整数长查找（）方法的错误JPA

我有一个'DueDiligenceGestori'类映射数据库表。表中的主键是一个数（19），因此我映射该实体有很长如以前那样

下面是类

 package com.xxx.model.duediligencegestori; 

import java.io.Serializable; 
import java.util.Date; 

import javax.persistence.CascadeType; 
import javax.persistence.Column; 
import javax.persistence.Entity; 
import javax.persistence.FetchType; 
import javax.persistence.GeneratedValue; 
import javax.persistence.GenerationType; 
import javax.persistence.Id; 
import javax.persistence.JoinColumn; 
import javax.persistence.OneToOne; 
import javax.persistence.SequenceGenerator; 
import javax.persistence.Table; 

import com.xxx.model.AbstractVersionEntity; 
import com.xxx.model.duediligence.DueDiligence; 
import com.xxx.model.duediligence.DueDiligenceEnumType; 
import com.xxx.model.masterData.Person; 

/** 
* The persistent class for the DUEDILIGENCE_GESTORI database table. 
* 
*/ 
@Entity 
@Table(name = "DUEDILIGENCE_GESTORI") 
public class DueDiligenceGestori extends AbstractVersionEntity implements Serializable { 
    private static final long serialVersionUID = 1L; 

    public DueDiligenceGestori() { 
    } 

    @Id 
    @SequenceGenerator(name = "DUEDILIGENCE_GEST_ID_SEQ_GENERATOR", sequenceName = "DDG_SEQ", allocationSize = 1) 
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "DUEDILIGENCE_GEST_ID_SEQ_GENERATOR") 
    @Column(name = "ID", unique = true, nullable = false) 
    private Long id; 

    @JoinColumn(name = "DUEDILIGENCE_ID", unique = true) 
    @OneToOne(cascade = CascadeType.ALL) 
    private DueDiligence dueDiligence; 

    @Column(name = "IDENTIFICATIVO_SCHEDA", unique = true, nullable = false, length = 4000) 
    private String identificativoScheda; 

    @Column(length = 25) 
    private String attivita; 

    @OneToOne(fetch = FetchType.LAZY) 
    @JoinColumn(name = "CAPO_AREA") 
    private Person capoArea; 

    @OneToOne(fetch = FetchType.LAZY) 
    @JoinColumn(name = "FUEL_S3") 
    private Person fuelS3; 

     public Long getId() { 
     return id; 
    } 

    public void setId(Long id) { 
     this.id = id; 
    } 

     public DueDiligence getDueDiligence() { 
     return dueDiligence; 
    } 

    public void setDueDiligence(DueDiligence dueDiligence) { 
     this.dueDiligence = dueDiligence; 
    } 

     public String getAttivita() { 
     return this.attivita; 
    } 

    public void setAttivita(String attivita) { 
     this.attivita = attivita; 
    } 

     public Person getCapoArea() { 
     return capoArea; 
    } 

    public void setCapoArea(Person capoArea) { 
     this.capoArea = capoArea; 
    } 

    public Person getFuelS3() { 
     return fuelS3; 
    } 

    public void setFuelS3(Person fuelS3) { 
     this.fuelS3 = fuelS3; 
    } 


}

这里在执行错误

18/12/2017 14:38:59,857 [ERROR] [com.xxx.service.BaseRestService] [] [] Rest Service response FAIL Exception {} 

<openjpa-1.1.1-SNAPSHOT-r422266:965591 nonfatal general error> org.apache.openjpa.persistence.PersistenceException: java.lang.Integer cannot be cast to java.lang.Long 

     at org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:882) 

     at org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:776) 

     at kodo.kernel.KodoBroker.find(KodoBroker.java:232) 

     at org.apache.openjpa.kernel.DelegatingBroker.find(DelegatingBroker.java:183) 

     at org.apache.openjpa.persistence.EntityManagerImpl.find(EntityManagerImpl.java:452) 

     at com.xxx.business.repository.AbstractRepository.find(AbstractRepository.java:254) 

     at com.xxx.business.repository.AbstractRepository.find(AbstractRepository.java:250) 

     at com.xxx.business.repository.impl.DueDiligenceGestoriRepositoryImpl.getDueDiligenceGestori(DueDiligenceGestoriRepositoryImpl.java:83) 

     at com.xxx.business.service.impl.DueDiligenceGestoriServiceImpl.getDueDiligenceGestori(DueDiligenceGestoriServiceImpl.java:74) 

     at com.xxx.command.duediligencegestori.SaveDueDiligenceGestoriCmd.doExecute(SaveDueDiligenceGestoriCmd.java:83) 

     at com.xxx.command.duediligencegestori.SaveDueDiligenceGestoriCmd.doExecute(SaveDueDiligenceGestoriCmd.java:28) 

     at com.xxx.command.AbstractCommand.execute(AbstractCommand.java:88) 

     at com.xxx.service.BaseRestService.executeCommand(BaseRestService.java:58) 

     at com.xxx.service.DueDiligenceGestoriRestService.saveDueDiligenceGestoriDTO(DueDiligenceGestoriRestService.java:86) 

