我正在使用基于注释的spring配置并尝试测试基于JPA的DAO。配置完成后，当我运行测试时，会抛出以下错误。即使在Test类中创建了Bean配置，我仍然无法找到IPartnerDao的原因。
5173 [ERROR] org.springframework.test.context.TestContextManager - Caught exception while allowing TestExecutionListener [org.springframework.test.context.support.DependencyInjectionTestExecutionListener@3600e312] to prepare test instance [test.java.net.bornil.persistence.service.partner.PartnerDaoTest@148238f4]
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'test.java.net.bornil.persistence.service.partner.PartnerDaoTest': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private main.java.net.bornil.persistence.service.IPartnerDao test.java.net.bornil.persistence.service.partner.PartnerDaoTest.parDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [main.java.net.bornil.persistence.service.IPartnerDao] 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)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:288)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1120)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireBeanProperties(AbstractAutowireCapableBeanFactory.java:379)
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:110)
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:75)
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:313)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:211)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:288)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:284)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:88)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174)
at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:53)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:123)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:104)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164)
at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:110)
at org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:175)
at org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcessWhenForked(SurefireStarter.java:107)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:68)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private main.java.net.bornil.persistence.service.IPartnerDao test.java.net.bornil.persistence.service.partner.PartnerDaoTest.parDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [main.java.net.bornil.persistence.service.IPartnerDao] 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)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:514)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285)
... 32 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [main.java.net.bornil.persistence.service.IPartnerDao] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:967)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:837)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:749)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:486)
... 34 more
测试类
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(loader = AnnotationConfigContextLoader.class, classes = { JPAConfig.class })
public final class PartnerDaoTest {
@Configuration
static class ContextConfiguration {
@Bean
public IPartnerDao getParDao() {
return new PartnerDao();
}
}
@Autowired
private IPartnerDao parDao;
@Test
public void testFindPartnerWithAddress() throws Exception {
Partner partner = parDao.findPartnerWithAddress(1L);
assertNotNull(partner);
}
}
DAO课程
@Repository
@Transactional(readOnly = true)
public class PartnerDao implements IPartnerDao {
private static Logger logger = Logger.getLogger(PartnerDao.class.getName());
@PersistenceContext
private EntityManager em;
public PartnerDao() {
}
/* (non-Javadoc)
* @see main.java.net.bornil.persistence.service.IPartnerDao#find(java.lang.Long)
*/
@Override
public Partner findPartnerWithAddress(Long id) {
if (logger.isDebugEnabled()) {
logger.debug("Partner ID : " + id);
}
Query query = em.createQuery("select p from Partner p join fetch p.addressSet where p.id = :id");
query.setParameter("id", id);
return (Partner) query.getSingleResult();
}
}
合作伙伴界面
@Service
public interface IPartnerDao {
public Partner findPartnerWithAddress(Long id);
}
JPAConfig class
@Configuration
// @EnableLoadTimeWeaving
@EnableTransactionManagement
@PropertySource({ "classpath:jdbc.properties" })
public class JPAConfig {
@Autowired
Environment env;
@Bean
DataSource getJdbcDataSource() {
String jdbcUrl = env.getProperty("jdbc.url");
String username = env.getProperty("jdbc.username");
String password = env.getProperty("jdbc.password");
return new DriverManagerDataSource(jdbcUrl, username, password);
}
@Bean
public PlatformTransactionManager getTransactionManager() {
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(getEntityManagerFactoryBean().getObject());
return transactionManager;
}
@Bean
public LocalContainerEntityManagerFactoryBean getEntityManagerFactoryBean() {
LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
factory.setDataSource(getJdbcDataSource());
factory.setPackagesToScan(new String[] { "main.java.net.bornil.persistence.entity" });
HibernateJpaVendorAdapter hjva = new HibernateJpaVendorAdapter();
hjva.setGenerateDdl(false);
hjva.setShowSql(true);
hjva.setDatabasePlatform("org.hibernate.dialect.MySQLDialect");
factory.setJpaVendorAdapter(hjva);
return factory;
}
}
答案 0 :(得分：1)
确保在JPAConfig.class上设置了组件扫描设置。
@ComponentScan("package.containing.PartnerDao")
public class JPAConfig{
}
还尝试将测试添加到ContextLoader
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(loader = AnnotationConfigContextLoader.class,
classes = { JPAConfig.class, PartnerDaoTest.class })
public final class PartnerDaoTest {
/** tests**/
}