• 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>
    

      

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  • 原文地址:https://www.cnblogs.com/jmsjh/p/7364970.html
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