標籤:undefined orm request http XML object 2.x cti name
建立非同步對象:
function createXmlHttp(){var xhobj=false;try{xhobj=new ActiveXObject("Msxml2.XMLHTTP");}catch(e){try{xhobj=new ActiveXObject("Microsoft.XMLHTTP");}catch(e2){xhobj=false;}}if(!xhobj&&XMLHttpRequest!=‘undefined‘){xhobj=new XMLHttpRequest();}return xhobj;}
Get 請求:
window.onload=function(){ document.getElementById("btnClick").onclick=function() { //第一步建立非同步對象。 var xhr=createXmlHttp(); xhr.open("get","Modify.ashx",true); xhr.setRequestHeader("If-Modified-Since",0); xhr.onreadystatechange=function(){ if(xhr.readyState==4&&xhr.status==200){ var res=xhr.responseText; document.getElementById("divMsg").innerHTML=res; } } //發送請求 xhr.send(null) };};
Post 請求:
window.onload=function(){ document.getElementById("btnReg").onclick=function(){ var xhr=createXmlHttp(); //定義一個轉的介面 var urlPara="05kjdfgsdjf.ashx" xhr.open("post",urlPara,true); xhr.setRequestHeader("Content-Type","application/x-www-form-urlencoded"); //5.0設定回呼函數。 xhr.onreadystatechange=function(){ if(xhr.readyState==4&&xhr.status==200) { var res=xhr.responseText; //處理資料 ...... } } //6.0發送請求 name=james & pwd=123 xhr.send("name="+document.getElementById("txtName").value+"&pwd="+document.getElementById("txtPwd").value); }}
JavaScript Ajax 實現學習