报错信息：
org.springframework.test.context.TestContextManager prepareTestInstance
严重: Caught exception while allowing TestExecutionListener [org.springframework.test.context.support.DependencyInjectionTestExecutionListener@737996a0] to prepare test instance [com.deng.shop.dao.AreaDaoTest@20bd8be5]
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘com.deng.shop.dao.AreaDaoTest’: Unsatisfied dependency expressed through field ‘areaDao’; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type ‘com.deng.shop.dao.AreaDao’ available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
spring-dao.xml文件有<context:component-scan basepackage=“com.deng.shop.dao”/>，
AreaDao类在package com.deng.shop.dao下，AreaDao接口添加了@Repository(“areaDao”)注解，
AreaDaoTest类代码：
public class AreaDaoTest extends BaseTest {

@Autowired
 private AreaDao areaDao;

@Test
public void testQueryArea(){
    List<Area> areaList = areaDao.queryArea();
    Assert.assertEquals(2,areaList.size());
}

}
为什么会注入不了AreaDao的bean呢。