js 读取xml ,无法获取未定义或 null 引用的属性“documentElement”

桦世兵权 2014-11-12 05:22:59

下面贴代码
book.xml
----------------------------------------------------------------------------------------------
<?xml version="1.0" encoding="GB2312" ?>
<bookstore>
<book category="children">
<title lang="en">Harry Potter</title>
<author>J K. Rowling</author>
<year>2005</year>
<price>29.99</price>
</book>
<book category="cooking">
<title lang="en">Everyday Italian</title>
<author>Giada De Laurentiis</author>
<year>2005</year>
<price>30.00</price>
</book>
<book category="web" cover="paperback">
<title lang="en">Learning XML</title>
<author>Erik T. Ray</author>
<year>2003</year>
<price>39.95</price>
</book>
<book category="web">
<title lang="en">XQuery Kick Start</title>
<author>James McGovern</author>
<author>Per Bothner</author>
<author>Kurt Cagle</author>
<author>James Linn</author>
<author>Vaidyanathan Nagarajan</author>
<year>2003</year>
<price>49.99</price>
</book>
</bookstore>

loadxmldoc.js
----------------------------------------------------------------------------------------------
function loadXMLDoc(dname)
{
try //Internet Explorer
{
//xmlDoc=new ActiveXObject("Microsoft.XMLHTTP");
xmlHttp = new ActiveXObject("Microsoft.XMLDOM");
}
catch(e)
{
try //Firefox, Mozilla, Opera, etc.
{
xmlDoc=document.implementation.createDocument("","",null);
}
catch(e) {alert(e.message)}
}
try
{
xmlDoc.async=false;
xmlDoc.load(dname);
return(xmlDoc);
}
catch(e) {alert(e.message)}
return(null);
}

book.html
---------------------------------------------------------------------------------------------------------------------------
<html>
<head>
<script type="text/javascript" src="loadxmldoc.js"></script>
</head>
<body>

<script type="text/javascript">
xmlDoc=loadXMLDoc("books.xml");

alert(xmlDoc.documentElement.childNodes);
x=xmlDoc.documentElement.childNodes;
for (i=0;i<x.length;i++)
{
if (x[i].nodeType==1)
{
document.write(x[i].nodeName);
document.write("<br />");
y=x[i].childNodes;
for (j=0;j<y.length;j++)
{
if (y[j].nodeType==1)
{
document.write(y[j].nodeName);
document.write(": ");
document.write(y[j].childNodes[0].nodeValue);
document.write("<br />");
}
}
document.write("<br />");
}
}
</script>
</body>
</html>

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Go 旅城通票 2014-11-13

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引用 7 楼 u010782160 的回复:

[quote=引用 6 楼 showbo 的回复:] 没问题啊。。你的变量申明有问题是真的 //xmlDoc=new ActiveXObject("Microsoft.XMLHTTP"); xmlHttp = new ActiveXObject("Microsoft.XMLDOM"); //xmlDoc=new ActiveXObject("Microsoft.XMLHTTP"); xmlDoc = new ActiveXObject("Microsoft.XMLDOM");

额这个小问题我后面改了，但是打开还是会出现Object#<Document>has no method 'load' [/quote] 什么浏览器，谷歌document.implementation.createDocument没有load方法。只能在firefox，opera下使用谷歌需要XMLHttpRequest对象来加载xml对象

usecf 2014-11-13

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加载xml需要在服务器端运行的

孟子E章 2014-11-12

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alert(xmlDoc.childNodes);

桦世兵权 2014-11-12

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引用 6 楼 showbo 的回复:

没问题啊。。你的变量申明有问题是真的 //xmlDoc=new ActiveXObject("Microsoft.XMLHTTP"); xmlHttp = new ActiveXObject("Microsoft.XMLDOM"); //xmlDoc=new ActiveXObject("Microsoft.XMLHTTP"); xmlDoc = new ActiveXObject("Microsoft.XMLDOM");

额这个小问题我后面改了，但是打开还是会出现Object#<Document>has no method 'load'

Go 旅城通票 2014-11-12

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没问题啊。。你的变量申明有问题是真的 //xmlDoc=new ActiveXObject("Microsoft.XMLHTTP"); xmlHttp = new ActiveXObject("Microsoft.XMLDOM"); //xmlDoc=new ActiveXObject("Microsoft.XMLHTTP"); xmlDoc = new ActiveXObject("Microsoft.XMLDOM");

桦世兵权 2014-11-12