Question

我有一个非常简单的类，它给出了一个奇怪的错误。它非常简单，与另一个表没有任何关系。最奇怪的部分似乎是随机发生的，尤其是当我的网站有大量请求时...我使用的是版本2.0.1.400的Nhibernate。

我在网上搜索过它，大多数有同样问题的人说这是Nhibernate在论坛上的一个大错...以前有人遇到过这类问题吗？并附带解决方案？

这可能是数据库连接的问题，汇集了什么???

关于它的最疯狂的事情，有时只发生，所以网站瘫痪..在IIS重置后，一切正常，但后来谁知道什么时候会再次发生！

我得到了：

Server Error in '/' Application.

System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.Exception: Unipa Belediye Master Select<T>(string p_sql,bool closeSession) de Sorun Var ---> NHibernate.ADOException: could not execute query
[ select gelirgenel0_.id as id13_, gelirgenel0_.ParametreAdi as Parametr2_13_, gelirgenel0_.KullanimNedeni as Kullanim3_13_, gelirgenel0_.Degeri as Degeri13_ from Parametre.GelirGenelParametre gelirgenel0_ where (id in(6 , 7 , 62 , 65)) ]
[SQL: select gelirgenel0_.id as id13_, gelirgenel0_.ParametreAdi as Parametr2_13_, gelirgenel0_.KullanimNedeni as Kullanim3_13_, gelirgenel0_.Degeri as Degeri13_ from Parametre.GelirGenelParametre gelirgenel0_ where (id in(6 , 7 , 62 , 65))] ---> System.IndexOutOfRangeException: id13_
  at System.Data.ProviderBase.FieldNameLookup.GetOrdinal(String fieldName)
  at System.Data.SqlClient.SqlDataReader.GetOrdinal(String name)
  at NHibernate.Driver.NHybridDataReader.GetOrdinal(String name)
  at NHibernate.Type.NullableType.NullSafeGet(IDataReader rs, String name)
  at NHibernate.Type.NullableType.NullSafeGet(IDataReader rs, String[] names, ISessionImplementor session, Object owner)
  at NHibernate.Loader.Loader.GetKeyFromResultSet(Int32 i, ILoadable persister, Object id, IDataReader rs, ISessionImplementor session)
  at NHibernate.Loader.Loader.GetRowFromResultSet(IDataReader resultSet, ISessionImplementor session, QueryParameters queryParameters, LockMode[] lockModeArray, EntityKey optionalObjectKey, IList hydratedObjects, EntityKey[] keys, Boolean returnProxies)
  at NHibernate.Loader.Loader.DoQuery(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies)
  at NHibernate.Loader.Loader.DoQueryAndInitializeNonLazyCollections(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies)
  at NHibernate.Loader.Loader.DoList(ISessionImplementor session, QueryParameters queryParameters)
  --- End of inner exception stack trace ---
  at NHibernate.Loader.Loader.DoList(ISessionImplementor session, QueryParameters queryParameters)
  at NHibernate.Loader.Loader.List(ISessionImplementor session, QueryParameters queryParameters, ISet`1 querySpaces, IType[] resultTypes)
  at NHibernate.Hql.Classic.QueryTranslator.List(ISessionImplementor session, QueryParameters queryParameters)
  at NHibernate.Engine.Query.HQLQueryPlan.PerformList(QueryParameters queryParameters, ISessionImplementor session, IList results)
  at NHibernate.Impl.SessionImpl.List(String query, QueryParameters queryParameters, IList results)
  at NHibernate.Impl.SessionImpl.List[T](String query, QueryParameters parameters)
  at NHibernate.Impl.QueryImpl.List[T]()
  at UnipaBelediyeMaster.Master.Select[T](String p_sql, Boolean closeSession) in D:\BelediyeNet\Web\Menu.Src\UnipaBelediyeMaster\UnipaBelediyeMasterr\Master.cs:line 449
  --- End of inner exception stack trace ---
  at UnipaBelediyeMaster.Master.Select[T](String p_sql, Boolean closeSession) in D:\BelediyeNet\Web\Menu.Src\UnipaBelediyeMaster\UnipaBelediyeMasterr\Master.cs:line 461
  at Service.GelirGenelParametreAlIdler(String idler) in c:\webServiceBornovaBel\App_Code\Service.cs:line 1044
  --- End of inner exception stack trace ---

以下是我的实体类：

[Serializable]
    public class GelirGenelParametre
    {
        #region Member Variables
        protected decimal _id;
        protected string _parametreadi;
        protected string _kullanimnedeni;
        protected string _degeri;
        #endregion
        #region Constructors

        public GelirGenelParametre() {}

        public GelirGenelParametre(decimal id, string parametreadi, string kullanimnedeni, string degeri) 
        {
            this._id= id;
            this._parametreadi= parametreadi;
            this._kullanimnedeni= kullanimnedeni;
            this._degeri= degeri;
        }

        #endregion
        #region Public Properties
        public  virtual decimal Id
        {
            get { return _id; }
            set {_id= value; }
        }
        public  virtual string ParametreAdi
        {
            get { return _parametreadi; }
            set {_parametreadi= value; }
        }
        public  virtual string KullanimNedeni
        {
            get { return _kullanimnedeni; }
            set {_kullanimnedeni= value; }
        }
        public  virtual string Degeri
        {
            get { return _degeri; }
            set {_degeri= value; }
        }
        #endregion

并映射xml：

<?xml version="1.0" encoding="utf-8"?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">
  <!--Build: with lujan99@usa.net Nhibernate template-->
  <class name="UnipaBelediyeMaster.GelirGenelParametre,UnipaBelediyeMaster" table="GelirGenelParametre" lazy="false" schema="Parametre">
    <id name="Id" column="id" type="Decimal">
      <generator class="assigned" />
    </id>
    <property name="ParametreAdi" column="ParametreAdi" type="string" not-null="true" />
    <property name="KullanimNedeni" column="KullanimNedeni" type="string" not-null="true" />
    <property name="Degeri" column="Degeri" type="string" not-null="true" />
  </class>
</hibernate-mapping>

实体和映射类似乎都很好，否则我的网站会一直失败......它偶尔会失败......

有什么想法吗？

Answer 1

确保仅在没有其他会话处于活动状态时才实例化新的休眠会话。这将使会话竞争相同的资源并导致像条件一样的死锁。如果有这样的事情，只需删除第二个会话并使用第一个会话本身来查询数据库。

NHibernate.ADOException：无法执行查询 - ＆gt; System.IndexOutOfRangeException：id13_

1 个答案: