我得到＆＃34; java.sql.SQLException：表METAL_HAREKET_IPTAL中的列ID不允许空值。＆＃34;在Sysbase数据库上。但是我想要插入的值存在（您可以从下面的Tomcat＆＃39; s日志中看到）
metalhareket id: 450
metalhareketiptal id: 450
org.hibernate.exception.ConstraintViolationException: could not insert: [com.turktrust.iab.ebs.pojos.MetalHareketIptal]
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:71)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:40)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2158)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2638)
at org.hibernate.action.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:48)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:250)
at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:298)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:181)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:107)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:187)
at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:172)
at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:535)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:523)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:519)
at com.turktrust.iab.ebs.service.VirmanIptalOnayService.virmanIptal(VirmanIptalOnayService.java:239)
at com.turktrust.iab.ebs.backingbeans.VirmanIptalOnayIslemleriBean.virmanIptal(VirmanIptalOnayIslemleriBean.java:101)
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 org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:329)
at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:342)
at org.jboss.el.parser.AstPropertySuffix.invoke(AstPropertySuffix.java:58)
at org.jboss.el.parser.AstValue.invoke(AstValue.java:96)
at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)
at javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:153)
at javax.faces.event.ActionEvent.processListener(ActionEvent.java:88)
at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:772)
at javax.faces.component.UICommand.broadcast(UICommand.java:300)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:775)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1267)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:82)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:312)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.sql.SQLException: The column ID in table METAL_HAREKET_IPTAL does not allow null values.
at com.sybase.jdbc4.jdbc.SybConnection.getAllExceptions(Unknown Source)
at com.sybase.jdbc4.jdbc.SybStatement.handleSQLE(Unknown Source)
at com.sybase.jdbc4.jdbc.SybStatement.nextResult(Unknown Source)
at com.sybase.jdbc4.jdbc.SybStatement.nextResult(Unknown Source)
at com.sybase.jdbc4.jdbc.SybStatement.updateLoop(Unknown Source)
at com.sybase.jdbc4.jdbc.SybStatement.executeUpdate(Unknown Source)
at com.sybase.jdbc4.jdbc.SybPreparedStatement.executeUpdate(Unknown Source)
at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeUpdate(NewProxyPreparedStatement.java:105)
at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:73)
at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:33)
... 48 more
相关代码如下：
System.out.println("metalhareket id: " + mh.getId().toString());
session = HibernateUtil.getSessionFactory().openSession();
tx = session.beginTransaction();
mh.setDurum(EBSConstants.DURUM_BOOL_PASIF);
session.update(mh);
session.flush();
Date d = new Date();
MetalHareketIptal mhi = new MetalHareketIptal();
mhi.setKullanici(kullanici);
mhi.setMetalHareket(mh);
mhi.setNeden(iptalNedeni);
mhi.setTarih(d);
mhi.setId(mh.getId());
System.out.println("metalhareketiptal id: " + mhi.getId().toString());
session.flush();
session.save(mhi);
Takas takas = mh.getTakas();
BigDecimal geriMiktar = takas.getKalanMiktar().add(mh.getMiktar());
takas.setKalanMiktar(geriMiktar);
takas.setTakasDurum(EBSConstants.TAKAS_DURUM_AKTIF);
session.update(takas);
编辑： MetalHareket的相关hibernate代码是：
<hibernate-mapping>
<class name="com...MetalHareket" table="METAL_HAREKET">
<id name="id" type="java.lang.Long">
<column name="ID"/>
<generator class="identity"/>
</id>
MetalHareket的pojo：
public class MetalHareket implements java.io.Serializable {
private Long id;
public Long getId() {
return this.id;
}
public void setId(Long id) {
this.id = id;
}
metalheraketiptal的hibernate映射：
<hibernate-mapping>
<class name="com....pojos.MetalHareketIptal" table="METAL_HAREKET_IPTAL">
<id name="id" type="java.lang.Long">
<column name="ID"/>
<generator class="identity"/>
</id>
metalhareketiptal的pojo：
public class MetalHareketIptal implements java.io.Serializable {
private Long id;
public Long getId() {
return this.id;
}
public void setId(Long id) {
this.id = id;
}
答案 0 :(得分：1)
上面代码的问题是hibernate文件 而不是：
<generator class="identity"/>
支持DB2，MySQL，MS SQL Server，Sybase和中的标识列 HypersonicSQL。返回的标识符的类型为long，short或int。
应该是这样的：
<generator class="assigned"/>
在这种情况下，元素不会生成主键和 在Java中，需要在调用之前设置主键值 save（）方法。
如果您希望应用程序分配标识符，而不是 让Hibernate生成它们，你可以使用指定的生成器。
http://www.roseindia.net/hibernate/hibernateidgeneratorelement.shtml
我依靠Sybase来生成ID列，但后来我试图在我的应用程序中设置ID元素，这当然没有任何意义。
答案 1 :(得分：0)
表METAL_HAREKET_IPTAL中的列ID不允许空值。您可能正在设置空值检查一次。