如何在spring dataset DatabaseConfig中设置默认属性

@Configuration
public class MyDatabaseConfig extends DatabaseConfig {
    // 自定义配置内容
}

@Configuration
public class MyDatabaseConfig extends DatabaseConfig {
    @Bean
    public DataSource dataSource() {
        // 设置默认属性
        BasicDataSource dataSource = new BasicDataSource();
        dataSource.setDriverClassName("com.mysql.jdbc.Driver");
        dataSource.setUrl("jdbc:mysql://localhost:3306/mydatabase");
        dataSource.setUsername("username");
        dataSource.setPassword("password");
        return dataSource;
    }
}

@Configuration
@EnableJpaRepositories(basePackages = "com.example.repository")
public class MyDatabaseConfig extends DatabaseConfig {
    // 自定义配置内容
}

@SpringBootApplication
@Import(MyDatabaseConfig.class)
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}