未知的bean实体类 - 与Glassfish和NetBeans错误

我正在使用GlassFish 3.1.1。和NetBeans 6.9.1。在NetBeans中，我创建了Web应用程序并生成了一个实体类。只有我添加的是@GeneratedValue注释。这里是代码：未知的bean实体类 - 与Glassfish和NetBeans错误

/* 
* To change this template, choose Tools | Templates 
* and open the template in the editor. 
*/ 

package entities.worker; 

import java.io.Serializable; 
import java.util.Date; 
import javax.persistence.Basic; 
import javax.persistence.Column; 
import javax.persistence.Entity; 
import javax.persistence.GeneratedValue; 
import javax.persistence.GenerationType; 
import javax.persistence.Id; 
import javax.persistence.NamedQueries; 
import javax.persistence.NamedQuery; 
import javax.persistence.Table; 
import javax.persistence.Temporal; 
import javax.persistence.TemporalType; 

/** 
* 
* @author pzielins 
*/ 
@Entity 
@Table(name = "cdrconfig", catalog = "cdrworker_db", schema = "public") 
@NamedQueries({ 
    @NamedQuery(name = "CdrConfig.findAll", query = "SELECT c FROM CdrConfig c"), 
    @NamedQuery(name = "CdrConfig.findById", query = "SELECT c FROM CdrConfig c WHERE c.id = :id"), 
    @NamedQuery(name = "CdrConfig.findByCdrpath", query = "SELECT c FROM CdrConfig c WHERE c.cdrpath = :cdrpath"), 
    @NamedQuery(name = "CdrConfig.findByWorkerinterval", query = "SELECT c FROM CdrConfig c WHERE c.workerinterval = :workerinterval"), 
    @NamedQuery(name = "CdrConfig.findByMakebackup", query = "SELECT c FROM CdrConfig c WHERE c.makebackup = :makebackup"), 
    @NamedQuery(name = "CdrConfig.findByBackuppath", query = "SELECT c FROM CdrConfig c WHERE c.backuppath = :backuppath"), 
    @NamedQuery(name = "CdrConfig.findByLastsyncdate", query = "SELECT c FROM CdrConfig c WHERE c.lastsyncdate = :lastsyncdate"), 
    @NamedQuery(name = "CdrConfig.findByWaslastsyncmanual", query = "SELECT c FROM CdrConfig c WHERE c.waslastsyncmanual = :waslastsyncmanual")}) 
public class CdrConfig implements Serializable { 
    private static final long serialVersionUID = 1L; 
    @Id 
    @GeneratedValue(strategy=GenerationType.IDENTITY) 
    @Basic(optional = false) 
    @Column(name = "id", nullable = false) 
    private Integer id; 
    @Column(name = "cdrpath", length = 10485760) 
    private String cdrpath; 
    @Column(name = "workerinterval") 
    private Integer workerinterval; 
    @Column(name = "makebackup") 
    private Boolean makebackup; 
    @Column(name = "backuppath", length = 10485760) 
    private String backuppath; 
    @Column(name = "lastsyncdate") 
    @Temporal(TemporalType.TIMESTAMP) 
    private Date lastsyncdate; 
    @Column(name = "waslastsyncmanual") 
    private Boolean waslastsyncmanual; 

    public CdrConfig() { 
    } 

    public CdrConfig(Integer id) { 
     this.id = id; 
    } 

    public Integer getId() { 
     return id; 
    } 

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

    public String getCdrpath() { 
     return cdrpath; 
    } 

    public void setCdrpath(String cdrpath) { 
     this.cdrpath = cdrpath; 
    } 

    public Integer getWorkerinterval() { 
     return workerinterval; 
    } 

    public void setWorkerinterval(Integer workerinterval) { 
     this.workerinterval = workerinterval; 
    } 

    public Boolean getMakebackup() { 
     return makebackup; 
    } 

    public void setMakebackup(Boolean makebackup) { 
     this.makebackup = makebackup; 
    } 

    public String getBackuppath() { 
     return backuppath; 
    } 

    public void setBackuppath(String backuppath) { 
     this.backuppath = backuppath; 
    } 

    public Date getLastsyncdate() { 
     return lastsyncdate; 
    } 

    public void setLastsyncdate(Date lastsyncdate) { 
     this.lastsyncdate = lastsyncdate; 
    } 

    public Boolean getWaslastsyncmanual() { 
     return waslastsyncmanual; 
    } 

    public void setWaslastsyncmanual(Boolean waslastsyncmanual) { 
     this.waslastsyncmanual = waslastsyncmanual; 
    } 

    @Override 
    public int hashCode() { 
     int hash = 0; 
     hash += (id != null ? id.hashCode() : 0); 
     return hash; 
    } 

    @Override 
    public boolean equals(Object object) { 
     // TODO: Warning - this method won't work in the case the id fields are not set 
     if (!(object instanceof CdrConfig)) { 
      return false; 
     } 
     CdrConfig other = (CdrConfig) object; 
     if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) { 
      return false; 
     } 
     return true; 
    } 

    @Override 
    public String toString() { 
     return "entities.worker.CdrConfig[id=" + id + "]"; 
    } 

}

然后，我已经为Entity类生成了一个JPAController类。下面是代码：

/* 
* To change this template, choose Tools | Templates 
* and open the template in the editor. 
*/ 

package jpa.worker; 

import entities.worker.CdrConfig; 
import java.util.List; 
import javax.persistence.EntityManager; 
import javax.persistence.EntityManagerFactory; 
import javax.persistence.Persistence; 
import javax.persistence.Query; 
import javax.persistence.EntityNotFoundException; 
import javax.persistence.criteria.CriteriaQuery; 
import javax.persistence.criteria.Root; 
import jpa.exceptions.NonexistentEntityException; 
import jpa.exceptions.PreexistingEntityException; 

/** 
* 
* @author pzielins 
*/ 
public class CdrConfigJpaController { 

    public CdrConfigJpaController() { 
     emf = Persistence.createEntityManagerFactory("CDRFileWorkerPU"); 
    } 
    private EntityManagerFactory emf = null; 

    public EntityManager getEntityManager() { 
     return emf.createEntityManager(); 
    } 

    public void create(CdrConfig cdrConfig) throws PreexistingEntityException, Exception { 
     EntityManager em = null; 
     try { 
      em = getEntityManager(); 
      em.getTransaction().begin(); 
      em.persist(cdrConfig); 
      em.getTransaction().commit(); 
     } catch (Exception ex) { 
      if (findCdrConfig(cdrConfig.getId()) != null) { 
       throw new PreexistingEntityException("CdrConfig " + cdrConfig + " already exists.", ex); 
      } 
      throw ex; 
     } finally { 
      if (em != null) { 
       em.close(); 
      } 
     } 
    } 

    public void edit(CdrConfig cdrConfig) throws NonexistentEntityException, Exception { 
     EntityManager em = null; 
     try { 
      em = getEntityManager(); 
      em.getTransaction().begin(); 
      cdrConfig = em.merge(cdrConfig); 
      em.getTransaction().commit(); 
     } catch (Exception ex) { 
      String msg = ex.getLocalizedMessage(); 
      if (msg == null || msg.length() == 0) { 
       Integer id = cdrConfig.getId(); 
       if (findCdrConfig(id) == null) { 
        throw new NonexistentEntityException("The cdrConfig with id " + id + " no longer exists."); 
       } 
      } 
      throw ex; 
     } finally { 
      if (em != null) { 
       em.close(); 
      } 
     } 
    } 

    public void destroy(Integer id) throws NonexistentEntityException { 
     EntityManager em = null; 
     try { 
      em = getEntityManager(); 
      em.getTransaction().begin(); 
      CdrConfig cdrConfig; 
      try { 
       cdrConfig = em.getReference(CdrConfig.class, id); 
       cdrConfig.getId(); 
      } catch (EntityNotFoundException enfe) { 
       throw new NonexistentEntityException("The cdrConfig with id " + id + " no longer exists.", enfe); 
      } 
      em.remove(cdrConfig); 
      em.getTransaction().commit(); 
     } finally { 
      if (em != null) { 
       em.close(); 
      } 
     } 
    } 

    public List<CdrConfig> findCdrConfigEntities() { 
     return findCdrConfigEntities(true, -1, -1); 
    } 

    public List<CdrConfig> findCdrConfigEntities(int maxResults, int firstResult) { 
     return findCdrConfigEntities(false, maxResults, firstResult); 
    } 

    private List<CdrConfig> findCdrConfigEntities(boolean all, int maxResults, int firstResult) { 
     EntityManager em = getEntityManager(); 
     try { 
      CriteriaQuery cq = em.getCriteriaBuilder().createQuery(); 
      cq.select(cq.from(CdrConfig.class)); 
      Query q = em.createQuery(cq); 
      if (!all) { 
       q.setMaxResults(maxResults); 
       q.setFirstResult(firstResult); 
      } 
      return q.getResultList(); 
     } finally { 
      em.close(); 
     } 
    } 

