Question

目标：
要在html文档中基于XML dom在xml文件中添加新数据。

问题：
这段代码来自w3school，然后我尝试将数据保存在xml中，在执行源代码后它没有保存任何内容。

代码取自“http://www.w3schools.com/Dom/dom_nodes_add.asp” - “插入节点 - insertBefore（）”。

// Fullmetalboy

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

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

newNode=xmlDoc.createElement("book");

x=xmlDoc.documentElement;
y=xmlDoc.getElementsByTagName("book");

document.write("Book elements before: " + y.length);
document.write("<br />");
x.insertBefore(newNode,y[3]);

y=xmlDoc.getElementsByTagName("book");
document.write("Book elements after: " + y.length);
</script>
</body>
</html>

function loadXMLDoc(dname)
{
    if (window.XMLHttpRequest)
    {
        xhttp=new XMLHttpRequest();
    }
    else
    {
        xhttp=new ActiveXObject("Microsoft.XMLHTTP");
    }

    xhttp.open("GET",dname,false);
    xhttp.send();
    return xhttp.responseXML;
}

<?xml version="1.0" encoding="ISO-8859-1"?>
<!-- Edited by XMLSpy® -->
<bookstore>
<book category="cooking">
<title lang="en">Everyday Italian</title>
<author>Giada De Laurentiis</author>
<year>2005</year>
<price>30.00</price>
</book>
<book category="children">
<title lang="en">Harry Potter</title>
<author>J K. Rowling</author>
<year>2005</year>
<price>29.99</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>
<book category="web" cover="paperback">
<title lang="en">Learning XML</title>
<author>Erik T. Ray</author>
<year>2003</year>
<price>39.95</price>
</book>
</bookstore>

Answer 1

而不是

x.insertBefore(newNode,y[3]);

试试这个：

xmlDoc.documentElement.insertBefore(newNode, y[3]);

无法在xml文件中保存数据

1 个答案: