android XML解析-手机pdf修改软件-程序博客网

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<?xml version="1.0" ?>
- <rss xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" version="2.0">
- <channel>
<title>CSDN社区 → 社区首页 → 版主推荐技术热贴</title>
<link>http://community.csdn.net/</link>
<description>CSDN社区 → 社区首页 → 版主推荐技术热贴</description>
<language>zh-CN</language>
<generator>community.csdn.net</generator>
<copyright>Copyright 1998 - 2010 CSDN.NET Inc. All Rights Reserved</copyright>
- <item>
<title>服务托盘图标</title>
<link>http://topic.csdn.net/u/20101221/11/475FDC82-A689-42C4-BBFF-9AF3C75587C1.html</link>
<author>f_tomorrow</author>
<guid>http://topic.csdn.net/u/20101221/11/475FDC82-A689-42C4-BBFF-9AF3C75587C1.html</guid>
<pubDate>Tue, 21 Dec 2010 06:23:00 GMT</pubDate>
<comments>http://topic.csdn.net/u/20101221/11/475FDC82-A689-42C4-BBFF-9AF3C75587C1.html</comments>
<slash:comments>0</slash:comments>
<source url="http://topic.csdn.net/u/20101221/11/475FDC82-A689-42C4-BBFF-9AF3C75587C1.html">服务托盘图标</source>
<description>服务托盘图标</description>
</item>
......
</channel>
</rss>

[java] view plaincopyprint?

package com.cheerchip.android.xmlcore;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import org.xml.sax.SAXException;
import android.util.Xml;
import com.cheerchip.android.Topic;
/**
* @author jerry.lingchao.wensefu
* date: 2010-12-21
*/
public class AndroidSaxFeedParser extends BaseFeedParser {
/**
* @param feedUrl
*/
public AndroidSaxFeedParser() {
}
public List<Topic> parse() {
RssHandler handler = new RssHandler();
try {
Xml.parse(this.getInputStream(), Xml.Encoding.UTF_8, handler);
} catch (IOException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
}
return handler.getTopics();
}
@Override
public InputStream getInputStream() {
return this.getClass().getClassLoader().getResourceAsStream("csdn.xml");
}
}

[java] view plaincopyprint?

package com.cheerchip.android.xmlcore;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import org.xml.sax.SAXException;
import android.sax.Element;
import android.sax.EndElementListener;
import android.sax.EndTextElementListener;
import android.sax.RootElement;
import android.util.Xml;
import com.cheerchip.android.Topic;
/**
* @author jerry.lingchao.wensefu
* date: 2010-12-21
*/
public class AndroidSaxFeedParser2 extends BaseFeedParser {
/**
* @param feedUrl
*/
public AndroidSaxFeedParser2() {
}
public List<Topic> parse() {
final Topic topic = new Topic();
final List<Topic> topics = new ArrayList<Topic>();
RootElement root = new RootElement("rss");
Element channel = root.getChild("channel");
Element item = channel.getChild("item");
item.setEndElementListener(new EndElementListener() {
@Override
public void end() {
topics.add(topic.copy());
}
});
item.getChild("title").setEndTextElementListener(
new EndTextElementListener() {
@Override
public void end(String body) {
topic.setTitle(body);
}
});
item.getChild("link").setEndTextElementListener(
new EndTextElementListener() {
@Override
public void end(String body) {
topic.setLink(body);
}
});
item.getChild("author").setEndTextElementListener(
new EndTextElementListener() {
@Override
public void end(String body) {
topic.setAuthor(body);
}
});
item.getChild("pubDate").setEndTextElementListener(
new EndTextElementListener() {
@Override
public void end(String body) {
topic.setPubDate(body);
}
});
try {
Xml.parse(this.getInputStream(), Xml.Encoding.UTF_8,
root.getContentHandler());
} catch (IOException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
}
return topics;
}
@Override
public InputStream getInputStream() {
return this.getClass().getClassLoader().getResourceAsStream("csdn.xml");
}
}

[java] view plaincopyprint?

