc</groupId>
    <artifactId>mariadb-java-client</artifactId>
    <version>3.0.5</version>
</dependency>

  2. Add MariaDB configuration properties to the src/main/resources/application.properties file. You will have to replace HOST, PORT, DB_NAME, USERNAME, PASSWORD with corresponding parameters from your MariaDB instance.

    # MariaDB Configuration
spring.jpa.hibernate.ddl-auto=update
spring.datasource.url=jdbc:mariadb://HOST:PORT/DB_NAME
spring.datasource.username=USERNAME
spring.datasource.password=PASSWORD
spring.datasource.driver-class-name=org.mariadb.jdbc.Driver
Caution
Avoid storing sensitive information in the project’s properties file.

It is bad practice to store database URI, username, and passwords in the application.properties file. You should consider externalizing these properties.

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