asp实现简单的ajax留言板实例代码-成都快上网建站

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asp实现简单的ajax留言板实例代码



index.asp
<%@ codepage=65001%>
<%
option explicit
%>
<% Response.Charset="utf-8"%>
<% Session.CodePage=65001 %>





<%
 Dim mybll
 Dim myList
 Set mybll = new BLL_Guest
 Select Case Request("tCMD")
  Case "SAVE"
   mybll.Insert()
  Case "DEL"
   mybll.Delete()
 End Select
 myList = mybll.FindByPage()
%>

客户留言




 
 


<%=myList%>

BLL_Guest.asp
<%
 '///
 '/// 摘要说明。
 '///
 Class BLL_Guest

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  Private mycom,mymod,mydal

  Private LI,UL

  Private DEL

  '获取信息
  Public Sub GetGuest()

   mydal.GetGuest(Id)

  End Sub

  '新增信息
  Public Sub Insert()

   mymod.Content = Request("content")
   mymod.re = Request("Re")
   mymod.Addtime = Now()
   mymod.Ip = request.servervariables("HTTP_X_FORWARDED_FOR")
   If len(mymod.Ip)<=0 Then mymod.Ip = request.servervariables("REMOTE_ADDR")

   Call mydal.Insert(mymod)

  End Sub

  '更新信息
  Public Sub Update()

   Call mydal.Update(mymod)

  End Sub

  '删除信息
  Public Sub Delete()

   mydal.Delete(Request("Id"))

  End Sub

  '查找信息
  Public Function FindByPage()

   Dim PageSize,CurrentPage,WhereValue,OrderValue,RecordCount
   Dim objRS
   Dim tmp1,tmp2,tmp3,parms,i
   Dim tCMD
   tCMD = Request("tCMD")
   PageSize = "8"
   CurrentPage = Request("PageNo")
   If Len(CurrentPage)<=0 Then
    CurrentPage=1
   End If
   WhereValue = ""
   OrderValue = "Id"
   Set objRS = mydal.FindByPage(PageSize,CurrentPage-1,WhereValue,OrderValue)
   i = 1
   RecordCount = mydal.Count(WhereValue)
   Do While Not objRS.EOF
    If tCMD="DEL" Then
     DEL = "删除"
    Else
     DEL = ""
    End If
    parms=Array(i,objRS("content"),objRS("ip"),objRS("addtime"),DEL)
    tmp1 = tmp1 & mycom.Format(LI,parms)
    objRs.Movenext
    i = i + 1
   Loop
   tmp3 = mycom.Page(PageSize,CurrentPage,RecordCount,"guest/index.asp?tCMD=LIST")
   parms=Array(tmp1,tmp3)
   tmp2 = tmp2 & mycom.Format(UL,parms)

   FindByPage = tmp2

  End Function

  Private Sub Class_Initialize()

   LI = "

  • {0} {1}
    作者:{2} {3} {4}
    • " & vbCrLf
       UL = "
      {0}
    • {1}
    "
       DEL = ""

       Set mycom = new Common
       set mymod = new MOD_Guest
       set mydal = new DAL_Guest

      End Sub

      Private Sub Class_Terminate()

       Set mycom = Nothing
       Set mymod = Nothing
       set mydal = Nothing

      End Sub

     End Class
    %>

    DAL_Guest.asp
    <%
     '///


     '/// 摘要说明。
     '///
     Class DAL_Guest

      Private SQL_01
      Private SQL_02
      Private SQL_03
      Private SQL_04
      Private SQL_05
      Private SQL_06
      Private SQL_07

      Private mycom,myacc,mymod

      '///


      '/// 获得信息
      '///
      '/// 判断字段
      '/// 信息体
      Public Function GetGuest(Id)

       Dim parms,SQL,objRS
       parms = Array(Id)
       SQL  = mycom.Format(SQL_01,parms)
       Set objRS = myacc.ExecuteReader(myacc.CONN_STRING,SQL)
       If  Not objRS.EOF then
        Call mymod.SetVar(objRs("Id"),objRs("Content"),objRs("Re"),objRs("Addtime"),objRs("Ip"))
        Set GetGuest = mymod
       Else
        GetGuest = Null
       End If

      End Function

      '///


      '/// 插入信息
      '///
      '/// 信息体
      Public Sub Insert(vmod)

       Dim parms,SQL
       parms = Array(vmod.Content,vmod.Re,vmod.Addtime,vmod.Ip)
       SQL  = mycom.Format(SQL_02,parms)
       Call myacc.ExecuteReader(myacc.CONN_STRING,SQL)

      End Sub

      '///


      '/// 更新信息
      '///
      '/// 信息体
      Public Sub Update(vmod)

