我试着做到以下几点：；
但是使用org.testcontainers.containers.mysqlr2dbcdatabasecontainer
有人能告诉我如何做到这一点吗，因为mysqlr2dbcatabasecontainer似乎没有以下方法：
：getjdbcurl
：：获取密码
：：getusername

@Testcontainers
@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
public class ApplicationIT {
  @Container
  public static PostgreSQLContainer postgreSQLContainer = new PostgreSQLContainer()
    .withPassword("inmemory")
    .withUsername("inmemory");
  @DynamicPropertySource
  static void postgresqlProperties(DynamicPropertyRegistry registry) {
    registry.add("spring.datasource.url", postgreSQLContainer::getJdbcUrl);
    registry.add("spring.datasource.password", postgreSQLContainer::getPassword);
    registry.add("spring.datasource.username", postgreSQLContainer::getUsername);
  }
  @Test
  public void contextLoads() {
  }
}