How to use Ajax to read data in XML format
This article introduces the relevant knowledge of "how to use Ajax to read data in XML format". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!
The code is as follows:
Ajax Hello World
Var xmlHttp
Function createXMLHttpRequest () {
If (window.ActiveXObject) {
XmlHttp = new ActiveXObject ("Microsoft.XMLHTTP")
}
Else if (window.XMLHttpRequest) {
XmlHttp = new XMLHttpRequest ()
}
}
Function startRequest () {
CreateXMLHttpRequest ()
Try {
XmlHttp.onreadystatechange = handleStateChange
XmlHttp.open ("GET", "data.xml", true)
XmlHttp.send (null)
} catch (exception) {
Alert ("the resource you want to access does not exist!")
}
}
Function handleStateChange () {
If (xmlHttp.readyState = = 4) {
If (xmlHttp.status = = 200 | | xmlHttp.status = = 0) {
/ / get the DOM object of XML
Var xmlDOM = xmlHttp.responseXML
/ / get the root of the XML document
Var root = xmlDOM.documentElement
Try
{
/ / get the result
Var info = root.getElementsByTagName ('info')
/ / display the returned result
Alert ("responseXML's value:" + info [0] .firstChild.data)
} catch (exception)
{
}
}
}
}
Server.xml
The code is as follows:
Hello world!
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