How to Configure HikariCP in Spring Boot using application.properties

Spring Boot provides an easy way to configure HikariCP, a popular and high-performance JDBC connection pool, using application.properties. Here’s how you can do it:



Step 1: Add the HikariCP dependency to your project.

If you’re using Maven, add the following to your pom.xml file:

<dependency>
    <groupId>com.zaxxer</groupId>
    <artifactId>HikariCP</artifactId>
    <version>3.4.5</version>
</dependency>


Step 2: Configure the datasource in the application.properties file.

Add the following properties to your application.properties file:

# Database configuration
spring.datasource.url=jdbc:mysql://localhost:3306/database-name
spring.datasource.username=database-username
spring.datasource.password=database-password
spring.datasource.driver-class-name=com.mysql.jdbc.Driver

# HikariCP configuration
spring.datasource.hikari.maximum-pool-size=5
spring.datasource.hikari.minimum-idle=2

Note that in this example, we are using a MySQL database. You will need to adjust the URL, username, password, and driver-class-name properties to match your own database configuration.



Step 3: Test your configuration.

You can now run your application and test the configuration by accessing the database through a DAO or repository class. If everything is configured correctly, you should be able to connect to your database and retrieve data.

And that’s it! You have now successfully configured HikariCP in your Spring Boot application using application.properties.

I hope this helps!



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