ajax get请求.html

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>Page Title</title>
    <script>
    function loadXMLDoc(){
        var xmlhttp;
        if(window.XMlHttpRequest){

            xmlhttp=new XMLHttpRequest;
        }
        else{
            xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");

        }
        xmlhttp.onreadystatechange=function(){
            if(xmlhttp.readyState==4&&xmlhttp.status==200)
            {
                document.getElementById("myDiv").innerHTML=xmlhttp.responseText;

            }
        }
xmlhttp.open("GET","/ajax/demo_get.sap",trun);
xmlhttp.send();


    }
    
    
    </script>
  
</head>
<body>
    <h2>AJAX</h2>
    <button type="button"onclick="loadXMLDoc">请求数据</button>
    <div id="myDiv"></div>
</body>
</html>