[Htmlparser-developer] about lexer.getNextNode().getParent()

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Hello everyone:

i'd like to locate a specific sptring in a html page and then process information around it, so the whole scenario as:

<html> <head>...</head>
<body><table>
<tr><td><p class=tablehead><b>Closing Time</b> </p></td></tr>
<tr>.....</tr>
</table>
</body></html>
 In fact, I can locate "Closing Time", as well as  its lexerNode, and thus, I could further locate its parentNode or children nodes. But when I using 
aNode.getParentNode() always throw null point error. Part of code like:

...
Node aNode = lexer.nextNode();
      Node bNode;
      while(aNode != null){
        if (aNode.getText().indexOf("Closing Time")!=-1){
          bNode = aNode.getParent();
          System.out.println("current node="+bNode.getText());
        }
        aNode = lexer.nextNode();
      }
...

I'll be very appreciate if somebody could give me help. 

henry

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