Converting javascript strings into xml objects and interpreting them with tips _ javascript tips-js tutorial

Source: Internet
Author: User
In js, there are methods to convert strings into xml objects. If you are interested, refer to the following code snippets, you can use javasenthelper to convert strings into xml objects in java. parseText (xmlReturn ). getRootElement ();
In js, there are also ways to convert strings into xml objects. You can use the following functions:
The following is a reference clip:

The Code is as follows:


Function createXml (str ){
If (document. all ){
Var xmlDom = new ActiveXObject ("Microsoft. XMLDOM ")
XmlDom. loadXML (str)
Return xmlDom
}
Else
Return new DOMParser (). parseFromString (str, "text/xml ")
}


It is more convenient to read files on the js end.
The following is a reference clip:

The Code is as follows:


Var xmlDoc = new ActiveXObject ("Msxml2.DOMDocument. 3.0 ");
XmlDoc. async = false;
XmlDoc. load ("file path ");


Xml operations are also very simple. If jdom or dom4j is used, the operations are quite convenient.
The following is a reference clip:

The Code is as follows:


Var domxml = createXml (Http. responseText );
Var code = domxml. getElementsByTagName ("code ");
If (code. item (0). text = "100 "){
Var parameter = domxml. getElementsByTagName ("parameter ");
Identifier = parameter. item (0). attributes. getNamedItem ("value"). value;
}


The method for obtaining node values and attribute values is different.
The following Method

The Code is as follows:


// Convert string to xml
Function toXmlDom (source ){
Var xmlDoc = null;
If (window. ActiveXObject ){
Var ARR_ACTIVEX =
["MSXML4.DOMDocument", "MSXML3.DOMDocument", "MSXML2.DOMDocument", "MSXML. DOMDocument", "Microsoft. XmlDom"];
Var XmlDomflag = false;
For (var I = 0; I <ARR_ACTIVEX.length &&! XmlDomflag; I ++ ){
Try {
Var objXML = new ActiveXObject (ARR_ACTIVEX [I]);
XmlDoc = objXML;
XmlDomflag = true;
} Catch (e ){
}
}
If (xmlDoc ){
XmlDoc. async = false;
XmlDoc. loadXML (source );
}
} Else {
Var parser = new DOMParser ();
Var xmlDoc = parser. parseFromString (source, "text/xml ");
}
Return xmlDoc;
}


The Code is as follows:


// Use
Function areaChart (data ){
Var s = toXmlDom (xml); // xml is a string
$ (S). find ("area"). each (// obtain the label of each area
Function (id, item ){
Var areaCode = $ (item). find ("area_code"). eq (0). text (); // obtain the area TAG content
Var num = $ (item). find ("area_all_num"). eq (0). text ();
Var name = $ (item). find ("area_name"). eq (0). text ();
Var title = name + "," + num;
$ ("#" + AreaCode + ""). attr ("title", title );
}
);


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