我是 swift 编程的新手.. 我想快速解析 xml 数据..

这是我的 xml 数据..

  <rss version="2.0">
     <channel>
     <title>Zee News :India National</title>
     <link>
     <![CDATA[ http://zeenews.india.com ]]>
     </link>
    <description>
    <![CDATA[
        Visit Zee News for latest India news, get latest news from India and        all over the world. We provide you latest celebrity news, latest bollywood news and entertainment news with fastest top stories online about cricket, sports, business, bollywood, entertainment, lifestyle, world and science to get yourself updated.
    ]]>
    </description>
    <language>en-us</language>
    <copyright>Zee News Ltd</copyright>
    <category>India National News</category>
   <pubDate>
   <![CDATA[ 2/04/2016 11:16:57 AM GMT ]]>
   </pubDate>
   <image>
   <url>
   <![CDATA[
http://znn.india.com/images/logo-zeenews-aab-nw.jpg
]]>
   </url>
   <title>
   <![CDATA[ Zee News ]]>
   </title>
   <link>
   <![CDATA[ http://zeenews.india.com ]]>
   </link>
   </image>
   <item>
   <title>
Son of retired Major General arrested in Goa for suspected `terror links`
   </title>
   <link>
   <![CDATA[
http://zeenews.india.com/news/india/son-of-retired-major-general-arrested-in-goa-for-suspected-terror-links_1852160.html
]]>
   </link>
   <description>
Samir Sardana was picked up from Vasco railway station after he was found "wandering suspiciously".
   </description>
<comments>mailto:inewsonline@gmail.com</comments>
<pubdate>Thursday, February 04, 2016, 10:13 GMT +5:30</pubdate>
   <author/>
<guid isPermaLink="false">
   <![CDATA[
http://zeenews.india.com/news/india/son-of-retired-major-general-arrested-in-goa-for-suspected-terror-links_1852160.html
]]>
   </guid>
   </item>

我试图解析但只有“项目”数据可以解析，而不是“标题”和“图像”

这是我的代码...

     var parser = NSXMLParser()
    var posts = NSMutableArray()

    var elements = NSMutableDictionary()

    var element = NSString()
    var title1 = NSMutableString()
    var title3 = NSMutableString()
    var date = NSMutableString()
    var link = NSMutableString()
func beginParsing()
    {

        posts = []
        parser = NSXMLParser(contentsOfURL:(NSURL(string:"http://zeenews.india.com/rss/india-national-news.xml"))!)!
        parser.delegate = self
        parser.parse()

        tbData!.reloadData()
    }
func parser(parser: NSXMLParser, didStartElement elementName: String, namespaceURI: String?, qualifiedName qName: String?,attributes attributeDict:[NSObject :AnyObject])
    {
if (elementName as NSString).isEqualToString("title")
        {
        elements = NSMutableDictionary.alloc()
            title3 = NSMutableString()
            title3 = ""
         }

      if (elementName as NSString).isEqualToString("item")
        {
            elements = NSMutableDictionary.alloc()
            elements = [:]
            title1 = NSMutableString()
            title1 = ""
            date = NSMutableString()
            date = ""
            link = NSMutableString()
            link = ""
        }
    }

    func parser(parser: NSXMLParser, didEndElement elementName: String, namespaceURI: String?, qualifiedName qName: String?)
    {
if (elementName as NSString).isEqualToString("title")
        {
            if !title3.isEqual(nil) {
               elements.setObject(title3, forKey: "title")
                //posts.addObject(elements)

       }

       }

      if (elementName as NSString).isEqualToString("item") {
            if !title1.isEqual(nil) {
                elements.setObject(title1, forKey: "title")
            }
            if !date.isEqual(nil) {
                elements.setObject(date, forKey: "date")
            }
            if !link.isEqual(nil){
               elements.setObject(link, forKey: "link")
            }
            posts.addObject(elements)
        }
        //posts.addObject(elements)
        //posts.addObject(post)
    }

    func parser(parser: NSXMLParser, foundCharacters string: String?)
    {
        if element.isEqualToString("title")
       {
       title3.appendString(string!)
       }


       if element.isEqualToString("title") {
            title1.appendString(string!)
        }
         if element.isEqualToString("link"){
                link.appendString(string!)
        }

         if element.isEqualToString("pubDate") {
            date.appendString(string!)
        }
    }

Plz...建议我如何解析整个 rss 提要数据的任何解决方案...

最佳答案

我现在纯粹是猜测。

你说 item 解析得很好，而 title 和 image 没有。

查看 XML，似乎 image 例如仅包含 CDATA 元素

<image>
   <url>
     <![CDATA[http://znn.india.com/images/logo-zeenews-aab-nw.jpg]]>
   </url>
   <title>
     <![CDATA[ Zee News ]]>
   </title>
   <link>
     <![CDATA[ http://zeenews.india.com ]]>
   </link>
</image>

我找到了 this post在 Stack Overflow 上，有人询问如何处理 XML 中的 CDATA。结果是 NSXMLParserDelegate 有一个可选的方法，叫做:

parser(_ parser: NSXMLParser, foundCDATA CDATABlock: NSData)

您可以在此处阅读 Apples documentation

也许这对你有帮助？

关于ios - 如何在 swift 中解析整个 rss feed xml 数据，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35194386/