如何從rss URL讀取RSS提要？

Question

我正在一個android應用程序中，我必須從RSS提要中獲取數據，我能夠讀取標題，鏈接和麪對問題的描述。如果是這種格式

<description>  
    worsening of developments in...... 
</description> 

我能夠讀出來，但是在一些RSS提要具有這種格式也

<description> 
    <p><a href="http://news.yahoo.com/ap-sources 
</description> 

我沒有得到這個文本.. 這就是RSS訂閱網址：http://news.yahoo.com/rss/politics。

如何仔細閱讀本說明..

Answer 1

package com.samir.XMLParser; 

import java.io.*; 
import java.net.*; 
import java.util.*; 
import javax.xml.parsers.*; 
import org.w3c.dom.*; 

public class HTMLRemoverParser { 

    HTMLRemoverBean objBean; 
    Vector<HTMLRemoverBean> vectParse; 

    int mediaThumbnailCount; 
    boolean urlflag; 
    int count = 0; 

    public HTMLRemoverParser() { 
     try { 

      vectParse = new Vector<HTMLRemoverBean>(); 
      URL url = new URL("http://news.yahoo.com/rss/politics"); 
      URLConnection con = url.openConnection(); 

      System.out.println("Connection is : " + con); 

      BufferedReader reader = new BufferedReader(new InputStreamReader(
        con.getInputStream())); 
      System.out.println("Reader :" + reader); 

      String inputLine; 
      String fullStr = ""; 
      while ((inputLine = reader.readLine()) != null) 
       fullStr = fullStr.concat(inputLine + "\n"); 

      InputStream istream = url.openStream(); 

      DocumentBuilder builder = DocumentBuilderFactory.newInstance() 
        .newDocumentBuilder(); 

      Document doc = builder.parse(istream); 

      doc.getDocumentElement().normalize(); 


      NodeList nList = doc.getElementsByTagName("item"); 

      System.out.println(); 

      for (int temp = 0; temp < nList.getLength(); temp++) { 

       Node nNode = nList.item(temp); 
       if (nNode.getNodeType() == Node.ELEMENT_NODE) { 

        Element eElement = (Element) nNode; 

        objBean = new HTMLRemoverBean(); 
        vectParse.add(objBean); 

        objBean.title = getTagValue("title", eElement); 
        objBean.description = getTagValue("description", eElement); 
        String noHTMLString = objBean.description.replaceAll("\\<.*?\\>", ""); 
        objBean.description=noHTMLString; 
        objBean.link = getTagValue("link", eElement); 
        objBean.pubdate = getTagValue("pubDate", eElement); 

       } 
      } 

      for (int index1 = 0; index1 < vectParse.size(); index1++) { 
       HTMLRemoverBean ObjNB = (HTMLRemoverBean) vectParse 
         .get(index1); 

       System.out.println("Item No : " + index1); 
       System.out.println(); 

       System.out.println("Title is : " + ObjNB.title); 
       System.out.println("Description is : " + ObjNB.description); 
       System.out.println("Link is : " + ObjNB.link); 
       System.out.println("Pubdate is : " + ObjNB.pubdate); 

       System.out.println(); 
       System.out 
         .println("-------------------------------------------------------------------------------------------------------------"); 

      } 

     } catch (Exception e) { 
      e.printStackTrace(); 
     } 
    } 

    private String getTagValue(String sTag, Element eElement) { 
     NodeList nlList = eElement.getElementsByTagName(sTag).item(0) 
       .getChildNodes(); 

     Node nValue = (Node) nlList.item(0); 

     return nValue.getNodeValue(); 

    } 

    public static void main(String[] args) { 
     new HTMLRemoverParser(); 
    } 

} 

和豆腐是::

package com.samir.XMLParser; 

public class HTMLRemoverBean { 

    public String title; 
    public String description; 
    public String link; 
    public String pubdate; 

} 

Answer 2

當檢測到的文本塊是HTML，在網頁視圖，而不是一個TextView打開它。我的解決辦法是這樣的：

WebView wv = (WebView) v.findViewById(R.id.feed_entry_detail); 
wv.loadData(mContentFromFeed, "text/html; charset=utf-8", null);