Nhibernate基本的增删改查实践

1、链接配置

 <?xml version="1.0" encoding="utf-8" ?>
 <hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
     <session-factory name="Test">
         <property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
         <property name="connection.driver_class">NHibernate.Driver.SqlClientDriver</property>
         <property name="connection.connection_string">Server=.;initial catalog=TestNHibernate;User Id=sa;Password=Hello1234</property>
         <property name="adonet.batch_size"></property>
         <property name="show_sql">true</property>
         <property name="dialect">NHibernate.Dialect.MsSql2005Dialect</property>
         <property name="use_outer_join">true</property>
         <property name="command_timeout"></property>
         <property name="query.substitutions">true , false , yes 'Y', no 'N'</property>
         <property name="proxyfactory.factory_class">NHibernate.ByteCode.Castle.ProxyFactoryFactory, NHibernate.ByteCode.Castle</property>
         <mapping assembly="TestDomain" />
     </session-factory>
 </hibernate-configuration>

hibernate.cfg.xml

2、构建一个Session管理类，用于管理Session

     internal class SessionManager
     {
         private ISessionFactory _sessionFactory;
         public SessionManager()
         {
             _sessionFactory = GetSessionFactory();
         }
         private ISessionFactory GetSessionFactory()
         {
             return (new Configuration()).Configure().BuildSessionFactory();
         }
         public ISession GetSession()
         {
             return _sessionFactory.OpenSession();
         }
     }

SessionManager

3、构建仓储基类，以便继承

     public class BaseRespository<TEntity>
         where TEntity : class,new()
     {
         protected ISession session;
         public ISession Session
         {
             set
             {
                 session = value;
             }
         }

         #region
         public BaseRespository()
         {
             session = (new SessionManager()).GetSession();
         }
         #endregion

         public void Create(TEntity dto)
         {
             CreateTransaction(dto);
         }

         public int CreateAndReturn(TEntity dto)
         {
             return CreateTransaction(dto);
         }

         public int CreateTransaction(TEntity dto)
         {
             using (ITransaction tx = session.BeginTransaction())
             {
                 try
                 {
                     int newId = (int)session.Save(dto);
                     session.Flush();
                     tx.Commit();
                     return newId;
                 }
                 catch (HibernateException)
                 {
                     tx.Rollback();
                     throw;
                 }
             }
         }

         public void Update(TEntity dto)
         {
             session.Update(dto);
             session.Flush();
         }

         public void SaveOrUpdate(IList<TEntity> dtos)
         {
             foreach (var c in dtos)
             {
                 session.SaveOrUpdate(c);
             }
             session.Flush();
         }

         public void Delete(TEntity dto)
         {
             session.Delete(dto);
             session.Flush();
         }

         public TEntity GetById(object entityId)
         {
             return this.session.Get<TEntity>(entityId);
         }

         public IList<TEntity> GetListByExample(TEntity entity)
         {
             return this.session.CreateCriteria(typeof(TEntity))
                 .Add(Example.Create(entity)
                     .IgnoreCase()
                     .EnableLike()
                     .SetEscapeCharacter('&')
                 ).List<TEntity>();
         }

         public IList<TEntity> List()
         {
             return session.CreateCriteria(typeof(TEntity)).List<TEntity>();
         }

         public IList<TEntity> List(params ICriterion[] expression)
         {
             ICriteria query = session.CreateCriteria(typeof(TEntity));
             foreach (ICriterion express in expression)
             {
                 query.Add(express);
             }
             return query.List<TEntity>();
         }

         public IList<TResult> Select<TResult>(Func<TEntity, TResult> express)
         {
             return session.CreateCriteria(typeof(TEntity)).List<TEntity>().Select(express).ToList();
         }
     }

BaseRespository

4、创建领域实体对象

     public class Blogcategory
     {
         public Blogcategory() { }
         public virtual int Cateid { get; set; }
         public virtual IList<Blogarticle> Blogarticles { get; set; }
         public virtual string Catename { get; set; }
         public virtual int Parentid { get; set; }
         public virtual int State { get; set; }
         public virtual int Sortid { get; set; }
         public virtual int Articlecount { get; set; }
         public virtual System.DateTime Createtime { get; set; }
         public virtual string Note { get; set; }
     }

Blogcategory

     public class Blogarticle
     {
         public Blogarticle() { }
         public virtual int Articleid { get; set; }
         public virtual Blogcategory Blogcategory { get; set; }
         public virtual IList<Blogcomment> Blogcomments { get; set; }
         public virtual IList<Blogdigg> Blogdiggs { get; set; }
         public virtual string Title { get; set; }
         public virtual string Content { get; set; }
         public virtual string Description { get; set; }
         public virtual string Imageurl { get; set; }
         public virtual string Tag { get; set; }
         public virtual int Hits { get; set; }
         public virtual bool Istop { get; set; }
         public virtual int State { get; set; }
         public virtual System.Nullable<int> Userid { get; set; }
         public virtual string Username { get; set; }
         public virtual string Userip { get; set; }
         public virtual System.DateTime Createtime { get; set; }
         public virtual System.DateTime Publishtime { get; set; }
         public virtual System.DateTime Updatetime { get; set; }
         public virtual string Note { get; set; }
     }

