asp也玩三层架构(有源代码)

实体类

<%

Class UserInfo

    Private mintId

    Public Property Let UserId(intUserId)

        mintId = intUserId

    End Property

    Public Property Get UserId()

        UserId=mintId

    End Property

    Private mstrName

    Public Property Let UserName(strName)

            mstrName = strName

    End Property

    Public Property Get UserName()

            UserName = mstrName

    End Property

    Private mintAge

    Public Property Let UserAge(intAge)

            mintAge=intAge

    End Property

    Public Property Get UserAge()

        UserAge = mintAge

    End Property

End Class

%>

　　数据访问层类

<!--#include file="Model.asp"-->

<!--#include file="DBHelper.asp"-->

<%

Class UserDAL

    Public Sub InsertUser(objUserInfo)

        strInsertSql="insert into Users (UserName,UserAge) values ('" &objUserInfo.UserName &_

            "',"& objUserInfo.UserAge &")"

        DB.ExecuteNonQuery(strInsertSql)

    End Sub

    Public Sub DeleteUser(intUserId)

        strDeleteSql="delete from Users where UserId="& intUserId

        DB.ExecuteNonQuery(strDeleteSql)

    End Sub

    Public Sub UpdateUser(objUserInfo)

        strUpdateSql="update Users set UserName='"& objUserInfo.UserName  &"',UserAge="& objUserInfo.UserAge &_

            " where UserId="& objUserInfo.UserId

        DB.ExecuteNonQuery(strUpdateSql)

    End Sub

    Public Function GetAllUser()

        strSelectSql="select * from Users"

        Set rs=DB.ExecuteQuery(strSelectSql)

        Set dic=Server.CreateObject("Scripting.Dictionary")

        While not rs.eof

            Set user=CreateUser(rs)

            dic.Add user.UserId,user

            rs.MoveNext

        wend

        rs.Close

        Set rs=nothing

        Set GetAllUser=dic

    End Function

    Public Function GetUserById(intUserId)

        strSelectSql="select * from Users where UserId="&intUserId

        Set rs=DB.ExecuteQuery(strSelectSql)

        Set user=CreateUser(rs)

        rs.Close

        Set rs=nothing

        Set GetUserById=user

    End Function

    Private Function CreateUser(rs)

        Set user=new UserInfo

        user.UserId=rs("UserId")

        user.UserName=rs("UserName")

        user.UserAge=rs("UserAge")

        Set CreateUser=user

    End Function

End Class

Set UserDao=new UserDAL

%>

　　用到的DBHelper类

<%

Class DBHelper

    Private conn

    Private Sub Class_Initialize

        strConn="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Server.MapPath("DB.mdb")

        Set conn=Server.CreateObject("ADODB.Connection" )

        conn.Open(strConn)

    End Sub

    Private Sub Class_Terminate

        conn.Close()

        Set conn=nothing

    End Sub

    Public Function ExecuteQuery(strSql)

        Set rs=Server.CreateObject("ADODB.RecordSet")

        rs.Open strSql,conn,1,1

        Set ExecuteQuery=rs

    End Function

    Public Sub ExecuteNonQuery(strSql)

        conn.Execute(strSql)

    End Sub

End Class

Set DB=new DBHelper

%>

　　业务层类

<!--#include file="DAL.asp"-->

<%

Class UserBLL

    Public Function InsertUser(objUserInfo)

        If not IsNumeric(objUserInfo.UserAge) Then

            InsertUser="年龄必需是数字!"

        Else

            UserDao.InsertUser(objUserInfo)

            InsertUser="添加用户成功！"

        End If

    End Function

    Public Function DeleteUser(intUserId)

        If IsNumeric(intUserId) Then

            UserDao.DeleteUser(intUserId)

            DeleteUser="删除用户成功！"

        End If

    End Function

    Public Function UpdateUser(objUserInfo)

        If not IsNumeric(objUserInfo.UserAge) Then

            UpdateUser="年龄必需是数字!"

        Else

            UserDao.UpdateUser(objUserInfo)

            UpdateUser="更新用户成功!"

        End If

    End Function

    Public Function GetAllUser()

        Set GetAllUser=UserDao.GetAllUser()

    End Function

    Public Function GetUserById(intUserId)

        Set GetUserById=UserDao.GetUserById(intUserId)

    End Function

End Class

Set UserManager=new UserBLL

%>

下面是表示层代码
显示所有User

<!--#include file="BLL.asp"-->

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />

<title>无标题文档</title>

</head>

<body>

<form id="form1" name="form1" method="post" action="DoInsertUser.asp">

  <label>姓名:

  <input type="text" name="Name" />

  年龄：

  <input type="text" name="Age" />

  <input type="submit" name="Submit" value="添加" />

  </label>

  <table width="361" border="1">

  <tr>

    <td width="56">UserId</td>

    <td width="74">UserName</td>

    <td width="65">UserAge</td>

    <td width="73"> </td>

    <td width="59"> </td>

  </tr>

  <%Set users=UserManager.GetAllUser()

  For Each user in users.Items

  %>

    <tr>

    <td><%=user.UserId%></td>

    <td><%=user.UserName%></td>

    <td><%=user.UserAge%></td>

    <td><a href="EditUser.asp?UserId=<%=user.UserId%>">编辑</a></td>

    <td><a href="DoDeleteUser.asp?UserId=<%=user.UserId%>">删除</a></td>

  </tr>

  <%

  Next

  %>

</table>

</form>

</body>

</html>

巴特西

asp也玩三层架构(有源代码)

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