How to parse xml with namespaces using JQuery (and working for all browser .. )?

问题

I need to parse an XML response from a web service using JQuery

http://code.jquery.com/jquery-1.11.0.min.js

Here you are a sample of my XML

<?xml version='1.0' encoding="ISO-8859-1" ?>
<wfs:FeatureCollection
   xmlns:ms="http://mapserver.gis.umn.edu/mapserver"
   xmlns:wfs="http://www.opengis.net/wfs"
   xmlns:gml="http://www.opengis.net/gml"
   xmlns:ogc="http://www.opengis.net/ogc"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.0.0/WFS-basic.xsd 
                       http://mapserver.gis.umn.edu/mapserver http://wms.pcn.minambiente.it/ogc?map=/ms_ogc/wfs/Numeri_Civici_2012.map&amp;SERVICE=WFS&amp;VERSION=1.0.0&amp;REQUEST=DescribeFeatureType&amp;TYPENAME=IN.NUMERICIVICI.2012&amp;OUTPUTFORMAT=XMLSCHEMA">
      <gml:boundedBy>
        <gml:Box srsName="EPSG:4326">
            <gml:coordinates>7.700007,44.802147 7.749396,44.849996</gml:coordinates>
        </gml:Box>
      </gml:boundedBy>
    <gml:featureMember>
      <ms:IN.NUMERICIVICI.2012 fid="IN.NUMERICIVICI.2012.2728384">

        <gml:boundedBy>
            <gml:Box srsName="EPSG:4326">
                <gml:coordinates>7.735138,44.810267 7.735138,44.810267</gml:coordinates>
            </gml:Box>
        </gml:boundedBy>
        <ms:boundary>
        <gml:Point srsName="EPSG:4326">
          <gml:coordinates>7.735138,44.810267</gml:coordinates>

        </gml:Point>
        </ms:boundary>
        <ms:id>13800026457291</ms:id>
        <ms:nome>Borgata Tetti Sotto</ms:nome>
        <ms:civico>16</ms:civico>
        <ms:istat>01004041</ms:istat>
        <ms:cap>12030</ms:cap>

        <ms:comune>CARAMAGNA PIEMONTE</ms:comune>
        <ms:nome_ted> </ms:nome_ted>
        <ms:provincia>CUNEO</ms:provincia>
        <ms:regione>PIEMONTE</ms:regione>
      </ms:IN.NUMERICIVICI.2012>
    </gml:featureMember>
    <gml:featureMember>

      <ms:IN.NUMERICIVICI.2012 fid="IN.NUMERICIVICI.2012.2736621">
        <gml:boundedBy>
            <gml:Box srsName="EPSG:4326">
                <gml:coordinates>7.735397,44.812403 7.735397,44.812403</gml:coordinates>
            </gml:Box>
        </gml:boundedBy>
        <ms:boundary>
        <gml:Point srsName="EPSG:4326">

          <gml:coordinates>7.735397,44.812403</gml:coordinates>
        </gml:Point>
        </ms:boundary>
        <ms:id>13800026457290</ms:id>
        <ms:nome>Borgata Tetti Sotto</ms:nome>
        <ms:civico>25</ms:civico>
        <ms:istat>01004041</ms:istat>

        <ms:cap>12030</ms:cap>
        <ms:comune>CARAMAGNA PIEMONTE</ms:comune>
        <ms:nome_ted> </ms:nome_ted>
        <ms:provincia>CUNEO</ms:provincia>
        <ms:regione>PIEMONTE</ms:regione>
      </ms:IN.NUMERICIVICI.2012>

    </gml:featureMember>

I have to extract in some js variables these fields:

ms:nome
ms:civico
ms:istat
ms:cap
ms:comune

I need also to be sure that my code works right on IE, Firefox and Chrome.

I've seen and tried several solutions that I've found here in SO but none work.

Any suggestion is very appreciated!

Thank you very much in advance!!

Cesare

回答1:

You can iterate through the XML elements using jQuery and find(), just like with HTML. When specifying tag names to select, you need to omit the namespace prefix in the selector.

var xmlText = $('#featureData').text(),
    $xmlData = $.parseXML(xmlText),
    $features = $('featureMember', $xmlData),
    extractedFeatures = [];

$features.each(function () {
    var $this = $(this),
        feature = {},
        items = [
            'nome',
            'civico',
            'istat',
            'cap',
            'comune'
        ],
        item;

    for (var i = 0; i < items.length; i++) {
        item = items[i];
        feature[item] = $this.find(item).text();
    }

    extractedFeatures.push(feature);
});

$('#output').text(JSON.stringify(extractedFeatures));

See the jsFiddle reproduction here