No bean named 'injectionServiceImpl' is defined

public class TestInjection extends UnitTestBase{
  public TestInjection(){
      super("classpath*:spring-annotation.xml");
  }
  @Test
  public void testAutoWired(){
      InjectionService service =super.getBean("injectionServiceImpl");
      
      service.save("autowired");
  }
}

spring-annotation.xml：

<context:component-scan base-package="com.sbk.annotation"></context:component-scan>   
错误：org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'injectionServiceImpl' is defined