package com.cheerchip.android.xmlcore;
import java.util.ArrayList;
import java.util.List;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import com.cheerchip.android.Topic;
/**
* @author jerry.lingchao.wensefu
* date: 2010-12-21
*/
public class RssHandler extends DefaultHandler {
private List<Topic> topics;
private Topic topic;
private StringBuilder sb;
/**
* @return the topics
*/
public List<Topic> getTopics() {
return topics;
}
@Override
public void characters(char[] ch, int start, int length)
throws SAXException {
super.characters(ch, start, length);
sb.append(ch, start, length);
}
@Override
public void startDocument() throws SAXException {
super.startDocument();
topics = new ArrayList<Topic>();
sb = new StringBuilder();
}
@Override
public void startElement(String uri, String localName, String qName,
Attributes attributes) throws SAXException {
super.startElement(uri, localName, qName, attributes);
if (localName.equalsIgnoreCase(BaseFeedParser.ITEM)) {
this.topic = new Topic();
}
}
@Override
public void endElement(String uri, String localName, String qName)
throws SAXException {
super.endElement(uri, localName, qName);
if (topic != null) {
if (localName.equalsIgnoreCase(BaseFeedParser.TITLE)) {
topic.setTitle(sb.toString());
} else if (localName.equalsIgnoreCase(BaseFeedParser.AUTHOR)) {
topic.setAuthor(sb.toString());
} else if (localName.equalsIgnoreCase(BaseFeedParser.LINK)) {
topic.setLink(sb.toString());
} else if (localName.equalsIgnoreCase(BaseFeedParser.PUB_DATE)) {
topic.setPubDate(sb.toString());
} else if (localName.equalsIgnoreCase(BaseFeedParser.ITEM)) {
topics.add(topic);
}
sb.setLength(0);
}
}
}

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package com.cheerchip.android;
import java.net.MalformedURLException;
import java.net.URL;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* @author jerry.lingchao.wensefu date: 2010-12-21
*/
public class Topic {
private String title;
private URL link;
private String author;
private Date pubDate;
private static SimpleDateFormat format = new SimpleDateFormat(
"EEE, dd MMM yyyy HH:mm:ss Z");
/**
* @return the title
*/
public String getTitle() {
return title;
}
/**
* @param title
* the title to set
*/
public void setTitle(String title) {
this.title = title;
}
/**
* @return the link
*/
public URL getLink() {
return link;
}
/**
* @param link
* the link to set
*/
public void setLink(String link) {
try {
this.link = new URL(link);
} catch (MalformedURLException e) {
e.printStackTrace();
}
}
/**
* @return the author
*/
public String getAuthor() {
return author;
}
/**
* @param author
* the author to set
*/
public void setAuthor(String author) {
this.author = author;
}
/**
* @return the pubDate
*/
public Date getPubDate() {
return pubDate;
}
/**
* @param pubDate
* the pubDate to set
*/
public void setPubDate(String pubDate) {
while (!pubDate.endsWith("00")) {
pubDate += "0";
}
try {
this.pubDate = format.parse(pubDate.trim());
} catch (ParseException e) {
e.printStackTrace();
}
}
public Topic copy() {
Topic copy = new Topic();
copy.author = author;
copy.link = link;
copy.pubDate = pubDate;
copy.title = title;
return copy;
}
@Override
public String toString() {
return "Topic:[title=" + title + ",link=" + link + ",author=" + author
+ ",pubDate=" + pubDate + "]";
}
}

[java] view plaincopyprint?

package com.cheerchip.android;
import java.util.List;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
import com.cheerchip.android.xmlcore.AndroidSaxFeedParser;
import com.cheerchip.android.xmlcore.AndroidSaxFeedParser2;
public class MainAct extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
setTitle("android XML解析");
AndroidSaxFeedParser asf = new AndroidSaxFeedParser();
AndroidSaxFeedParser2 asf2 = new AndroidSaxFeedParser2();
List<Topic> list = asf.parse();
List<Topic> list2 = asf2.parse();
StringBuilder sb = new StringBuilder();
// for (Topic t : list)
// sb.append(t).append("/n");
// sb.append(
// "---------------------------------------------------------------------------------------------------------------")
// .append("/n");
for (Topic t : list2)
sb.append(t).append("/n");
TextView tv = (TextView) findViewById(R.id.text);
tv.setText(sb.toString());
}
}