Ajax+ASP和Flash+ASP数据读取取方法有些相似

 Ajax+ASP和Flash+ASP数据存取方法两种数据存取方法差不多。===============================下面是一个ChatRoom的Ajax部分代码:var ajaxHttpRequest = false;function ajaxInit() { if(window.XMLHttpRequest) { //Mozilla, Opera, ...  ajaxHttpRequest = new XMLHttpRequest();  if(ajaxHttpRequest.overrideMimeType) {   ajaxHttpRequest.overrideMimeType("text/xml");  } } else if(window.ActiveXObject) { //IE  try{   ajaxHttpRequest = new ActiveXObject("Msxml2.XMLHTTP");  }  catch(e) {   try{    ajaxHttpRequest = new ActiveXObject("Microsoft.XMLHTTP");   }   catch(e) {   }  } } if(!ajaxHttpRequest) {  window.alert("不能创建XMLHttpRequest对象实例");  return false; }}

function ajaxSendPost(url, values, processRequest) { ajaxHttpRequest.open("POST",url,true); ajaxHttpRequest.setRequestHeader("Content-Type","application/x-www-form-urlencoded"); ajaxHttpRequest.send(values); ajaxHttpRequest.onreadystatechange = processRequest;}/*function ajaxSendGet(url) { ajaxHttpRequest.open("GET",url,true); ajaxHttpRequest.send(null); ajaxHttpRequest.onreadystatechange = processRequest;}*/ajaxInit();

var sound = false;var isMove = true;

function send() { var msg=escape((document.getElementById("msg")).value); //escape解决Ajax中文筹码问题 if(msg=="") {  setSuggest("请输入内容"); } else {  var color = document.getElementById("selectColor").value;  var values = "msg=" + msg + "&color=" + color;  ajaxSendPost("process.asp", values, processSendRequest);  document.getElementById("msg").value = "";  document.getElementById("msg").focus(); }}

function processSendRequest() { if(ajaxHttpRequest.readyState==4) {  if(ajaxHttpRequest.status==200) {   if(ajaxHttpRequest.responseText!="") {    var chatContent = document.getElementById("chat_content");    var msgDiv = document.createElement("div");    msgDiv.innerHTML = ajaxHttpRequest.responseText;    chatContent.appendChild(msgDiv);    sound = true;   }  }  else {   setSuggest("您请求的页面有异常");   //alert("您请求的页面有异常");  } }}

function getAllMsg() { setSuggest(" "); ajaxSendPost("process.asp","",processSendRequest); if(sound) {  setSuggest("<embed type=/"application/x-mplayer2/" src=/"sound/message.wav/"

autostart=/"true/" loop=/"false/" height=0 width=0 /> ");  sound=false; }}

function IamComing() { ajaxSendPost("iamcoming.asp", "", processSendRequest); (document.getElementById("msg")).focus();}

function showOnline() { ajaxSendPost("showOnline.asp", "", processShowOnline);}

function processShowOnline() { if(ajaxHttpRequest.readyState==4) {  if(ajaxHttpRequest.status==200) {   if(isFinite(ajaxHttpRequest.responseText)) {    document.getElementById("online").innerHTML =

ajaxHttpRequest.responseText;   }  } }}=================================下面是我一个Flash留言的数据读取的部分代码: http://www.linjimu.com.cn/Flash ls = new LoadVars();ls.Action = "Read";ls.CurrentPage = _root.CurrentPage;//ls load and send ,ld load result;ld = new LoadVars();ls.sendAndLoad("Advice.asp", ld, "post");_root.gotoAndPlay("Wait");_root.WaitBtText = "返回留言";_root.Frame = "Send";_root.TextMessage.text = "/n  正在读取留言数据.../n/n  请稍后...";ld.onLoad = function(ok) { if (ok) {  if (this.message == "OK") {   _root.gotoAndPlay("ListView");  } else {   _root.gotoAndPlay("Wait");   _root.WaitBtText = "返回留言";   _root.Frame = "Send";   _root.TextMessage.text = "  读取数据不成功!/n/n  可能发生以下错误:/n  1.

读取数据超时,请稍后再试./n  2.空间不支持ASP."+this.message;  } } else {  _root.gotoAndPlay("Wait");  _root.WaitBtText = "返回留言";  _root.Frame = "Send";  _root.TextMessage.text = "  读取数据不成功!/n/n  可能发生以下错误:/n  1.读取数据

超时,请稍后再试./n  2.空间不支持ASP."; }};delete ls;stop();================相比一下，他们都有相似之处：AJax:ajaxHttpRequest.open("POST",url,true);//发送数据的方法，类型,url地址..ajaxHttpRequest.setRequestHeader("Content-Type","application/x-www-form-urlencoded");ajaxHttpRequest.send(values);//发送数据ajaxHttpRequest.onreadystatechange = processRequest; //processRequest是一个过程函数,对返回数据的

处理。--------Flash:ls = new LoadVars();ls.Action = "Read";//是发送数据ls.CurrentPage = _root.CurrentPage;//是发送数据//ls load and send ,ld load result;ld = new LoadVars();ls.sendAndLoad("Advice.asp", ld, "post");//发送数据的方法，类型,url地址..ld.onLoad = function(ok) {//code...} //也是一个过程函数，对返回数据的处理。

不过，在web方面，Ajax的页面完全基于HTML，文本网页会更有利于搜索引擎的搜索。Flash开发人员还是偏重图形、动画设计，Flash能够更容易的调用浏览器以外的外部资源。比如摄像头、麦克风等。然而这是普通的HTML无法完成的。

他们的关系请去baidu一下:flash与AJAX http://www.baidu.com/s?wd=flash+ajax