android--xml解析

zlj.xml包

XMLActivity.java

package zlj.xml;import java.io.StringReader;import javax.xml.parsers.SAXParserFactory;import org.xml.sax.InputSource;import org.xml.sax.XMLReader;import zlj.utils.HttpDownloader;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;public class XMLActivity extends Activity{ private Button parseButton ;@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.layout.main);parseButton = (Button)findViewById(R.id.parseButton);parseButton.setOnClickListener(new ParseButtonListener());}class ParseButtonListener implements OnClickListener{@Overridepublic void onClick(View v) {// TODO Auto-generated method stubHttpDownloader hd = new HttpDownloader();String resultStr = hd.download("http://115.156.228.231:8080/Mp3/people.xml"); System.out.println(resultStr); try{ SAXParserFactory factory = SAXParserFactory.newInstance(); XMLReader reader = factory.newSAXParser().getXMLReader(); reader.setContentHandler(new MyContentHandler()); reader.parse(new InputSource(new StringReader(resultStr))); } catch (Exception e){ e.printStackTrace(); }}}}

 

MyContentHandler.java

package zlj.xml;import org.xml.sax.Attributes;import org.xml.sax.SAXException;import org.xml.sax.helpers.DefaultHandler;public class MyContentHandler extends DefaultHandler{String hisname, address, money, sex, status;String tagName;public void startDocument() throws SAXException {System.out.println("........begin.......");}public void endDocument() throws SAXException {System.out.println("........end.......");}public void startElement(String namespaceURI, String localName,String qName,Attributes attr) throws SAXException {tagName = localName;if (localName.equals("worker")) {for (int i = 0; i < attr.getLength(); i++) {System.out.println(attr.getLocalName(i) + "=" + attr.getValue(i));}}}public void endElement(String namespaceURI, String localName, String qName)throws SAXException {tagName = ""; //不清楚為啥if (localName.equals("worker")) {this.printout();}}public void characters(char[] ch, int start, int length)throws SAXException {if (tagName.equals("name")){hisname = new String(ch, start, length);//System.out.println("charactors-->" + hisname);}else if (tagName.equals("sex")){sex = new String(ch, start, length);//System.out.println("charactors-->" + sex);}else if (tagName.equals("status")){status = new String(ch, start, length);}else if (tagName.equals("address")){address = new String(ch, start, length);}else if (tagName.equals("money")){money = new String(ch, start, length);}}private void printout() {System.out.println("name: " + hisname );//System.out.println(hisname);System.out.print("sex: ");System.out.println(sex);System.out.print("status: ");System.out.println(status);System.out.print("address: ");System.out.println(address);System.out.print("money: ");System.out.println(money);System.out.println();}}

 

zlj.utils包中

HttpDownloader.java

package zlj.utils;import zlj.utils.FileUtils;import java.io.BufferedReader;import java.io.File;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;public class HttpDownloader {private URL url = null;public String download(String urlStr) {StringBuffer sb = new StringBuffer();String line = null;BufferedReader buffer = null; try { url = new URL(urlStr); HttpURLConnection urlConn = (HttpURLConnection) url.openConnection(); buffer = new BufferedReader(new InputStreamReader(urlConn.getInputStream())); while ((line = buffer.readLine()) != null) { sb.append(line); } }catch (Exception e) { e.printStackTrace(); } finally { try { buffer.close(); } catch (Exception e){ e.printStackTrace(); } } return sb.toString();}public int downloadFile(String urlStr, String path, String fileName) {InputStream inputStream = null;try {FileUtils fileUtils = new FileUtils();if(fileUtils.isFileExist(path + fileName)) {return 1;} else {inputStream = getInputStreamFromUrl(urlStr);File resultFile = fileUtils.write2SDFromInput(path,fileName,inputStream);if(resultFile == null) {return -1;}} }catch (Exception e) {e.printStackTrace();return -1;}finally {try{inputStream.close();} catch (Exception e) {e.printStackTrace();}}return 0;}public InputStream getInputStreamFromUrl(String urlStr) throws MalformedURLException,IOException {url = new URL(urlStr);HttpURLConnection urlConn = (HttpURLConnection) url.openConnection();InputStream inputStream = urlConn.getInputStream();return inputStream;}}

 

FileUtils.java

package zlj.utils;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import android.os.Environment;public class FileUtils { private String SDPATH; public String getSDPATH() { return SDPATH; } public FileUtils() { //得到当前外部存储设备的目录 SDPATH = Environment.getExternalStorageDirectory() + "/"; } public File creatSDFile(String fileName) throws IOException { File file = new File(SDPATH + fileName); file.createNewFile(); return file; } public File creatSDDir(String dirName) { File dir = new File(SDPATH + dirName); dir.mkdir(); return dir; } public boolean isFileExist(String fileName) { File file = new File(SDPATH + fileName); return file.exists();} public File write2SDFromInput(String path, String fileName,InputStream inputStream) {// TODO Auto-generated method stubFile file = null; OutputStream output = null; try { creatSDDir(path); file = creatSDFile(path + fileName); output = new FileOutputStream(file); byte buffer [] = new byte[4 * 1024]; while((inputStream.read(buffer)) != -1) { output.write(buffer); } output.flush(); } catch(Exception e) { e.printStackTrace(); } finally{ try{ output.close(); } catch(Exception e){ e.printStackTrace(); } } return file;} }

 

main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" ><TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" /> <Button android:id="@+id/parseButton" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="开始解析" /> </LinearLayout>

 

AndoridManifest.xml

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android" package="zlj.xml" android:versionCode="1" android:versionName="1.0"> <uses-sdk android:minSdkVersion="8" /> <application android:icon="@drawable/icon" android:label="@string/app_name"> <activity android:name=".XMLActivity" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> <uses-permission android:name="android.permission.INTERNET"/> </manifest>

 

要下载的xml文档的位置为:

F:/ruanjian/tomcat/webapps/Mp3 名字为people.xml

<?xml version="1.0" encoding="UTF-8"?><workers> <worker id="AQ01" ids="1234"> <name>Mark</name> <sex>m</sex> <status>d</status> <address>r</address> <money>4000</money> </worker> <worker id="AQ02"> <name>lucy</name> <sex>r</sex> <status>t</status> <address>uu</address> <money>1000</money> </worker> <worker id="AQ03"> <name>lily</name> <sex>i</sex> <status>te</status> <address>ru</address> <money>3000</money> </worker></workers>