DatabaseConfiguration.java 文件源码

@Bean(destroyMethod = "close")
@ConditionalOnExpression("#{!environment.acceptsProfiles('cloud') && !environment.acceptsProfiles('heroku')}")
public DataSource dataSource(DataSourceProperties dataSourceProperties, ApplicationProperties applicationProperties) {
  log.debug("Configuring Datasource");
  if (dataSourceProperties.getUrl() == null) {
    log.error("Your database connection pool configuration is incorrect! The application cannot start. " +
      "Please check your Spring profile, current profiles are: {}", Arrays.toString(environment.getActiveProfiles()));
    throw new ApplicationContextException("Database connection pool is not configured correctly");
  }
  HikariConfig config = new HikariConfig();
  config.setDataSourceClassName(dataSourceProperties.getDriverClassName());
  config.addDataSourceProperty("url", dataSourceProperties.getUrl());
  config.addDataSourceProperty("user", dataSourceProperties.getUsername() != null ? dataSourceProperties.getUsername() : "");
  config.addDataSourceProperty("password", dataSourceProperties.getPassword() != null ? dataSourceProperties.getPassword() : "");
  if (metricRegistry != null) {
    config.setMetricRegistry(metricRegistry);
  }
  return new HikariDataSource(config);
}