Nhibernate学习之起步篇.doc

Nhibernate学习之起步篇-11 学习目的学习Nhibernate基础知识。掌握Nhibernate的配置方法，实现对单表的简单操作，如:创建表，查询，添加，删除，修改。2 开发环境+前期准备开发环境: windows 2003,Visual studio .Net 2005,Sql server 2005 developer edition前期准备: Nhibernate框架,我用的目前最新版NHibernate-1.2.0.CR1, 下载地址: /nhibernate/NHibernate-1.2.0.CR1.msi?modtime=1172161735&big_mirror=03 开发步骤:1).双击下载下来的NHibernate-1.2.0.CR1.msi,将其安装到某个目录，我的目录为: E:download projectormnhibernate.,打开该目录，即可以看到bin,doc,src三个子目录，分别为Realse好的dll或者exe目录，文档说明目录，和源程序目录.2).打开visual studio 2005,创建类库项目NhibernateSample13).在解决方案管理其中，右键点击引用-添加引用，在选项卡种选择浏览，设定查找范围为：E:download projectormnhibernatebin,添加对Nhibernate.dll,log4net.dll, Iesi.Collections, HashCodeProvider四个dll的引用.4).打开SQL Server Management Studio,创建数据库nhibernate。5).在解决方案管理器中添加nhibernate.cfg.xml文件。将下面代码粘贴到此文件:NHibernate.Connection.DriverConnectionProviderNHibernate.Driver.SqlClientDriverServer=;initial catalog=nhibernate;uid=sa;pwd=123;falseNHibernate.Dialect.MsSql2005Dialecttrue该文件是Nhibernate的配置文件，其中connection.connection_string为数据库连接字符串，Dialect项因为我用的是SQL2005,所以为:MsSql2005Dialect注意:表示映射NhibernateSample1程序集下的所有类，所以以后不要需要Configuration.AddClass(.)了；6).添加类文件:User.cs,添加代码: using System;using System.Collections.Generic;using System.Text;namespace NhibernateSample1 public class User private int _id; private string _name; private string _pwd; / / 编号 / public virtual int Id get return _id; set _id = value; / / 名称 / public virtual string Name get return _name; set _name = value; / / 密码 / public virtual string Pwd get return _pwd; set _pwd = value; 注:当前版本的Nhibernate属性必须全部设置为virtual,且类不能为sealed; 6).编写User类的映射配置文件:User.hbm.xml： 注意:该映射文件的属性中的生成操作必须为：嵌入的资源.7).编写管理ISession对象的辅助类: NHibernateHelper.cs,代码为:using System;using System.Web;using NHibernate;using NHibernate.Cfg;namespace NhibernateSample1 public sealed class NHibernateHelper private static readonly ISessionFactory sessionFactory; static NHibernateHelper() sessionFactory = new Configuration().Configure(E:my projectnhibernate studysimle 1NHibernateStudy1NhibernateSample1hibernate.cfg.xml).BuildSessionFactory(); public static ISession GetCurrentSession() ISession currentSession = sessionFactory.OpenSession(); return currentSession; public static void CloseSessionFactory() if (sessionFactory != null) sessionFactory.Close(); 注:因为我用的是单元测试，所以这里的配置文件路径写成固定的了。如果换成windows或者Web程序，可以直接去掉该路径。8) 编写测试CRUD类:UserFixueusing System;using System.Collections.Generic;using System.Text;using NHibernate;using NHibernate.Cfg;using NHibernate.Tool.hbm2ddl;namespace NhibernateSample1 public class UserFixure private ISession session; public UserFixure() / / 创建表 / public bool ExportTable() try Configuration cfg = new Configuration().Configure(E:my projectnhibernate studysimle 1NHibernateStudy1NhibernateSample1hibernate.cfg.xml); session = NHibernateHelper.GetCurrentSession(); ITransaction transaction = session.BeginTransaction(); new SchemaExport(cfg).Create(true, true); transaction.Commit(); return true; catch(Exception ex) throw ex; finally session.Close(); / / 添加 / public int Add() try User u = new User(); u.Name = Guid.NewGuid().ToString(); u.Pwd = 124; session = NHibernateHelper.GetCurrentSession(); ITransaction transaction = session.BeginTransaction(); session.Save(u); transaction.Commit(); return u.Id; catch (Exception ex) throw ex; finally session.Close(); / / 更新 / / public bool Update(int uid) try session = NHibernateHelper.GetCurrentSession(); ITransaction transaction = session.BeginTransaction(); User u = session.Load(typeof(User), uid) as User; if (u != null) u.Name = updatedName; session.SaveOrUpdate(u); transaction.Commit(); u = session.Load(typeof(User), uid) as User; if (u.Name = updatedName) return true; return false; catch (Exception ex) throw ex; finally session.Close(); / / 删除 / / / public bool Delete(int uid) try session = NHibernateHelper.GetCurrentSession(); ITransaction transaction = session.BeginTransaction(); User u = session.Get(typeof(User), uid) as User; if (u != null) session.Delete(u); transaction.Commit(); u = session.Get(typeof(User), uid) as User; if (u = null) return true; return false; catch (Exception ex) throw ex; finally session.Close(); public System.Collections.IList Query() try session = NHibernateHelper.GetCurrentSession(); ITransaction transaction = session.BeginTransaction(); System.Collections.IList list= session.CreateQuery(select u from User as u).List(); transaction.Commit(); return list; catch (Exception ex) throw ex; finally session.Close(); 9)创建新单元测试项目: TestProject1,添加NhibernateSample1的引用10）创建单元测试类: UnitTest1.cs,并输入如下代码:using System;using System.Text;using System.Collections.Generic;using Microsoft.VisualStudio.TestTools.UnitTesting;using NhibernateSample1;namespace TestProject1 / / UnitTest1 的摘要说明 / TestClass public class UnitTest1 public UnitTest1() / / TODO: 在此处添加构造函数逻辑 / #region 其他测试属性 / / 您可以在编写测试时使用下列其他属性: / / 在运行类中的第一个测试之前使用 ClassInitialize 运行代码 / ClassInitialize() / public static void MyClassInitialize(TestContext testContext) / / 在类中的所有测试都已运行之后使用 ClassCleanup 运行代码 / ClassCleanup() / public static void MyClassCleanup() / / 在运行每个测试之前使用 TestInitialize 运行代码 / TestInitialize() / public void MyTestInitialize() / / 在运行每个测试之后使用 TestCleanup 运行代码 / TestCleanup() / public void MyTestCleanup() / #endregion int uid; TestMethod public void TestMethod1() UserFixure userFixure = new UserFixure(); Assert.IsTrue(userFixure.ExportTable(); TestMethod public void TestMethod2() UserFixure userFixure = new UserFixure(); uid = userFixure.Ad