带有谓词的弹簧数据 JPA 方法 findAll() - QueryDslPredicateExecutor
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【中文标题】带有谓词的弹簧数据 JPA 方法 findAll() - QueryDslPredicateExecutor【英文标题】：spring data JPA method findAll() with Predicate - QueryDslPredicateExecutor 【发布时间】：2015-08-18 07:03:47 【问题描述】：我被这个错误困住了：
我想使用带有QueryDslPredicateExecutor 的谓词进行搜索的方法。当方法在我的服务实现上运行时，我收到了这个错误：
16:59:44,165 DEBUG [org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver] (http-localhost-127.0.0.1-9090-4) Resolving exception from handler [public br.com.cleartech.itx.web.dto.PageDto br.com.cleartech.itx.web.controller.CngController.list(br.com.cleartech.itx.core.domain.Cng,org.springframework.data.domain.Pageable)]: org.springframework.data.mapping.PropertyReferenceException: No property cng found for type Cng!
16:59:44,167 DEBUG [org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver] (http-localhost-127.0.0.1-9090-4) Invoking @ExceptionHandler method: public org.springframework.web.servlet.ModelAndView br.com.cleartech.itx.web.exception.WebExceptionHandler.runtime(java.lang.Exception)
16:59:44,169 ERROR [br.com.cleartech.itx.web.exception.WebExceptionHandler] (http-localhost-127.0.0.1-9090-4) No property cng found for type Cng!
16:59:44,170 DEBUG [org.springframework.web.servlet.DispatcherServlet] (http-localhost-127.0.0.1-9090-4) Handler execution resulted in exception - forwarding to resolved error view: ModelAndView: reference to view with name 'error'; model is exception=org.springframework.data.mapping.PropertyReferenceException: No property cng found for type Cng!: org.springframework.data.mapping.PropertyReferenceException: No property cng found for type Cng!
at org.springframework.data.mapping.PropertyPath.<init>(PropertyPath.java:75) [spring-data-commons-1.8.5.RELEASE.jar:]
at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:327) [spring-data-commons-1.8.5.RELEASE.jar:]
at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:307) [spring-data-commons-1.8.5.RELEASE.jar:]
at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:270) [spring-data-commons-1.8.5.RELEASE.jar:]
at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:241) [spring-data-commons-1.8.5.RELEASE.jar:]
at org.springframework.data.jpa.repository.query.QueryUtils.toJpaOrder(QueryUtils.java:448) [spring-data-jpa-1.6.5.RELEASE.jar:]
at org.springframework.data.jpa.repository.query.QueryUtils.toOrders(QueryUtils.java:411) [spring-data-jpa-1.6.5.RELEASE.jar:]
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.getQuery(SimpleJpaRepository.java:499) [spring-data-jpa-1.6.5.RELEASE.jar:]
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.getQuery(SimpleJpaRepository.java:480) [spring-data-jpa-1.6.5.RELEASE.jar:]
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.findAll(SimpleJpaRepository.java:362) [spring-data-jpa-1.6.5.RELEASE.jar:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_21]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_21]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_21]
at java.lang.reflect.Method.invoke(Method.java:601) [rt.jar:1.7.0_21]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:405) [spring-data-commons-1.8.5.RELEASE.jar:]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:390) [spring-data-commons-1.8.5.RELEASE.jar:]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:344) [spring-data-commons-1.8.5.RELEASE.jar:]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) [spring-aop-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96) [spring-tx-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260) [spring-tx-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94) [spring-tx-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) [spring-aop-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:155) [spring-tx-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) [spring-aop-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodIntercceptor.invoke(CrudMethodMetadataPostProcessor.java:119) [spring-data-jpa-1.6.5.RELEASE.jar:]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) [spring-aop-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91) [spring-aop-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) [spring-aop-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) [spring-aop-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at com.sun.proxy.$Proxy126.findAll(Unknown Source)
at br.com.cleartech.itx.core.service.impl.CngServiceImpl.search(CngServiceImpl.java:26) [itx-core-0.0.1-SNAPSHOT.jar:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_21]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_21]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_21]
at java.lang.reflect.Method.invoke(Method.java:601) [rt.jar:1.7.0_21]
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317) [spring-aop-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183) [spring-aop-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) [spring-aop-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96) [spring-tx-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260) [spring-tx-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94) [spring-tx-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) [spring-aop-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) [spring-aop-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at com.sun.proxy.$Proxy127.search(Unknown Source)
at br.com.cleartech.itx.web.controller.CngController.list(CngController.java:41) [classes:]
at br.com.cleartech.itx.web.controller.CngController$$FastClassBySpringCGLIB$$48ccc37.invoke(<generated>) [spring-core-3.2.13.RELEASE.jar:]
