Hibernate 执行“持久化”操作时，在此结果集中找不到列名“Column”

我正在使用JPA和Hibernate连接到Postgres数据库，但我无法将实体持久化到数据库中

我在数据库中有以下内容：

CREATE SEQUENCE "MODEL_C_MODEL_seq"
  INCREMENT 1
  MINVALUE 1
  MAXVALUE 9223372036854775807
  START 93
  CACHE 1;
ALTER TABLE "MODEL_C_MODEL_seq"

CREATE TABLE "MODEL"
(
  "C_USER" character varying(10) NOT NULL,
  "C_MODEL" serial NOT NULL,
  "TP_MODEL" character(5) NOT NULL,
  "NM_MODEL" character varying(20) NOT NULL,
  CONSTRAINT "MODEL_PK" PRIMARY KEY ("C_MODEL" ),
  CONSTRAINT "MODEL_CUSER_FK" FOREIGN KEY ("C_USER")
      REFERENCES "USER" ("C_USER") MATCH SIMPLE
      ON UPDATE NO ACTION ON DELETE NO ACTION,
  CONSTRAINT "MODEL_TPMODEL_FK" FOREIGN KEY ("TP_MODEL")
      REFERENCES "ADM_TYPES" ("C_TYPE") MATCH SIMPLE
      ON UPDATE NO ACTION ON DELETE NO ACTION,
  CONSTRAINT "MODEL_CUSER_NMNAME_UNIQUE" UNIQUE ("C_USER" , "NM_MODEL" )
)
WITH (
  OIDS=FALSE
);

我的实体是：

public class Model implements Serializable {
    private static final long serialVersionUID = 1L;

    **@Id
    @SequenceGenerator(name="modelPKgen", sequenceName="MODEL_C_MODEL_seq")
    @GeneratedValue(generator="modelPKgen", strategy= GenerationType.IDENTITY)
    @Column(name = "\"C_MODEL\"", unique=true, insertable=false)    
    private int cModel;**

    @OneToMany(cascade = CascadeType.ALL,  fetch= FetchType.EAGER)//, mappedBy = "model", fetch= FetchType.EAGER)
    @JoinColumn(name= "`C_MODEL`")
    private Collection<State> stateCollection;

    @JoinColumn(name = "`C_USER`", referencedColumnName ="`C_USER`", updatable = false)
    @ManyToOne(optional = false)
    private User user;

    @Basic(optional = false)
    @NotNull
    @Size(min = 1, max = 20)
    @Column(name = "\"NM_MODEL\"")
    private String nmModel;     

    @JoinColumn(name = "\"TP_MODEL\"")
    @ManyToOne(optional = false)
    private AdmTypes admTypes;
...

执行em.persist时，我得到一个异常，出现以下错误：

Caused by: org.hibernate.exception.SQLGrammarException: The column name "C_MODEL" was not found in this ResultSet.

在em.persist中检查Hibernate执行的insert语句时，我看到：

insert 
    into
        "MODEL"
        ("TP_MODEL", "NM_MODEL", "C_USER") 
    values
        (?, ?, ?)

这是完美的，因为这句话在postgres中运行，插入了一个新的记录和一个新生成的C_模型id

有人知道会是什么吗

更新完整的堆栈跟踪：

---

我突然想到几件事：

您正在创建一个序列生成器，然后告诉id生成为GenerationType.IDENTITY。我会尝试GenerationType.SEQUENCE或GenerationType.AUTO。如果自Hibernate文档说它适用于DB2、MySQL、MS SQL Server、Sybase和Hypersonic SQL以来，identity就起作用了，我会感到惊讶

我将从标识符上的@Column注释中去掉insertable=false属性。我假设基于序列生成属性，Hibernate将选择序列值并插入它：选择currvalpg_get_serial_sequence。。。只有当insertable为true时，它才起作用

为sequenceName=\MODEL\U C\U MODEL\U seq\更改sequenceName=MODEL\U C\U MODEL\U seq\

---

我突然想到几件事：

您正在创建一个序列生成器，然后告诉id生成为GenerationType.IDENTITY。我会尝试GenerationType.SEQUENCE或GenerationType.AUTO。如果自Hibernate文档说它适用于DB2、MySQL、MS SQL Server、Sybase和Hypersonic SQL以来，identity就起作用了，我会感到惊讶

我将从标识符上的@Column注释中去掉insertable=false属性。我假设基于序列生成属性，Hibernate将选择序列值并插入它：选择currvalpg_get_serial_sequence。。。只有当insertable为true时，它才起作用

