JavaScript XML Operations Encapsulation class _javascript Tips

Copy Code code as follows:

function Xmlobject ()
{
This.isie=true;
if (window. ActiveXObject) {isie=true;} Else{isie=false;}
var node_xml;
var xmldoc;
if (Isie) {
xmldoc = new ActiveXObject ("Msxml2.domdocument");
}
else{
if (document.implementation && document.implementation.createDocument) {
xmldoc = Document.implementation.createDocument ("", "", null);
}
}
Xmldoc.async = false;
Xmldoc.resolveexternals = false;
Xmldoc.validateonparse = false;
Xmldoc.preservewhitespace = true;
To create an XML object (XML string) from a string
This. Loadxmlforstring=function (XMLSTR)
{
if (Isie)
{
Xmldoc.loadxml (XMLSTR);
}
Else
{
var oparser = new Domparser ();
xmldoc = oparser.parsefromstring (Xmlstr, "text/xml");
}
}
Create an XML file (file path) from an external file
This.getxmlforurl=function (URL)
{
Xmldoc.load (URL);
if (Isie) {
Xmldoc.load (URL);
}
Else
{
xmldoc = GetXML (URL). responsexml;
}
}
Get node byte point
This.getxmlarray=function (name) {
var keys = name.split ('. ');
var node = xmldoc.documentelement; Get root node
var Rtn = new Array ();
var n = 0;
for (var i=0; i<keys.length; i++) {
var childs = Node.childnodes; Get child node
var key = Keys[i];
for (var k=0; k<childs.length; k++) {
var child = Childs[k];
if (Child.nodename = = key) {//To determine whether the child nodes are compliant
if (i = = keys.length-1) {
Rtn[n] = child;
n++;
} else {
node = child;
Break
}
}
}
}
Node_xml=rtn;
return RTN;
}
Get node Content
This.getnodevalue=function (name)
{
Return This.getvalue (Xmldoc,name);
}
Get node contents of nodes according to node
This.getvalue=function (node, name)
{
var keys = name.split ('. ');
for (var i=0; i<keys.length; i++)
{
var childs = Node.childnodes; Get child node
var key = Keys[i];
for (var k=0; k<childs.length; k++)
{
var child = Childs[k];
if (Child.nodename = = key)
{//Determine if child nodes are compliant
if (child.childNodes.length = 1)
{
If there is no byte point, the return value
if (!window. ActiveXObject)
{
return childs[k].textcontent;
}
Else
{
Return Childs[k].text
}
}
Else
{
and sub nodes, continue profiling
node = child;
Break
}
}
}
}
Return "";
}
function Getxmlhttp ()
{
var xmlhttp;
if (window. ActiveXObject) {
Try{xmlhttp=new ActiveXObject ("Msxml2.xmlhttp");}
catch (e) {xmlhttp=new ActiveXObject ("Microsoft.XMLHTTP");}
}else if (window. XMLHttpRequest)
{xmlhttp=new XMLHttpRequest ();}
return XMLHTTP;
}
function GetXML (URL) {
var xmlhttp=getxmlhttp ();
if (xmlhttp!=null) {
Xmlhttp.open ("Get", url,false);
Xmlhttp.send (NULL);
}else{
Alert ("Your browser does not support xmlhttp.11");
return false;
}
return xmlHttp;
}
}

Invoke Method Demo

Copy Code code as follows:

var strxml= "<?xml version= ' 1.0 encoding= ' utf-8 '?><ekuy><user><name><cnname> ' Little Piggy </ cnname></name><age>27</age></user><user><name><cnname> Xiao Xia </ Cnname></name><age>26</age></user><user><name><cnname> Small Chapter </ Cnname></name><age>25</age></user></ekuy> ";

var xmlobj=new xmlobject ();
Xmlobj.loadxmlforstring (Strxml)
Xmlobj.getxmlforurl ("Test.xml");

var list = Xmlobj.getxmlarray (' user ');//Get node

document.write (Xmlobj.getnodevalue (' ekuy.user.name.cnname '))/direct access to node content

The loop node gets the contents of the node node
for (var i=0; i<list.length; i++) {
var obj = list[i];
document.write (Xmlobj.getvalue (obj, ' name.cnname '));
document.write (Xmlobj.getvalue (obj, ' age '));
document.write (' <br\/> ');
}

Oh written not how everyone laughed very simple function