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) [spring-core-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:700) [spring-aop-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) [spring-aop-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:64) [spring-security-core-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) [spring-aop-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:633) [spring-aop-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at br.com.cleartech.itx.web.controller.CngController$$EnhancerBySpringCGLIB$$1abe0d77.list(<generated>) [spring-core-3.2.13.RELEASE.jar:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_21]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_21]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_21]
at java.lang.reflect.Method.invoke(Method.java:601) [rt.jar:1.7.0_21]
at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) [spring-web-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) [spring-web-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) [spring-webmvc-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:743) [spring-webmvc-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:672) [spring-webmvc-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:82) [spring-webmvc-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:919) [spring-webmvc-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:851) [spring-webmvc-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:953) [spring-webmvc-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:855) [spring-webmvc-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:829) [spring-webmvc-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.13.Final.jar:]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:154) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:199) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:110) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106) [spring-web-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:125) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160) [spring-security-web-3.2.6.RELEASE.jar:3.2.6.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343) [spring-web-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260) [spring-web-3.2.13.RELEASE.jar:3.2.13.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.13.Final.jar:]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.13.Final.jar:]
at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50) [jboss-as-jpa-7.1.1.Final.jar:7.1.1.Final]
at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153) [jboss-as-web-7.1.1.Final-RECOMPILE.jar:7.1.1.Final]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.13.Final.jar:]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.13.Final.jar:]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.13.Final.jar:]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.13.Final.jar:]
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.13.Final.jar:]
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.13.Final.jar:]
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.13.Final.jar:]
at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_21]
我的代码如下：
我的实体：
@Entity
@Table(name = "CNG")
public class Cng
@Id
@SequenceGenerator(name = "SEQ_CNG", sequenceName = "SEQ_CNG", allocationSize = 1, initialValue= 1)
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "SEQ_CNG")
@Column(name = "PK_ID_CNG")
private Long pkIdCng;
@ManyToOne
@JoinColumn(name = "FK_ID_OPERADORA", nullable = false)
private Operadora operadora;
@Column(name = "RN2")
private String rn2;
@Column(name = "NGEO")
private String ngeo;
@ManyToOne
@JoinColumn(name = "FK_ID_PREFIXO", nullable = false)
private Prefixo prefixo;
@Column(name = "FAIXA_INICIAL")
private String faixaInicial;
@Column(name = "FAIXA_FINAL")
private String faixaFinal;
@Column(name = "INFO_SOLICITACAO")
private String infoSolicitacao;
@Column(name = "DT_CADASTRO")
@Type(type = "org.jadira.usertype.dateandtime.joda.PersistentDateTime")
private Timestamp dtCadastro;
@Column(name = "FL_ATIVO", precision = 1, scale = 0, nullable = false)
@Enumerated(EnumType.ORDINAL)
private TipoSituacao situacao;
private static final QCng qCng = QCng.cng;
/**
* Cria um novo Predicate com propriedades diferente de null.
* Create a Predicate with not null properties.
* @return @link com.mysema.query.types.Predicate
*/
public Predicate toPredicate()
BooleanBuilder builder = new BooleanBuilder();
if (pkIdCng!= null)
builder.and(qCng.pkIdCng.eq(pkIdCng));
if (operadora != null)
builder.and(qCng.operadora.cdEot.eq(operadora.getCdEot()));
if (rn2!= null)
builder.and(qCng.rn2.eq(rn2));
if (ngeo!= null)
builder.and(qCng.ngeo.eq(ngeo));
if (prefixo != null)
builder.and(qCng.prefixo.idPrefixo.eq(prefixo.getIdPrefixo()));
if (faixaInicial!= null)
builder.and(qCng.faixaInicial.eq(faixaInicial));
if (faixaFinal!= null)
builder.and(qCng.faixaFinal.eq(faixaFinal));
if (infoSolicitacao!= null)
builder.and(qCng.infoSolicitacao.eq(infoSolicitacao));
if (dtCadastro != null)
builder.and(qCng.dtCadastro.loe(dtCadastro));
builder.and(qCng.situacao.eq(TipoSituacao.ATIVO));
return builder;
@Override
public int hashCode()
@Override
public boolean equals(Object obj)
我的控制器：
public @ResponseBody PageDto list(@RequestBody Cng filtro, @PageableDefault(page = 1, size = 15) Pageable pageable)
List<Cng> items = new ArrayList<>();
Page<Cng> page = cngService.search(filtro.toPredicate(), pageable);
if (!page.getContent().isEmpty())
items = page.getContent();
return ViewUtils.setPaging(items, page);
我的服务实现：
@Service
public class CngServiceImpl implements CngService
@Autowired private CngRepository repository;
public Page<Cng> search(Predicate predicate, Pageable pageable)
Page<Cng> page = repository.findAll(predicate, pageable);
return page;
还有我的存储库接口：
public interface CngRepository extends JpaRepository<Cng, Long>,
QueryDslPredicateExecutor<Cng>
//...//
我不明白这是怎么回事... 请帮忙; 谢谢
【问题讨论】：
标记您的服务方法@transactional 通常有效 你能提供完整的堆栈跟踪吗？ 仍然无法使用@transactional 我尝试了规范，我得到了同样的错误。 【参考方案1】：从堆栈跟踪中可以明显看出，您将带有Pageable 的某种Sort 对象传递给findAll(…) 方法。这个排序表达式似乎以cgn 开头。但是，您的类 Cgn 没有名为 cgn 的属性，这正是异常消息告诉您的内容。
org.springframework.data.mapping.PropertyReferenceException: No property cng found for type Cng!
【讨论】：
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