[Htmlparser-developer] about visitor

[du du <tel...@ya...>]

I want to write a piece of code to implement auto-fill web page form.I try to use NodeVisitor.But I puzzled at :
 
1)String [] tagsToBeFound = {"FORM","INPUT"};
TagFindingVisitor visitor = new TagFindingVisitor(tagsToBeFound);
parser.visitAllNodesWith(visitor);

Node [] allformTags = visitor.getTags(0);
FormTag formtag = (FormTag)allformTags[0];

Node [] allinputTags = visitor.getTags(1);
InputTag inputtag = (InputTag)allinputTags[0];
 
there is an java.lang.ClassCastException: org.htmlparser.tags.Tag
why?
 
2)if I write a customized visitor how do i write visitFormTag and visitInputTag so as to collect all the form tag and input tag together?
 
3)if I use RemarkNode to mark a form tag its relative input tags
together, how to decide the parameter tagContents?
 
thanks for any hints
 



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