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  1. import java.io.StringReader;
  2. import javax.xml.parsers.DocumentBuilderFactory;
  3. import javax.xml.parsers.DocumentBuilder;
  4. import org.xml.sax.InputSource;
  5. import org.w3c.dom.Document;
  6. import org.w3c.dom.Node;
  7. import org.w3c.dom.NodeList;
  8. import org.w3c.dom.ls.DOMImplementationLS;
  9. import org.w3c.dom.ls.LSSerializer;
  10.  
  11.  
  12. /* http://es.stackoverflow.com/q/21882/127 */
  13. class Ideone
  14. {
  15.  
  16. 	public static Document loadXMLFromString(String xml) throws Exception
  17. 	{
  18. 	    xml = "<Wrapper>" + xml + "</Wrapper>";
  19. 	    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
  20. 	    DocumentBuilder builder = factory.newDocumentBuilder();
  21. 	    InputSource is = new InputSource(new StringReader(xml));
  22. 	    return builder.parse(is);
  23. 	}
  24.  
  25.  
  26. 	public static void main (String[] args) throws java.lang.Exception
  27. 	{
  28. 		String texto = "<!-- quiero eliminar hasta el primer </div> -->\n<DIV id='elid'>soy la primera linea</DIV \n ><div>soy la segunda linea</div>";
  29.  
  30. 		//String -> doc
  31. 		Document doc = loadXMLFromString(texto);
  32.  
  33. 	    //Construir el serializer y sacar la declaración XML
  34. 		DOMImplementationLS lsImpl = (DOMImplementationLS)doc.getImplementation().getFeature("LS", "3.0");
  35. 		LSSerializer lsSerializer = lsImpl.createLSSerializer();
  36. 		lsSerializer.getDomConfig().setParameter("xml-declaration", false);
  37.  
  38. 		//Bucle en todos los nodos de la raíz
  39. 	    Node docRoot = doc.getDocumentElement();
  40. 	    NodeList childNodes = docRoot.getChildNodes();
  41. 	    StringBuilder sb = new StringBuilder();
  42. 	    Boolean divEncontrado = false;
  43. 	    for (int i = 0; i < childNodes.getLength(); i++) {
  44. 	    	if (!divEncontrado) {
  45. 				//Se encontró?
  46. 				divEncontrado = childNodes.item(i).getNodeName().equalsIgnoreCase("div");
  47. 			} else {
  48. 	    		//Si se encontró antes, agregarlo al StringBuilder
  49. 	    		sb.append(lsSerializer.writeToString(childNodes.item(i)));
  50. 			}
  51. 	    }
  52. 	    String resultado = sb.toString();
  53.  
  54. 		System.out.println(resultado);
  55. 	}
  56.  
  57. }
  58.  
  59.  
  60.  
Success #stdin #stdout 0.06s 321152KB
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stdin
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Standard input is empty
stdout
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<div>soy la segunda linea</div>
https://ideone.com/ULAyMw
http://es.stackoverflow.com/q/21882/127
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
secret

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