       Dim parms,SQL
       parms = Array(vmod.Id,vmod.Content,vmod.Re,vmod.Addtime,vmod.Ip)
       SQL  = mycom.Format(SQL_03,parms)
       Call myacc.ExecuteReader(myacc.CONN_STRING,SQL)

      End Sub

      '///


      '/// 删除信息
      '///
      '/// 信息体
      Public Sub Delete(Id)

       Dim parms,SQL
       parms = Array(Id)
       SQL  = mycom.Format(SQL_04,parms)
       Call myacc.ExecuteNonQuery(myacc.CONN_STRING,SQL)

      End Sub

      '///


      '/// 统计信息
      '///
      '/// 信息体
      Public Function Count(WhereValue)

       Dim parms,SQL,objRS
       parms = Array(WhereValue)
       SQL  = mycom.Format(SQL_07,parms)
       Set objRS = myacc.Recordset(myacc.CONN_STRING,SQL)
       Count = objRS.RecordCount

      End Function

      '///


      '/// 根据条件列出所有信息(带有分页)
      '///
      '/// 每页记录数
      '/// 页码
      '/// 判断值
      '/// 排序
      '/// 返回objRS
      Public Function FindByPage(PageSize,CurrentPage,WhereValue,OrderValue)

       Dim parms,SQL,objRS
       Dim s1
       If CurrentPage="0" Then   
        s1 =  PageSize & "|" + OrderValue & "|" & WhereValue
        parms = Split(s1,"|")
        SQL = mycom.Format(SQL_05,parms)
       Else
        s1 = PageSize & "|" & OrderValue & "|" + WhereValue & "|" & CurrentPage*PageSize
        parms = Split(s1,"|")
        SQL = mycom.Format(SQL_06,parms)
       End If

       Set objRS = myacc.ExecuteReader(myacc.CONN_STRING,SQL)
       Set FindByPage = objRS

      End Function


      Private Sub Class_Initialize()

       SQL_01 = "Select * From [Guest] Where Id = {0}"
       SQL_02 = "Insert into [Guest] ([Content],[Re],[Addtime],[Ip]) values('{0}','{1}','{2}','{3}')"
       SQL_03 = "Update [Guest] Set [Content]='{1}',[Re]='{2}',[Addtime]='{3}',[Ip]='{4}' Where Id = {0}"
       SQL_04 = "Delete From [Guest] Where Id In ({0})"
       SQL_05 = "Select Top {0} * From [Guest] Where Content Like '%{2}%' Order By {1} Desc,Id Desc"
       SQL_06 = "Select Top {0} * From [Guest] Where Content Like '%{2}%' And Id Not IN(Select Top {3} Id From [Guest] Where Content Like '%{2}%' Order By {1} Desc,Id Desc) Order By {1} Desc,Id Desc"
       SQL_07 = "Select * From [Guest] Where Content Like '%{0}%' "

       Set mycom = new Common
       Set myacc = new AccHelper
       Set mymod = new MOD_Guest

      End Sub

      Private Sub Class_Terminate()

       Set mycom = Nothing
       Set myacc = Nothing
       Set mymod = Nothing

      End Sub

     End Class
    %>

    MOD_Guest.asp
    <%
     '///


     '/// 摘要说明。
     '///
     Class MOD_Guest

      Public Id
      Public Content
      Public Re
      Public Addtime
      Public Ip

      Public Sub SetVar(vId,vContent,vRe,vAddtime,vIp)
       Id=vId
       Content=vContent
       Re=vContent
       Addtime=vAddtime
       Ip=vIp
      End Sub

     End Class
    %>

    Common.asp
    <%
     '///


     '/// 摘要说明
     '///
     Class Common

      '///


      '/// 获得信息
      '///
      '/// 需要内容
      '/// 替换关键字
      '/// 格式化后内容
      Public Function Format(str,arr)

       Dim r,i
       r = str   
       For i = 0 To UBound(arr)
        r = Replace(r,"{"&i&"}",arr(i))
       Next
       Format = r

      End Function

      Public Function Page(PageSize,CurrentPage,RecordCount,PageUrl)

       const C_RECORDCOUNT = "合计{0}篇 |"
       const C_FIRSTPAGE1 = " 首页"
       const C_FIRSTPAGE2 = " 首页"
       const C_PREVPAGE1 = " 上一页"
       const C_PREVPAGE2 = " 上一页"
       const C_NEXTPAGE1 = " 下一页"
       const C_NEXTPAGE2 = " 下一页"
       const C_LASTPAGE1 = " 尾页"
       const C_LASTPAGE2 = " 尾页"
       const C_CURRENTPAGE = " 页次：{0}/{1}页"
       const C_PAGESIZE = " {0}篇/页  "
       const C_GOTOPAGE = " 跳转：  "

