springboots HikariDataSource

HikariCP is a high-performance JDBC connection pool that is widely used in Java applications, including Spring Boot applications. HikariCP is known for its fast startup times, low memory footprint, and high throughput. It is the default connection pool used by Spring Boot's auto-configuration for JDBC.

To use HikariCP in a Spring Boot application, you need to add the HikariCP dependency to your project's build file. For example, if you are using Maven, you can add the following dependency to your pom.xml file:

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

Once you have added the HikariCP dependency, you can configure a HikariDataSource bean in your Spring Boot application's configuration class. Here's an example:

@Configuration
public class DataSourceConfig {

    @Value("${spring.datasource.url}")
    private String url;

    @Value("${spring.datasource.username}")
    private String username;

    @Value("${spring.datasource.password}")
    private String password;

    @Bean
    public DataSource dataSource() {
        HikariConfig config = new HikariConfig();
        config.setJdbcUrl(url);
        config.setUsername(username);
        config.setPassword(password);
        return new HikariDataSource(config);
    }

}

In this example, we are using Spring Boot's auto-configuration to load the database configuration from the application.properties file. We are then creating a HikariConfig object and setting the JDBC URL, username, and password properties. Finally, we are creating a new HikariDataSource bean using the HikariConfig object.

With this configuration in place, you can inject the DataSource bean into your Spring Boot application's components and use it to interact with the database.