Wir haben mehrere Modelle wie unten.Winterschlaf benutzerdefinierte benutzerdefinierte Felder Auswahl
@Entity
@Cacheable
@org.hibernate.annotations.Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public class Person {
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
public int id;
@Column(nullable = false, columnDefinition = "text")
public String name;
@Column(nullable = false, unique = true)
public long ssid;
@Column(nullable = false)
public int age;
@Column(nullable = false)
public long registration;
@OneToMany(fetch = FetchType.LAZY, mappedBy = "person")
@Cascade(CascadeType.ALL)
public List<Car> cars;
}
Automodell
@Entity
@Cacheable
@org.hibernate.annotations.Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public class Car {
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
public int id;
@Column(nullable = false, columnDefinition = "text")
private String name;
@Column(nullable = false, unique = true)
public String plateNumber;
@ManyToOne(fetch = FetchType.LAZY)
public Person person;
@ManyToOne(fetch = FetchType.LAZY)
public Fabric fabric;
}
Stoff Modell
@Entity
@Cacheable
@org.hibernate.annotations.Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public class Fabric {
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
public int id;
@Column(nullable = false, columnDefinition = "text")
public String name;
@OneToMany(fetch = FetchType.LAZY, mappedBy = "fabric")
@Cascade(CascadeType.ALL)
public List<Car> cars;
}
Das Problem ist, verwenden wir nur einige Attribute des Modells auf verschiedenen Modulen. Es ist in Ordnung, wenn wir einfache typisierte Attribute aufrufen, aber wenn wir so etwas abfragen;
session.createQuery("select name, cars from Person order by registration desc ");
wir erhalten Fehler. Kann jemand helfen?
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not extract ResultSet
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:982)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:71)
org.hibernate.exception.SQLGrammarException: could not extract ResultSet
org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:63)
org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:111)
org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:97)
org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:79)
org.hibernate.loader.Loader.getResultSet(Loader.java:2123)
org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1911)
org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1887)
org.hibernate.loader.Loader.doQuery(Loader.java:932)
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:349)
org.hibernate.loader.Loader.doList(Loader.java:2615)
org.hibernate.loader.Loader.doList(Loader.java:2598)
org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2430)
org.hibernate.loader.Loader.list(Loader.java:2425)
org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:502)
org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:370)
org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:216)
org.hibernate.internal.SessionImpl.list(SessionImpl.java:1481)
org.hibernate.query.internal.AbstractProducedQuery.doList(AbstractProducedQuery.java:1441)
org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1410)
org.hibernate.Query.getResultList(Query.java:427)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:498)
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333)
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
com.sun.proxy.$Proxy88.getAllPostOverview(Unknown Source)
jarvis.api.story.PostController.getAllPostOverviews(PostController.java:51)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:498)
org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:220)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:134)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:71)
Können Sie die vollständige Stack-Trace bereitstellen, so dass wir die Ursache sehen? – Naros
Fügen Sie auch die Car-Entity-Code –
@MaciejKowalski Ich habe Upload-Modelle – raigeki