as3 命名空间 - 获取一个带有减号的属性
我已将 XML 的命名空间设置为使用 SMIL，并且可以通过以下方式提取元素的 src 属性：
my.node.@src 得到“这是某个 URL”
但是，我有另一个名为“系统比特率”的属性。由于减号，我无法执行 @system-bitrate 所以我尝试了我通常做的事情，即 my.node.attribute('system-bitrate')这是行不通的。
奇怪的是，甚至 my.node.attribute('src') 也不起作用。我怀疑这是由于命名空间造成的？那么如何使用 ny.node.attribute 获取属性呢？
唯一有效的是 my.node.attributes()[1]。 我知道这不是“正确的方法”，所以我希望有人能启发我！
仅供参考，我正在与SMIL 文件
** 编辑 **
这是我正在使用的 XML 所需的命名空间： default xml namespace = new Namespace('http://www.w3.org/2001/SMIL20/Language');
我正在使用的 XML 示例：
<smil xmlns="http://www.w3.org/2001/SMIL20/Language">
<head>
<meta name="title" content="Live"/>
</head>
<body>
<switch>
<video src="myStreamName" system-bitrate="200000"/>
</switch>
</body>
</smil>
** 代码示例丹尼斯贾曼 **
default xml namespace = new Namespace('http://www.w3.org/2001/SMIL20/Language');
var xml:XML = XML(event.target.data);
for each(var o:XML in xml.body['switch'].video) {
if(!hs) hs = o;
else {
trace(o.attributes()[1]); // works
trace(o.@url); // doesn't work either (makes me wonder about NS issues
trace(o['@system-bitrate']); // doesn't work
trace(o.attribute('@system-bitrate') // doesn't work
// etc etc, I just left a few in here
}
}
Possible Duplicate:
e4x / as3: How to access a node with a dash in its name.
I've set the namespace for my XML to use SMIL and I'm able to pull the src attribute of an element this way:
my.node.@src which gets "this is some URL"
However, I have another attr called 'system-bitrate'. Because of the minus sign, I can't do @system-bitrate So I attempted what I normally do which is my.node.attribute('system-bitrate') which isn't working.
Oddly enough, not even my.node.attribute('src') works. I suspect this is due to the namespace? So how to I get attributes out using ny.node.attribute ?
The only thing that works is my.node.attributes()[1]. I know that's not the "right way" so I'm hoping someone can enlighten me!
FYI I'm working with SMIL files
** edit **
Here's the namespace required for the XML I'm using:default xml namespace = new Namespace('http://www.w3.org/2001/SMIL20/Language');
And an example of the XML I'm working with:
<smil xmlns="http://www.w3.org/2001/SMIL20/Language">
<head>
<meta name="title" content="Live"/>
</head>
<body>
<switch>
<video src="myStreamName" system-bitrate="200000"/>
</switch>
</body>
</smil>
** code sample for DennisJaaman **
default xml namespace = new Namespace('http://www.w3.org/2001/SMIL20/Language');
var xml:XML = XML(event.target.data);
for each(var o:XML in xml.body['switch'].video) {
if(!hs) hs = o;
else {
trace(o.attributes()[1]); // works
trace(o.@url); // doesn't work either (makes me wonder about NS issues
trace(o['@system-bitrate']); // doesn't work
trace(o.attribute('@system-bitrate') // doesn't work
// etc etc, I just left a few in here
}
}
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评论（3）
尝试使用方括号，如下例所示：
Try to use square brackets like in the sample below:
看哪！ QName 的力量！
关于属性（以及后代，子级...）的事情是它的参数是类型
*（匿名）。这是因为它实际上不是一个字符串，它在后台被强制转换为 QName（没有 URI）。这意味着您正在默认 URI 下搜索上述 URI 下的内容。让我知道上面的代码是如何工作的。
Behold! The power of QName!
The thing about attribute (and descendant, and child...) is that its parameter is type
*(anonymously). This is because it really isn't a String, it is coerced to a QName (without a URI) in the background. This means you were searching under the default URI for something under the URI above.Let me know how that code above works out.
查看这篇文章：
e4x / as3：如何访问名称中带有破折号的节点
******编辑****：
并使用以下表示法获取包含 - （破折号）的 XML 属性
这些不起作用：
有关更多信息，请检查LiveDocs
干杯
Check out this post:
e4x / as3: How to access a node with a dash in its name
******EDIT****:
And use the following notation to get XML Attributes that contain a - (dash)
These do not work:
For more info check the LiveDocs
Cheers