Created
September 2, 2015 13:37
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How to have Hikari take precendence as DataSource connection pool in a Sprint Boot app
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| spring: | |
| profiles: h2 | |
| datasource: | |
| url: jdbc:h2:mem:mydb;DB_CLOSE_DELAY=-1;DATABASE_TO_UPPER=false | |
| driver-class-name: org.h2.Driver | |
| data-source-class-name: org.h2.jdbcx.JdbcDataSource | |
| username: sa | |
| password: sa |
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| import org.springframework.beans.factory.annotation.Autowired; | |
| import org.springframework.beans.factory.annotation.Value; | |
| import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties; | |
| import org.springframework.context.annotation.Bean; | |
| import org.springframework.context.annotation.Configuration; | |
| import com.codahale.metrics.MetricRegistry; | |
| import com.zaxxer.hikari.HikariDataSource; | |
| @Configuration | |
| public class DataSourceConfig { | |
| @Value("${spring.datasource.data-source-class-name}") | |
| private String dataSourceClassName; | |
| @Autowired | |
| private DataSourceProperties dataSourceProperties; | |
| @Autowired | |
| private MetricRegistry metricRegistry; | |
| @Bean | |
| public HikariDataSource dataSource() { | |
| final HikariDataSource ds = new HikariDataSource(); | |
| ds.setMaximumPoolSize(25); | |
| ds.setDataSourceClassName(dataSourceClassName); | |
| ds.addDataSourceProperty("url", dataSourceProperties.getUrl()); | |
| ds.addDataSourceProperty("user", dataSourceProperties.getUsername()); | |
| ds.addDataSourceProperty("password", dataSourceProperties.getPassword()); | |
| ds.setMetricRegistry(metricRegistry); | |
| return ds; | |
| } | |
| } |
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| <!-- Connection Pooling --> | |
| <dependency> | |
| <groupId>com.zaxxer</groupId> | |
| <artifactId>HikariCP</artifactId> | |
| <version>2.4.0</version> | |
| </dependency> |
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Spring Boot's
DataSourceBuilder(i.e.,org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder) does not instantiateHikariDataSourcewhen both Tomcat and Hikari are found on classpath.