用ASP.Net编写留言本

 

1、用Access建造一个数据库data.mdb，建立表Guest,结构如下:
   ID      自动编号

   标题    字符串

   署名    字符串

   正文    备注。
2、guest.aspx

<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.OleDb" %>
<html><head>
<style>
<!--
body{font-size:9pt}
p{font-size:9pt}
td{font-size:9pt}
//-->
</style>
<title>留言本</title></head>
<body>
<p align=right><font size=6>留言本</font></p>
<script language=vb runat=server>
Sub Page_Load(Source As Object, E As EventArgs)
 Dim myConn As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0 ;Data Source=" & server.mappath("data.mdb"))
 Dim myAdapter As New OleDbDataAdapter
 Dim myOleDbCommandBuilder As OleDbCommandBuilder = New OleDbCommandBuilder(myAdapter)
 Dim DS As DataSet = New DataSet

 myAdapter.SelectCommand = new OleDbCommand("select ID, 标题, 署名 from Guest order by id desc", myconn)
 myconn.open()
 myAdapter.Fill(ds, "Guest")
 ml.DataSource=ds.Tables("Guest").DefaultView
 ml.DataBind()
end sub
</script>
  <ASP:DataGrid id="ml" runat="server"
    Width="100%"
    BorderColor="black"
    ShowFooter="false"
    CellPadding=3
    CellSpacing="0"
    Font-Name="宋体"
    Font-Size="9pt"
    HeaderStyle-BackColor="#ddaacc"
    EnableViewState="false"
  >
<Columns>
 <asp:HyperLinkColumn
    DataNavigateUrlField="id"
    DataNavigateUrlFormatString="see.asp?id={0}"
    text="See!"
    Target="_new"
 />
</Columns>

</asp:DataGrid>
<br><br><font size=5>我要留言</font><br>
<form method=post action=send.aspx>
标题:<input type=text name=title><br>
署名:<input type=text name=name><br>
内容:<textarea name=body></textarea><br>
<input type=submit>
</form>

3、send.aspx

<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.OleDb" %>
<script language=vb runat=server>
Sub Page_Load(Source As Object, E As EventArgs)
 Dim myConn As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0 ;Data Source=" & server.mappath("data.mdb"))
 Dim myInsertQuery As String = "insert into guest (标题, 署名, 内容) values ('" & request("title") & "', '" & request("name") & "', '" & request("body") & "')"
 Dim myOleDbCommand As New OleDbCommand(myInsertQuery)
 myOleDbCommand.Connection = myConn
 myConn.Open()
 myOleDbCommand.ExecuteNonQuery()
 myOleDbCommand.Connection.Close()
 response.redirect("guest.aspx")
end sub
</script>

4、see.asp（显示单个数据不如用ASP）
<html><head>
<style>
<!--
body{font-size:9pt}
p{font-size:9pt}
td{font-size:9pt}
//-->
</style>
<title>察看留言</title></head>
<body>
<p align=right><font size=6>察看留言</font></p>
<%
id=request("id")
set cn=server.createobject("ADODB.CONNECTION")
cn.open "DBQ=" + server.mappath("data.mdb") + ";DefaultDir=; DRIVER={Microsoft Access Driver (*.mdb)};"
set rs=server.createobject("adodb.recordset")
rs.open "select * from guest where id=" & id , cn
%>
ID:<% = id %><BR>
标题:<% = rs("标题") %><br>
署名:<% = rs("署名") %><br>
内容:<Br><% = rs("内容") %><br>
<a href="guest.aspx">返回</a>