在此结果集中找不到列名 X - JPA答案

【问题标题】：The column name X was not found in this ResultSet - JPA在此结果集中找不到列名 X - JPA
【发布时间】：2017-07-03 12:13:11
【问题描述】：

所以我有这个公司实体，每次添加公司时都会出错。我将 PostgreSQL 用于我的数据库，并使用双引号文字以 pascalcase 映射表的列。

公司实体：

@Entity
@XmlRootElement
public class Company {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name="\"Id\"")
    private Long id;
    @Column(name="\"Name\"")
    private String name;
    public Long getId() {
        return id;
    }
    public void setId(Long id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
}

公司端点：

@Stateless
@Path("/companies")
public class CompanyEndpoint {
    @PersistenceContext(unitName = "primary")
    private EntityManager em;

    @POST
    @Consumes("application/json")
    public Response create(Company entity) {
        em.persist(entity);
        return Response.created(
                UriBuilder.fromResource(CompanyEndpoint.class)
                        .path(String.valueOf(entity.getId())).build()).build();
    }

    @DELETE
    @Path("/{id:[0-9][0-9]*}")
    public Response deleteById(@PathParam("id") Long id) {
        Company entity = em.find(Company.class, id);
        if (entity == null) {
            return Response.status(Status.NOT_FOUND).build();
        }
        em.remove(entity);
        return Response.noContent().build();
    }

    @GET
    @Path("/{id:[0-9][0-9]*}")
    @Produces("application/json")
    public Response findById(@PathParam("id") Long id) {
        TypedQuery<Company> findByIdQuery = em
                .createQuery(
                        "SELECT DISTINCT c FROM Company c WHERE c.id = :entityId ORDER BY c.id",
                        Company.class);
        findByIdQuery.setParameter("entityId", id);
        Company entity;
        try {
            entity = findByIdQuery.getSingleResult();
        } catch (NoResultException nre) {
            entity = null;
        }
        if (entity == null) {
            return Response.status(Status.NOT_FOUND).build();
        }
        return Response.ok(entity).build();
    }

    @GET
    @Produces("application/json")
    public List<Company> listAll(@QueryParam("start") Integer startPosition,
            @QueryParam("max") Integer maxResult) {
        TypedQuery<Company> findAllQuery = em
                .createQuery("SELECT DISTINCT c FROM Company c ORDER BY c.id",
                        Company.class);
        if (startPosition != null) {
            findAllQuery.setFirstResult(startPosition);
        }
        if (maxResult != null) {
            findAllQuery.setMaxResults(maxResult);
        }
        final List<Company> results = findAllQuery.getResultList();
        return results;
    }

    @PUT
    @Path("/{id:[0-9][0-9]*}")
    @Consumes("application/json")
    public Response update(@PathParam("id") Long id, Company entity) {
        if (entity == null) {
            return Response.status(Status.BAD_REQUEST).build();
        }
        if (id == null) {
            return Response.status(Status.BAD_REQUEST).build();
        }
        if (!id.equals(entity.getId())) {
            return Response.status(Status.CONFLICT).entity(entity).build();
        }
        if (em.find(Company.class, id) == null) {
            return Response.status(Status.NOT_FOUND).build();
        }
        try {
            entity = em.merge(entity);
        } catch (OptimisticLockException e) {
            return Response.status(Response.Status.CONFLICT)
                    .entity(e.getEntity()).build();
        }

        return Response.noContent().build();
    }
}

我最后看到的是org.postgresql.util.PSQLException: The column name "Id" was not found in this ResultSet.

谁能解释我的代码有什么问题。提前谢谢你。

完整的服务器日志：

2017-02-09 13:37:40,650 ERROR [io.undertow.request] (default task-15) UT005023: Exception handling request to /test/rest/companies: org.jboss.resteasy.spi.UnhandledException: javax.ejb.EJBException: javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not insert: [test.model.Company]

    at org.jboss.resteasy.core.ExceptionHandler.handleApplicationException(ExceptionHandler.java:77)

    at org.jboss.resteasy.core.ExceptionHandler.handleException(ExceptionHandler.java:220)

    at org.jboss.resteasy.core.SynchronousDispatcher.writeException(SynchronousDispatcher.java:175)

    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:418)

    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:209)

    at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:221)

    at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)

    at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51)

    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)

    at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)

    at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)

    at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)

    at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)

    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)

    at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)

    at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)

    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)

    at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)

    at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)

    at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)

    at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)

    at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)

    at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)

