Parsing this page with Sax

Question

I am trying to parse a webpage, the values i want to parse are included in certain TD tags. Can someone please help me to get along? I am getting a syntax error line1 column62.

Goal is to pass the values to a listview later on, so that it shows Nieuw beltegoed: € 2,50

Any help would be appreciated.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="nl" lang="nl">
<head>
<TABLE class=personaltable cellSpacing=0 cellPadding=0>
 <TBODY>
  <TR class=alternativerow>
   <TD>Nieuw beltegoed:</TD>
   <TD>€ 2,50</TD>
  </TR>
  <TR>
   <TD>Tegoed vorige periode:</TD>
   <TD>€ 3,62</TD>
  </TR>
  <TR class=alternativerow>
   <TD>Tegoed tot 09-11-2011:</TD>
   <TD>€ 1,12</TD>    
  </TR>
  <TR>
   <TD>
   <TD height=25></TD>
  <TR class=alternativerow>
   <TD>Verbruik sinds nieuw tegoed:</TD>
   <TD>€ 3,33</TD>
  </TR>
  <TR>
   <TD>Ongebruikt tegoed:</TD>
   <TD>€ 1,79</TD>
  </TR>
  <TR class=alternativerow>
   <TD class=f-Orange>Verbruik boven bundel:</TD>
   <TD class=f-Orange>€ 0,00</TD>
  </TR>
  <TR>
   <TD>Verbruik dat niet in de bundel zit*:</TD>
   <TD>€ 0,00</TD>
  </TR>
 </TBODY>
</TABLE>
</head>

My Saxhandler so far:

// ===========================================================
    // Fields
    // ===========================================================

    private boolean in_TABLE = false;
    private boolean in_TBODY = false;
    private boolean in_TR = false;
    private boolean in_TD = false;

    private ParsedExampleDataSet myParsedExampleDataSet = new ParsedExampleDataSet();

    // ===========================================================
    // Getter & Setter
    // ===========================================================

    public ParsedExampleDataSet getParsedData() {
            return this.myParsedExampleDataSet;
    }

    // ===========================================================
    // Methods
    // ===========================================================
    @Override
    public void startDocument() throws SAXException {
            this.myParsedExampleDataSet = new ParsedExampleDataSet();
    }

    @Override
    public void endDocument() throws SAXException {
            // Nothing to do
    }

    /** Gets be called on opening tags like: 
     * <tag> 
     * Can provide attribute(s), when xml was like:
     * <tag attribute="attributeValue">*/
    @Override
    public void startElement(String namespaceURI, String localName,
                    String qName, Attributes atts) throws SAXException {
            if (localName.equals("TABLE class=personaltable cellSpacing=0 cellPadding=0")) {
                    this.in_TABLE = true;
            }else if (localName.equals("TBODY")) {
                    this.in_TBODY = true;
            }else if (localName.equals("TR class=alternativerow")) {
                    this.in_TR = true;
            }else if (localName.equals("TD")) {
                    // Extract an Attribute
                    String attrValue = atts.getValue("TD");
                    int i = Integer.parseInt(attrValue);
                    myParsedExampleDataSet.setExtractedInt(i);
            }
    }

    /** Gets be called on closing tags like: 
     * </tag> */
    @Override
    public void endElement(String namespaceURI, String localName, String qName)
                    throws SAXException {
            if (localName.equals("TABLE class=personaltable cellSpacing=0 cellPadding=0")) {
                    this.in_TABLE = false;
            }else if (localName.equals("TBODY")) {
                    this.in_TBODY = false;
            }else if (localName.equals("TR class=alternativerow")) {
                    this.in_TR = false;
            }else if (localName.equals("TD")) {
                    // Nothing to do here
            }
    }

    /** Gets be called on the following structure: 
     * <tag>characters</tag> */
    @Override
public void characters(char ch[], int start, int length) {
            if(this.in_TD){
            myParsedExampleDataSet.setExtractedString(new String(ch, start, length));
    }
}

The SAX parser is designed to parse XML, not HTML. Most HTML pages contain errors regarding their XML structure. For parsing HTML files you should better use a dedicated HTML parser. — Robert, Oct 23 '11 at 12:23
Hi Robert, thx for answering. I am going to use the JSoup parser, ithink it is the best way to achieve my goal. — Lars, Oct 23 '11 at 12:40

score 1 · Accepted Answer · edited May 23 '17 at 12:19

1

to parse HTML page it is easier to use dom than SAX.

Also you can check this post it is answered how to parse html page

edited May 23 '17 at 12:19

Community

1
1

answered Oct 23 '11 at 12:31

Alex

1,068
8
23

Hi ahmed, ok thx for the answer. I already saw the JSoup parser and i also have some code for it but i am strugling to get the 2 elements in a listview. Can you help? – Lars Oct 23 '11 at 12:39
Submit another question that represent your situation (the jSoup issue) and provide enough code to help others help you – ariefbayu Oct 23 '11 at 12:57
But DOM processing requires a lot of RAM. For larger pages this costs RAM and speed on Android. – Robert Oct 23 '11 at 16:31
it depend on the case and size of files. – Alex Oct 23 '11 at 21:49

Parsing this page with Sax

1 Answers1