jQuery和XML问题 [英] jquery and xml issue

问题描述

我有一些xml

<entry>
    <a>a</a>
    ...
    <subelement>
        <b>b</b>
         .... 
    </subelement>
</entry>

如果我这样做$(entry).find('whatIAmLookingFor')

if I do $(entry).find('whatIAmLookingFor')

当这些元素嵌套在子元素中时，它适用于某些元素，但不适用于其他元素.

it works for some elements, but not for other elements, when those elements are nested in the subelement.

我可以做到这一点

$(entry).find('subelement').children()[indexofwhatiamlookingfor].textContent;

在Firebug中，但显然这是一个hack ...

in Firebug, but obviously this is a hack...

为什么要找到"子元素中的某些元素，而不能找到其他元素?我让另一位开发人员研究了此问题，以确保元素名称正确(没有发指的问题).

Why would 'find' find some elements in a subelement but not others? I had another developer look at this to make sure I had the element names correct (no fat finger issues).

推荐答案

jQuery无法解析XML.您可以使用以下简单函数来执行此操作，并使用jQuery在文档上执行其通常的查询工作:

jQuery doesn't parse XML. You can use the following simple function to do it and use jQuery to do its usual querying stuff on the document:

var parseXml;

if (window.DOMParser) {
    parseXml = function(xmlStr) {
        return ( new window.DOMParser() ).parseFromString(xmlStr, "text/xml");
    };
} else if (typeof window.ActiveXObject != "undefined" &&
        new window.ActiveXObject("Microsoft.XMLDOM")) {

    parseXml = function(xmlStr) {
        var xmlDoc = new window.ActiveXObject("Microsoft.XMLDOM");
        xmlDoc.async = "false";
        xmlDoc.loadXML(xmlStr);
        return xmlDoc;
    };
} else {
    parseXml = function() { return null; }
}

var xml = parseXml("<foo>Stuff</foo>");
if (xml) {
    var $xmlDoc = $(xml);
    window.alert($xmlDoc.find("foo")[0].nodeName);
}

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