XML Multilayer nested parsing method sax mode (including network requests)

Enable asynchronous class fetch data

Package com.bwie.myasynctask;

Import java.io.IOException;
Import Java.io.InputStream;
Import java.io.Serializable;
Import java.io.UnsupportedEncodingException;
Import java.util.ArrayList;
Import java.util.List;

Import javax.xml.parsers.ParserConfigurationException;
Import Javax.xml.parsers.SAXParser;
Import Javax.xml.parsers.SAXParserFactory;

Import Org.apache.http.HttpResponse;
Import Org.apache.http.NameValuePair;
Import org.apache.http.client.ClientProtocolException;
Import org.apache.http.client.HttpClient;
Import org.apache.http.client.entity.UrlEncodedFormEntity;
Import Org.apache.http.client.methods.HttpPost;
Import org.apache.http.impl.client.DefaultHttpClient;
Import Org.apache.http.message.BasicNameValuePair;
Import Org.apache.http.protocol.HTTP;
Import org.xml.sax.SAXException;

Import Com.bwie.http_img_xml_caipu. itemactivity;
Import Com.bwie.myadapter.HomeAdapter;
Import Com.bwie.mydefaulthander.HomeDefaultHander;
Import Com.bwie.vo.DataVO;
Import Com.bwie.vo.StepsVO;

Import Android.content.Context;
Import android.content.Intent;
Import Android.os.AsyncTask;
Import Android.view.View;
Import Android.widget.AdapterView;
Import Android.widget.AdapterView.OnItemClickListener;
Import Android.widget.ListView;

public class Myasynctask extends Asynctask<string, Integer, list<datavo>> {
Private context context;
Private ListView LV;
Private String str_ed;
Private list<datavo> DataList;


Public Myasynctask (context context, ListView LV, String str_ed) {
Super ();
This.context = context;
this.lv = LV;
this.str_ed = str_ed;
}

@Override
Protected list<datavo> doinbackground (String ... arg0) {
TODO auto-generated Method Stub
HttpClient client=new defaulthttpclient ();
HttpPost post=new HttpPost (arg0[0]);
List<namevaluepair> list=new arraylist<namevaluepair> ();
List.add (New Basicnamevaluepair ("Key", "3A3D0FA15180459CBF022D5D77E50DE5"));
List.add (New Basicnamevaluepair ("menu", str_ed));
List.add (New Basicnamevaluepair ("RN", "10"));
List.add (New Basicnamevaluepair ("PN", "3"));
List.add (New Basicnamevaluepair ("Dtype", "xml"));
try {
Urlencodedformentity entity=new urlencodedformentity (list,http. UTF_8);
Post.setheader ("Content_Type", "application/x-www-form-urlencoded;charset=utf-8");
Post.setentity (entity);
HttpResponse response = Client.execute (POST);
if (Response.getstatusline (). Getstatuscode () ==200) {
InputStream is=response.getentity (). getcontent ();
SAXParserFactory factory=saxparserfactory.newinstance ();
SAXParser Parser=factory.newsaxparser ();
Homedefaulthander dh=new Homedefaulthander ();
Parser.parse (is, DH);
DataList = Dh.getdatalist ();

}
} catch (Unsupportedencodingexception e) {
TODO auto-generated Catch block
E.printstacktrace ();
} 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 ();
}
return DataList;
}

@Override
protected void OnPostExecute (final list<datavo> result) {
TODO auto-generated Method Stub
Super.onpostexecute (result);
Lv.setadapter (New Homeadapter (context, result));
Lv.setonitemclicklistener (New Onitemclicklistener () {

public void Onitemclick (adapterview<?> arg0, View arg1, int arg2,
Long Arg3) {
TODO auto-generated Method Stub
Intent intent=new Intent (context, itemactivity.class);
Intent.putextra ("List", (Serializable) Result.get (arg2). steps);
Context.startactivity (Intent);
}
});
}

@Override
protected void OnPreExecute () {
TODO auto-generated Method Stub
Super.onpreexecute ();
}

@Override
protected void Onprogressupdate (Integer ... values) {
TODO auto-generated Method Stub
Super.onprogressupdate (values);
}

}

Custom Classes

Package com.bwie.mydefaulthander;

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 Android.util.Log;

Import Com.bwie.vo.DataVO;
Import Com.bwie.vo.StepsVO;

public class Homedefaulthander extends DefaultHandler {
Private list<datavo> data;
private int mun=0;
Private String flag;
Private Datavo Datavo;
Private STEPSVO STEPSVO;
Start parsing documents
@Override
public void Startdocument () throws Saxexception {
TODO auto-generated Method Stub
Super.startdocument ();
data = new arraylist<datavo> ();
LOG.E ("TAG", "Start parsing document");
}
Start parsing labels
@Override
public void Startelement (string uri, String localname, String qName,
Attributes Attributes) throws Saxexception {
TODO auto-generated Method Stub
Super.startelement (URI, LocalName, qName, attributes);
LOG.E ("tag", "Parse tag start");
flag = LocalName;
if (Localname.equals ("item") &&mun==0) {
Datavo = new Datavo ();
Mun=1;
}else if (localname.equals ("item") &&mun==2) {
STEPSVO = new Stepsvo ();
mun=2;
}else if (localname.equals ("steps")) {
Datavo.steps=new arraylist<stepsvo> ();
mun=2;
}
}
Parsing text
@Override
public void characters (char[] ch, int start, int length)
Throws Saxexception {
TODO auto-generated Method Stub
Super.characters (CH, start, length);
String Text=new string (ch, start, length);
LOG.E ("TAG", "Parse text" +text);
if (Flag.equals ("title")) {
Datavo.settitle (text);
} else if (Flag.equals ("tags")) {
Datavo.settags (text);
}else if (flag.equals ("Imtro")) {
Datavo.setimtro (text);
}else if (flag.equals ("ingredients")) {
Datavo.setingredients (text);
}else if (flag.equals ("burden")) {
Datavo.setburden (text);
}else if (flag.equals ("item") &&mun==1) {
Datavo.setalbums (text);
}else if (flag.equals ("img")) {
Stepsvo.setimg (text);
}else if (flag.equals ("step")) {
Stepsvo.setstep (text);
}
}
Parse Label end
@Override
public void EndElement (string uri, String localname, String qName)
Throws Saxexception {
TODO auto-generated Method Stub
Super.endelement (URI, LocalName, QName);
if (Localname.equals ("item") &&mun==2) {
DataVO.steps.add (STEPSVO);
mun=2;
}else if (localname.equals ("item") &&mun==0) {
Data.add (Datavo);
mun=0;
}else if (localname.equals ("steps")) {
mun=0;
}
Flag= "";
}
Parse Document End
@Override
public void Enddocument () throws Saxexception {
TODO auto-generated Method Stub
Super.enddocument ();
}
Get the Outer collection
Public list<datavo> getdatalist () {
return data;

}

}

XML Multilayer nested parsing method sax mode (including network requests)