Question

我的多模块项目结构如下：

project-example (parent)
-- project-example-domain: contains DAOs and Services
-- project-example-service: contains Controllers

服务模块将域作为依赖关系，因此服务知道域，但不是相反。

因此，为了测试ClientDAO的完整性（在这种情况下），我有这个测试：

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = DAOConfiguration.class)
public class ClientDAOTests {

    @Autowired
    private ClientDAO dao;

    @Test
    public void testFindClient() {
          ...
    }

}

当我运行它时，我得到了这个例外：

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [javax.sql.DataSource] 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:1301)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1047)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:942)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533)
    ... 51 more

最后是我的DAOConfiguration

@Configuration
@PropertySource("classpath:persistence.properties")
@EnableJpaRepositories(basePackages = {"com.example.movies.domain.feature"})
@EnableTransactionManagement
public class DAOConfiguration {

    @Autowired
    private Environment env;

    @Autowired
    private DataSource dataSource;

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory(EntityManagerFactoryBuilder builder) {
        LocalContainerEntityManagerFactoryBean entityManager = new LocalContainerEntityManagerFactoryBean();
        entityManager.setDataSource(this.dataSource);
        entityManager.setPackagesToScan(new String[] {"com.example.movies.domain"});
        JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
        entityManager.setJpaVendorAdapter(vendorAdapter);
        return entityManager;
    }

    @Bean
    public PlatformTransactionManager transactionManager(EntityManagerFactory emf) {
        JpaTransactionManager transactionManager = new JpaTransactionManager();
        transactionManager.setEntityManagerFactory(emf);
        return transactionManager;
    }

    @Bean
    public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
        return new PersistenceExceptionTranslationPostProcessor();
    }

}

当我从服务运行服务器时，它工作正常，Spring生成DataSource bean。但是当我在域中运行我的测试时，我得到之前提到的异常。

所以我认为我的问题是我向@SpringApplicationConfiguration传递了错误的参数。我不明白我必须通过什么...我应该通过@SpringBootApplication注释将Application类传递给它吗？在这种情况下，这是在服务模块内部，因此域名不知道此类。你能解释SpringApplicationConfiguration应该采取什么作为使我的测试失败的参数？提前谢谢！

修改

这是我的ApplicationRunner类，位于服务层：

@SpringBootApplication
@Import({ServicesConfiguration.class, CustomDataBindingConfiguration.class, CustomMappingConfiguration.class})
@PropertySource(value = {"application.properties"})
public class ApplicationRunner {

    public static void main(String[] args) {
        SpringApplication.run(ApplicationRunner.class, args);
    }

}

Answer 1

我解决了同样的问题。

问题来自@SpringApplicationConfiguration(classes = DAOConfiguration.class)。您必须引用一个用@EnableAutoConfiguration注释的类，以便Spring Boot自动注入数据源。（此注释通常继承自@SpringBootApplication）

您有几种选择：

使用@SpringBootApplication

@SpringApplicationConfiguration

将@EnableAutoConfiguration添加到DAOConfiguration类
...（您理解这一点）

使用@SpringApplicationConfiguration在多模块项目中运行域测试会抛出NoSuchBeanDefinitionException？

修改

1 个答案: