AjaxµÄ¼òµ¥Ó¦ÓÃ
ǰ̨´úÂ룺
<head runat="server">
<title>ÎÞ±êÌâÒ³</title>
<script src="Ajax.js" type="text/javascript"></script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input id="Name" type="text" onblur="CheckName(this.value)"/>
<br />
<div id="TipForName"></div>
</div>
</form>
</body>
</html>
"Ajax.js"ÎļþÀïÃæµÄ´úÂë
var xmlHttp;//È«¾ÖXMLHttpResquest¶ÔÏó
//Õë¶Ô²»Í¬ä¯ÀÀÆ÷£¬»ñÈ¡XMLHttpRequest¶ÔÏó
function CreateXMLHttpRequest()
{
if(window.ActiveXObject)
{
xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
}
else
{
xmlHttp=new XMLHttpResquest();
}
}
//µ¥»÷btnSayHelloʱµ÷ÓõÄJSº¯Êý
function CheckName(name)
{
//´´½¨XMLHTTPRquest¶ÔÏó
CreateXMLHttpRequest();
//Ö¸¶¨»Øµ÷º¯Êý
xmlHttp.onreadystatechange=HandleStateChange;
//´ò¿ªÇëÇó
// var s="Output.aspx?id="+name;
xmlHttp.open("POST","Output.aspx",true);
xmlHttp.setRequestHeader('Content-type','application/x-www-form-urlencoded');
//·¢ËÍÇëÇó
xmlHttp.send("id="+name);
}
//»Øµ÷º¯Êý
function HandleStateChange()
{
// alert(xmlHttp.readyState);
if(xmlHttp.readyState==4)
{
Ïà¹ØÎĵµ£º
ÕªÒª
±¾ÎĽ«Ê×ÏȽéÉÜÒ»ÏÂÎÄÕµÄд×÷±³¾°ºÍÓõ½µÄÏà¹Ø¼¼Êõ¡£È»ºó½«·Ö±ðʹÓÃÆÓËØµÄAjax¼¼ÊõºÍASP.NET AJAX¿ò¼Ü·Ö±ðʵÏÖ¾µäµÄ“Hello£¡XX”£¬Í¨¹ýÁ½¸öСÀý×Ó£¬Ê¹ÅóÓÑÃǶÔÕâ¸ö¿ò¼ÜµÄÌØµãºÍ¿ò¼ÜµÄʹÓ÷½·¨ÓÐÒ»¸ö³õ²½µÄÈÏʶ¡£
ǰÑÔ
ÎÒÏ룬Èç¹û½ñÌìÄ ......
===============ÏÂÆAjax
================
ʮһ¡¢µÚʮһ¿Î ===¡· ʹÓÃXHR¶ÔÏó·¢ËͺͽÓÊÜÊý¾Ý
a.¼ÌÐøÉÏÃæ²½Öè
2)×¢²á»Øµ÷º¯Êý,ֻдº¯ÊýÃû³Æ(Èç¹û¼ÓÁËÀ¨ºÅ£¬ÄÇô¾Í°Ñº¯Êý·µ»ØÖµ×¢²á¸ø»Øµ÷º¯Êý)
xmlHttp.onreadystatechange = callback;
3)ÉèÖÃÁ¬½ÓÐÅÏ¢
//µÚÒ»²ÎÊýÊÇHttpÇëÇó·½Ê½£¬Ò»°ãÑ¡Ôñget¡¢pos ......
¡¡[AJAX½éÉÜ]
¡¡¡¡AjaxÊÇʹÓÿͻ§¶Ë½Å±¾ÓëWeb·þÎñÆ÷½»»»Êý¾ÝµÄWebÓ¦Óÿª·¢·½·¨¡£WebÒ³Ãæ²»Óôò¶Ï½»»¥Á÷³Ì½øÐÐÖØÐ¼Ӳ㬾ͿÉÒÔ¶¯Ì¬µØ¸üС£Ê¹ÓÃAjax£¬Óû§¿ÉÒÔ´´½¨½Ó½ü±¾µØ×ÀÃæÓ¦ÓõÄÖ±½Ó¡¢¸ß¿ÉÓᢸü·á¸»¡¢¸ü¶¯Ì¬µÄWebÓû§½çÃæ¡£
¡¡¡¡Òì²½JavaScriptºÍXML£¨AJAX£©²»ÊÇʲôм¼Êõ£¬¶øÊÇʹÓü¸ÖÖÏÖÓм¼Êõ——°ü ......
/**
* Ajax²Ù×÷º¯Êý
*
* @param url -- ·þÎñÆ÷¶ËÒ³ÃæµØÖ·
* @param param -- ²ÎÊý£¬ÀàËÆ 'user=123&id=100'
* @param method -- ÇëÇó·þÎñÆ÷¶ËµÄ·½·¨,GetºÍPostÁ½ÖÖ£¬Ä¬ÈÏÊÇGET
* @param response -- ÊÇ·ñ»ñÈ¡·þÎñÆ÷¶Ë·µ»ØµÄ½á¹û£¬Ä¬ÈÏÊÇtrue
*/
function ajax( url, param, method, response ){
//set defaul ......
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<script language="javascript">
function saveUserInfo()
{
//»ñÈ¡½ÓÊÜ·µ»ØÐÅÏ¢²ã
var msg = document.getElementById("msg");
//»ñÈ¡±íµ¥¶ÔÏóºÍÓ ......