从数据库获取枚举值时出错：没有枚举常量，嵌套异常为 java.lang.IllegalArgumentException

问题描述 投票：0回答：3

我试图构建一个示例应用程序，用户可以在其中添加帖子，其他人可以对其进行投票或反对。我将 Vote 作为一个实体类，它保存用户是否赞成或反对的数据。赞成票和反对票以枚举形式表示。当我尝试通过帖子 id 和用户 id 获取所有投票时，出现错误 

No enum constant com.sachinmukherjee.model.VoteType.up; nested exception is java.lang.IllegalArgumentException: at java.lang.Enum.valueOf()

我的投票类（Vote.java）看起来像这样

package com.sachinmukherjee.model;
@Data
@NoArgsConstructor
@AllArgsConstructor
@Entity
public class Vote {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private long id;
    @Enumerated(EnumType.STRING)
    @Column(length = 4)
    private VoteType voteType;
    @ManyToOne(fetch = FetchType.EAGER)
    @JoinColumn(name = "post_id", referencedColumnName = "id")
    private Post post;
    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "user_id", referencedColumnName = "id")
    private User user;
}

我的 VoteType (VoteType.java) 枚举类看起来像这样

package com.sachinmukherjee.model;
public enum VoteType {
    UPVOTE("up"), DOWNVOTE("down"),;

    private String direction;

    VoteType(String direction) {
            this.direction = direction;
    }
    
    public String getDirection() {
        return direction;
    }
    
    public static VoteType getVoteType(String direction) {
        switch (direction) {
        case "up":
            return VoteType.valueOf(direction);
        case "down":
            return VoteType.valueOf(direction);
        default:
            throw new IllegalArgumentException("Illegal Vote");
        }
    }
}

我的 VoteRepository (VoteRepository.java) 类看起来像这样

@Repository
public interface VoteRepository extends JpaRepository<Vote, Long> {
    
    List<Vote> findByPostAndUser(Post post,User user);
}

我的 VoteService (VoteService.java) 类看起来像这样

@Service
@Transactional
public class VoteService {
    
    @Autowired
    private VoteRepository voteRepository;
    @Autowired
    private PostRepository postRepository;
    @Autowired
    private AuthService authService;
    
    public void vote(VoteDto voteDto) {
        User user = authService.getCurrentUser();
        Post post = postRepository.findById(Long.valueOf(voteDto.getPostId()));
        try {
            List<Vote> vote = voteRepository.findByPostAndUser(post, user);
        }catch (Exception e) {
            e.printStackTrace();
        }
    }
}

我的投票表的数据库表结构是这样的

+-----------+------------+------+-----+---------+----------------+
| Field     | Type       | Null | Key | Default | Extra          |
+-----------+------------+------+-----+---------+----------------+
| id        | bigint(20) | NO   | PRI | NULL    | auto_increment |
| vote_type | varchar(4) | YES  |     | NULL    |                |
| post_id   | bigint(20) | YES  | MUL | NULL    |                |
| user_id   | bigint(20) | YES  | MUL | NULL    |                |
+-----------+------------+------+-----+---------+----------------+

