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關(guān)于XMLHTTP和XML實(shí)現(xiàn)無(wú)刷新提交
關(guān)于XMLHTTP和XML實(shí)現(xiàn)無(wú)刷新提交



HTML頁(yè)面
<script language="javascript">
function chkform()
{
  if(form1.UserName.value=="")
  {
    alert("真實(shí)姓名不能為空!");
    form1.UserName.focus();
    return false;
  }
  if(form1.Password.value=="")
  {
    alert("電話號(hào)碼不能為空!");
    form1.Password.focus();
    return false;
  }
  saveData();
}
        
function saveData()
{
  var objDom = new ActiveXObject("MSXML2.DOMDocument");
  objDom.loadXML("<Root/>");

  oGeneral = objDom.createElement("username");
  oGeneral.text=form1.UserName.value;
  objDom.documentElement.appendChild(oGeneral);

  oGeneral = objDom.createElement("password");
  oGeneral.text=form1.Password.value;
  objDom.documentElement.appendChild(oGeneral);

  var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
  xmlhttp.open("post","submit\\checklogin.asp",false);
  xmlhttp.send(objDom);
  if(xmlhttp.responseText=="True"){
  window.location="main.asp";
  }
  else
  {
    alert(unescape(xmlhttp.responseText));
  }
}
</script>
<form name="form1" method="post">
用戶名稱:<input name="UserName"  type="text">
用戶密碼:<input name="Password"  type="password">
<img src="3.jpg" width="240" height="82" onClick="javascript:chkform()" style="cursor:hand">
</from>




submit\checklogin.asp頁(yè)面內(nèi)容
<!--#include file="../include/const.asp"-->
<!--#include file="../include/Function.asp"-->
<!--#include file="../include/MD5.asp"-->
<%
on error resume next
‘------------------------------------------------------------------
‘---------------------讀取XML對(duì)象----------------------------------
‘------------------------------------------------------------------
dim username,password
set XmlDom = server.CreateObject("Msxml2.domdocument")
XmlDom.async = False 
XmlDom.load(request)
If XmlDom.parseError.errorCode<>0 Then
    response.Write ("Flase")
    response.End()
End If
username = XmlDom.selectSingleNode("http://username").text
password = XmlDom.selectSingleNode("http://password").text
set XmlDom = nothing
‘------------------------------------------------------------------
‘Response.Write username&password
‘Response.End()


dim errmsg
set rs=server.createobject("adodb.recordset")
rs.ActiveConnection = strConn
rs.Source = "select * from  admin where username=‘"&username&"‘"
rs.CursorType = 1
rs.CursorLocation = 2
rs.LockType = 3
rs.open()
if     rs.recordcount = 1 then
    if rs.Fields.Item("password").Value=MD5(trim(password)) then
        if rs.Fields.Item("isclock").Value=1 then
            Randomize()
            Login_code=Hour(Now()) & Minute(Now()) & Second(Now()) & Int(Rnd()*1000000)
            ‘Response.Write(Login_code)
            ‘Response.End()
            Response.Cookies(All_cookiesName)("ID")=rs.Fields.Item("cmp_id").Value
            Response.Cookies(All_cookiesName)("username")=rs.Fields.Item("username").Value
            Response.Cookies(All_cookiesName)("password")=rs.Fields.Item("password").Value
            Response.Cookies(All_cookiesName)("state")=rs.Fields.Item("state").Value
            Response.Cookies(All_cookiesName)("Login_code")=Login_code
            if Cookies_Expires <> 0 then
                Response.Cookies(All_cookiesName).Expires=Cookies_Expires
            end if
            if Cookies_Domain <> "" then
                Response.Cookies(All_cookiesName).Domain=Cookies_Domain
            end if
            rs("Login_code")=Login_code
            rs.update()
            rs.close()
            set rs = nothing
            Response.Write("True")
            Response.End()
        else
            Response.Write escape("您的用戶名已經(jīng)被鎖定,\n請(qǐng)向管理申請(qǐng)解鎖!")
            Response.End()
        end if
    else
        Response.Write escape("您輸入的密碼錯(cuò)誤!")
        Response.End()
    end if
else
    Response.Write escape("您輸入的用戶名不存在!")
    Response.End()
end if
if err.number<>0 then Response.Write escape("不知明錯(cuò)誤!")
%>



這個(gè)是個(gè)最基本的,當(dāng)然我們也可以根據(jù)特定的需要寫成公共函數(shù),把所有的FORM表單里全部VALUE全部給生成XML對(duì)象,然后再對(duì)其操作。
var yaya="";
            var checkboxname="";
            var radioname="";
                var objDom = new ActiveXObject("MSXML2.DOMDocument");
            objDom.loadXML("<Root/>");
            for(var i=0;i<frm.elements.length;i++)
            {
                if((frm.elements.type=="text")||(frm.elements.type=="hidden"))
                {
                    oGeneral = objDom.createElement(frm.elements.name);
                    oGeneral.text=unescape(trim(frm.elements.value));
                    objDom.documentElement.appendChild(oGeneral);
                }
                if(frm.elements.tagName=="SELECT")
                {
                    oGeneral = objDom.createElement(frm.elements.name);
                    oGeneral.text=unescape(frm.elements.options[frm.elements.selectedIndex].value);
                    objDom.documentElement.appendChild(oGeneral);
                }
                if(frm.elements.tagName=="TEXTAREA")
                {
                    oGeneral = objDom.createElement(frm.elements.name);
                    oGeneral.text=unescape(trim(frm.elements.value));
                    objDom.documentElement.appendChild(oGeneral);
                }
                if(frm.elements.type=="checkbox")
                {
                    if(checkboxname!=frm.elements.name)
                    {
                        for(var j=0;j<document.getElementsByName(frm.elements.name).length; j++)
                        {
                            if(document.getElementsByName(frm.elements.name)[j].checked)
                            {
                                yaya=yaya + document.getElementsByName(frm.elements.name)[j].value + "," ;
                            }
                        }
                        yaya=yaya.substring(0,yaya.length-1);
                        oGeneral = objDom.createElement(frm.elements.name);
                        oGeneral.text=yaya;
                        objDom.documentElement.appendChild(oGeneral);
                        checkboxname=frm.elements.name;
                        yaya="";
                    }
                }
                if(frm.elements.type=="radio")
                {
                    if(radioname!=frm.elements.name)
                    {
                        for(var j=0;j < document.getElementsByName(frm.elements.name).length;j++)
                        {
                            if(document.getElementsByName(frm.elements.name)[j].checked)
                            {
                                yaya=document.getElementsByName(frm.elements.name)[j].value;
                                break;
                            }
                        }
                        oGeneral = objDom.createElement(frm.elements.name);
                        oGeneral.text=yaya;
                        objDom.documentElement.appendChild(oGeneral);
                        radioname=frm.elements.name;
                        yaya="";
                    }
                }
            }
            alert(objDom.xml);
            var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
            xmlhttp.open("post",frm.action,false);
            xmlhttp.send(objDom);
            if(xmlhttp.responseText=="True"){
                //這里就是操作成功
            }
            else{
                alert(unescape(xmlhttp.responseText));
            }


frm為傳遞進(jìn)來(lái)的form對(duì)象,這個(gè)需要放在一個(gè)函數(shù)里傳遞進(jìn)去frm
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