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Code case analysis of XmlHttp asynchronously obtaining website data
- 黄舟Original
- 2017-03-27 16:59:111476browse
XmlHttp asynchronously obtains website data code case analysis
<script>
var oDiv
var xh
function getXML()
{
oDiv = document.all.m
oDiv.innerHTML = "正在装载栏目数据，请稍侯......."
oDiv.style.display= ""
xh = new ActiveXObject("Microsoft.XMLHTTP")
xh.onreadystatechange = getReady
xh.open("GET",a.value,true)
xh.send()
}
function getReady()
{
if(xh.readyState==4)
{
if(xh.status==200)
{
oDiv.innerHTML = "完成"
}
else
{
oDiv.innerHTML = "抱歉，装载数据失败。原因：" + xh.statusText
}
}
}
</script>
<body>xmlhttp asynchronous example:
URL:<input name=a value="http://bianceng.cn" style="width:600px">
<input onclick="getXML()" type="button" value="得到源代码">
<input onclick="if(xh && xh.responseText) {alert(xh.responseText);oDiv.innerHTML=xh.responseText}" type="button" value="显示源代码">
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