     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 

     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 

     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 

     at java.lang.reflect.Method.invoke(Method.java:597) 

     at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60) 

     at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:185) 

     at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75) 

     at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302) 

     at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) 

     at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108) 

     at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) 

     at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84) 

     at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1511) 

     at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1442) 

     at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1391) 

     at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1381) 

     at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416) 

     at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:538) 

     at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:716) 

     at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) 

     at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227) 

     at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125) 

     at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300) 

     at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26) 

     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56) 

     at com.xxx.filter.EnvironmentsFilter.doHttpFilter(EnvironmentsFilter.java:133) 

     at com.xxx.filter.AbstractFilter.doFilter(AbstractFilter.java:43) 

     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56) 

     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715) 

     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681) 

     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321) 

     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120) 

     at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277) 

     at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183) 

     at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454) 

     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209) 

     at weblogic.work.ExecuteThread.run(ExecuteThread.java:178) 

Caused by: java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Long 

     at com.xxx.model.duediligencegestori.DueDiligenceGestori.pcReplaceField(DueDiligenceGestori.java) 

     at org.apache.openjpa.kernel.StateManagerImpl.replaceField(StateManagerImpl.java:3018) 

     at org.apache.openjpa.kernel.StateManagerImpl.storeObjectField(StateManagerImpl.java:2456) 

     at org.apache.openjpa.kernel.StateManagerImpl.storeField(StateManagerImpl.java:2552) 

     at org.apache.openjpa.kernel.StateManagerImpl.storeField(StateManagerImpl.java:786) 

     at org.apache.openjpa.kernel.StateManagerImpl.store(StateManagerImpl.java:782) 

     at org.apache.openjpa.jdbc.meta.strats.HandlerFieldStrategy.load(HandlerFieldStrategy.java:175) 

     at org.apache.openjpa.jdbc.meta.FieldMapping.load(FieldMapping.java:796) 

     at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.load(JDBCStoreManager.java:869) 

     at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.load(JDBCStoreManager.java:821) 

     at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initializeState(JDBCStoreManager.java:343) 

     at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initialize(JDBCStoreManager.java:264) 

     at org.apache.openjpa.kernel.DelegatingStoreManager.initialize(DelegatingStoreManager.java:111) 

     at org.apache.openjpa.datacache.DataCacheStoreManager.initialize(DataCacheStoreManager.java:335) 

     at org.apache.openjpa.kernel.DelegatingStoreManager.initialize(DelegatingStoreManager.java:111) 

     at org.apache.openjpa.kernel.ROPStoreManager.initialize(ROPStoreManager.java:57) 

     at org.apache.openjpa.kernel.BrokerImpl.initialize(BrokerImpl.java:901) 

     at kodo.kernel.KodoBroker.initialize(KodoBroker.java:65) 

     at org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:859)

