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Thread: jTidy install problems

  1. #1
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    Default jTidy install problems

    hi i have this codde for scraping data from web site. i have downloaded jtidy and installed jtidy library to package
    but i cant seem to fix the import for:
    "Tidy tidy=new Tidy();" in method "getDocumentFromHTMLInputStream()" //tidy has red line under it
    in method getDocumentFromHTMLInputStream(){
    i have the library aded so what am i doing wrong i allways have a problem like this when i add a library but cant figure out what im doing wrong any help would be great thanks.
    the code is:

    package dompaser;



    import java.io.FileInputStream;
    import java.io.FileNotFoundException;
    import java.io.InputStream;
    import java.util.Vector;
    import javax.xml.xpath.XPath;
    import javax.xml.xpath.XPathConstants;
    import javax.xml.xpath.XPathExpression;
    import javax.xml.xpath.XPathExpressionException;
    import javax.xml.xpath.XPathFactory;
    import org.w3c.dom.Document;
    import org.w3c.dom.Node;
    import org.w3c.dom.NodeList;


    class DOMParser{
    private InputStream is=null;

    public static void main(String[] args)throws FileNotFoundException{
    DOMParser parser =new DOMParser(new FileInputStream("http://sockslist.net"));
    Document d=parser.getDocumentFromHTMLInputStream();
    //this is the root of the html document in most cases its the html element
    Node root=d.getDocumentElement();
    //we can check that for ouurselfs
    System.out.println(root.getNodeName());
    System.out.println("aa"+root.getNodeValue());
    }

    //this is the part that must parse input stream
    public DOMParser(InputStream is){//constructor
    this.is=is;
    }
    //this method uses the input stream corresponding to the
    //htmml file and returns a document corresponding to same returning a document

    public Document getDocumentFromHTMLInputStream(){
    Tidy tidy=new Tidy();//this is the object of parsing library jtidy
    Document doc=tidy.parseDom(is,null);//provoids ipstrream and no need for op strream
    return doc;
    }

    //define an interface###############################
    }
    //interface IValueExtractor {
    ////assuming outputs are vectors of strings
    //Vector<String> getRequiredValue(Document doc)throws XPathExpressionException;
    //}

    class ZillowValueExtractor {
    public Vector<String> getRequestedValues(Document doc)throws XPathExpressionException{
    //remember the xpath from site
    XPathFactory factory=XPathFactory.newInstance();
    XPath xpath=factory.newXPath();
    XPathExpression expr = xpath.compile("xpath location rcapfromsite");

    Object result =expr.evaluate(doc,XPathConstants.NODESET);
    NodeList nodes =(NodeList)result;
    for(int i=0;i<nodes.getLength();i++){
    System.out.println(nodes.item(i).getNodeValue());//LAST WAS JUST .getNodes()
    }
    //todo a maunual search for xpath
    NodeList childNodes =nodes.item(0).getChildNodes();
    for(int i=0 ;i<childNodes.getLength();i++){
    if (childNodes.item(i).getNodeName().equals("strong") );{
    //if this child is a <strong> tag then the price is it child
    String price=childNodes.item(i).getChildNodes().item(0).g etValue();
    System.out.println(price);
    }
    }

    return null;
    }
    }


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: jTidy install problems

    Please copy the full text of the compiler's error messages and post it here.

    Please edit your post and wrap your code with code tags:
    [code=java]
    <YOUR CODE HERE>
    [/code]
    to get highlighting and preserve formatting.
    If you don't understand my answer, don't ignore it, ask a question.

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