两种Ajax请求方法示例-优快云博客

本文链接：https://blog.youkuaiyun.com/iteye_920/article/details/82645240

方法一：

<html>
<head>
<script type="text/javascript">
function loadXMLDoc()
{
var xmlhttp;
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
xmlhttp.onreadystatechange=function()
  {
  if (xmlhttp.readyState==4 && xmlhttp.status==200)
    {
    data=xmlhttp.responseText;
    alert(data)
    console.log(data)
    }
  }
xmlhttp.open("GET","http://192.168.139.215:8000/index/",true);
xmlhttp.send();
}
</script>
</head>
<body>

<h2>AJAX</h2>
<button type="button" onclick="loadXMLDoc()">request</button>
<div id="myDiv"></div>

</body>
</html>

方法二：

<head>
<script src="/my/jquery-2.1.1.min.js"></script>   //（有此文件才 可以使用Ajax）
<script type="text/javascript">
alert("aaa")
function sub() {
$.ajax({
type: 'get',
//dataType: 'json',
url:'http://192.168.139.215:8000/index/',
success: function(msg) {
alert("success")
},
error: function() {  alert("failed")}
})
}
</script>
<body>
<input type="button" id="wo" name="zou" value="huiying" onclick="sub()"/>
</body>

</html>