XML到JavaScript对象 [英] XML to JavaScript Object

问题描述

我正在寻找一个解析XML字符串并将其转换为JavaScript对象的JavaScript库.什么是好的?

I am looking for a JavaScript library that parses an XML string and converts it to a JavaScript object. What are some good ones?

推荐答案

解析XML并返回带有对应于xml的方案的javascript对象.具有相同名称的xml兄弟姐妹折叠为数组.即使在仅出现一个标签的情况下，具有可在arrayTags参数(标签名称字符串的数组)中找到的名称的节点也始终产生数组. arrayTags可以省略.带空格的文本节点将被丢弃.使用console.log(parseXml(myxml))探索输出

parses XML and returns a javascript object w/ a scheme that corresponds the xml. xml siblings w/ the same name are collapsed into arrays. nodes with names that can be found in the arrayTags parameter (array of tag name strings) always yeld arrays even in case of only one tag occurrence. arrayTags can be omitted. text nodes w/ only spaces are discarded. use console.log(parseXml(myxml)) to explore the output

parseXml(xml, arrayTags)
{
    var dom = null;
    if (window.DOMParser)
    {
        dom = (new DOMParser()).parseFromString(xml, "text/xml");
    }
    else if (window.ActiveXObject)
    {
        dom = new ActiveXObject('Microsoft.XMLDOM');
        dom.async = false;
        if (!dom.loadXML(xml))
        {
            throw dom.parseError.reason + " " + dom.parseError.srcText;
        }
    }
    else
    {
        throw "cannot parse xml string!";
    }

    function isArray(o)
    {
        return Object.prototype.toString.apply(o) === '[object Array]';
    }

    function parseNode(xmlNode, result)
    {
        if (xmlNode.nodeName == "#text") {
            var v = xmlNode.nodeValue;
            if (v.trim()) {
               result['#text'] = v;
            }
            return;
        }

        var jsonNode = {};
        var existing = result[xmlNode.nodeName];
        if(existing)
        {
            if(!isArray(existing))
            {
                result[xmlNode.nodeName] = [existing, jsonNode];
            }
            else
            {
                result[xmlNode.nodeName].push(jsonNode);
            }
        }
        else
        {
            if(arrayTags && arrayTags.indexOf(xmlNode.nodeName) != -1)
            {
                result[xmlNode.nodeName] = [jsonNode];
            }
            else
            {
                result[xmlNode.nodeName] = jsonNode;
            }
        }

        if(xmlNode.attributes)
        {
            var length = xmlNode.attributes.length;
            for(var i = 0; i < length; i++)
            {
                var attribute = xmlNode.attributes[i];
                jsonNode[attribute.nodeName] = attribute.nodeValue;
            }
        }

        var length = xmlNode.childNodes.length;
        for(var i = 0; i < length; i++)
        {
            parseNode(xmlNode.childNodes[i], jsonNode);
        }
    }

    var result = {};
    for (let i = 0; i < dom.childNodes.length; i++)
    {
        parseNode(dom.childNodes[i], result);
    }

    return result;
}

这篇关于XML到JavaScript对象的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！