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我必须使用Spring框架在Java中创建一个Rest API,当我使用IntelliJ运行它时,一切正常并且没有错误。但是,当我创建一个jar文件并执行它,我的项目不工作了,因为这个错误的:Spring BeanCreationException注入自动装载依赖关系失败
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'newsController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private eu.epitech.jungeryazdi.repository.NewsRepository eu.epitech.jungeryazdi.controller.NewsController.repository; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [eu.epitech.jungeryazdi.repository.NewsRepository] 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 ...
... 17 common frames omitted
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [eu.epitech.jungeryazdi.repository.NewsRepository] 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:1373) ~[jweb.jar:na]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1119) ~[jweb.jar:na]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1014) ~[jweb.jar:na]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:545) ~[jweb.jar:na]
... 19 common frames omitted
因此,这里有我的文件: Application.java
@SpringBootApplication
public class JwebApplication {
public static void main(String[] args) {
SpringApplication.run(JwebApplication.class, args);
}
@Bean
public EmbeddedServletContainerFactory servletContainer() {
TomcatEmbeddedServletContainerFactory factory = new TomcatEmbeddedServletContainerFactory();
return factory;
}
}
NewsRepository的.java
@Repository
public interface NewsRepository extends CrudRepository<News, Long> {
Iterable<News> findByTitle(@Param("title") String title);
}
NewsCont roller.java
@RestController
@RequestMapping("/news")
public class NewsController {
@Autowired(required = true)
private NewsRepository repository;
@Autowired(required = true)
private UserRepository user_repository;
@RequestMapping(value = "", method = RequestMethod.GET)
public HttpEntity getNews(@RequestParam(value = "id", defaultValue = "-1") long id,
@RequestParam(value = "title", defaultValue = "") String title) {
...
}
@RequestMapping(value = "", method = RequestMethod.POST)
public HttpEntity sendNewsToSubscribers(@RequestParam(value = "title") String title,
@RequestParam(value = "message") String message,
@RequestParam(value = "token") String token) {
...
}
}
News.java
@Entity
@Table(name = "NEWS")
public class News {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private long id;
@Column(name = "TITLE")
private String title;
@Column(name = "MESSAGE")
private String message;
@Column(name = "DATE")
private Date date;
public News(String ti, String mess) {
title = ti;
message = mess;
date = new Date();
}
public News() { }
...
}
我在Spring并不专业,但我在想,是否将所有必需的类文件包含在jar中?因为错误说“NoSuchBeanDefinitionException:找不到符合条件的[eu.epitech.jungeryazdi.repository.NewsRepository]类型的合格bean” –
您可以共享您的代码的NewsRepository实现。 –
@Mohit我没有实现NewsRepository,我扩展了CrudRepository,它提供了我需要的方法。 – Max