我有两个@Configuration
类。我需要一个从一个配置类到另一个配置类的 bean。我已将配置 1 自动连接到 2。一切正常。执行单元测试时,出现以下异常。
setUpContext(com.trafigura.titan.framework.services.messaging.loader.SpringLoadTest)
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.xxx.MessagingServicesConfig': Injection of autowired dependencies failed;
nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.xxx.EMSJMSConfig com.xxx.MessagingServicesConfig.emsJmsConfig;
nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type[com.xxx.EMSJMSConfig] 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)}
我还需要做些什么才能使其正常工作吗?
以下是测试设置。
@Configuration
@Import({MessagingServicesConfig.class,...,EMSJMSConfig.class
})
public class MessagingConfig {}
@Profile("EMS-MESSAGING")
@Configuration
public class EMSJMSConfig {
@Bean
public javax.jms.ConnectionFactory jmsSubscriberConnectionFactory() throws JMSException {
SingleConnectionFactory singleConnectionFactory = new SingleConnectionFactory(tibjmsConnectionFactory());
return singleConnectionFactory;
}
}
@Configuration
public class MessagingServicesConfig {
@Autowired
private EMSJMSConfig emsJmsConfig;
@Bean(destroyMethod = "shutdown")
public MessagingService messagingService() throws JMSException {
...
ConnectionFactory cf=emsJmsConfig.jmsSubscriberConnectionFactory(); // Getting NPE at this line.
}
}
最后是测试类,
public class MessagingServicesConfigTest {
private MessagingServicesConfig config;
private EMSJMSConfig emsJmsConfig;
@BeforeMethod
public void setUp() throws Exception {
config = new MessagingServicesConfig();
... //what needs to be done here to have the EMSJMSConfig
}
@Test
public void testBuildsCorrectService() throws JMSException {
MessagingService service = config.messagingService();
...
}
}
最佳答案
通过调用new
,您自己创建对象,Spring对此一无所知。
此外,您应该有一个能够识别您的 bean 的测试配置。
使用适当的Runner
来加载SpringContext
。
@ContextConfiguration(classes = TestConfig.class)
@RunWith(SpringRunner.class)
class Tests {
@Autowired // if needed
private MessagingServicesConfig config;
}
在TestConfig
中,您可以创建bean
或从应用程序导入配置:
@Configuration
@Import({MessagingServicesConfig.class})
public class TestConfig {}
@Configuration
@Import({EMSJMSConfig.class})
public class MessagingServicesConfig {}
或者您可以直接引用您的配置类:
@ContextConfiguration(classes = {MessagingServicesConfig.class, EMSJMSConfig.class})
关于java - Autowiring 在 Junit 测试和 spring @configuration 中失败,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/54327368/