使用 JavaScript 将 XML 转成 JSON

1. JavaScript代码如下：

// Changes XML to JSON

function xmlToJson(xml) {

     

    // Create the return object

    var obj = {};

 

    if (xml.nodeType == 1) { // element

        // do attributes

        if (xml.attributes.length > 0) {

        obj["@attributes"] = {};

            for (var j = 0; j < xml.attributes.length; j++) {

                var attribute = xml.attributes.item(j);

                obj["@attributes"][attribute.nodeName] = attribute.nodeValue;

            }

        }

    } else if (xml.nodeType == 3) { // text

        obj = xml.nodeValue;

    }

 

    // do children

    if (xml.hasChildNodes()) {

        for(var i = 0; i < xml.childNodes.length; i++) {

            var item = xml.childNodes.item(i);

            var nodeName = item.nodeName;

            if (typeof(obj[nodeName]) == "undefined") {

                obj[nodeName] = xmlToJson(item);

            } else {

                if (typeof(obj[nodeName].length) == "undefined") {

                    var old = obj[nodeName];

                    obj[nodeName] = [];

                    obj[nodeName].push(old);

                }

                obj[nodeName].push(xmlToJson(item));

            }

        }

    }

    return obj;

};

 

2. XML代码：

<ALEXA VER="0.9" URL="davidwalsh.name/" HOME="0" AID="=">
    <SD TITLE="A" FLAGS="" HOST="davidwalsh.name">
        <TITLE TEXT="David Walsh Blog :: PHP, MySQL, CSS, Javascript, MooTools, and Everything Else"/>
        <LINKSIN NUM="1102"/>
        <SPEED TEXT="1421" PCT="51"/>
    </SD>
    <SD>
        <POPULARITY URL="davidwalsh.name/" TEXT="7131"/>
        <REACH RANK="5952"/>
        <RANK DELTA="-1648"/>
    </SD>
</ALEXA>

 

 

3. JSON结果：

{
  "@attributes": {
    AID: "=",
    HOME:  0,
    URL: "davidwalsh.name/",
    VER: "0.9",
  },
  SD = [
    {
      "@attributes": {
        FLAGS: "",
        HOST: "davidwalsh.name",
        TITLE: A
      },
      LINKSIN: {
        "@attributes": {
          NUM: 1102
        }
      },
      SPEED: {
        "@attributes": {
          PCT: 51,
          TEXT: 1421
        }
      },
      TITLE: {
        "@attributes": {
          TEXT: "David Walsh Blog :: PHP, MySQL, CSS, Javascript, MooTools, and Everything Else",
        }
      },
    },
    {
      POPULARITY: {
        "@attributes": {
          TEXT: 7131,
          URL: "davidwalsh.name/"
        }
      },
      RANK: {
        "@attributes": {
          DELTA: "-1648"
        }
      },
      REACH: {
        "@attributes": {
          RANK = 5952
        }
      }
    }
  ]
}