谷歌應用程序引擎數據存儲測試沒有api環境註冊此線程的異常

Question

我已經爲谷歌應用程序引擎編寫驗收測試。但每當我運行一個測試我得到以下異常

java.lang.NullPointerException: No API environment is registered for this thread. 
at com.google.appengine.api.datastore.DatastoreApiHelper.getCurrentAppId(DatastoreApiHelper.java:180) 
at com.google.appengine.api.datastore.DatastoreApiHelper.getCurrentAppIdNamespace(DatastoreApiHelper.java:196) 
at com.google.appengine.api.datastore.Query.<init>(Query.java:208) 
at com.google.appengine.api.datastore.Query.<init>(Query.java:139) 
at com.google.appengine.datanucleus.query.DatastoreQuery.compile(DatastoreQuery.java:236) 
at com.google.appengine.datanucleus.query.JDOQLQuery.performExecute(JDOQLQuery.java:158) 
at org.datanucleus.store.query.Query.executeQuery(Query.java:1789) 
at org.datanucleus.store.query.Query.executeWithArray(Query.java:1666) 
at org.datanucleus.store.query.Query.execute(Query.java:1639) 
at org.datanucleus.api.jdo.JDOQuery.execute(JDOQuery.java:221) 
at com.teamsuccesso.campaignmonitor.dao.impl.SimpleQueryDaoImpl.getObjectListUsingQuery(SimpleQueryDaoImpl.java:189) 
at com.teamsuccesso.campaignmonitor.service.user.impl.UserServiceImpl.saveUser(UserServiceImpl.java:18) 
at com.teamsuccesso.campaignmonitor.controller.user.UserController.createAdmin(UserController.java:62) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
at java.lang.reflect.Method.invoke(Unknown Source) 
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:349) 
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:300) 
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:133) 
... 43 more 

以下是我的代碼

@RunWith(SpringJUnit4ClassRunner.class) 
@WebAppConfiguration 
@ContextHierarchy({ 
     @ContextConfiguration(locations = { "file:src/main/webapp/WEB-INF/spring/dispatcher-servlet.xml" }) }) 
public class AT_AdGroupController { 
    @SuppressWarnings("unused") 
    private MockHttpSession session = new MockHttpSession(); 
    private final LocalServiceTestHelper helper = new LocalServiceTestHelper(
      new LocalDatastoreServiceTestConfig().setDefaultHighRepJobPolicyUnappliedJobPercentage(1).setStoreDelayMs(0)); 

    @Autowired 
    private WebApplicationContext webContext; 
    private MockMvc mockMVC; 

    @SuppressWarnings("unused") 
    private static ObjectMapper mapper; 

    @BeforeClass 
    public static void startUp() { 
     mapper = new ObjectMapper(); 
    } 

    @Before 
    public void testSetup() { 
     MockitoAnnotations.initMocks(this); 
     helper.setUp(); 
     this.mockMVC = MockMvcBuilders.webAppContextSetup(webContext).build(); 
    } 
    @Test 
    public void testSaveAd() throws Exception { 
     CommonAdBean ad = new CommonAdBean(); 
     ad.setAdType("FaceBook"); 
     ad.setAdName("AdName"); 
     ad.setDateOfReport("Mon Oct 17 2016 17:26:36 GMT+0530 (India Standard Time)"); 
     ad.setReportingStarts("1991-01-01"); 
     ad.setTreportingEnds("1991-01-22"); 
     ad.setStarts("1991-10-11"); 
     ad.setEnds("01-01-1991"); 
     String inputJSon = new GsonBuilder().serializeNulls().create().toJson(ad); 
     System.out.println("InPut:" + inputJSon); 
     MvcResult returnValue = this.mockMVC 
       .perform(org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post("/adgroups/1") 
         .contentType(MediaType.APPLICATION_JSON).content(inputJSon.getBytes())) 
       .andExpect(org.springframework.test.web.servlet.result.MockMvcResultMatchers.status().isOk()) 
       .andReturn(); 
     System.out.println("OutPut:" + returnValue.getResponse().getContentAsString()); 
     returnValue = this.mockMVC 
       .perform(org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post("/adgroups/1") 
         .contentType(MediaType.APPLICATION_JSON).content(inputJSon.getBytes())) 
       .andExpect(org.springframework.test.web.servlet.result.MockMvcResultMatchers.status().isOk()) 
       .andReturn(); 
     System.out.println("OutPut:" + returnValue.getResponse().getContentAsString()); 
     AdBean adbean = new GsonBuilder().serializeNulls().create().fromJson(returnValue.getResponse().getContentAsString(), AdBean.class); 
     assertNotNull(adbean.getId()); 
    } 
} 

對於依賴我使用Maven和我已經添加了所需的所有的依賴關係。以下是我加

• 的AppEngine-API-1.0-SDK
• AppEngine上，測試
• 的AppEngine-API存根
• 的AppEngine-API實驗室
• 的AppEngine工具，SDK的依賴性

我的AppEngine的版本是44年9月1日，我還使用Spring MVC的

Answer 1

我覺得你的問題是與此相關的問題：
How do I register API environment for Datastore in GAE Flexible Environment?

您需要使用最新的庫來訪問數據存儲在一個靈活的環境。

你會發現這裏的項目home page和github repository。