XML SAX解析?失败，求原因。
MyDefaultHandler.java
- Java code
package com.wo;import org.xml.sax.Attributes;import org.xml.sax.SAXException;import org.xml.sax.helpers.DefaultHandler;import android.util.Log;public class MyDefaultHandler extends DefaultHandler { String tagName = null; static News news = null; String type = null; @Override public void characters(char[] ch, int start, int length) throws SAXException { // TODO Auto-generated method stub if (tagName != null) { if (type != null && type.equals("News")) { String data = new String(ch, start, length); if (tagName.equals("ID")) { news.setId(data); Log.v("news id", data); } else if (tagName.equals("TITLE")) { news.setTitle(data); Log.v("news title", data); } else if (tagName.equals("CONTENT")) { news.setContent(data); Log.v("news content", data); } else if (tagName.equals("PUBDATE")) { news.setPubDate(data); Log.v("news pubdate", data); } } } } @Override public void endElement(String uri, String localName, String qName) throws SAXException { if (qName.equals("ITEMS")) { if (type != null && type.equals("News")) { Log.v("news", news.toString()); } } qName = null; } @Override public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { if (qName.equals("ITEMS")) { type = attributes.getValue("name"); if (type.equals("News")) { news = new News(); } else if (type.equals("Single")) { } else if (type.equals("House")) { } else if (type.equals("Interview")) {[code=Java]}
}
tagName = qName;
}
}
[/code]
News.java
- Java code
package com.wo;public class News { public String id; public String title; public String content; public String pubDate; public News() { } @Override public String toString() { return "News [id=" + id + ", title=" + title + ", content=" + content + ", pubDate=" + pubDate + "]"; } /** * @return the id */ public String getId() { return id; } /** * @param id * the id to set */ public void setId(String id) { this.id = id; } /** * @return the title */ public String getTitle() { return title; } /** * @param title * the title to set */ public void setTitle(String title) { this.title = title; } /** * @return the content */ public String getContent() { return content; } /** * @param content * the content to set */ public void setContent(String content) { this.content = content; } /** * @return the pubDate */ public String getPubDate() { return pubDate; } /** * @param pubDate * the pubDate to set */ public void setPubDate(String pubDate) { this.pubDate = pubDate; }}TestCursorActivity.java
- Java code
package com.wo;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.lang.reflect.Field;import javax.xml.parsers.ParserConfigurationException;import javax.xml.parsers.SAXParser;import javax.xml.parsers.SAXParserFactory;import org.apache.http.HttpResponse;import org.apache.http.HttpStatus;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.methods.HttpGet;import org.apache.http.impl.client.DefaultHttpClient;import org.xml.sax.InputSource;import org.xml.sax.SAXException;import android.app.Activity;import android.os.Bundle;public class TestCursorActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); DefaultHttpClient client = new DefaultHttpClient(); HttpGet request = new HttpGet("http://www.10fang.com/api/data.xml"); try { HttpResponse response = client.execute(request); int code = response.getStatusLine().getStatusCode(); if (code == HttpStatus.SC_OK) { InputStream is = response.getEntity().getContent(); InputStreamReader isr = new InputStreamReader(is, "utf-8"); InputSource inputSource = new InputSource(isr); SAXParserFactory factory = SAXParserFactory.newInstance(); SAXParser parser = factory.newSAXParser(); parser.parse(inputSource, new MyDefaultHandler()); } } catch (ClientProtocolException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (ParserConfigurationException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SAXException e) { // TODO Auto-generated catch block e.printStackTrace(); } }}[解决办法]
- Java code
public BuildItem rItem; public BuildFeed rFeed; final int ID = 1; final int NAME = 2; final int ADDRESS = 3; final int ABOUT = 4; final int PUBDATE = 5; private int currentstate = 0; public BuildFeed getFeed(){ return rFeed; } @Override public void startDocument() throws SAXException { rFeed=new BuildFeed(); rItem=new BuildItem(); super.startDocument(); } @Override public void endDocument() throws SAXException { // TODO Auto-generated method stub super.endDocument(); } @Override public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { // TODO Auto-generated method stub if(localName.endsWith("channel")){ currentstate = 0; return; } if(localName.endsWith("item")){ rItem=new BuildItem(); return; } if(localName.equals("id")){ currentstate = ID; return; } if(localName.equals("name")){ currentstate = NAME; return; } if(localName.equals("address")){ currentstate = ADDRESS; return; } if(localName.equals("about")){ currentstate = ABOUT; return; } if(localName.equals("pubDate")){ currentstate = PUBDATE; return; } currentstate = 0; super.startElement(uri, localName, qName, attributes); } @Override public void endElement(String uri, String localName, String qName) throws SAXException { if(localName.endsWith("item")){ rFeed.addItem(rItem); } super.endElement(uri, localName, qName); } @Override public void characters(char[] ch, int start, int length) throws SAXException { // TODO Auto-generated method stub super.characters(ch, start, length); String theString = new String(ch, start, length); switch(currentstate){ case ID: rItem.setId(theString); currentstate = 0; break; case NAME: rItem.setName(theString); currentstate = 0; break; case ADDRESS: rItem.setAddress(theString); currentstate = 0; break; case PUBDATE: rItem.setPubdate(theString); currentstate = 0; break; case ABOUT: rItem.setAbout(theString); currentstate = 0; break; default: return; } }