由于lucene2.0+heritrix一书示例用的网站(http://mobile.pconline.com.cn/,http: //mobile.163.com/)改版了，书上实例不能运行，我又找了一个http://mobile.younet.com/进行开发并成功实现示例，希望感兴趣的同学，近快实践，如果此网站也改了就又得改extractor了，哈哈！ search的Extractor代码如下，（别和书上实例相同）供大家参考：附件里有完整代码
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> --> package com.luceneheritrixbook.extractor.younet; import java.io.BufferedWriter; import java.io.File; import java.io.FileWriter; import java.io.IOException; import java.util.Date; import org.htmlparser.Node; import org.htmlparser.NodeFilter; import org.htmlparser.Parser; import org.htmlparser.filters.AndFilter; import org.htmlparser.filters.HasAttributeFilter; import org.htmlparser.filters.HasChildFilter; import org.htmlparser.filters.TagNameFilter; import org.htmlparser.tags.ImageTag; import org.htmlparser.util.NodeIterator; import org.htmlparser.util.NodeList; import com.luceneheritrixbook.extractor.Extractor; import com.luceneheritrixbook.util.StringUtils; /** * <p></p> * @author cnyqiao@hotmail.com * @date Feb 6, 2009 */ public class ExtractYounetMoblie extends Extractor { @Override public void extract() { BufferedWriter bw = null ; NodeFilter title_filter = new AndFilter( new TagNameFilter( " div " ), new HasAttributeFilter( " class " , " mo_tit " )); NodeFilter attribute_filter = new AndFilter( new TagNameFilter( " p " ), new HasChildFilter( new AndFilter( new TagNameFilter( " span " ), new HasAttributeFilter( " class " , " gn_sp1 blue1 " )))); NodeFilter img_filter = new AndFilter( new TagNameFilter( " span " ), new HasChildFilter( new TagNameFilter( " img " ))); // 提取标题信息 try { // Parser根据过滤器返回所有满足过滤条件的节点 // 迭代逐渐查找 NodeList nodeList = this .getParser().parse(title_filter); NodeIterator it = nodeList.elements(); StringBuffer title = new StringBuffer(); while (it.hasMoreNodes()) { Node node = (Node) it.nextNode(); String[] names = node.toPlainTextString().split( " " ); for ( int i = 0 ; i < names.length; i ++ ) title.append(names[i]).append( " - " ); title.append( new Date().getTime()); // 创建要生成的文件 bw = new BufferedWriter( new FileWriter( new File( this .getOutputPath() + title + " .txt " ))); // 获取当前提取页的完整URL地址 int startPos = this .getInuputFilePath().indexOf( " mirror " ) + 6 ; String url_seg = this .getInuputFilePath().substring(startPos); url_seg = url_seg.replaceAll( " \\\\ " , " / " ); String url = " http:/ " + url_seg; // 写入当前提取页的完整URL地址 bw.write(url + NEWLINE); bw.write(names[ 0 ] + NEWLINE); bw.write(names[ 1 ] + NEWLINE); } // 重置Parser this .getParser().reset(); Parser attNameParser = null ; Parser attValueParser = null ; // Parser parser=new Parser(" http://www.sina.com.cn "); NodeFilter attributeName_filter = new AndFilter( new TagNameFilter( " span " ), new HasAttributeFilter( " class " , " gn_sp1 blue1 " )); NodeFilter attributeValue_filter = new AndFilter( new TagNameFilter( " span " ), new HasAttributeFilter( " class " , " gn_sp2 " )); String attName = "" ; String attValue = "" ; // 迭代逐渐查找 nodeList = this .getParser().parse(attribute_filter); it = nodeList.elements(); while (it.hasMoreNodes()) { Node node = (Node) it.nextNode(); attNameParser = new Parser(); attNameParser.setEncoding( " GB2312 " ); attNameParser.setInputHTML(node.toHtml()); NodeList attNameNodeList = attNameParser.parse(attributeName_filter); attName = attNameNodeList.elements().nextNode().toPlainTextString(); attValueParser = new Parser(); attValueParser.setEncoding( " GB2312 " ); attValueParser.setInputHTML(node.toHtml()); NodeList attValueNodeList = attValueParser.parse(attributeValue_filter); attValue = attValueNodeList.elements().nextNode().toPlainTextString(); bw.write(attName.trim() + attValue.trim()); bw.newLine(); } // 重置Parser this .getParser().reset(); String imgUrl = "" ; String fileType = "" ; // 迭代逐渐查找 nodeList = this .getParser().parse(img_filter); it = nodeList.elements(); while (it.hasMoreNodes()) { Node node = (Node) it.nextNode(); ImageTag imgNode = (ImageTag)node.getChildren().elements().nextNode(); imgUrl = imgNode.getAttribute( " src " ); fileType = imgUrl.trim().substring(imgUrl .lastIndexOf( " . " ) + 1 ); // 生成新的图片的文件名 String new_iamge_file = StringUtils.encodePassword(imgUrl, HASH_ALGORITHM) + " . " + fileType; // imgUrl = new HtmlPaserFilterTest().replace(new_iamge_file, "+", " "); // 利用miorr目录下的图片生成的新的图片 this .copyImage(imgUrl, new_iamge_file); bw.write(SEPARATOR + NEWLINE); bw.write(new_iamge_file + NEWLINE); } } catch (Exception e) { e.printStackTrace(); } finally { try { if (bw != null ) bw.close(); } catch (IOException e){ e.printStackTrace(); } } }}运行书上的heritrix实例，并按书上的默认设置进行抓取如下ＵＲＩ：（请自己分析整理）
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> --> http://mobile.younet.com/files/list_1.htmlhttp://mobile.younet.com/files/list_2.htmlhttp://mobile.younet.com/files/list_3.html