    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)

    at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)

    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)

    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)

    at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292)

    at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81)

    at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138)

    at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135)

    at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)

    at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)

    at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)

    at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)

    at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)

    at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)

    at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)

    at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)

    at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272)

    at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)

    at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104)

    at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)

    at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:805)

    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

    at java.lang.Thread.run(Thread.java:745)

Caused by: javax.ejb.EJBException: javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not insert: [test.model.Company]

    at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleExceptionInOurTx(CMTTxInterceptor.java:187)

    at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:277)

    at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:327)

    at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:239)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.as.ejb3.component.invocationmetrics.WaitTimeInterceptor.processInvocation(WaitTimeInterceptor.java:47)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.as.ejb3.security.SecurityContextInterceptor.processInvocation(SecurityContextInterceptor.java:100)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.as.ejb3.deployment.processors.StartupAwaitInterceptor.processInvocation(StartupAwaitInterceptor.java:22)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.as.ejb3.component.interceptors.ShutDownInterceptorFactory$1.processInvocation(ShutDownInterceptorFactory.java:64)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:67)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.as.ejb3.component.interceptors.AdditionalSetupInterceptor.processInvocation(AdditionalSetupInterceptor.java:54)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.invocation.ContextClassLoaderInterceptor.processInvocation(ContextClassLoaderInterceptor.java:64)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.invocation.InterceptorContext.run(InterceptorContext.java:356)

    at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:636)

    at org.jboss.invocation.AccessCheckingInterceptor.processInvocation(AccessCheckingInterceptor.java:61)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.invocation.InterceptorContext.run(InterceptorContext.java:356)

    at org.jboss.invocation.PrivilegedWithCombinerInterceptor.processInvocation(PrivilegedWithCombinerInterceptor.java:80)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61)

    at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:198)

    at org.jboss.as.ee.component.ViewDescription$1.processInvocation(ViewDescription.java:185)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61)

    at org.jboss.as.ee.component.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:73)

    at org.jboss.tools.examples.rest.CompanyEndpoint$$$view398.create(Unknown Source)

    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.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:139)

    at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:295)

    at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:249)

    at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:236)

    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:402)

    ... 43 more

Caused by: javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not insert: [test.model.Company]

    at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1692)

    at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1602)

    at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1608)

    at org.hibernate.jpa.spi.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:1152)

    at org.jboss.as.jpa.container.AbstractEntityManager.persist(AbstractEntityManager.java:580)

    at org.jboss.tools.examples.rest.CompanyEndpoint.create(CompanyEndpoint.java:37)

    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.jboss.as.ee.component.ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptor.java:52)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:437)

    at org.jboss.as.weld.ejb.Jsr299BindingsInterceptor.doMethodInterception(Jsr299BindingsInterceptor.java:82)

    at org.jboss.as.weld.ejb.Jsr299BindingsInterceptor.processInvocation(Jsr299BindingsInterceptor.java:93)

    at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:63)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.as.ejb3.component.invocationmetrics.ExecutionTimeInterceptor.processInvocation(ExecutionTimeInterceptor.java:43)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.as.jpa.interceptor.SBInvocationInterceptor.processInvocation(SBInvocationInterceptor.java:47)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:437)

    at org.jboss.weld.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:64)

    at org.jboss.as.weld.ejb.EjbRequestScopeActivationInterceptor.processInvocation(EjbRequestScopeActivationInterceptor.java:83)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.as.ee.concurrent.ConcurrentContextInterceptor.processInvocation(ConcurrentContextInterceptor.java:45)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:21)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61)

    at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:52)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.as.ejb3.component.pool.PooledInstanceInterceptor.processInvocation(PooledInstanceInterceptor.java:51)

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)

    at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:275)

    ... 87 more

Caused by: org.hibernate.exception.SQLGrammarException: could not insert: [test.model.Company]

    at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:106)

    at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)

    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109)

    at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:49)

    at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2803)

    at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3374)

    at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:81)

    at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:619)

    at org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:273)

    at org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:254)

    at org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:299)

    at org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:317)

    at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:272)

    at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:178)

    at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:109)

    at org.hibernate.jpa.event.internal.core.JpaPersistEventListener.saveWithGeneratedId(JpaPersistEventListener.java:67)

    at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:189)

    at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:132)

    at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:58)

    at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:775)

    at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:748)

    at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:753)

    at org.hibernate.jpa.spi.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:1146)

    ... 118 more

Caused by: org.postgresql.util.PSQLException: The column name "Id" was not found in this ResultSet.

