无法获取元素JavaScript谷歌应用程序脚本 [英] Can't get element javascript google apps script

问题描述

我试图获取feed中的link元素，我可以获取 description 和 title ，但无法获取链接元素。这对我来说似乎很奇怪。这是我的代码

I'm trying to get the link element in a feed, i can get the description and title, but cannot get the link element. It seems weird to me. Here is my code

var url = "http://healthyhow.net/feed";
var response = UrlFetchApp.fetch(url);
var shareDoc = Xml.parse(response.getContentText(), true);

var root = shareDoc.getElement(); // feed element

var entries = root.getElement("channel").getElements("item");
for (var i=0; i<1; i++) { //just pick the first entry
    var e = entries[i];
    var title = e.getElement("title").getText();
    var link = e.getElement("link").getText();
   var description = e.getElement("description").getText();
}

有人可以指出这里有什么问题吗？
Thanks！

Could anyone point out what is wrong here? Thanks!

推荐答案

docs 表明您应该对HTML进行宽松解析 - 目前尚不清楚这是在底层做什么，但在您的情况下，可能会令HTML <使用具有相同标签名称的通用XML元素链接> 元素。它似乎将链接条目解析为类似于您的代码的内容（您可以在 shareDoc.toXmlString（））中看到：

The docs indicate you should use lenient parsing for HTML - it's unclear what this is doing underneath, but in your case maybe it's confusing an HTML <link> element with a generic XML element with that same tag name. It appears to parse the link entries into something like this for your code (which you can see in shareDoc.toXmlString()):

<link/>http://healthyhow.net/l-arginine-natural-treatment-for-hypertension/

由于它是一个空标记，因此没有文字。

Since it's an empty tag, no text.

更改：

Change:

var shareDoc = Xml.parse(response.getContentText(), true);

为：

to be:

var shareDoc = Xml.parse(response.getContentText(), false);

，您应该可以获取链接文本。

and you should be able to get the link text.

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