Re: [Htmlparser-user] Change Attributes of TDs and TRs
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Re: [Htmlparser-user] Change Attributes of TDs and TRs
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From: Derrick O. <Der...@Ro...> - 2006-01-12 14:46:26
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Gather all the nodes into a list using no filter:
NodeList all_nodes = parser.parse (null);
Then use the table filter on the whole list, process the nodes, and then
turn it back into a string:
NodeList tables = all_nodes.extractAllNodesThatMatch (all_tables);
... process the tables list...
System.out.println (all_nodes.toHtml ());
Fuhrmann, Michael wrote:
>Thanx for you support!
>But actually I don't want to parse the whole thing twice.
>My problem is that the page I want to parse contains many tables.
>Unfortunately these tables contain other tables and so on.......
>Now what I want to do is to change several attributes of the tds and trs for all tables.
>The aim is to cleanup the "dirty" html code in order to generate a pdf finally.
>My thought was to make a for loop which goes through all table tags.
>Or do you know a better solution?
>
>-----Original Message-----
>From: htm...@li... [mailto:htm...@li...] On Behalf Of Derrick Oswald
>Sent: Donnerstag, 12. Januar 2006 01:24
>To: htm...@li...
>Subject: Re: [Htmlparser-user] Change Attributes of TDs and TRs
>
>By the way, after this call:
> NodeList list = parser.parse (all_tables);
>the parser will be at the end of the page and return no more nodes.
>So, this:
> // Seperate all table tags
> * for* (NodeIterator e = parser.elements ();
>e.hasMoreNodes ();)
> e.nextNode ().collectInto (list,all_tables);
>doesn't do anything.
>
>You can use:
> parser.reset ();
>to start again, if that is what you really want to do, but in your case
>you would get duplicates of everything.
>
>
>Third Eye wrote:
>
>
>
>>Table tag object already has a fucntion to get the rows and TableRow
>>has function to get columns. You don't need to iterate yourself.
>>
>>On 1/11/06, Fuhrmann, Michael <mic...@sa...> wrote:
>>
>>
>>
>>
>>>Hi All!
>>>
>>>I want to change several attributes of the td and tr tags of certain tables
>>>but I don't know if do it the right way.
>>>The problem is that I find the right table (only tables with ids) but I
>>>don't reach the td or tr tags….
>>>My code looks like that:
>>>
>>>public void cleanDokument(HttpServletRequest
>>>request,HttpServletResponse response) throws IOException
>>> {
>>> // Get the calling HTML Document define the Writer and open
>>>the connection
>>> URLConnection connection;
>>> URL request_url = new
>>>URL(request.getHeader("referer").toString());
>>>
>>> PrintWriter out = response.getWriter();
>>> connection =
>>>(HttpURLConnection)request_url.openConnection ();
>>>
>>> try
>>> {
>>> Parser parser = new Parser ();
>>> parser.setConnection(connection);
>>>
>>> NodeFilter all_tables = new TagNameFilter("table");
>>> NodeList list = parser.parse (all_tables);
>>> Node[] nodelist;
>>>
>>> // Seperate all table tags
>>> for (NodeIterator e = parser.elements (); e.hasMoreNodes
>>>();)
>>> e.nextNode ().collectInto (list,all_tables);
>>>
>>> nodelist=list.toNodeArray();
>>>
>>> for (int h=0; h<nodelist.length;h++)
>>> {
>>> if (nodelist[h] instanceof TableTag)
>>> {
>>> //for schleife f r die td's und tr's
>>>
>>>if(((TableTag)nodelist[h]).getAttribute("id")!= null)
>>> {
>>> for (int i=0; i<nodelist.length;
>>>i++)
>>> {
>>>
>>>out.println(nodelist.toString());
>>> if(nodelist[i] instanceof
>>>TableRow)
>>> {
>>> out.println("Row
>>>found!");
>>>
>>>((TableRow)nodelist[i]).removeAttribute ("nowrap");
>>> }
>>> else if (nodelist[i]
>>>instanceof TableColumn)
>>> {
>>> out.println("Column
>>>found!");
>>>
>>>((TableColumn)nodelist[i]).removeAttribute ("nowrap");
>>> }
>>> }
>>> out.println(nodelist[h].toHtml());
>>> }
>>> }
>>> else if(nodelist[h] instanceof TableRow ||
>>>nodelist[h] instanceof TableColumn)
>>> {
>>> out.println("Else erreicht!");
>>>
>>>out.println(((TableRow)nodelist[h]).getText());
>>> }
>>> }
>>> //makePdf(out,response);
>>> }
>>> catch(Exception e)
>>> {
>>> out.println("Fehler beim Parsen!");
>>> e.printStackTrace(out);
>>> }
>>> }
>>>
>>>Does my nodelist contain the tr and td tags? Is it right to say instanceof
>>>TableRow????
>>>
>>>Many thanks and best regards
>>>Michael
>>>
>>>
>>>
>>>
>>--
>>Naveen K Kohli
>>http://www.netomatix.com
>>N?HY隊X???'???u???[???????
>>ަ?k??!?? ?W?~?鮆?zk??C? 塧m????@^ǚ??^??z?Z?f?z? j?!?x2??? ????ɫ,???
>>
>>
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>
>
>
>
>
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