Blogarticle

     public class Blogcomment
     {
         public Blogcomment() { }
         public virtual int Autoid { get; set; }
         public virtual Blogarticle Blogarticle { get; set; }
         public virtual string Title { get; set; }
         public virtual System.Nullable<int> Userid { get; set; }
         public virtual string Username { get; set; }
         public virtual string Content { get; set; }
         public virtual System.DateTime Createtime { get; set; }
         public virtual string Ip { get; set; }
         public virtual int State { get; set; }
         public virtual System.Nullable<int> Verifyuserid { get; set; }
         public virtual string Verifyuseraccount { get; set; }
     }

Blogcomment

     public class Blogdigg
     {
         public Blogdigg() { }
         public virtual int Autoid { get; set; }
         public virtual Blogarticle Blogarticle { get; set; }
         public virtual string Diggname { get; set; }
         public virtual int Surpporttype { get; set; }
         public virtual int State { get; set; }
         public virtual string Ip { get; set; }
         public virtual System.DateTime Createtime { get; set; }
     }

Blogdigg

5、映射文件配置

 <?xml version="1.0" encoding="utf-8"?>
 <hibernate-mapping assembly="TestDomain" namespace="TestDomain" xmlns="urn:nhibernate-mapping-2.2" default-lazy="false">
     <class name="Blogcategory" table="BlogCategory">
         <id name="Cateid" column="CateID">
             <generator class="native" />
         </id>
         <property name="Catename" column="CateName" />
         <property name="Parentid" column="ParentID" />
         <property name="State" column="State" />
         <property name="Sortid" column="SortID" />
         <property name="Articlecount" column="ArticleCount" />
         <property name="Createtime" column="CreateTime" />
         <property name="Note" column="Note" />
     </class>
 </hibernate-mapping>

Blogcategory.hbm.xml

 <?xml version="1.0" encoding="utf-8"?>
 <hibernate-mapping assembly="TestDomain" namespace="TestDomain" xmlns="urn:nhibernate-mapping-2.2" default-lazy="false">
   <class name="Blogarticle" table="BlogArticle">
     <id name="Articleid" column="ArticleID">
         <generator class="native" />
     </id>
     <many-to-one name="Blogcategory" column="BlogCategory_CateID" />
     <property name="Title" column="Title" />
     <property name="Content" column="Content" />
     <property name="Description" column="Description" />
     <property name="Imageurl" column="ImageUrl" />
     <property name="Tag" column="Tag" />
     <property name="Hits" column="Hits" />
     <property name="Istop" column="IsTop" />
     <property name="State" column="State" />
     <property name="Userid" column="UserID" />
     <property name="Username" column="UserName" />
     <property name="Userip" column="UserIP" />
     <property name="Createtime" column="CreateTime" />
     <property name="Publishtime" column="PublishTime" />
     <property name="Updatetime" column="UpdateTime" />
     <property name="Note" column="Note" />
   </class>
 </hibernate-mapping>

Blogarticle.hbm.xml

 <?xml version="1.0" encoding="utf-8"?>
 <hibernate-mapping assembly="TestDomain" namespace="TestDomain" xmlns="urn:nhibernate-mapping-2.2">
   <class name="Blogcomment" table="BlogComment" lazy="false" >
     <id name="Autoid" column="AutoID">
         <generator class="native" />
     </id>
     <many-to-one name="Blogarticle" column="BlogArticle_ArticleID" />
     <property name="Title" column="Title" />
     <property name="Userid" column="UserID" />
     <property name="Username" column="UserName" />
     <property name="Content" column="Content" />
     <property name="Createtime" column="CreateTime" />
     <property name="Ip" column="IP" />
     <property name="State" column="State" />
     <property name="Verifyuserid" column="VerifyUserID" />
     <property name="Verifyuseraccount" column="VerifyUserAccount" />
   </class>
 </hibernate-mapping>

Blogcomment.hbm.xml

 <?xml version="1.0" encoding="utf-8"?>
 <hibernate-mapping assembly="TestDomain" namespace="TestDomain" xmlns="urn:nhibernate-mapping-2.2">
   <class name="Blogdigg" table="BlogDigg" lazy="false" >
     <id name="Autoid" column="AutoID">
         <generator class="native" />
     </id>
     <many-to-one name="Blogarticle" column="BlogArticle_ArticleID" />
     <property name="Diggname" column="DiggName" />
     <property name="Surpporttype" column="SurpportType" />
     <property name="State" column="State" />
     <property name="Ip" column="IP" />
     <property name="Createtime" column="CreateTime" />
   </class>
 </hibernate-mapping>

Blogdigg.hbm.xml

6、构建仓储类

     public class BlogCategoryRespository : BaseRespository<Blogcategory>
     {

     }
     public class BlogArticleRespository : BaseRespository<Blogarticle>
     {

     }

7、测试

     class Program
     {
         static void Main(string[] args)
         {
             BlogCategoryRespository target = new BlogCategoryRespository();
             Blogcategory dto = new Blogcategory();

             dto.Catename = "Test" + new Random().Next(, ).ToString();
             dto.Parentid = ;
             dto.State = ;
             dto.Createtime = DateTime.Now;

             int newid = target.CreateAndReturn(dto);

             Blogcategory model = target.GetById();
             if (model != null)
             {
                 model.Catename = "newCatename";
                 target.Update(model);
             }

             model = target.GetById();
             if (model != null)
             {
                 target.Delete(model);
             }

             Console.WriteLine(newid);
             Console.Read();
         }
     }

NHibernate下载地址：

1. http://sourceforge.net/projects/nhibernate/
2. http://www.nuget.org/packages/NHibernate/
3. http://hibernate.org/

NHibernate参考手册：NHibernate.chm.rar