NHibernate 学习第五天 用户表的增，删，改，查

1. 数据访问层

　　需要一个类 UserSerivce.cs

View Code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using NHibernate;
using llr.Models;

namespace llr.DAL
{
public class UserService
{
static ISession session;
public UserService()
{
session = new NHibernateHelper().GetSession();
}

public static bool Add(User u)
{
try
{
using (ITransaction ts = session.BeginTransaction())
{
session.Save(u);
session.Flush();
ts.Commit();
}
return true;
}
catch (Exception ex)
{
throw ex;
}
}

public static bool Update(User u)
{
try
{
using (ITransaction ts = session.BeginTransaction())
{
session.Update(u);
session.Flush();
ts.Commit();
}
return true;
}
catch (Exception ex)
{
throw ex;
}
}

public static bool Delete(User u)
{
try
{
using (ITransaction ts = session.BeginTransaction())
{
session.Delete(u);
session.Flush();
ts.Commit();
}
return true;
}
catch (Exception ex)
{
throw ex;
}

}

public static IList<User> SelectAll()
{
return session.CreateSQLQuery("select * from users").AddEntity(typeof(User)).List<User>();
}
}
}

2. 业务层

　　需要一个类 UserManager.cs

　　

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using llr.Models;
using llr.DAL;

namespace llr.BLL
{
public class UserManager
{
public static bool Add(User u)
{
return UserService.Add(u);
}

public static bool Update(User u)
{
return UserService.Update(u);
}

public static bool Delete(User u)
{
return UserService.Delete(u);
}

public static IList<User> SelectAll()
{
return UserService.SelectAll();
}
}
}

3. 表示层

　　需要页面显示 用来显示所有的User信息，页面上放一个 GridView 控件

protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
BindUserInfo();
}
}

void BindUserInfo()
{
IList<llr.Models.User> us = llr.BLL.UserManager.SelectAll();
this.GridView1.DataSource = us;
this.GridView1.DataBind();
}

4. 数据库结构 T-SQL

USE [MyNibernate]
GO
/****** Object: Table [dbo].[Roles] Script Date: 06/10/2011 15:40:24 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[Roles](
[rid] [int] IDENTITY(1,1) NOT NULL,
[r_name] [nchar](10) NULL,
[r_desc] [nchar](10) NULL,
CONSTRAINT [PK_Roles] PRIMARY KEY CLUSTERED
(
[rid] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
/****** Object: Table [dbo].[Menus] Script Date: 06/10/2011 15:40:24 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[Menus](
[mid] [int] NOT NULL,
[m_title] [nchar](10) NULL,
[m_parnet] [int] NULL,
[m_url] [nchar](10) NULL,
CONSTRAINT [PK_Menus] PRIMARY KEY CLUSTERED
(
[mid] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
/****** Object: Table [dbo].[Users] Script Date: 06/10/2011 15:40:24 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[Users](
[Id] [int] IDENTITY(1,1) NOT NULL,
[u_name] [nchar](10) NULL,
[u_pwd] [nchar](10) NULL,
[r_id] [int] NOT NULL,
CONSTRAINT [PK_Users] PRIMARY KEY CLUSTERED
(
[Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
/****** Object: Table [dbo].[RoleToMenu] Script Date: 06/10/2011 15:40:24 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[RoleToMenu](
[rid] [int] NULL,
[mid] [int] NULL
) ON [PRIMARY]
GO
/****** Object: ForeignKey [FK_RoleToMenu_Menus] Script Date: 06/10/2011 15:40:24 ******/
ALTER TABLE [dbo].[RoleToMenu] WITH CHECK ADD CONSTRAINT [FK_RoleToMenu_Menus] FOREIGN KEY([mid])
REFERENCES [dbo].[Menus] ([mid])
GO
ALTER TABLE [dbo].[RoleToMenu] CHECK CONSTRAINT [FK_RoleToMenu_Menus]
GO
/****** Object: ForeignKey [FK_RoleToMenu_Roles] Script Date: 06/10/2011 15:40:24 ******/
ALTER TABLE [dbo].[RoleToMenu] WITH CHECK ADD CONSTRAINT [FK_RoleToMenu_Roles] FOREIGN KEY([rid])
REFERENCES [dbo].[Roles] ([rid])
GO
ALTER TABLE [dbo].[RoleToMenu] CHECK CONSTRAINT [FK_RoleToMenu_Roles]
GO
/****** Object: ForeignKey [FK_Users_Roles] Script Date: 06/10/2011 15:40:24 ******/
ALTER TABLE [dbo].[Users] WITH CHECK ADD CONSTRAINT [FK_Users_Roles] FOREIGN KEY([r_id])
REFERENCES [dbo].[Roles] ([rid])
GO
ALTER TABLE [dbo].[Users] CHECK CONSTRAINT [FK_Users_Roles]
GO
我在这里：源代码