我是 Java 和 Spring Boot 的新手，没有得到我错过的东西。 编辑异常的完整堆栈跟踪

org.springframework.dao.InvalidDataAccessApiUsageException: No enum constant com.sachinmukherjee.model.VoteType.UP; nested exception is java.lang.IllegalArgumentException: No enum constant com.sachinmukherjee.model.VoteType.UP
    at org.springframework.orm.jpa.EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(EntityManagerFactoryUtils.java:374)
    at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:257)
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:528)
    at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:61)
    at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:242)
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:153)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:149)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
    at com.sun.proxy.$Proxy249.findByPostAndUser(Unknown Source)
    at com.sachinmukherjee.service.VoteService.vote(VoteService.java:34)
    at com.sachinmukherjee.service.VoteService$$FastClassBySpringCGLIB$$ab25f7.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:366)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:118)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691)
    at com.sachinmukherjee.service.VoteService$$EnhancerBySpringCGLIB$$a49f874d.vote(<generated>)
    at com.sachinmukherjee.controller.VoteController.vote(VoteController.java:25)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:879)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:113)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320)
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:126)
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:90)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:118)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:158)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    at com.sachinmukherjee.security.JWTAuthenticationFilter.doFilterInternal(JWTAuthenticationFilter.java:39)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:92)
    at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:77)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215)
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:358)
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:271)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalArgumentException: No enum constant com.sachinmukherjee.model.VoteType.UP
    at java.lang.Enum.valueOf(Enum.java:238)
    at org.hibernate.type.descriptor.java.EnumJavaTypeDescriptor.fromName(EnumJavaTypeDescriptor.java:84)
    at org.hibernate.type.descriptor.java.EnumJavaTypeDescriptor.wrap(EnumJavaTypeDescriptor.java:54)
    at org.hibernate.type.descriptor.java.EnumJavaTypeDescriptor.wrap(EnumJavaTypeDescriptor.java:16)
    at org.hibernate.type.descriptor.sql.VarcharTypeDescriptor$2.doExtract(VarcharTypeDescriptor.java:62)
    at org.hibernate.type.descriptor.sql.BasicExtractor.extract(BasicExtractor.java:47)
    at org.hibernate.metamodel.model.convert.internal.NamedEnumValueConverter.readValue(NamedEnumValueConverter.java:68)
    at org.hibernate.type.EnumType.nullSafeGet(EnumType.java:250)
    at org.hibernate.type.CustomType.nullSafeGet(CustomType.java:119)
    at org.hibernate.type.AbstractType.hydrate(AbstractType.java:91)
    at org.hibernate.persister.entity.AbstractEntityPersister.hydrate(AbstractEntityPersister.java:3068)
    at org.hibernate.loader.Loader.loadFromResultSet(Loader.java:1866)
    at org.hibernate.loader.Loader.hydrateEntityState(Loader.java:1794)
    at org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:1767)
    at org.hibernate.loader.Loader.getRow(Loader.java:1615)
    at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:745)
    at org.hibernate.loader.Loader.processResultSet(Loader.java:1008)
    at org.hibernate.loader.Loader.doQuery(Loader.java:964)
    at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:354)
    at org.hibernate.loader.Loader.doList(Loader.java:2838)
    at org.hibernate.loader.Loader.doList(Loader.java:2820)
    at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2652)
    at org.hibernate.loader.Loader.list(Loader.java:2647)
    at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:506)
    at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:396)
    at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:219)
    at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1404)
    at org.hibernate.query.internal.AbstractProducedQuery.doList(AbstractProducedQuery.java:1565)
    at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1533)
    at org.hibernate.query.Query.getResultList(Query.java:165)
    at org.hibernate.query.criteria.internal.compile.CriteriaQueryTypeQueryAdapter.getResultList(CriteriaQueryTypeQueryAdapter.java:76)
    at org.springframework.data.jpa.repository.query.JpaQueryExecution$CollectionExecution.doExecute(JpaQueryExecution.java:126)
    at org.springframework.data.jpa.repository.query.JpaQueryExecution.execute(JpaQueryExecution.java:88)
    at org.springframework.data.jpa.repository.query.AbstractJpaQuery.doExecute(AbstractJpaQuery.java:154)
    at org.springframework.data.jpa.repository.query.AbstractJpaQuery.execute(AbstractJpaQuery.java:142)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:618)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:605)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:80)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:366)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:118)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139)
    ... 107 more
java spring-boot hibernate enums spring-data
3个回答
1
投票

您应该将 

UPVOTE
或 
DOWNVOTE
作为数据库中的值。因为JPA会寻找同名的enum。

如果您已将该值存储在数据库中，请将其删除并通过应用程序重新创建它。

1
投票

创建枚举时，枚举名称（UPVOTE（“up”），DOWNVOTE（“down”））进入数据库，确保它在表中大写。 该值仅在服务级别，我建议，除非需要，否则避免添加值字符串。

尝试这个版本的 getVoteType

public static VoteType getVoteType(final String value) {
    for (final VoteType voteType : values()) {
        if (voteType.value.equalsIgnoreCase(value)) {
            return voteType;
        }
    }
    final String message = "Unknown VoteType " + value + ", allowed values are " + Arrays.toString(values());
    throw new Excetion(message);
}
0
投票

没有枚举常量 com.uka.lab.model.Enum.PaiementStatusEnum.0；嵌套异常是 java.lang.IllegalArgumentException：没有枚举常量 com.uka.lab.model.Enum.PaiementStatusEnum.0 在 org.springframework.orm.jpa.EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(EntityManagerFactoryUtils.java:374) ~[spring-orm-5.2.4.RELEASE.jar:5.2.4.RELEASE]

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