Spring boot 2.0.3.RELEASE, Spring data rest, application error, failed to start

Question

Unable to start spring boot application.

Repository and its associated domain

import com.vircosolutions.mobileapi.domain.Awards;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.rest.core.annotation.RepositoryRestResource;

@RepositoryRestResource(exported = false)
public interface AwardsRepository extends JpaRepository<Integer, 
Awards> {
}

Domain

import lombok.Getter;
import lombok.Setter;
import javax.persistence.*;
import java.io.Serializable;
import java.util.Date; 
import java.util.Objects;

@Getter
@Setter
@Entity
@Table(name = "awards")
public class Awards implements Serializable {


private static final long serialVersionUID = -170576994834461289L;


@Id
@Column(name = "id_awards", nullable = false)
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer id;

@ManyToOne
@JoinColumn(name = "id_user", nullable = false)
private Users user;

@Column (name = "rating", nullable = false)
private float rating;

@Column (name = "award_type", nullable = false)
private String awardType;

@Column (name = "award_date", nullable = false)
private Date awardDate;

@Override
public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;
    Awards awards = (Awards) o;
    return id == awards.id &&
            Float.compare(awards.rating, rating) == 0 &&
            Objects.equals(user, awards.user) &&
            Objects.equals(awardType, awards.awardType) &&
            Objects.equals(awardDate, awards.awardDate);
}

@Override
public int hashCode() {

    return Objects.hash(id, user, rating, awardType, awardDate);
}

@Override
public String toString() {
    return "Awards{" +
            "id=" + id +
            ", user=" + user +
            ", rating=" + rating +
            ", awardType='" + awardType + '\'' +
            ", awardDate=" + awardDate +
            '}';
}

}

Main application file looks like

@EnableSpringDataWebSupport
@SpringBootApplication
public class MobileApplication extends SpringBootServletInitializer {

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        return super.configure(builder);
    }

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

I debugged a lot but unable to find out the root cause. Stach trace is given below. If you need any other file and code it can be provided. Any help will be highly appreciated.

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. 2018-11-22

16:30:35,341 ERROR method: [main] boot.SpringApplication (SpringApplication.java:842) - Application run failed org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'repositorySearchController' defined in URL [jar:file:/home/rashid/.m2/repository/org/springframework/data/spring-data-rest-webmvc/3.0.8.RELEASE/spring-data-rest-webmvc-3.0.8.RELEASE.jar!/org/springframework/data/rest/webmvc/RepositorySearchController.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pagedResourcesAssembler' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.web.PagedResourcesAssembler]: Factory method 'pagedResourcesAssembler' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pageableResolver' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.web.PageableHandlerMethodArgumentResolver]: Factory method 'pageableResolver' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sortResolver' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.web.HateoasSortHandlerMethodArgumentResolver]: Factory method 'sortResolver' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'repositoryRestConfiguration' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.rest.core.config.RepositoryRestConfiguration]: Factory method 'repositoryRestConfiguration' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'repositories' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.repository.support.Repositories]: Factory method 'repositories' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'awardsRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class java.lang.Integer at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:732) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:197) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1276) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1133) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:503) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:760) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE] at com.vircosolutions.mobileapi.MobileApplication.main(MobileApplication.java:19) [classes/:?] Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pagedResourcesAssembler' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.web.PagedResourcesAssembler]: Factory method 'pagedResourcesAssembler' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pageableResolver' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.web.PageableHandlerMethodArgumentResolver]: Factory method 'pageableResolver' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sortResolver' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.web.HateoasSortHandlerMethodArgumentResolver]: Factory method 'sortResolver' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'repositoryRestConfiguration' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.rest.core.config.RepositoryRestConfiguration]: Factory method 'repositoryRestConfiguration' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'repositories' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.repository.support.Repositories]: Factory method 'repositories' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'awardsRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class java.lang.Integer at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:590) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]

Answer 1

您以错误的顺序指定了泛型类型，因此出现错误 Not a managed type: class java.lang.Integer

尝试：

@RepositoryRestResource(exported = false)
public interface AwardsRepository extends JpaRepository<Awards, Integer> {
}

顺便说一句，根据命名约定，您还应该将实体 Awards 重命名为 Award 并相应地重命名存储库。