Ajax+Asp源代码]读取数据库内容的表格(没有用框架)第1/2页

'下面这个Sub 是延迟用于调试ajax的loading
<% 
Sub TimeDelaySeconds(DelaySeconds) 
SecCount = 0 
Sec2 = 0 
While SecCount < DelaySeconds + 1 
Sec1 = Second(Time()) 
If Sec1 <> Sec2 Then 
Sec2 = Second(Time()) 
SecCount = SecCount + 1 
End If 
Wend 
End Sub 
TimeDelaySeconds(0)
%> 

<%
Response.Expires = -9999 
Response.AddHeader "Pragma","no-cache"
Response.AddHeader "cache-ctrol","no-cache"
Response.Charset = "GB2312"

Set conn = Server.CreateObject("ADODB.Connection")
connstr="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Server.MapPath("Database.mdb")
conn.Open connstr
%>

<%
set rs = server.createobject("adodb.recordset")
Sqlstr = "select * from UserData order by id"
rs.open Sqlstr,conn,1,1
rs.PageSize = 3
AllPage = rs.PageCount

Page = request.QueryString ("page")

'***********************判断
if cint(page) =< 1 then
Page = 1
elseif cint(page) >= rs.PageCount then
Page = rs.PageCount
else
intpage = cint(page)
end if
'***************************

rs.AbsolutePage=page

Response.write AllPage&","&rs.AbsolutePage&","

for i = 1 to rs.PageSize
if rs.EOF or rs.BOF then exit for
Response.write rs(0)&","&rs(1)&","&rs(2)&","&rs(3)&","
rs.movenext
next

rs.close
Set rs = nothing
%>

var request = false;
//------------------判断浏览器并建立对象----------------------------------------------------------------
try {                                                                    //尝试创建 XMLHttpRequest 对象
    request = new XMLHttpRequest();                                         //---此对象将兼容除IE外大部分浏览器!
}                                                                         //-
catch (trymicrosoft) {                                                     //如果失败    catch (trymicrosoft)

try {                                                                     //尝试使用较新版IE兼容的对象（Msxml2.XMLHTTP） 
    request = new ActiveXObject("Msxml2.XMLHTTP");                         //---此对象将兼容老版本IE
}                                                                          //-
catch (othermicrosoft) {                                                 //如果失败    catch (othermicrosoft)

try {                                                                     //尝试使用较老版IE兼容的对象（Microsoft.XMLHTTP）
    request = new ActiveXObject("Microsoft.XMLHTTP");                     //---此对象将兼容新版本IE
}                                                                          //-
catch (failed) {                                                         //如果失败    catch (failed)
    request = false;                                                     //request = false
    alert("Object Error!");
    }
  }
}
defaultPages();
//-------------------------------------------------------------------------------------------------------------*/


//**********读取数据***********************************************************

function defaultPages() {
    var url = "Demo.asp";
    request.open("GET", url, true);                                        //open方法 （"方式",url,是否异步）
    request.onreadystatechange = updatePage;                            //判断服务器处理的结果
    request.send(null);                                                    //送出.
}

function selectPages(Method,Pages) {

    //先删除以前的数据
    for(i=0;i<3;i++)
    document.getElementById("MyTable").deleteRow();
    //----------------

    if (Method == "Previous"){
    var PageTemp = document.getElementById("PageNow").value;
    var PageNow = parseInt(PageTemp)-1;

    //alert (PageNow);//debug

    var url = "Demo.asp?Page="+PageNow;
    request.open("GET", url, true);    
    request.onreadystatechange = updatePage;
    request.send(null);
    }

    else if (Method == "Next"){
    var PageTemp = document.getElementById("PageNow").value;
    var PageNow = parseInt(PageTemp)+1;

    //alert (PageNow);//debug

    var url = "Demo.asp?Page="+PageNow;
    request.open("GET", url, true);    
    request.onreadystatechange = updatePage;
    request.send(null);
    }    
}

//***********服务器是否处理完成.**********************************************************************************

function updatePage() {
    if (request.readyState <= 3){                                        //小于或等于状态3----loading.
        document.getElementById("Status").innerHTML = "Loading...";    
        document.getElementById("Pages").innerHTML = "Previous│Next";
    }

    if (request.readyState == 4){                                        //状态4----完成.
    if (request.status == 200) {                                         //如果http状态为200--当成功获取获取数据.
        requestAllright();
    }else{                                                            //如果http状态为404--http报错.
        document.getElementById("Status").innerHTML = "Error:" + request.status;
        document.getElementById("Pages").innerHTML = "Previous│Next";
    }
    }
}

//***********处理完成-生成数据.**********************************************************************************

function requestAllright() {
    var getStr = request.responseText;
    var getValue = getStr.split(",");
    var PageCount = getValue[0];
    var PageNow = getValue[1];

    var Contact = [
    [getValue[2],getValue[3],getValue[4],getValue[5]],
    [getValue[6],getValue[7],getValue[8],getValue[9]],
    [getValue[10],getValue[11],getValue[12],getValue[13]]
    ];

    for (var List=0;List<Contact.length;List++){
      var MyTr = MyTable.insertRow();                                         //创建Tr标签                                             
      for (var Cell=0;Cell<Contact[List].length;Cell++){                     //Td循环
      var MyTd = MyTr.insertCell();                                             //创建Td标签
      MyTd.innerHTML = Contact[List][Cell];                                     //给Td标签插入内容
        if (Cell == 0)                                                         //如果当前为每行的第一个Td                                 
        MyTd.id = "Number";                                                    //赋予其ID为Number
      }    
    }

//上一页下一页处的判断,是否可以点击******************************************************************************************
    if (PageNow == PageCount){
    document.getElementById("Pages").innerHTML = "<a href=javascript:selectPages('Previous','0'); target=_self class=pagesTag>Previous</a>│Next"
    }
    else if (PageNow == 1){
    document.getElementById("Pages").innerHTML = "Previous│<a href=javascript:selectPages('Next','0'); target=_self class=pagesTag>Next</a>"
    }
    else if (PageNow != 1 || PageNow != PageCount){
    document.getElementById("Pages").innerHTML = "<a href=javascript:selectPages('Previous','0'); target=_self class=pagesTag>Previous</a>│<a href=javascript:selectPages('Next','0'); target=_self class=pagesTag>Next</a>"
    }
//上一页下一页处的判断,是否可以点击******************************************************************************************

    document.getElementById("PageCount").value = PageCount;
    document.getElementById("PageNow").value = PageNow;
    document.getElementById("Status").innerHTML = "Done with!";

    //alert(PageCount);//debug
    //alert(PageNow);//debug

}