使用HtmlParser的Filter实例：根据id获取相应div文本

public class ParseWork {private Parser parser;public ParseWork(String htmlAddress) throws ParserException {parser = new Parser(htmlAddress);}/** * 获取网页标题和正文组成的文本 * **/protected String getText(String elementId) throws ParserException{NodeFilter TitleFilter = new NodeClassFilter(TitleTag.class);NodeFilter ElementIdFilter = new HasAttributeFilter("id", elementId);OrFilter orFilter = new OrFilter(TitleFilter, ElementIdFilter);  //做一个逻辑OR Filter组合NodeList list = parser.extractAllNodesThatMatch(orFilter);StringBuffer text = new StringBuffer();for (int i = 0; i < list.size(); i++)text = text.append(list.elementAt(i).toPlainTextString() + "\r\n");return text.toString().trim();}public static void main(String[] args) throws ParserException, IOException {ParseWork p = new ParseWork("E://JavaEye新闻.htm");String mainText = p.getText("news_content");//写网页正文文件FileUtils.writeStringToFile(new File("E://javaeye新闻.txt"), mainText, "utf-8");//摘要}}