使用 Scala XML 从 XML 检索 href/url 数据的问题
Issue retrieving href/url data from XML using Scala XML
样本XML:
<?xml version="1.0" encoding="UTF-8"?>
<entry>
<author>
<name>/u/Kobe_to_Boston</name>
<uri>https://www.reddit.com/user/Kobe_to_Boston</uri>
</author>
<id>t3_94t5in</id>
<link href="https://www.reddit.com/r/hiphopheads/comments/94q6ks/travis_scott_stop_trying_to_be_god_ft_kid_cudi/" />
<updated>2018-08-05T16:38:29+00:00</updated>
<title>The Weeknd - The Hills</title>
</entry>
正在使用Scala XML Library。我正在尝试从 Reddit RSS 提要中获取各种数据。
例如,获取有关 Reddit 标题的信息 post。以下代码为:
val redditPostTitle = (XML.loadString(xmlContent) \ "entry" \ "title").head.text
//assume xmlContent variable is the contains the XML above
以上作品。
现在,问题是,我想从 "link href" 标签中检索数据。我尝试了各种组合:
val redditPostUrl = (XML.loadString(xmlContent) \ "entry" \ "link href").head.text
但是我返回了一个空字符串。我想要返回的是:
"https://www.reddit.com/r/hiphopheads/comments/94q6ks/travis_scott_stop_trying_to_be_god_ft_kid_cudi/
已解决:解决方案是:
(XML.loadString(hhhContent) \ "entry" \ "link" \ "@href").text
这很好用:
object Example extends App {
val feed=
<entry>
<author>
<name>/u/Kobe_to_Boston</name>
<uri>https://www.reddit.com/user/Kobe_to_Boston</uri>
</author>
<id>t3_94t5in</id>
<link href="https://www.reddit.com/r/hiphopheads/comments/94q6ks/travis_scott_stop_trying_to_be_god_ft_kid_cudi/" />
<updated>2018-08-05T16:38:29+00:00</updated>
<title>The Weeknd - The Hills</title>
</entry>
println(feed \ "link" \ "@href")
}
样本XML:
<?xml version="1.0" encoding="UTF-8"?>
<entry>
<author>
<name>/u/Kobe_to_Boston</name>
<uri>https://www.reddit.com/user/Kobe_to_Boston</uri>
</author>
<id>t3_94t5in</id>
<link href="https://www.reddit.com/r/hiphopheads/comments/94q6ks/travis_scott_stop_trying_to_be_god_ft_kid_cudi/" />
<updated>2018-08-05T16:38:29+00:00</updated>
<title>The Weeknd - The Hills</title>
</entry>
正在使用Scala XML Library。我正在尝试从 Reddit RSS 提要中获取各种数据。
例如,获取有关 Reddit 标题的信息 post。以下代码为:
val redditPostTitle = (XML.loadString(xmlContent) \ "entry" \ "title").head.text
//assume xmlContent variable is the contains the XML above
以上作品。
现在,问题是,我想从 "link href" 标签中检索数据。我尝试了各种组合:
val redditPostUrl = (XML.loadString(xmlContent) \ "entry" \ "link href").head.text
但是我返回了一个空字符串。我想要返回的是:
"https://www.reddit.com/r/hiphopheads/comments/94q6ks/travis_scott_stop_trying_to_be_god_ft_kid_cudi/
已解决:解决方案是:
(XML.loadString(hhhContent) \ "entry" \ "link" \ "@href").text
这很好用:
object Example extends App {
val feed=
<entry>
<author>
<name>/u/Kobe_to_Boston</name>
<uri>https://www.reddit.com/user/Kobe_to_Boston</uri>
</author>
<id>t3_94t5in</id>
<link href="https://www.reddit.com/r/hiphopheads/comments/94q6ks/travis_scott_stop_trying_to_be_god_ft_kid_cudi/" />
<updated>2018-08-05T16:38:29+00:00</updated>
<title>The Weeknd - The Hills</title>
</entry>
println(feed \ "link" \ "@href")
}