Question

当对投影中的字段应用限制时，我有以下例外：

org.hibernate.QueryException：无法解析属性：surcursal：com.adm_colas.model.AnalisisColas 在org.hibernate.persister.entity.AbstractPropertyMapping.propertyException（AbstractPropertyMapping.java:83）在org.hibernate.persister.entity.AbstractPropertyMapping.toType（AbstractPropertyMapping.java:77）在org.hibernate.persister.entity.AbstractEntityPersister.toType（AbstractEntityPersister.java:1978） at org.hibernate.loader.criteria.EntityCriteriaInfoProvider.getType（EntityCriteriaInfoProvider.java:57） at org.hibernate.loader.criteria.CriteriaQueryTranslator.getPathInfo（CriteriaQueryTranslator.java:245）在org.hibernate.loader.criteria.CriteriaQueryTranslator.createCriteriaEntityNameMap（CriteriaQueryTranslator.java:229）在org.hibernate.loader.criteria.CriteriaQueryTranslator。（CriteriaQueryTranslator.java:112）在org.hibernate.loader.criteria.CriteriaLoader。（CriteriaLoader.java:88）在org.hibernate.internal.SessionImpl.list（SessionImpl.java:1663）在org.hibernate.internal.CriteriaImpl.list（CriteriaImpl.java:380）在org.hibernate.internal.CriteriaImpl.uniqueResult（CriteriaImpl.java:402）在com.adm_colas.dao.AnalisisColasDAOImpl.getSumGroupBy（AnalisisColasDAOImpl.java:121）

这是我要查询的课程：

 @Entity
 @Table(name = "analisis_colas", catalog = "colas")
 public class AnalisisColas implements java.io.Serializable {
/**
 * 
 */
private static final long serialVersionUID = 1L;

private Integer id;
private Date fecha;
private Sucursales sucursal;
private String dia;
private Double semana;
private Integer mes;
private String turno;
private Turnos turnoSucursal;
private Timestamp horaDesde;
private Double tasaEntrada;
private Double clientesNoAtendidos;
private Double tasaServicio;
private Date tiempoEsperaPromedio;
private Timestamp tiempoServicioPromedio;
private Timestamp tiempoTotalPromedio;
private Double tiempoTotalPromedioDec;
private Timestamp maximoTiempoEspera;
private Timestamp maximoTiempoServicio;
private Timestamp horaHasta;
private Double utilizacion;
private Double probSistemaVacio;
private Double probabilidadClienteEsper;
private Double nivelServicioActual;

这是破解我头脑的代码：

 public List<AnalisisColas> getGroupBy(AnalisisColas a) {
    Session session = this.sessionFactory.getCurrentSession();
    Criteria criteria = session.createCriteria(AnalisisColas.class);

    criteria.setProjection(
            Projections
                    .projectionList()
                    .add(Projections.groupProperty("sucursal"), "sucursal")
                    .add(Projections.groupProperty("dia"), "dia")
                    .add(Projections.groupProperty("semana"), "semana")
                    .add(Projections.groupProperty("mes"), "mes")
                    .add(Projections.groupProperty("turnoSucursal"),
                            "turnoSucursal")
                    .add(Projections.avg("tasaEntrada"), "tasaEntrada")
                    .add(Projections.avg("tasaServicio"), "tasaServicio"))
            .setResultTransformer(
                    Transformers.aliasToBean(AnalisisColas.class));

    if (a.getSucursal() != null) {
        criteria.createAlias("surcursal", "s").add(
                Restrictions.like("s.nombre", a.getSucursal().getNombre()));
    }
    if (a.getMes() != null) {
        criteria.add(Restrictions.eq("mes", a.getMes()));
    }
    if (a.getSemana() != null) {
        criteria.add(Restrictions.eq("semana", a.getSemana()));
    }
    if (a.getDia() != null) {
        criteria.add(Restrictions.eq("dia", a.getDia()));
    }
    if (a.getTurnoSucursal() != null) {
        criteria.createAlias("turnoSucursal", "ts").add(
                Restrictions.eq("ts.turnoId", a.getTurnoSucursal()
                        .getTurnoId()));
    }
    List<AnalisisColas> analisisColasList = criteria.list();
    return analisisColasList;
}

任何想法都将受到赞赏。

Answer 1

不确定西班牙语名称，即关于含义......但Hibernate信息非常明确：

无法解析属性： surcursal ：com.adm_colas.model.AnalisisColas

请参阅 surcursal 一词，主要是 sur ...

您的实体是

public class AnalisisColas implements java.io.Serializable {
...
private Sucursales sucursal;

名称是： sucursal ，主要是开头 suc ......

所以，这部分查询是错误的：

if (a.getSucursal() != null) {    
    // here SUR... instead of SUC...
    criteria.createAlias("surcursal", "s").add( 
            Restrictions.like("s.nombre", a.getSucursal().getNombre()));

Hibernate restriction + projection org.hibernate.QueryException：无法解析属性

1 个答案: