Hibernate 4.3.6和Glassfish 4.0 JPA 2.1对象不是声明类的实例 [英] Hibernate 4.3.6 and Glassfish 4.0 JPA 2.1 object is not an instance of declaring class
问题描述
我为我的ejb项目使用Hibernate 4.3.6和Glassfish 4.0。
我的测试Dao类：
@PersistenceContext
私人EntityManager entityManager;
public void saveTest（）{
Foo testFoo = new Foo（）;
testFoo.setSomething（test）;
entityManager.persist（testFoo）;
entityManager.flush（）;
}
和POJO class Foo.class：
@Entity
@Table（name =FOO）
公共类Foo实现Serializable {
private static最终的长串serialVersionUID = 1L;
私人长ID;
私人字符串的东西;
@Id
@GeneratedValue（strategy = GenerationType.AUTO）
@Column（name =T_ID，unique = true，nullable = false，precision = 15，scale = 0）
public Long getId（）{
return id;
}
public void setId（Long id）{
this.id = id;
}
@Column（name =T_SOMETHING，length = 50）
public String getSomething（）{
return something;
}
public void setSomething（String something）{
this.adi = something;
persistence.xml：
<？xml version =1.0encoding =UTF-8？>
< persistence xmlns =http://xmlns.jcp.org/xml/ns/persistence
xmlns：xsi =http://www.w3.org/2001/XMLSchema-instance
xsi：schemaLocation =http://xmlns.jcp.org/xml/ns/persistence
http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd
version =2.1>
< persistence-unit name =TestAppUnittransaction-type =JTA>
< provider> org.hibernate.jpa.HibernatePersistenceProvider< / provider>
< jta-data-source> jdbc / TestApp< / jta-data-source>
< class> com.example.test.Foo< / class>
< exclude-unlisted-classes> false< / exclude-unlisted-classes>
<属性>
< property name =hibernate.transaction.jta.platform
value =org.hibernate.service.jta.platform.internal.SunOneJtaPlatform/>
< property name =hibernate.dialectvalue =org.hibernate.dialect.Oracle9iDialect/>
< property name =hibernate.show_sqlvalue =true/>
< property name =hibernate.format_sqlvalue =true/>
< / properties>
< / persistence-unit>
< /余辉>
我可以列出表格数据，通过查询获取数据，并且我可以从表格中删除数据。但我不能坚持或合并。
例外情况是：
$ p $ 发生IllegalArgumentException异常调用com.example.test.Foo.id的getter $ or $ $ b $ org.hibernate.property.BasicPropertyAccessor $ BasicGetter.get（BasicPropertyAccessor.java:192）
org.hibernate.tuple.entity .AbstractEntityTuplizer.getIdentifier（AbstractEntityTuplizer.java:346）
at org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier（AbstractEntityPersister.java:4746）
at org.hibernate.persister.entity.AbstractEntityPersister.isTransient （AbstractEntityPersister.java:4465）
在org.hibernate.engine.internal.ForeignKeys.isTransient（ForeignKeys.java:243）
在org.hibernate.event.internal.AbstractSaveEventListener.getEntityState（AbstractSaveEventListener.java ：511）
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.performSaveOrUpdate（DefaultSaveOrUpdateEventListener.java:100）
at org.hibernate.event.internal.DefaultS aveOrUpdateEventListener.onSaveOrUpdate（DefaultSaveOrUpdateEventListener.java:90）
at org.hibernate.internal.SessionImpl.fireSaveOrUpdate（SessionImpl.java:684）
at org.hibernate.internal.SessionImpl.saveOrUpdate（SessionImpl.java： 676）
在org.hibernate.internal.SessionImpl.saveOrUpdate（SessionImpl.java:671）
....
引起：java.lang.IllegalArgumentException：object is不是在sun.reflect.NativeMethodAccessorImpl.invoke0（本地方法）上声明类
的实例。在sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:57）
处的
。 DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）
at java.lang.reflect.Method.invoke（Method.java:601）
at org.hibernate.property.BasicPropertyAccessor $ BasicGetter.get（BasicPropertyAccessor。 java：169）
我在哪里做错了？
这个项目使用persistenc在Glassfish 3.1上工作e.xml version 1.0（jpa）and without the line：
< property name =hibernate.transaction.jta.platform
value =org.hibernate.service.jta.platform.internal.SunOneJtaPlatform/>
预先致谢
我找到了。也许别人遇到这个问题。我想分享解决方案。
由Hibernate和@PersistenceContext注释引起的问题。
我将Hibernate版本更改为4.3.5，并解决了问题。休眠4.3.6和4.3.7有同样的问题。这是由不同的类加载器引起的。 Ejb Classloader和web app Classloader是不同的。
I'm using Hibernate 4.3.6 and Glassfish 4.0 for my ejb project.
My test Dao class :
@PersistenceContext
private EntityManager entityManager;
public void saveTest(){
Foo testFoo = new Foo();
testFoo.setSomething("test");
entityManager.persist(testFoo);
entityManager.flush();
}
and POJO class Foo.class:
@Entity
@Table(name = "FOO")
public class Foo implements Serializable {
private static final long serialVersionUID = 1L;
private Long id;
private String something;
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "T_ID", unique = true, nullable = false, precision = 15, scale = 0)
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
@Column(name = "T_SOMETHING", length = 50)
public String getSomething() {
return something;
}
public void setSomething(String something) {
this.adi = something;
}
}
persistence.xml :
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"
version="2.1">
<persistence-unit name="TestAppUnit" transaction-type="JTA">
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
<jta-data-source>jdbc/TestApp</jta-data-source>
<class>com.example.test.Foo</class>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<properties>
<property name="hibernate.transaction.jta.platform"
value="org.hibernate.service.jta.platform.internal.SunOneJtaPlatform" />
<property name="hibernate.dialect" value="org.hibernate.dialect.Oracle9iDialect" />
<property name="hibernate.show_sql" value="true" />
<property name="hibernate.format_sql" value="true" />
</properties>
</persistence-unit>
</persistence>
I can list table data, get data with query and i can remove data from table. But i can't persist or merge.
Exception is:
IllegalArgumentException occurred calling getter of com.example.test.Foo.id
at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:192)
at org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:346)
at org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:4746)
at org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:4465)
at org.hibernate.engine.internal.ForeignKeys.isTransient(ForeignKeys.java:243)
at org.hibernate.event.internal.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:511)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:100)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:90)
at org.hibernate.internal.SessionImpl.fireSaveOrUpdate(SessionImpl.java:684)
at org.hibernate.internal.SessionImpl.saveOrUpdate(SessionImpl.java:676)
at org.hibernate.internal.SessionImpl.saveOrUpdate(SessionImpl.java:671)
....
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:169)
Where am I doing wrong?
This project working on Glassfish 3.1 with persistence.xml version 1.0(jpa) and without this line :
<property name="hibernate.transaction.jta.platform"
value="org.hibernate.service.jta.platform.internal.SunOneJtaPlatform" />
Thanks in advance
I found it. Maybe others they encounter this problem. I wanted to share the solution.
The problem caused from Hibernate and "@PersistenceContext" annotation.
I change to Hibernate version to 4.3.5 and problem solved. Hibernate 4.3.6 and 4.3.7 has same problem. It's caused by different classloaders. Ejb Classloader and web app Classloader is different.
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