nekoを使って完全に制御して修理します.

/*
 * Created on Dec 28, 2004
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package edu.columbia.ais.portal.utils;

import java.io.StringReader;
import java.util.ArrayList;
import java.util.HashMap;

import org.apache.xerces.xni.Augmentations;
import org.apache.xerces.xni.QName;
import org.apache.xerces.xni.XMLAttributes;
import org.apache.xerces.xni.XMLString;
import org.apache.xerces.xni.XNIException;
import org.apache.xerces.xni.parser.XMLDocumentFilter;
import org.cyberneko.html.filters.DefaultFilter;
import org.cyberneko.html.filters.ElementRemover;
import org.cyberneko.html.parsers.DOMFragmentParser;
import org.w3c.dom.DocumentFragment;
import org.xml.sax.InputSource;

/**
 * @author dgrimwood
 * 
 * TODO To change the template for this generated type comment go to Window -
 * Preferences - Java - Code Style - Code Templates
 */
public class XHTMLParser {
    public static void parseHTMLFragment(DocumentFragment frag, String html)
            throws Exception {
        try {
            DOMFragmentParser parser = new DOMFragmentParser();
            parser
                    .setFeature(
                            "http://cyberneko.org/html/features/balance-tags/document-fragment",
                            true);
            parser.setProperty(
                    "http://cyberneko.org/html/properties/default-encoding",
                    "UTF-8");
            parser.setFeature("http://cyberneko.org/html/features/report-errors",true);
            parser
                    .setProperty(
                            "http://cyberneko.org/html/properties/names/elems",
                            "match");
            parser.setProperty(
                    "http://cyberneko.org/html/properties/names/attrs",
                    "no-change");
            ElementRemover remover = new ElementRemover();
            remover.acceptElement("a", new String[] { "href", "target", "name",
                    "rel", "shape", "coords", "title" });
            remover.acceptElement("area", new String[] { "alt", "coords",
                    "href", "nohref", "shape", "target" });
            remover.acceptElement("b", null);
            remover.acceptElement("big", null);
            remover.acceptElement("blockquote", new String[] { "cite" });
            remover.acceptElement("br", null);
            remover.acceptElement("caption", null);
            remover.acceptElement("center", null);
            remover.acceptElement("code", null);
            remover.acceptElement("div", new String[] { "align" });
            remover.acceptElement("em", null);
            remover.acceptElement("form", new String[] { "action", "enctype",
                    "method", "type", "target" });
            remover.acceptElement("h1", null);
            remover.acceptElement("h2", null);
            remover.acceptElement("h3", null);
            remover.acceptElement("h4", null);
            remover.acceptElement("h5", null);
            remover.acceptElement("h6", null);
            remover.acceptElement("hr", null);
            remover.acceptElement("i", null);
            remover.acceptElement("img", new String[] { "src", "width",
                    "height", "border", "vspace", "hspace", "alt", "title",
                    "align", "ismap", "usemap" });
            remover.acceptElement("input", new String[] { "alt", "align",
                    "checked", "disabled", "maxlength", "name", "readonly",
                    "src", "size", "type", "value" });
            remover.acceptElement("li", new String[] { "type", "value" });
            remover.acceptElement("map", new String[] { "id", "name" });
            remover.acceptElement("ol", new String[] { "compact", "start",
                    "type" });
            remover.acceptElement("option", new String[] { "disabled", "label",
                    "selected", "value" });
            remover.acceptElement("p", new String[] { "align" });
            remover.acceptElement("pre", new String[] { "width" });
            remover.acceptElement("s", null);
            remover.acceptElement("select", new String[] { "disabled",
                    "multiple", "name", "size" });
            remover.acceptElement("small", null);
            remover.acceptElement("strike", null);
            remover.acceptElement("strong", null);
            remover.acceptElement("sub", null);
            remover.acceptElement("sup", null);
            remover.acceptElement("table", new String[] { "align", "border",
                    "cellpadding", "cellspacing", "summary", "width" });
            remover.acceptElement("td",
                    new String[] { "abbr", "align", "colspan", "height",
                            "nowrap", "rowspan", "valign", "width" });
            remover.acceptElement("textarea", new String[] { "cols", "rows",
                    "disabled", "readonly", "name" });
            remover.acceptElement("th",
                    new String[] { "abbr", "align", "colspan", "height",
                            "nowrap", "rowspan", "valign", "width" });
            remover.acceptElement("tr", new String[] { "align", "valign" });
            remover.acceptElement("tt", null);
            remover.acceptElement("u", null);
            remover.acceptElement("ul", new String[] { "compact", "type" });
            remover.acceptElement("var", null);

