Java 驼峰组件看不到数据源

这里是我的JavaConfigSpring3.2.4，camel2.13.4，它创建camelContext和数据源

我有junit4测试类

    @RunWith(CamelSpringJUnit4ClassRunner.class)
    @ContextConfiguration(classes = BeansConfig.class,loader = CamelSpringDelegatingTestContextLoader.class)
    public class CamelTestSpring {
      @Autowired
      private CamelContext camelContext;
      @Autowired
      private DataSource dataSource;


      @Before
      public void setUpContext() throws Exception {
        camelContext.getProperties().put(Exchange.LOG_DEBUG_BODY_MAX_CHARS, "1500");
        camelContext.addRoutes(routeBuilder());
        producerTemplate = camelContext.createProducerTemplate();
        Endpoint endpoint = camelContext.getEndpoint("direct:inSql");
        producerTemplate.setDefaultEndpoint(endpoint);
        camelContext.start();
       }
       @After
       public void cleanUpContext() throws Exception {
         camelContext.stop();
       }

    public RouteBuilder routeBuilder() throws Exception {
     return new RouteBuilder() {
      @Override
      public void configure() throws Exception {
        from("direct:inSql").to("sql:select * from dual");
      }
     };
    }

    @Test
    public void testDatasourse() {
    producerTemplate.sendBody("test");
  }
}

我的问题是，尽管数据源存在并正确注入，但当我运行route时，camelContext看不到数据源。我尝试了从direct:inSql.tosql:select*from-dual？dataSource=dataSource路由；但这并没有帮助

Caused by: org.apache.camel.NoSuchBeanException: No bean could be found in the registry for: dataSource of type: javax.sql.DataSource

我的错误是什么？如何解决

Caused by: org.apache.camel.NoSuchBeanException: No bean could be found in the registry for: dataSource of type: javax.sql.DataSource