spring-boot - Spring boot 2.0.3.RELEASE，Spring data rest，应用报错，启动失败

Question

无法启动 spring boot 应用程序。

存储库及其相关域

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> {
}

域

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 +
            '}';
}

主应用程序文件看起来像

@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);
    }
}

我调试了很多但无法找出根本原因。下面给出了 Stach 跟踪。如果您需要任何其他文件和代码，可以提供。任何帮助将不胜感激。

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。