使用AutoPopulatingList的多对多休眠导致了PropertyAccessException

时间:2011-04-03 07:21:42

标签: hibernate spring

我遇到了这个问题,它在尝试saveOrUpdate()时总是遇到PropertyAccessException;我正在使用Spring 3和hibernate 3.6与tomcat 7。

我有一个M-M Akte到Pemilik

以下是代码:(为简洁起见,省略了简单属性)

public class Akte implements Serializable, Comparable {
    private Long id;
    private int version;

    AutoPopulatingList pemiliks; 

    public Akte() {
    }


    public Long getId() {
        return id;
    }

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

    public int getVersion() {
        return version;
    }

    public void setVersion(int version) {
        this.version = version;
    }


    public AutoPopulatingList getPemiliks() {
        return pemiliks;
    }

    public void setPemiliks(AutoPopulatingList pemiliks) {
        this.pemiliks = pemiliks;
    }

}

public class Pemilik implements Serializable {
    private Long id;
    private int version;
    private Set aktes = new HashSet();

    public Pemilik() {}

    public Long getId() {
        return id;
    }

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

    public int getVersion() {
        return version;
    }

    public void setVersion(int version) {
        this.version = version;
    }

    public Set getAktes() {
        return aktes;
    }

    public void setAktes(Set aktes) {
        this.aktes = aktes;
    }

}

这是映射文件

<hibernate-mapping package="com.notaris.beans">

    <class name="Akte" table="AKTE" dynamic-insert="true" dynamic-update="true" lazy="true">


        <id name="id" column="AKTE_ID">

            <generator class="native"/>

        </id>

        <version name="version" column="VERSION"/>

        <bag name="pemiliks" table="AKTE_PEMILIK" lazy="true" cascade="save-update">
           <key column="AKTE_ID"/>
           <many-to-many class="Pemilik" column="PEMILIK_ID"/>
        </bag>


    </class>
</hibernate-mapping>


<hibernate-mapping package="com.notaris.beans">
    <class name="Pemilik" table="PEMILIK" lazy="true">
        <id name="id" column="PEMILIK_ID">
           <generator class="native"/>
        </id>
        <version name="version" column="VERSION"/>
        <set name="aktes" table="AKTE_PEMILIK" lazy="true" inverse="true" cascade="save-update">
            <key column="PEMILIK_ID"/>
            <many-to-many class="Akte" column="AKTE_ID"/>
        </set>
    </class>
</hibernate-mapping>

现在我试图在processFinish()

期间保存它

做类似的事情: akteService.createAkte(cmd.getAkte()); 在Akte内部有一个包含Pemilik对象的AutoPopulatingList。 和AutoPopulatingList以简单的方式启动新的AutoPopulatingList(Pemilik.class);

这是堆栈跟踪

org.hibernate.PropertyAccessException:调用com.notaris.beans.Akte.pemiliks的setter时发生IllegalArgumentException     org.hibernate.property.BasicPropertyAccessor $ BasicSetter.set(BasicPropertyAccessor.java:128)     org.hibernate.tuple.entity.AbstractEntityTuplizer.setPropertyValues(AbstractEntityTuplizer.java:583)     org.hibernate.tuple.entity.PojoEntityTuplizer.setPropertyValues(PojoEntityTuplizer.java:229)     org.hibernate.persister.entity.AbstractEntityPersister.setPropertyValues(AbstractEntityPersister.java:3822)     org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:299)     org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:203)     org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:129)     org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:210)     org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:195)     org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:117)     org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93)     org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:685)     org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:677)     org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:673)     org.springframework.orm.hibernate3.HibernateTemplate $ 16.doInHibernate(HibernateTemplate.java:740)     org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:406)     org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:374)     org.springframework.orm.hibernate3.HibernateTemplate.saveOrUpdate(HibernateTemplate.java:737)     com.notaris.dao.AkteDaoImpl.createAkte(AkteDaoImpl.java:26)     com.notaris.service.AkteService.createAkte(AkteService.java:22)     com.notaris.controller.AddAkteController.processFinish(AddAkteController.java:228)     org.springframework.web.servlet.mvc.AbstractWizardFormController.validatePagesAndFinish(AbstractWizardFormController.java:650)     org.springframework.web.servlet.mvc.AbstractWizardFormController.processFormSubmission(AbstractWizardFormController.java:500)     org.springframework.web.servlet.mvc.AbstractFormController.handleRequestInternal(AbstractFormController.java:268)     org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)     org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)     org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)     org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)     org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)     org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)     javax.servlet.http.HttpServlet.service(HttpServlet.java:641)     javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

任何想法的家伙? 我看了一下pemiliks属性,它只是一个简单的AutoPopulatingList,我不知道 了解setter无法访问它的问题是什么? 谢谢。

1 个答案:

答案 0 :(得分:1)

需要由hibernate管理的集合类型应该是java.util.Set或List。该错误很可能是由于pemiliks属于AutoPopulatingList类型,将其更改为List(也就是setter&amp; getter)。您可以将集合初始化为AutoPopulatingList的实例。