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问题描述
我从spring-boot开始,我遇到了一些配置问题。我不能自动提供某些服务。我得到一个BeanCreationException。
I'm starting with spring-boot and i have some configuration problems. I cannot autowire some services. I get an BeanCreationException.
我的应用程序类:
@SpringBootApplication
@EnableAutoConfiguration
@ComponentScan(basePackages = "com.x.server", basePackageClasses = { OAuth2ServerConfiguration.class,
AController.class, BController.class })
public class Application extends SpringBootServletInitializer {
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(Application.class);
}
public static void main(String[] args) {
new Application().configure(new SpringApplicationBuilder(Application.class)).run(args);
}
}
我项目的结构:
----com.x.server
--------Application.java
----com.x.server.controller
--------AController.java
--------BController.java
----other packages
----com.x.server.service
--------WYXService
--------ABCService
----com.x.server.service.serviceImpl
--------WYXServiceImpl
--------ABCServiceImpl
我的服务接口
public interface WYXService<T> {
public void setClazz(final Class<T> clazzToSet);
public void createEntity(T t);
public void removeEntity(T t);
}
实施
@Transactional
@Service("wyxService")
public class WYXServiceImpl<T> implements WYXService<T>
Hier是我自动提供服务的控制器:
Hier is the controller where i autowire the service:
@Path("/test")
@Component
@Controller
@Produces(MediaType.APPLICATION_JSON)
public class BController {
@Autowired
WYXService wyxService;
控制台的错误:
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.x.server.service.WYXService com.x.server.controller.BController.wyxService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.x.server.service.WYXService] 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$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:561)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
... 25 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.x.server.service.WYXService ] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1301)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1047)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:942)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533)
... 27 more
当我从compenentscan中删除两个控制器时,我没有此错误,但我需要扫描这些控制器以访问端点。
when i remove the two controllers from compenentscan, i don't have this error but i need to scan those controllers to access the endpoints.
有人有想法吗?
干杯
推荐答案
我也删除了球衣依赖:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jersey</artifactId>
</dependency>
然后我添加了sprint-boot-starter-web依赖
and then I added the sprint-boot-starter-web dependency
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
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