            remover.removeElement("head");
            remover.removeElement("style");
            remover.removeElement("meta");
            remover.removeElement("link");
            remover.removeElement("title");
            remover.removeElement("script");
            remover.removeElement("noscript");

            HTMLCleaner cleaner = new HTMLCleaner();
            cleaner.acceptEmptyElement("area");
            cleaner.acceptEmptyElement("br");
            cleaner.acceptEmptyElement("img");
            cleaner.acceptEmptyElement("input");
            cleaner.acceptEmptyElement("hr");
            cleaner.acceptEmptyElement("li");
            cleaner.acceptEmptyElement("option");
            cleaner.acceptEmptyElement("p");
            cleaner.acceptEmptyElement("select");
            cleaner.acceptEmptyElement("td");
            cleaner.acceptEmptyElement("textarea");
            cleaner.acceptEmptyElement("th");
            cleaner.acceptEmptyElement("tr");
            cleaner.acceptEmptyElement("td");
            cleaner.acceptEmptyElement("textarea");
            cleaner.translateTag("i", "em");
            cleaner.translateTag("b", "strong");

            XMLDocumentFilter[] filters = new XMLDocumentFilter[] { remover,
                    cleaner };

            parser.setProperty("http://cyberneko.org/html/properties/filters",
                    filters);
            parser.parse(new InputSource(new StringReader(html)), frag);
        } catch (Exception e) {
            throw e;
        }
    }

    protected static class HTMLCleaner extends DefaultFilter implements
            XMLDocumentFilter {
        ArrayList acceptEmpty = new ArrayList();

        HashMap translateTag = new HashMap();

        boolean stripComments = true;

        boolean stripPI = true;

        boolean ignoreWhiteSpace = false;

        public void acceptEmptyElement(String tagname) {
            acceptEmpty.add(tagname.toLowerCase());
        }

        public void translateTag(String fromtag, String totag) {
            translateTag.put(fromtag.toLowerCase(), totag);
        }

        void translateQName(QName element) {
            String newTag = (String) translateTag.get(element.localpart
                    .toLowerCase());
            if (newTag != null) {
                //System.out.println("Replacing start "+element.localpart+"
                // with "+newTag);
                element.setValues(null, newTag, newTag, null);
            }
        }

        boolean emptyAccepted(QName element) {
            return acceptEmpty.contains(element.localpart.toLowerCase());
        }

        public void emptyElement(QName element, XMLAttributes attributes,
                Augmentations augs) throws XNIException {
            translateQName(element);
            if (emptyAccepted(element)) {
                super.emptyElement(element, attributes, augs);
                //System.out.println("passing empty element:
                // "+element.localpart);
            }
        }

        public void characters(XMLString text, Augmentations augs) {
            if (!ignoreWhiteSpace || text.toString().trim().length() > 0) {
                super.characters(text, augs);
            }
        }

        public void ignorableWhitespace(XMLString text, Augmentations augs) {
            if (!ignoreWhiteSpace) {
                super.ignorableWhitespace(text, augs);
            }
        }

        public void startElement(QName element, XMLAttributes attributes,
                Augmentations augs) throws XNIException {
            translateQName(element);
            super.startElement(element, attributes, augs);
        }

        public void endElement(QName element, Augmentations augs)
                throws XNIException {
            translateQName(element);
            super.endElement(element, augs);
        }

        public void comment(XMLString text, Augmentations augs) {
            if (!stripComments) {
                super.comment(text, augs);
            }
        }

        public void processingInstruction(java.lang.String target,
                XMLString data, Augmentations augs) {
            if (!stripPI) {
                super.processingInstruction(target, data, augs);
            }
        }

    }

}