从javascript加载xml [英] Load xml from javascript
问题描述
完全不熟悉XML,我一直在努力解决这个非常简单的目标(尽管我可以在互联网上找到足够的内容)。只需要这个xml文件中的值:
Totally new to XML and I've been struggling on this very simple objective for too long (though I can find enough on the internet about it). Just need the values out of this xml file:
<?xml version="1.0" encoding="UTF-8"?>
<materials>
<basic>
<uurloon>10</uurloon>
<setloon>100</setloon>
</basic>
<extra>
<geluid>150</geluid>
<ledset>35</ledset>
<strobo>20</strobo>
<laser>50</laser>
</extra>
</materials>
在javascript中,我使用此代码获取xml数据:
In javascript, I use this code to get the xml data:
// load xml file
if (window.XMLHttpRequest) {
xhttp = new XMLHttpRequest();
} else { // IE 5/6
xhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xhttp.open("GET", "pricing.xml", false);
xhttp.send();
xmlDoc = xhttp.responseXML;
var uurloon = xmlDoc.getElementsByTagName("uurloon")[0].childNodes[0].text;
var setloon = xmlDoc.getElementsByTagName("setloon")[0].childNodes[0].text
alert('end');
但是没有结果,因为我没有看到警报..
No result though, cause I'm not seeing the alert..
推荐答案
您的服务器未返回相应的 Content-Type
标头。 responseXML
属性仅在服务器返回 Content-Type:text / xml
或类似 + xml
标题。
Your server isn't returning the appropriate Content-Type
header. The responseXML
property only works if the server returns a Content-Type: text/xml
or similar +xml
header.
该服务只需输出XML Content-type标头......
The service just needs to output an XML Content-type header...
来自w3c :
如果最终MIME类型不为null,则为text / xml,application / xml,并且不以+ xml结尾[...]返回null。
If final MIME type is not null, text/xml, application/xml, and does not end in +xml [...] return null.
如果您无法访问服务器且无法更改 Content-Type
标头,使用 overrideMimeType
函数强制 XMLHttpRequest
将响应视为 text / xml
:
If you have no access to the server and can't change the Content-Type
header, use the overrideMimeType
function to force the XMLHttpRequest
to treat the response as text/xml
:
if (window.XMLHttpRequest) {
xhttp = new XMLHttpRequest();
} else { // IE 5/6
xhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xhttp.overrideMimeType('text/xml');
xhttp.open("GET", "pricing.xml", false);
xhttp.send(null);
xmlDoc = xhttp.responseXML;
var uurloon = xmlDoc.getElementsByTagName("uurloon")[0].childNodes[0].text;
var setloon = xmlDoc.getElementsByTagName("setloon")[0].childNodes[0].text
alert('end');
引用: http://blog-rat.blogspot.com/2010/11/xmlhttprequestresponsexml-returns-null.html
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