玩！框架：请注释您的JPA模型

Question

我的类导入，就是这样：

package models;    

import java.util.Date;    
import javax.persistence.Entity;  
import play.db.jpa.Model;    
import play.mvc.Scope.Session;    
import constantes.CommonConstants;    

@javax.persistence.Entity    
public class ImportCSV extends Model {    

    public ImportCSV() {    
        if (null != Session.current()) {    
            this.CreatedBy = Session.current().get(CommonConstants.SESS_ID_UO_LOGIN);    
            this.uoSite = Session.current().get(CommonConstants.SESS_ID_UO_SITE);    
            this.uoRealm = Session.current().get(CommonConstants.SESS_ID_UO_REALM);    
        }       
    }      

    public String dataType;  
    public String csvFileName; 
    public String fileStatus;  
    public Date CreateAt;    
    public String CreatedBy; 
    public String uoSite;    
    public String uoRealm;    
    public Date LoadedAt;   
    public String realmImporte;  
    public String siteImporte; 

}    

但是，当我尝试ImportCSV.findById(34);时，代码在Play中没有进一步发展！ 1.4.4。

我尝试在Eclipse下以调试模式监视此行，并抛出

java.lang.UnsupportedOperationException: Please annotate your JPA model with @javax.persistence.Entity annotation.
    at play.db.jpa.JPASupport.findById(JPASupport.java:385)
    at jobs.ImportCSVJob.onException(ImportCSVJob.java:92)
    at play.jobs.Job.call(Job.java:127)