我正在研究讀取RSS源的ANDROID應用程序,所以我使用本教程(http://android-er.blogspot.com/2010/05/simple-rss-reader-ii-implement-with.html)/源代碼在這裏,並將其實現到我自己的url rss feeder。但是描述標籤沒有被顯示出來......在饋線的xml中,幾乎是cz,描述標籤是CDATA。 我如何解析描述cdata在我的rss ??謝謝!CDATA未解析爲ANDROID RSS閱讀器
這是我的處理代碼:
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
public class RSSHandler extends DefaultHandler {
final int state_unknown = 0;
final int state_title = 1;
final int state_description = 2;
final int state_link = 3;
final int state_pubdate = 4;
int currentState = state_unknown;
RSSFeed feed;
RSSItem item;
boolean itemFound = false;
RSSHandler(){
}
RSSFeed getFeed(){
return feed;
}
@Override
public void startDocument() throws SAXException {
// TODO Auto-generated method stub
feed = new RSSFeed();
item = new RSSItem();
}
@Override
public void endDocument() throws SAXException {
// TODO Auto-generated method stub
}
@Override
public void startElement(String uri, String localName, String qName,
Attributes attributes) throws SAXException {
// TODO Auto-generated method stub
if (localName.equalsIgnoreCase("item")){
itemFound = true;
item = new RSSItem();
currentState = state_unknown;
}
else if (localName.equalsIgnoreCase("title")){
currentState = state_title;
}
else if (localName.equalsIgnoreCase("description")){
currentState = state_description;
}
else if (localName.equalsIgnoreCase("link")){
currentState = state_link;
}
else if (localName.equalsIgnoreCase("pubdate")){
currentState = state_pubdate;
}
else{
currentState = state_unknown;
}
}
@Override
public void endElement(String uri, String localName, String qName)
throws SAXException {
// TODO Auto-generated method stub
if (localName.equalsIgnoreCase("item")){
feed.addItem(item);
}
}
@Override
public void characters(char[] ch, int start, int length)
throws SAXException {
// TODO Auto-generated method stub
String strCharacters = new String(ch,start,length);
if (itemFound==true){
// "item" tag found, it's item's parameter
switch(currentState){
case state_title:
item.setTitle(strCharacters);
break;
case state_description:
item.setDescription(strCharacters);
break;
case state_link:
item.setLink(strCharacters);
break;
case state_pubdate:
item.setPubdate(strCharacters);
break;
default:
break;
}
}
else{
// not "item" tag found, it's feed's parameter
switch(currentState){
case state_title:
feed.setTitle(strCharacters);
break;
case state_description:
feed.setDescription(strCharacters);
break;
case state_link:
feed.setLink(strCharacters);
break;
case state_pubdate:
feed.setPubdate(strCharacters);
break;
default:
break;
}
}
currentState = state_unknown;
}
}
的RSSFeed:
import java.util.List;
import java.util.Vector;
public class RSSFeed {
private String title = null;
private String description = null;
private String link = null;
private String pubdate = null;
private List<RSSItem> itemList;
RSSFeed(){
itemList = new Vector<RSSItem>(0);
}
void addItem(RSSItem item){
itemList.add(item);
}
RSSItem getItem(int location){
return itemList.get(location);
}
List<RSSItem> getList(){
return itemList;
}
void setTitle(String value)
{
title = value;
}
void setDescription(String value)
{
description = value;
}
void setLink(String value)
{
link = value;
}
void setPubdate(String value)
{
pubdate = value;
}
String getTitle()
{
return title;
}
String getDescription()
{
return description;
}
String getLink()
{
return link;
}
String getPubdate()
{
return pubdate;
}
}
你能提供處理程序嗎?我幾天前完成了這個(可能使用相同的教程)並且它正在工作。 – Enrichman 2012-08-01 13:07:13
我剛剛添加了我的處理程序代碼:) – Beast 2012-08-01 13:18:24
謝謝。嘗試實施我的,做一些小的修改,以存儲飼料參數。每次我看到一個Handler的時候,邏輯都在characters方法裏面(應該在endElement之一中)。這是完全錯誤的。我應該在我的網站上做一個教程!大聲笑 – Enrichman 2012-08-01 13:21:08