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我將ehcache添加到我的項目中，並且我的DAO的單元測試類運行良好，如果我評論ehcache註釋我的DAO和失敗，如果我取消註釋他們，說它不能自動裝載DAO豆。將ehcache添加到DAO類後，Junit測試失敗，無法在測試類中實例化DAO
這是錯誤我得到：
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.nicobrest.kamehouse.dao.DragonBallUserDaoJpaTest': Injection of autowired dependencies failed;
nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.nicobrest.kamehouse.dao.DragonBallUserDaoJpa com.nicobrest.kamehouse.dao.DragonBallUserDaoJpaTest.dragonBallUserDaoJpa;
nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.nicobrest.kamehouse.dao.DragonBallUserDaoJpa] found for dependency:
expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true), @org.springframework.beans.factory.annotation.Qualifier(value=dragonBallUserDaoJpa)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214)
at
...
我也嘗試過的，而不是在單元測試中採用自動裝配的DAO豆，自動裝配應用程序上下文和名稱獲取豆，當我做到這一點，我得到一個異常，它不能將$ proxy32投射到我的DAO類。
java.lang.ClassCastException: com.sun.proxy.$Proxy32 cannot be cast to com.nicobrest.kamehouse.dao.DragonBallUserDaoJpa
at com.nicobrest.kamehouse.dao.DragonBallUserDaoJpaTest.setUp(DragonBallUserDaoJpaTest.java:71)
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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
at
...
這些都是相關的文件：
的applicationContext.xml
...
<cache:annotation-driven cache-manager="cacheManager"/>
<import resource="applicationContext-persistence.xml" />
<!-- Ehcache configuration -->
<bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheCacheManager">
<property name="cacheManager" ref="ehcache" />
</bean>
<bean id="ehcache" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
<property name="configLocation" value="classpath:ehcache.xml" />
<property name="shared" value="true" />
</bean>
<!-- Example endpoints beans -->
<bean id="dragonBallUserService" class="com.nicobrest.kamehouse.service.DragonBallUserService">
<property name="dragonBallUserDao" ref="dragonBallUserDaoJpa" />
</bean>
<bean id="dragonBallUserDaoJpa" class="com.nicobrest.kamehouse.dao.DragonBallUserDaoJpa">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
...
DragonBallUserDaoJpaTest.java
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "classpath:applicationContext.xml" })
public class DragonBallUserDaoJpaTest {
private static final Logger LOGGER
LoggerFactory.getLogger(DragonBallUserDaoJpaTest.class);
@Autowired
@Qualifier("dragonBallUserDaoJpa")
private DragonBallUserDaoJpa dragonBallUserDaoJpa;
...
@Test
public void createDragonBallUserTest() {
DragonBallUser dragonBallUser = new DragonBallUser(null, "vegeta", "[email protected]", 49, 40,
1000);
try {
assertEquals(0, dragonBallUserDaoJpa.getAllDragonBallUsers().size());
dragonBallUserDaoJpa.createDragonBallUser(dragonBallUser);
assertEquals(1, dragonBallUserDaoJpa.getAllDragonBallUsers().size());
dragonBallUserDaoJpa
.deleteDragonBallUser(dragonBallUserDaoJpa.getDragonBallUser("vegeta").getId());
} catch (KameHouseBadRequestException | KameHouseNotFoundException e) {
e.printStackTrace();
fail("Caught unexpected exception.");
}
}
...
DragonBallUserDaoJpa.java
public class DragonBallUserDaoJpa implements DragonBallUserDao {
@Autowired
private EntityManagerFactory entityManagerFactory;
...
@CacheEvict(value = { "getAllDragonBallUsersCache" }, allEntries = true)
public Long createDragonBallUser(DragonBallUser dragonBallUser) {
EntityManager em = getEntityManager();
try {
em.getTransaction().begin();
em.persist(dragonBallUser);
em.getTransaction().commit();
} catch (PersistenceException pe) {
...
} finally {
em.close();
}
return dragonBallUser.getId();
}
...
我不知道還有什麼嘗試，有什麼想法？我使用Spring 4.2.4.RELEASE，Hibernate 5.1.0.Final，Hibernate JPA 1.0.0.Final，ehcache 2.9.0，JUnit 4.12。
這絕對是與ehcache相關的東西，因爲註釋註釋使測試類中的DAO自動裝載成爲可能，單元測試通過了，但我嘗試了幾個小時並且無法弄清楚。
謝謝！
如果變量名稱相同，或者類路徑中只有一個可用的bean，則可以開始移除不需要的限定符。嘗試在bean的聲明中使用名稱。限定符使用名稱而不是id –
我一開始沒有建議它，但我會建議使用class config而不是xml config。在運行前查找錯誤更容易 –
感謝您的答案！我試圖刪除限定符，但它沒有奏效。自動裝配到接口而不是類解決了問題。我實際上計劃將所有內容都移動到類配置中，我想要練習class和xml配置。 – nbrest