使用Hibernate（JPA）查询Postgresql没有找到表
我正在使用JPA与Hibernate和Postgresql开发一个应用程序。 使用Netbeans向导，我从现有数据库创建了实体类。 其中一个类的摘录如下：
@Entity @Table(name = "ADM_TYPES") @XmlRootElement @NamedQueries({ @NamedQuery(name = "AdmTypes.findAll", query = "SELECT a FROM AdmTypes a"), @NamedQuery(name = "AdmTypes.findByCType", query = "SELECT a FROM AdmTypes a WHERE a.cType = :cType"), @NamedQuery(name = "AdmTypes.findByVlType", query = "SELECT a FROM AdmTypes a WHERE a.vlType = :vlType"), @NamedQuery(name = "AdmTypes.findByDsType", query = "SELECT a FROM AdmTypes a WHERE a.dsType = :dsType"), @NamedQuery(name = "AdmTypes.findByVlStatus", query = "SELECT a FROM AdmTypes a WHERE a.vlStatus = :vlStatus"), @NamedQuery(name = "AdmTypes.findByCTypePrefix", query = "SELECT a FROM AdmTypes a WHERE a.cType like :cTypePrefix")}) public class AdmTypes implements Serializable { 在EJB中我有：
@Stateless @LocalBean public class ModelManagement { @PersistenceContext private EntityManager em; public List listAdmTypesPrefix(String prefix){ TypedQuery query = em.createNamedQuery("AdmTypes.findByCTypePrefix", AdmTypes.class); query.setParameter("cTypePrefix", "'%"+prefix+"%'"); return query.getResultList(); }
当我尝试执行ModelManagement.listAdmTypesPrefix("APREFIX")它会生成以下错误：
javax.ejb.EJBException at com.sun.ejb.containers.BaseContainer.processSystemException(BaseContainer.java:5193) at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:5091) at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:4879) at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2039) at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1990) at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:222) at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88) at $Proxy192.listAdmTypesPrefix(Unknown Source) at com.librethinking.simmodsys.ejb.__EJB31_Generated__ModelManagement__Intf____Bean__.listAdmTypesPrefix(Unknown Source) at com.librethinking.MockServlet.processRequest(MockServlet.java:64) at com.librethinking.MockServlet.doGet(MockServlet.java:94) at javax.servlet.http.HttpServlet.service(HttpServlet.java:734) at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595) at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98) at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162) at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:330) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231) at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:174) at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828) at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:725) at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1019) at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225) at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137) at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104) at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90) at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79) at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54) at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59) at com.sun.grizzly.ContextTask.run(ContextTask.java:71) at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532) at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513) at java.lang.Thread.run(Thread.java:722) Caused by: javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: ERROR: relation "adm_types" does not exist Position: 136 at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1367) at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1295) at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:265) at com.librethinking.simmodsys.ejb.ModelManagement.listAdmTypesPrefix(ModelManagement.java:39) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1052) at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1124) at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:5366) at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:619) at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800) at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:571) at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doAround(SystemInterceptorProxy.java:162) at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:144) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:861) at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800) at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:370) at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:5338) at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:5326) at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:214) ... 32 more Caused by: org.hibernate.exception.SQLGrammarException: ERROR: relation "adm_types" does not exist Position: 136 at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:122) at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110) at org.hibernate.engine.jdbc.internal.proxy.AbstractStatementProxyHandler.continueInvocation(AbstractStatementProxyHandler.java:129) at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81) at $Proxy194.executeQuery(Unknown Source) at org.hibernate.loader.Loader.getResultSet(Loader.java:1953) at org.hibernate.loader.Loader.doQuery(Loader.java:829) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:289) at org.hibernate.loader.Loader.doList(Loader.java:2438) at org.hibernate.loader.Loader.doList(Loader.java:2424) at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2254) at org.hibernate.loader.Loader.list(Loader.java:2249) at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:470) at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:355) at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:195) at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1248) at org.hibernate.internal.QueryImpl.list(QueryImpl.java:101) at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:256) ... 55 more Caused by: org.postgresql.util.PSQLException: ERROR: relation "adm_types" does not exist Position: 136 at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2101) at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1834) at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255) at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:510) at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:386) at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:271) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.hibernate.engine.jdbc.internal.proxy.AbstractStatementProxyHandler.continueInvocation(AbstractStatementProxyHandler.java:122) ... 70 more
我知道Postgres对大写表名有点讨厌，但是如何将查询更改为指向“ADM_TYPES”而不是AdmTypes？ 不应该自动完成（毕竟我从现有数据库创建了实体类）？ 代码有什么问题？
谢谢！
Postgres（过去，不确定更新）将表名转换为小写。 这是首选的操作程序。 如果你记录你的查询，你会看到hibernate可能会或可能不会引用你的表名（我猜它不是）。
Hibernate将用户模型保存到Postgres
老实说，如果你在Postgres上运行，你真的应该正确配置hibernate，或者，正如我所看到的，规范化你的数据库，因为表不应该有命名空间冲突（从而消除问题）。
//来自文章……
@Entity @Table(name="\"User\"") public class User { ... }
编辑07/31/12：
必须以下列方式对表的字段进行此更改：
对于@Column ，更改添加转义的列的名称“：
@Column(name = "\"C_MODEL\"")
对于@JoinColumn ，更改添加`的列的名称：
@JoinColumn(name = "`TP_MODEL`")
您必须在列上手动执行此操作才能显示错误。