    at org.postgresql.jdbc.PgResultSet.findColumn(PgResultSet.java:2591)

    at org.postgresql.jdbc.PgResultSet.getLong(PgResultSet.java:2489)

    at org.jboss.jca.adapters.jdbc.WrappedResultSet.getLong(WrappedResultSet.java:1583)

    at org.hibernate.id.IdentifierGeneratorHelper.get(IdentifierGeneratorHelper.java:138)

    at org.hibernate.id.IdentifierGeneratorHelper.getGeneratedIdentity(IdentifierGeneratorHelper.java:73)

    at org.hibernate.dialect.identity.GetGeneratedKeysDelegate.executeAndExtract(GetGeneratedKeysDelegate.java:61)

    at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:42)

    ... 137 more

【问题讨论】：

您可以得出结论，除非您引用它们，否则 PostgreSQL 默认使用“小写”列命名。一些 JPA 提供商提供了一个很好的简单设置来为您自动引用它们。
只是不要在列名周围加上引号。

标签： java postgresql jpa wildfly

【解决方案1】：

我想您的程序会查找名为“Id”的列，而不是“Id”。您应该以这种方式更改您的注释。

@Column(name="Id")
private Long id;

【讨论】：

谢谢，但你的答案不是我要找的，它会生成小写的列，而不是大写的 CREATE TABLE test.company ( id bigserial NOT NULL, name character varying(255), CONSTRAINT company_pkey主键（id））
我从未使用过 postgres，也从未遇到过大写或小写 sql 语句的问题。也许这个链接帮助可以帮助你：stackoverflow.com/questions/32165694/…
jaysee - 感谢我在 pascalcase 中实施了命名策略，但在插入 db 期间仍然出现错误“在此 ResultSet 中找不到列名“Id””。
@netto 你找到解决方案了吗？我遇到了同样的错误
@el_pup_le 是的，我找到了避免这些错误的技巧，但我不再使用实体管理器的插入（忘记了所谓的）方法......我只是使用 .executeUpdate 执行一个普通的 sql () 方法...

【解决方案2】：

我说西班牙语，对于这个答案，我使用谷歌翻译器：它标记了我同样的错误，但使用 java 并且原因是通过 rs 发送一个不在您的选择查询中的值，例如（"SELECT DISTINCT c FROM Company c ORDER BY c.id ", Company.class);也许列中的 id 拼写错误，因为在想要将该数据传递给另一个元素时找不到它，所以它标记了错误。

这是我的代码：

String sql = "select p.nombre_paciente, p.apellido_paciente, p.nacimiento_paciente, p.edad_paciente, p.cedula_paciente, p.profesion_paciente,p.dlaboral_paciente,p.dparticular_paciente,p.tlaboral_paciente,p.tparticular_paciente,c.idcivil,c.tipo,**p.id_paciente** from paciente p inner join civil c on p.idcivil = c.idcivil where upper(nombre_paciente) like '%" + nombre.toUpperCase() + "%'"
                    + " order by id_paciente offset " + offset + " limit " + utiles.Utiles.REGISTROS_PAGINA;
    System.out.println("--->" + sql);
    try (PreparedStatement ps = Conexion.getConn().prepareStatement(sql)) {
        ResultSet rs = ps.executeQuery();
        String tabla = "";
        while (rs.next()) {
            tabla += "<tr>"
            + "<td>" + rs.getInt("id_paciente") + "</td>"
            + "<td>" + rs.getString("nombre_paciente") + "</td>"
            + "<td>" + rs.getString("apellido_paciente") + "</td>"
            + "<td>" + rs.getDate("nacimiento_paciente") + "</td>"
            + "<td>" + rs.getInt("edad_paciente") + "</td>"
            + "<td>" + rs.getString("cedula_paciente") + "</td>"
            + "<td>" + rs.getString("profesion_paciente") + "</td>"
            + "<td>" + rs.getString("dlaboral_paciente") + "</td>"
            + "<td>" + rs.getString("dparticular_paciente") + "</td>"
            + "<td>" + rs.getString("tlaboral_paciente") + "</td>"
            + "<td>" + rs.getString("tparticular_paciente") + "</td>"
            + "<td>" + rs.getInt("idcivil") + "</td>"
            + "<td>" + rs.getString("tipo") + "</td>"
            + "</tr>";

以粗体标记的内容不存在，在实施时，错误消失了。 Ps .: 我知道这是很多文字

【讨论】：