example for parsing methods using Saxparsers

Step1 : for getting single tag value use below code:

public static ArrayList getListByTag(String msg,final String tag){

 

final ArrayList list=new ArrayList();

try{

list.clear();  

SAXParserFactory factory=SAXParserFactory.newInstance();

SAXParser parser=factory.newSAXParser();

// parser.parse(is, dh)//

parser.parse(new InputSource(new StringReader(msg)),new DefaultHandler(){

boolean tag_value=false; 

@Override

public void startElement(String uri, String localName,

String qName, Attributes attributes) throws SAXException {

super.startElement(uri, localName, qName, attributes);

if(qName.equalsIgnoreCase(tag)){

tag_value=true; 

}

 

} 

@Override

public void characters(char[] ch, int start, int length)

throws SAXException {

super.characters(ch, start, length);

if(tag_value){

list.add(new String(ch,start,length));  

}

}   

@Override

public void endElement(String uri, String localName, String qName)

throws SAXException {

super.endElement(uri, localName, qName);

if(qName.equalsIgnoreCase(tag)){

tag_value=false; 

} 

}

});  

}catch (Exception e) {

e.printStackTrace(); 

}

return list; 

}  

Step 2 : for getting list of tag values use below code:

public static ArrayList> getListofHouseHoldsByTag(String msg , final String tag){

final ArrayList>  list_values=new ArrayList>();  

 

try{

SAXParserFactory factory=SAXParserFactory.newInstance();

SAXParser parser=factory.newSAXParser();

 

parser.parse(new InputSource(new StringReader(msg)),new DefaultHandler(){

ArrayList list;

boolean tag_value=false; 

@Override

public void startElement(String uri, String localName,

String qName, Attributes attributes) throws SAXException {

super.startElement(uri, localName, qName, attributes);

if(qName.equalsIgnoreCase(tag)){

tag_value=true; 

list=new ArrayList();

}  

 

}

@Override

public void characters(char[] ch, int start, int length)

throws SAXException {

super.characters(ch, start, length);

if(tag_value){

list.add(new String(ch,start,length));  

} 

}   

@Override

public void endElement(String uri, String localName, String qName)

throws SAXException {

super.endElement(uri, localName, qName);

if(qName.equalsIgnoreCase(tag)){

tag_value=false;  

list_values.add(list);   

}

}

});  

}catch (Exception e) {

e.printStackTrace(); 

}

return list_values;   

}