【Spring】file: 外部ファイルの読み込み

@Configuration
@PropertySource({ "file:C:/test/jdbc.properties" })
public class DB2JdbcConfig {

    @Autowired
    private Environment environment;

    @Bean
    public DataSource datasource() {
        final DriverManagerDataSource dataSource = new DriverManagerDataSource();
        dataSource.setDriverClassName(environment.getProperty("jdbc.driverClassName"));
        dataSource.setUrl(environment.getProperty("jdbc.url"));
        dataSource.setUsername(environment.getProperty("jdbc.username"));
        dataSource.setPassword(environment.getProperty("jdbc.password"));
        return dataSource;
    }

}