为sequenceName=\MODEL\U C\U MODEL\U seq\更改sequenceName=MODEL\U C\U MODEL\U seq\

---

你能把完整的堆栈跟踪放在粘贴箱上吗？这看起来很奇怪，我想知道JDBC驱动程序是否是罪魁祸首。代码看起来还可以。这个异常是从AbstractJdbc2ResultSet.findColumn引发的，在这里，列名在添加到列名映射时，似乎大小写较低，在查找时，则大小写较低。我怀疑这与您似乎不正确地使用GenerationType.IDENTITY有关。我猜Hibernate正在尝试使用getGeneratedKeys从INSERT读回标识生成的值，但JDBC驱动程序没有将其传回，因为该列未定义为标识。但正如克雷格所要求的，堆栈跟踪将有助于阐明这一点。@CraigRinger和Steve Ebersole谢谢！我添加了stacktrace。我不知道是什么原因，因为你能把整个堆栈跟踪放在一个粘贴箱上吗？这看起来很奇怪，我想知道JDBC驱动程序是否是罪魁祸首。代码看起来还可以。这个异常是从AbstractJdbc2ResultSet.findColumn引发的，在这里，列名在添加到列名映射时，似乎大小写较低，在查找时，则大小写较低。我怀疑这与您似乎不正确地使用GenerationType.IDENTITY有关。我猜Hibernate正在尝试使用getGeneratedKeys从INSERT读回标识生成的值，但JDBC驱动程序没有将其传回，因为该列未定义为标识。但正如克雷格所要求的，堆栈跟踪将有助于阐明这一点。@CraigRinger和Steve Ebersole谢谢！我添加了stacktrace。我不知道这会是什么意思。我看了这个博客，看起来不一样，所以我试了一下，似乎对一些人有用：。关于第3点，这很奇怪，但我必须这样做，以使其他事情能够处理对其他表的引用，而且确实有效，请参阅本文：。当按照1和2中指出的步骤进行操作时，它给出了：org.hibernate.exception.sqlgrammareexception:ERROR:relationmodel_c_model_seq不存在执行1和2，更改sequenceName=model_c_model_seq for sequenceName=\model_c_model_seq会起作用，如果你纠正了你的问题，我会选择你删除我关于反勾号和引号的评论。在我看来，Hibernate在处理这些事情时应该更加一致。谢谢@Jeff。我看了这个博客，看起来不一样，所以我试了一下，似乎对一些人有用：。关于第3点，这很奇怪，但我必须这样做，以使其他事情能够处理对其他表的引用，而且确实有效，请参阅本文：。当按照1和2中指出的步骤进行操作时，它给出了：org.hibernate.exception.sqlgrammareexception:ERROR:relationmodel_c_model_seq不存在执行1和2，更改sequenceName=model_c_model_seq for sequenceName=\model_c_model_seq会起作用，如果你纠正了你的问题，我会选择你删除我关于反勾号和引号的评论。似乎 对我来说，Hibernate应该更加一致地处理这些事情。

insert 
    into
        "MODEL"
        ("TP_MODEL", "NM_MODEL", "C_USER") 
    values
        (?, ?, ?)

javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: The column name "C_MODEL" was not found in this ResultSet.
    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1367)
    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1295)
    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1301)
    at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:866)
    at com.sun.enterprise.container.common.impl.EntityManagerWrapper.persist(EntityManagerWrapper.java:269)
    at com.librethinking.simmodsys.persistence.adapters.ModelConverter.SIMModelToModel(ModelConverter.java:65)
    at com.librethinking.simmodsys.ejb.ModelBean.saveSIMModel(ModelBean.java:72)
    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)
    at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88)
    at $Proxy186.saveSIMModel(Unknown Source)
    at com.librethinking.simmodsys.ejb.__EJB31_Generated__ModelBean__Intf____Bean__.saveSIMModel(Unknown Source)
    at com.librethinking.simmodsys.web.ModelsController.saveModel(ModelsController.java:366)
    at com.librethinking.simmodsys.web.ModelsController.processRequest(ModelsController.java:104)
    at com.librethinking.simmodsys.web.ModelsController.doPost(ModelsController.java:181)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)
    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: org.hibernate.exception.SQLGrammarException: The column name "C_MODEL" was not found in this ResultSet.
    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.AbstractResultSetProxyHandler.continueInvocation(AbstractResultSetProxyHandler.java:108)
    at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81)
    at $Proxy189.getInt(Unknown Source)
    at org.hibernate.id.IdentifierGeneratorHelper.get(IdentifierGeneratorHelper.java:152)
    at org.hibernate.id.IdentifierGeneratorHelper.getGeneratedIdentity(IdentifierGeneratorHelper.java:92)
    at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:100)
    at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:58)
    at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2767)
    at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3278)
    at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:81)
    at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:362)
    at org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:203)
    at org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:183)
    at org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:167)
    at org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:320)
    at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:287)
    at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:193)
    at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:126)
    at org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:78)
    at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:208)
    at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:151)
    at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:78)
    at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:844)
    at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:819)
    at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:823)
    at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:860)
    ... 58 more
Caused by: org.postgresql.util.PSQLException: The column name "C_MODEL" was not found in this ResultSet.
    at org.postgresql.jdbc2.AbstractJdbc2ResultSet.findColumn(AbstractJdbc2ResultSet.java:2550)
    at org.postgresql.jdbc2.AbstractJdbc2ResultSet.getInt(AbstractJdbc2ResultSet.java:2414)
    at sun.reflect.GeneratedMethodAccessor93.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.hibernate.engine.jdbc.internal.proxy.AbstractResultSetProxyHandler.continueInvocation(AbstractResultSetProxyHandler.java:104)
    ... 83 more