    public CdrConfig findCdrConfig(Integer id) { 
     EntityManager em = getEntityManager(); 
     try { 
      return em.find(CdrConfig.class, id); 
     } finally { 
      em.close(); 
     } 
    } 

    public int getCdrConfigCount() { 
     EntityManager em = getEntityManager(); 
     try { 
      CriteriaQuery cq = em.getCriteriaBuilder().createQuery(); 
      Root<CdrConfig> rt = cq.from(CdrConfig.class); 
      cq.select(em.getCriteriaBuilder().count(rt)); 
      Query q = em.createQuery(cq); 
      return ((Long) q.getSingleResult()).intValue(); 
     } finally { 
      em.close(); 
     } 
    } 

}

因为我的应用程序需要与两个数据库的工作，我已经编辑由NetBeans的持久性单元产生的，现在我有某事像这样：

<?xml version="1.0" encoding="UTF-8"?> 
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"> 
    <persistence-unit name="CDRFileWorkerPU" transaction-type="JTA"> 
    <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider> 
    <jta-data-source>jdbc/cdrworkerdb</jta-data-source> 
    <class>entities.config.CdrConfig</class> 
    <exclude-unlisted-classes>true</exclude-unlisted-classes> 
    <properties> 
     <property name="eclipselink.ddl-generation" value="create-tables"/> 
    </properties> 
    </persistence-unit> 
    <persistence-unit name="CDRDataStorePU" transaction-type="JTA"> 
    <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider> 
    <jta-data-source>jdbc/cdrdb</jta-data-source> 
    <class>entities.cdr.CallRecord</class> 
    <class>entities.cdr.RecordColumn</class> 
    <exclude-unlisted-classes>true</exclude-unlisted-classes> 
    <properties> 
     <property name="eclipselink.ddl-generation" value="create-tables"/> 
    </properties> 
    </persistence-unit> 
</persistence>

一切都很好，直到现在，但是当我尝试在我的JSF使用这种方法管Bean：

public void test() { 
     try { 
      CdrConfig cfg = new CdrConfig(); 
      cfg.setBackuppath("foo"); 
      CdrConfigJpaController cjc = new CdrConfigJpaController(); 
      cjc.create(cfg); 
      Record rec = new Record(); 
      RecordJpaController rjc = new RecordJpaController(); 
      rjc.create(rec); 
      RecordColumn col = new RecordColumn(); 
      col.setColumnname("foo1"); 
      col.setRecord(rec); 
      RecordColumnJpaController rcjc = new RecordColumnJpaController(); 
      rcjc.create(col); 
     } catch (Exception ex) { 
      Logger.getLogger(FileWorkerBackup.class.getName()).log(Level.SEVERE, null, ex); 
     } 
    }

我获得以下错误：

java.lang.IllegalArgumentException: Unknown entity bean class: class entities.worker.CdrConfig, please verify that this class has been marked with the @Entity annotation. 
     at org.eclipse.persistence.internal.jpa.EntityManagerImpl.find(EntityManagerImpl.java:576) 
     at org.eclipse.persistence.internal.jpa.EntityManagerImpl.find(EntityManagerImpl.java:460) 
     at jpa.worker.CdrConfigJpaController.findCdrConfig(CdrConfigJpaController.java:125) 
     at jpa.worker.CdrConfigJpaController.create(CdrConfigJpaController.java:43) 
     at web.FileWorkerBackup.test(FileWorkerBackup.java:52) 
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
     at...

来自Google我知道，在“持久单元”编辑器中勾选“在模块中包含所有实体类”有时会有所帮助，但这会给我提供有关表之间某些交叉数据库引用的错误（我确信我不想这样做）。我也在Google上发现，重新启动glassfish会有所帮助（因为未关闭的持久会话），但它并没有帮助。请指点我正确的方向。

来源

2012-01-04 greenskin

也许这条线在XML

<class>entities.config.CdrConfig</class>

应该

<class>entities.worker.CdrConfig</class>

来源

2012-01-04 11:37:30 xyz

感谢队友！不知道包名是从哪里来的，但是非常感谢。 – greenskin 2012-01-04 12:22:18

未知的bean实体类 - 与Glassfish和NetBeans错误

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