Java Spring@Resource注入抽象类getter返回null

我有一个pb和一个我运行的测试用例。我通过接口设置了一个对象。在接口和类之间是一个抽象类，该对象的getter在其中。当我打电话给目标的获得者。它返回null……？我想这是代理obj的问题，但我不知道代理obj是如何工作的

   public interface RequestHandler{
        public void setRequest(ImporterRequest request);}



   public abstract class AbstractRequestHandler implements RequestHandler{

     private ImporterRequest request;

     public ImporterRequest getRequest() {
    return request;
  }

     @Override
  public void setRequest(ImporterRequest request) {
      this.request = request;
  }




  @Component("WBRequestHandler")
  @Scope(value= "prototype", proxyMode = ScopedProxyMode.TARGET_CLASS)
  public class WBRequestHandler extends AbstractRequestHandler implements  RequestHandler{ 
       // here only implemented methods from the AbstrcCllass for read/write csv 

        @Override
    public List<Object> getData(ExportRequest request1) {...}        
        @Override
    public CellProcessor[] createExportCellProcessor(ExportRequest request1) {...}
        @Override
    protected void parseLines(CsvPreference preferences, StringReader reader,
        LngDTO LngDTO, String username) throws IOException {....}
        @Override
    protected CellProcessor[] createProcessors(ImporterRequest request1) {.....}

    }





  @RunWith(SpringJUnit4ClassRunner.class)
  @ContextConfiguration(locations = { "/META-INF/spring-config.xml" })
  public class Test{

    @Resource
private RequestHandler WBRequestHandler;

    @Resource
private ImporterFactory importerFactoryImpl;

    @Test
@Transactional
public void CSVReadTest() {
         //the importerRequest obj is a simple one - non-annotated  
         ImporterRequest ir = new ImporterRequest();    

         ir.setImportTyp(RequestTyp.Artikel); 

         //this instantiation works, i made a test case for a export file with the same line  
         WBRequestHandler = importerFactoryImpl.getHandler(ir);

         WBRequestHandler.setRequest(ir);

         //in the test the req is null, 
         ImporterRequest req = ((AbstractRequestHandler) WBRequestHandler).getRequest(); 


       }

    }

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可能尝试将WBRequestHandler重命名为小写，而不是强制转换itthanks…它不起作用公共类WBRequestHandler扩展AbstractRequestHandler实现RequestHandler{一些其他代码}。你能给我看一些其他的代码吗？在具体的类中，我只有4个方法来实现抽象类中声明的那些方法……我认为它们不会影响这个空问题。