SSM+mybatis單元測試

初學SSM+mybatis單元測試遇到的問題，dao注入后為null
  
  
  
          

   
   
   
           
 
            Dao層注入失敗，查看后，發現注解都寫的無誤，經朋友的指點， 
           
   
   
   
           
在測試類上加了一句“@RunWith(SpringJUnit4ClassRunner.class) 
   
   
   
           
@ContextConfiguration(locations={“classpath:spring/applicationContext-tx.xml”,“classpath:spring/applicationContext-service.xml”,“classpath:spring/applicationContext-dao.xml”})” 經測試，Dao可以注入，不再為null --------------------- 作者：旅途上的背包客 來源：CSDN 原文：https://blog.csdn.net/u012799877/article/details/83056657?utm_source=copy 版權聲明：本文為博主原創文章，轉載請附上博文鏈接！
   
   
   
           
 
  
  
  
          

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"classpath:spring/applicationContext-tx.xml","classpath:spring/applicationContext-service.xml","classpath:spring/applicationContext-dao.xml"})
public class TaskInfoTest {
    @Autowired
 TaskService taskService;
    @Test
 public void test(){
        TaskInfo taskInfo = new TaskInfo();
        taskInfo.setTid(2);
        taskInfo.setTname("taskname");
        taskInfo.setStatus("成功");
        taskInfo.setBtime("2018-10-12");
        taskInfo.setEtime("2018-10-15");
        taskService.add(taskInfo);
    }
}