今天看了David Walsh一篇把XML格式转换为JSON格式的文章，感觉不错，简单的转载了过来。
下面是神奇的XML转JSON的javascript代码：
// 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;
};
下面的XML为：
<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>
通过上面的函数转换后的JSON为：
{
@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,and Everything Else,
}
},
{
POPULARITY: {
@attributes: {
TEXT: 7131,
URL: davidwalsh.name/
}
},
RANK: {
@attributes: {
DELTA: -1648
}
},
REACH: {
@attributes: {
RANK = 5952
}
}
}
]
}
原文地址：Convert XML to JSON with JavaScript
