java 在 JUnit 测试中自动装配 Spring 服务
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Autowire a Spring service in JUnit test
提问by orwe
I have a following Spring service:
我有以下 Spring 服务：
@Service
public class MyService {
public List<int> getIds(Filter filter){
...
}
}
and a configuration class:
和一个配置类：
@Configuration
public static class MyApplicationContext {
@Bean
public Filter filter(ApplicationContext context) {
return new Filter();
}
}
Now, I'd like to create a unit test to check if the getIds method returns correct results. I created a following JUnit test:
现在，我想创建一个单元测试来检查 getIds 方法是否返回正确的结果。我创建了以下 JUnit 测试：
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes=MyApplicationContext.class,
loader=AnnotationConfigContextLoader.class)
public class AppTest
{
@Autowired
Filter filter;
@Autowired
MyService service;
}
The compiler finds the correct bean for the Filter class but throws the "BeanCreationException: Could not autowire field" exception for the service variable. I tried to add the service class to the ContextConfiguration.classes but then the compiler thrown "IllegalStateException: Failed to load ApplicationContext" exception.
编译器为 Filter 类找到正确的 bean，但为服务变量抛出“BeanCreationException：无法自动装配字段”异常。我试图将服务类添加到 ContextConfiguration.classes 但随后编译器抛出了“IllegalStateException: Failed to load ApplicationContext”异常。
How to include MyService in the ContextConfiguration?
如何在 ContextConfiguration 中包含 MyService？
回答by bachr
Add the following annotation to MyApplicationContextfor the service to be scanned @ComponentScan("myservice.package.name")
MyApplicationContext为要扫描的服务添加如下注解@ComponentScan("myservice.package.name")