我试图施放，调试但一切似乎都已正确通过。有谁知道如何行事？感谢您升级OpenJPA的

18/12/2017 15:39:01,519 [ERROR] [com.xxx.service.BaseRestService] [] [] Rest Service response FAIL Exception {} 
<openjpa-1.1.1-SNAPSHOT-r422266:965591 nonfatal general error> org.apache.openjpa.persistence.PersistenceException: java.lang.Integer cannot be cast to java.lang.Long 
       at org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:882) 
       at org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:776) 
       at kodo.kernel.KodoBroker.find(KodoBroker.java:232) 
       at org.apache.openjpa.kernel.DelegatingBroker.find(DelegatingBroker.java:183) 
       at org.apache.openjpa.persistence.EntityManagerImpl.find(EntityManagerImpl.java:452) 
       at com.xxx.business.repository.AbstractRepository.find(AbstractRepository.java:254) 
       at com.xxx.business.repository.AbstractRepository.find(AbstractRepository.java:250) 
       at com.xxx.business.repository.impl.DueDiligenceGestoriRepositoryImpl.getDueDiligenceGestori(DueDiligenceGestoriRepositoryImpl.java:83) 
       at com.xxx.business.service.impl.DueDiligenceGestoriServiceImpl.getDueDiligenceGestori(DueDiligenceGestoriServiceImpl.java:74) 
       at com.xxx.command.duediligencegestori.SaveDueDiligenceGestoriCmd.doExecute(SaveDueDiligenceGestoriCmd.java:83) 
       at com.xxx.command.duediligencegestori.SaveDueDiligenceGestoriCmd.doExecute(SaveDueDiligenceGestoriCmd.java:28) 
       at com.xxx.command.AbstractCommand.execute(AbstractCommand.java:88) 
       at com.xxx.service.BaseRestService.executeCommand(BaseRestService.java:58) 
       at com.xxx.service.DueDiligenceGestoriRestService.saveDueDiligenceGestoriDTO(DueDiligenceGestoriRestService.java:86) 
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
       at java.lang.reflect.Method.invoke(Method.java:597) 
       at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60) 
       at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:185) 
       at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75) 
       at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302) 
       at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) 
       at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108) 
       at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) 
       at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84) 
       at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1511) 
       at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1442) 
       at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1391) 
       at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1381) 
       at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416) 
       at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:538) 
       at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:716) 
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) 
       at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227) 
       at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125) 
       at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300) 
       at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26) 
       at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56) 
       at com.xxx.filter.EnvironmentsFilter.doHttpFilter(EnvironmentsFilter.java:133) 
       at com.xxx.filter.AbstractFilter.doFilter(AbstractFilter.java:43) 
       at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56) 
       at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715) 
       at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681) 
       at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321) 
       at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120) 
       at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277) 
       at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183) 
       at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454) 
       at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209) 
       at weblogic.work.ExecuteThread.run(ExecuteThread.java:178) 
Caused by: java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Long 
       at com.xxx.model.duediligencegestori.DueDiligenceGestori.pcReplaceField(DueDiligenceGestori.java) 
       at org.apache.openjpa.kernel.StateManagerImpl.replaceField(StateManagerImpl.java:3018) 
       at org.apache.openjpa.kernel.StateManagerImpl.storeObjectField(StateManagerImpl.java:2456) 
       at org.apache.openjpa.kernel.StateManagerImpl.storeField(StateManagerImpl.java:2552) 
       at org.apache.openjpa.kernel.StateManagerImpl.storeField(StateManagerImpl.java:786) 
       at org.apache.openjpa.kernel.StateManagerImpl.store(StateManagerImpl.java:782) 
       at org.apache.openjpa.jdbc.meta.strats.HandlerFieldStrategy.load(HandlerFieldStrategy.java:175) 
       at org.apache.openjpa.jdbc.meta.FieldMapping.load(FieldMapping.java:796) 
       at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.load(JDBCStoreManager.java:869) 
       at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.load(JDBCStoreManager.java:821) 
       at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initializeState(JDBCStoreManager.java:343) 
       at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initialize(JDBCStoreManager.java:264) 
       at org.apache.openjpa.kernel.DelegatingStoreManager.initialize(DelegatingStoreManager.java:111) 
       at org.apache.openjpa.datacache.DataCacheStoreManager.initialize(DataCacheStoreManager.java:335) 
       at org.apache.openjpa.kernel.DelegatingStoreManager.initialize(DelegatingStoreManager.java:111) 
       at org.apache.openjpa.kernel.ROPStoreManager.initialize(ROPStoreManager.java:57) 
       at org.apache.openjpa.kernel.BrokerImpl.initialize(BrokerImpl.java:901) 
       at kodo.kernel.KodoBroker.initialize(KodoBroker.java:65) 
       at org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:859) 
       ... 50 more

来源

2017-12-18 Rosa Fago

'find'方法的代码看起来不见了？ – vels4j

查找是EntityManager的标准，它没有被我实现:( –

你使用的是一个非常老的OpenJPA版本。你能升级到更新的版本吗？有一个旧版本的bug报告，但从未修复：https ：//issues.apache.org/jira/browse/OPENJPA-2448 –

这似乎是，当你调用EntitiManager.find界面，你用了错误的类型调用它毕竟

[编辑]堆栈跟踪。

某处（我被堆在repository.impl.DueDiligenceGestoriRepositoryImpl.getDueDiligenceGestori猜测），你有这样的事情：

em.find(DueDiligenceGestori.class, 12); 
// or 
int id; // parameter 
em.find(DueDiligenceGestori.class, id);

你需要将其转换成long第一。如果它是一个常量，那么12L，如果它是一个原语，那么(long) id，如果它是一个Integer对象，则需要一个空检查，然后调用id.longValue()。

来源

2017-12-19 10:40:57 coladict

整数长查找（）方法的错误JPA

回答

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