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java - RSS Feed 解析,提取字段值

转载 作者:行者123 更新时间:2023-11-30 03:24:28 26 4
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我对 RSS 提要解析完全陌生。我正在尝试的是获取 mp3 文件的持续时间。但是我无法从特定标签中获取值(value)

<itunes:duration>01:00:00</itunes:duration>

这是我的解析代码:

public List<RSSItem> parse() {
final RSSItem currentMessage = new RSSItem();
RootElement root = new RootElement("rss");
final List<RSSItem> messages = new ArrayList<RSSItem>();

Element channel = root.getChild("channel");
Element item = channel.getChild(ITEM);
item.setEndElementListener(new EndElementListener() {
public void end() {
messages.add(currentMessage.copy());
}
});
item.getChild(TITLE).setEndTextElementListener(
new EndTextElementListener() {
public void end(String body) {
currentMessage.setTitle(body);
}
});
item.getChild(LINK).setEndTextElementListener(
new EndTextElementListener() {
public void end(String body) {
currentMessage.setLink(body);
}
});
item.getChild(DESCRIPTION).setEndTextElementListener(
new EndTextElementListener() {
public void end(String body) {
currentMessage.setDescription(body);
}
});
item.getChild("http://purl.org/rss/1.0/modules/content/", "encoded")
.setEndTextElementListener(new EndTextElementListener() {
public void end(String body) {
currentMessage.setContent(body);
}
});
item.getChild(CONTENT).setEndTextElementListener(
new EndTextElementListener() {
public void end(String body) {
currentMessage.setContent(body);
}
});
item.getChild(PUB_DATE).setEndTextElementListener(
new EndTextElementListener() {
public void end(String body) {
currentMessage.setDate(body);
}
});
item.getChild(CATEGORY).setEndTextElementListener(
new EndTextElementListener() {
public void end(String body) {
currentMessage.setCategory(body);
}
});
Element enclosure = item.getChild(ENCLOSURE);
enclosure.setStartElementListener(new StartElementListener() {

public void start(Attributes attributes) {
currentMessage.setAdioUrl(attributes.getValue("url"));
// currentMessage.setAdioFileDuration(attributes.getValue("length"));
}

});
item.getChild(ADIOFILEDuration).setEndTextElementListener(
new EndTextElementListener() {
public void end(String body) {
currentMessage.setAdioFileDuration(body);
}
}); //ADIOFILEDuration=itunes

try {
Xml.parse(this.getInputStream(), Xml.Encoding.UTF_8,
root.getContentHandler());
} catch (Exception e) {
throw new RuntimeException(e);
}
return messages;
}

这里是 RSS 对象:

 <item>
<title>FantasyGuru.com Show - Jul 30,2009</title>
<link>http://www.blogtalkradio.com/fantasyguru/2009/07/30/fantasygurucom-show</link>
.....
....
....
....
<itunes:duration>01:00:00</itunes:duration>
<media:group>
<media:content url="http://www.blogtalkradio.com/fantasyguru/2009/07/30/fantasygurucom-show.mp3" fileSize="14426407" type="audio/mpeg" /><media:content url="http://www.blogtalkradio.com/fantasyguru/2009/07/30/fantasygurucom-show.wma" fileSize="14426407" type="audio/x-ms-wma" />
</media:group>
<itunes:author>FantasyGuru</itunes:author>
<itunes:explicit>no</itunes:explicit>
<itunes:keywords>fantasy,NFL,sports,FantasyGuru,football,BlogTalkRadio, Blog Talk Radio</itunes:keywords>
<itunes:subtitle>FantasyGuru.com Show</itunes:subtitle>
</item>

最佳答案

http://docs.oracle.com/javase/tutorial/jaxb/intro/index.html

您看过 JAXB 了吗?这是一种通过 XML 进行解析的更好方法,它可能有助于解决您的问题。

关于java - RSS Feed 解析,提取字段值,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/18483428/

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