JavaScript将XML转成JSON的方法

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
        }
      }
    }
  ]
}

例子：

json转换成XML后，对应的JS文件要怎么改？

$(function() {
  
 $(#logout).click(function(){
  top.location.href = "../login.html";
 });
  
 $("#tree").tree( {
  url : "../data/menu.json",
  onClick : doMenuClick
 });

 function doMenuClick(node) {
  if ($("#tree").tree("isLeaf", node.target) == false)
   return;

  var id = node.id;
  var text = node.text;
  if (!id) return;
    
  var elTab = parent.$(#mainTabs); 
  if (elTab.tabs(exists, text)) {
   elTab.tabs(select, text);
  } else {
   var url = ../TheReport/ + id + .html;
   var content = <div style="">+
     <iframe src=" + url + " scrolling="auto" style="" ></iframe></div>;

   elTab.tabs(add, {
    title : text,
    content : content,
    closable : true
   });
  }
 }
});

上面的menu.json文件改成menu.xml文件后，这些代码需要改的什么？

答案：

<?xml version="1.0" encoding="GB2312"?>
<myfile>
    <title>tttt</title>
    <author>ajie</author>
    <email>ajie@aolhoo.com</email>
    <date>20010115</date>
</myfile>

HTML/JS：

<html>
<head>
<script language="JavaScript" for="window" event="onload">
var xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
xmlDoc.async="false";
xmlDoc.load("myfile.xml");
root = xmlDoc.documentElement;
//nodes = xmlDoc.documentElement.childNodes;
document.all("title").innerText = root.childNodes.item(0).text;
document.all("author").innerText = root.childNodes.item(1).text;
document.all("email").innerText = root.childNodes.item(2).text;
document.all("date").innerText = root.childNodes.item(3).text;
</script>
<title>在HTML中调用XML数据</title>
</head>
<body bgcolor="#FFFFFF">
<b>标题: </b>
<span id="title"> </span>
<b>作者: </b>
<span id="author"></span>
<b>信箱: </b>
<span id="email"></span>
<b>日期：</b>
<span id="date"></span>
</body>
</html>

andy

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