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java – Spring Hateoas @EnableEntityLinks不提供EntityLinks

发布时间:2020-12-15 01:24:06 所属栏目:大数据 来源:网络整理
导读:我有一个使用Spring HATEOAS的Spring Boot应用程序,它启用了@EnableEntityLinks.该应用程序有一个mvc控制器,包含一个字段@Autowired EntityLinks entityLinks. 我希望@EnableEntityLinks提供EntityLinks bean(根据:Exposing and Managing Links with Spring

我有一个使用Spring HATEOAS的Spring Boot应用程序,它启用了@EnableEntityLinks.该应用程序有一个mvc控制器,包含一个字段@Autowired EntityLinks entityLinks.

我希望@EnableEntityLinks提供EntityLinks bean(根据:Exposing and Managing Links with Spring HATEOAS),但我得到NoSuchBeanDefinitionException:找不到类型为[org.springframework.hateoas.EntityLinks]的限定bean

该应用程序是一个测试应用程序,因此它非常小:

Application.java:

@ComponentScan
@EnableAutoConfiguration
@EnableEntityLinks
public class Application {

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

CustomerController:

@Controller
@ExposesResourceFor(Customer.class)
@RequestMapping(value = "/customers",produces = "application/json")
public class CustomerController {

    @Autowired
    private EntityLinks entityLinks;

    @RequestMapping(method=RequestMethod.GET)
    @ResponseBody
    public ResponseEntity

Customer.java

public class Customer extends ResourceSupport {

    private Long id;
    private String firstName;

    public Customer(Long id,String firstName) {
        this.id = id;
        this.firstName = firstName;
    }   

    public String getFirstName() {
        return firstName;
    }

    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }

}

的pom.xml

...

例外:

2014-01-27 15:04:22.928  INFO 5036 --- [           main] .c.l.ClasspathLoggingApplicationListener : Application failed to start with classpath: [file:/C:/workspaces/Seedmatch33/gs-rest-hateoas-initial/target/classes/,file:/C:/.m2repo/org/springframework/boot/spring-boot-starter-web/1.0.0.RC1/spring-boot-starter-web-1.0.0.RC1.jar,file:/C:/.m2repo/org/springframework/boot/spring-boot-starter/1.0.0.RC1/spring-boot-starter-1.0.0.RC1.jar,file:/C:/.m2repo/org/springframework/boot/spring-boot/1.0.0.RC1/spring-boot-1.0.0.RC1.jar,file:/C:/.m2repo/org/springframework/boot/spring-boot-autoconfigure/1.0.0.RC1/spring-boot-autoconfigure-1.0.0.RC1.jar,file:/C:/.m2repo/org/springframework/boot/spring-boot-starter-logging/1.0.0.RC1/spring-boot-starter-logging-1.0.0.RC1.jar,file:/C:/.m2repo/org/slf4j/jcl-over-slf4j/1.7.5/jcl-over-slf4j-1.7.5.jar,file:/C:/.m2repo/org/slf4j/jul-to-slf4j/1.7.5/jul-to-slf4j-1.7.5.jar,file:/C:/.m2repo/org/slf4j/log4j-over-slf4j/1.7.5/log4j-over-slf4j-1.7.5.jar,file:/C:/.m2repo/ch/qos/logback/logback-classic/1.0.13/logback-classic-1.0.13.jar,file:/C:/.m2repo/ch/qos/logback/logback-core/1.0.13/logback-core-1.0.13.jar,file:/C:/.m2repo/org/springframework/boot/spring-boot-starter-tomcat/1.0.0.RC1/spring-boot-starter-tomcat-1.0.0.RC1.jar,file:/C:/.m2repo/org/apache/tomcat/embed/tomcat-embed-core/7.0.47/tomcat-embed-core-7.0.47.jar,file:/C:/.m2repo/org/apache/tomcat/embed/tomcat-embed-logging-juli/7.0.47/tomcat-embed-logging-juli-7.0.47.jar,file:/C:/.m2repo/org/springframework/spring-web/4.0.0.RELEASE/spring-web-4.0.0.RELEASE.jar,file:/C:/.m2repo/aopalliance/aopalliance/1.0/aopalliance-1.0.jar,file:/C:/.m2repo/org/springframework/spring-webmvc/4.0.0.RELEASE/spring-webmvc-4.0.0.RELEASE.jar,file:/C:/.m2repo/org/springframework/spring-expression/4.0.0.RELEASE/spring-expression-4.0.0.RELEASE.jar,file:/C:/.m2repo/com/fasterxml/jackson/core/jackson-databind/2.3.1/jackson-databind-2.3.1.jar,file:/C:/.m2repo/com/fasterxml/jackson/core/jackson-annotations/2.3.0/jackson-annotations-2.3.0.jar,file:/C:/.m2repo/com/fasterxml/jackson/core/jackson-core/2.3.1/jackson-core-2.3.1.jar,file:/C:/.m2repo/org/springframework/plugin/spring-plugin-core/0.8.0.RELEASE/spring-plugin-core-0.8.0.RELEASE.jar,file:/C:/.m2repo/org/springframework/spring-beans/4.0.0.RELEASE/spring-beans-4.0.0.RELEASE.jar,file:/C:/.m2repo/org/springframework/spring-context/4.0.0.RELEASE/spring-context-4.0.0.RELEASE.jar,file:/C:/.m2repo/org/springframework/spring-aop/4.0.0.RELEASE/spring-aop-4.0.0.RELEASE.jar,file:/C:/.m2repo/org/slf4j/slf4j-api/1.7.5/slf4j-api-1.7.5.jar,file:/C:/.m2repo/org/springframework/hateoas/spring-hateoas/0.8.0.RELEASE/spring-hateoas-0.8.0.RELEASE.jar,file:/C:/.m2repo/org/springframework/spring-core/4.0.0.RELEASE/spring-core-4.0.0.RELEASE.jar,file:/C:/.m2repo/org/objenesis/objenesis/1.3/objenesis-1.3.jar]
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'customerController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.springframework.hateoas.EntityLinks test.CustomerController.entityLinks; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.hateoas.EntityLinks] 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.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:700)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:124)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:658)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:355)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:920)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:909)
    at Application.main(Application.java:12)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.springframework.hateoas.EntityLinks test.CustomerController.entityLinks; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.hateoas.EntityLinks] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
    ... 16 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.hateoas.EntityLinks] 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:1100)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:960)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:855)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
    ... 18 more
最佳答案
确保您的代码,poms或配置文件中的任何地方没有关闭Autwire或设置为false(例如annotation-config =“false”)这可能会导致问题.

另外,仔细检查任何类中缺少的JAR / WAR / etc或缺少注释(例如@EnableEntityLinks).

(编辑:李大同)

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