       Dim PageCount,pages
       Dim lRecordCount,lFirstpage,lPrevpage,lNextpage,lLastpage,lCurrentpage,lPagesize,lGotopage
       Dim p,parms

       If RecordCount Mod PageSize <> 0 Then
        pages = 1
       else
        pages = 0
       End If
       PageCount=CInt(RecordCount/PageSize + pages)

       parms=Array(RecordCount)
       lRecordCount = Format(C_RECORDCOUNT,parms)

       if CInt(CurrentPage)>1 Then
        parms=Array(Pageurl,1)
        lFirstpage = Format(C_FIRSTPAGE1,parms)
        parms=Array(Pageurl,CInt(CurrentPage)-1)
        lPrevpage = Format(C_PREVPAGE1,parms)
       Else
        lFirstpage=C_FIRSTPAGE2
        lPrevpage=C_PREVPAGE2
       End If

       if CInt(CurrentPage)    parms=Array(Pageurl,CInt(CurrentPage)+1)
        lNextpage = Format(C_NEXTPAGE1,parms)
        parms=Array(Pageurl,CInt(CurrentPage)+1)
        lLastpage = Format(C_LASTPAGE1,parms)
       Else   
        lNextpage=C_NEXTPAGE2
        lLastpage=C_LASTPAGE2
       End If

       parms=Array(CurrentPage,PageCount)
       lCurrentpage = Format(C_CURRENTPAGE,parms)
       parms=Array(PageSize)
       lPagesize = Format(C_PAGESIZE,parms)
       parms=Array(Pageurl,CurrentPage)
       lGotopage = Format(C_GOTOPAGE,parms)

       p=lRecordCount&lFirstpage&lPrevpage&lNextpage&lLastpage&lCurrentpage&lPagesize&lGotopage
       Page = p

      End Function

     End Class
    %>

    AccHelper.asp
    <%
     '///


     '/// AccHelper 的摘要说明。
     '///
     Class AccHelper

      Public CONN_STRING

      '///


      '/// 执行ExecuteNonQuery
      '///
      '/// 连接字符
      '/// sql命令
      Public Function ExecuteNonQuery(connString,cmdText)

       Dim objConn
       Set objConn = Server.CreateObject("ADODB.Connection")
       objConn.Open connString
       objConn.Execute(cmdText)

      End Function

      '///


      '/// 执行ExecuteReader
      '///
      '/// 连接字符
      '/// sql命令
      '/// RS
      Public Function ExecuteReader(connString,cmdText)

       Dim objConn,objRS
       Set objConn = Server.CreateObject("ADODB.Connection")
       objConn.Open connString
       Set objRS = objConn.Execute(cmdText)
       Set ExecuteReader = objRS

      End Function

      '///


      '/// 执行Recordset
      '///
      '/// 连接字符
      '/// sql命令
      '/// RS
      Public Function Recordset(connString,cmdText)

       Dim objConn,objRS
       Set objConn = Server.CreateObject("ADODB.Connection")
       objConn.Open connString
       Set objRS = Server.CreateObject("ADODB.RecordSet")
       objRS.Open cmdText,objConn,1,3
       Set Recordset = objRS

      End Function

      Private Sub Class_Initialize()
       CONN_STRING = "provider = microsoft.jet.oledb.4.0;data source=" & Server.Mappath("db.mdb")
      End Sub

     End Class
    %>
    ajax.js

    代码如下:


    var http_request = false;

    function makeRequest(obj,url) {

        http_request = false;

        if (window.XMLHttpRequest) { // Mozilla, Safari,...
            http_request = new XMLHttpRequest();
            if (http_request.overrideMimeType) {
                http_request.overrideMimeType('text/xml');
            }
        } else if (window.ActiveXObject) { // IE
            try {
                http_request = new ActiveXObject("Msxml2.XMLHTTP");
            } catch (e) {
                try {
                http_request = new ActiveXObject("Microsoft.XMLHTTP");
                } catch (e) {}
            }
        }

        if (!http_request) {
            alert('Giving up :( Cannot create an XMLHTTP instance');
            return false;
        }

        http_request.onreadystatechange = function()
        {
            if (http_request.readyState == 4) {
                if (http_request.status == 200) {
                    updateObj(obj,http_request.responseText);
                }
                else
                {
                    updateObj(obj,"");
                }
            }
        }
        http_request.open('GET', url, true);
        http_request.send(null);
    }

    function updateObj(obj,data){
        obj.innerHTML = data;
    }
    function $(url){
        var obj = document.getElementById("content");
        obj.style.display='block';
        document.getElementById("container").style.margin="10px auto 0px";
        obj.innerHTML = "Loading…";
        makeRequest(obj,url);
    }


    html调用方法：

    代码如下:


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