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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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