import java.net.URL; import junit.framework.TestCase; import org.apache.log4j.Logger; import org.htmlparser.Node; import org.htmlparser.NodeFilter; import org.htmlparser.Parser; import org.htmlparser.Tag; import org.htmlparser.beans.LinkBean; import org.htmlparser.filters.NodeClassFilter; import org.htmlparser.filters.OrFilter; import org.htmlparser.filters.TagNameFilter; import org.htmlparser.tags.HeadTag; import org.htmlparser.tags.ImageTag; import org.htmlparser.tags.InputTag; import org.htmlparser.tags.LinkTag; import org.htmlparser.tags.OptionTag; import org.htmlparser.tags.SelectTag; import org.htmlparser.tags.TableColumn; import org.htmlparser.tags.TableRow; import org.htmlparser.tags.TableTag; import org.htmlparser.tags.TitleTag; import org.htmlparser.util.NodeIterator; import org.htmlparser.util.NodeList; import org.htmlparser.util.ParserException; import org.htmlparser.visitors.HtmlPage; import org.htmlparser.visitors.NodeVisitor; import org.htmlparser.visitors.ObjectFindingVisitor; public class T extends TestCase { private static final Logger logger = Logger.getLogger(T.class); public T(String name) { super(name); } /* * 测试ObjectFindVisitor的用法 */ public void testImageVisitor() { try { ImageTag imgLink; ObjectFindingVisitor visitor = new ObjectFindingVisitor(ImageTag.class); Parser parser = new Parser(); parser.setURL("http://www.google.com"); parser.setEncoding(parser.getEncoding()); parser.visitAllNodesWith(visitor); Node[] nodes = visitor.getTags(); for (int i = 0; i < nodes.length; i++) { imgLink = (ImageTag) nodes[i]; logger.fatal("testImageVisitor() ImageURL = " + imgLink.getImageURL()); logger.fatal("testImageVisitor() ImageLocation = " + imgLink.extractImageLocn()); logger.fatal("testImageVisitor() SRC = " + imgLink.getAttribute("SRC")); } } catch (Exception e) { e.printStackTrace(); } } /* * 测试TagNameFilter用法 */ public void testNodeFilter() { try { NodeFilter filter = new TagNameFilter("IMG"); Parser parser = new Parser(); parser.setURL("http://www.google.com"); parser.setEncoding(parser.getEncoding()); NodeList list = parser.extractAllNodesThatMatch(filter); for (int i = 0; i < list.size(); i++) { logger.fatal("testNodeFilter() " + list.elementAt(i).toHtml()); } } catch (Exception e) { e.printStackTrace(); } } /* * 测试NodeClassFilter用法 */ public void testLinkTag() { try { NodeFilter filter = new NodeClassFilter(LinkTag.class); Parser parser = new Parser(); parser.setURL("http://www.google.com"); parser.setEncoding(parser.getEncoding()); NodeList list = parser.extractAllNodesThatMatch(filter); for (int i = 0; i < list.size(); i++) { LinkTag node = (LinkTag) list.elementAt(i); logger.fatal("testLinkTag() Link is :" + node.extractLink()); } } catch (Exception e) { e.printStackTrace(); } } /* * 测试<link href=" text=’text/css’ rel=’stylesheet’ />用法 */ public void testLinkCSS() { try { Parser parser = new Parser(); parser.setInputHTML("<head><title>Link Test</title>" + "<link href=’/test01/css.css' text='text/css' rel='stylesheet' />" + "<link href='/test02/css.css' text='text/css' rel='stylesheet' />" + "</head>" + "<body>"); parser.setEncoding(parser.getEncoding()); for (NodeIterator e = parser.elements(); e.hasMoreNodes();) { Node node = e.nextNode(); logger.fatal("testLinkCSS()" + node.getText() + node.getClass()); } } catch (Exception e) { e.printStackTrace(); } } /* * 测试OrFilter的用法 */ public void testOrFilter() { NodeFilter inputFilter = new NodeClassFilter(InputTag.class); NodeFilter selectFilter = new NodeClassFilter(SelectTag.class); NodeList nodeList = null; try { Parser parser = new Parser(); parser .setInputHTML("<head><title>OrFilter Test</title>" + "<link href='/test01/css.css' text='text/css' rel='stylesheet' />" + "<link href='/test02/css.css' text='text/css' rel='stylesheet' />" + "</head>" + "<body>" + "<input type='text' value='text1′ name='text1′/>" + "<input type='text' value='text2′ name='text2′/>" + "<select><option id='1′>1</option><option id='2′>2</option><option id='3′></option></select>" + "<a href='http://www.yeeach.com'>yeeach.com</a>" + "</body>"); parser.setEncoding(parser.getEncoding()); OrFilter lastFilter = new OrFilter(); lastFilter.setPredicates(new NodeFilter[] { selectFilter, inputFilter }); nodeList = parser.parse(lastFilter); for (int i = 0; i <= nodeList.size(); i++) { if (nodeList.elementAt(i) instanceof InputTag) { InputTag tag = (InputTag) nodeList.elementAt(i); logger.fatal("OrFilter tag name is :" + tag.getTagName() + " ,tag value is:" + tag.getAttribute("value")); } if (nodeList.elementAt(i) instanceof SelectTag) { SelectTag tag = (SelectTag) nodeList.elementAt(i); NodeList list = tag.getChildren(); for (int j = 0; j < list.size(); j++) { OptionTag option = (OptionTag) list.elementAt(j); logger.fatal("OrFilter Option" + option.getOptionText()); } } } } catch (ParserException e) { e.printStackTrace(); } } /* * 测试对<table><tr><td></td></tr></table>的解析 */ public void testTable() { Parser myParser; NodeList nodeList = null; myParser = Parser.createParser("<body> " + "<table id='table1′ >" + "<tr><td>1-11</td><td>1-12</td><td>1-13</td>" + "<tr><td>1-21</td><td>1-22</td><td>1-23</td>" + "<tr><td>1-31</td><td>1-32</td><td>1-33</td></table>" + "<table id='table2′ >" + "<tr><td>2-11</td><td>2-12</td><td>2-13</td>" + "<tr><td>2-21</td><td>2-22</td><td>2-23</td>" + "<tr><td>2-31</td><td>2-32</td><td>2-33</td></table>" + "</body>", "GBK"); NodeFilter tableFilter = new NodeClassFilter(TableTag.class); OrFilter lastFilter = new OrFilter(); lastFilter.setPredicates(new NodeFilter[] { tableFilter }); try { nodeList = myParser.parse(lastFilter); for (int i = 0; i <= nodeList.size(); i++) { if (nodeList.elementAt(i) instanceof TableTag) { TableTag tag = (TableTag) nodeList.elementAt(i); TableRow[] rows = tag.getRows(); for (int j = 0; j < rows.length; j++) { TableRow tr = (TableRow) rows[j]; TableColumn[] td = tr.getColumns(); for (int k = 0; k < td.length; k++) { logger.fatal("<td>" + td[k].toPlainTextString()); } } } } } catch (ParserException e) { e.printStackTrace(); } } /* * 测试NodeVisitor的用法,遍历所有节点 */ public void testVisitorAll() { try { Parser parser = new Parser(); parser.setURL("http://www.google.com"); parser.setEncoding(parser.getEncoding()); NodeVisitor visitor = new NodeVisitor() { public void visitTag(Tag tag) { logger.fatal("testVisitorAll() Tag name is :" + tag.getTagName() + " \n Class is :" + tag.getClass()); } }; parser.visitAllNodesWith(visitor); } catch (ParserException e) { e.printStackTrace(); } } /* * 测试对指定Tag的NodeVisitor的用法 */ public void testTagVisitor() { try { Parser parser = new Parser("<head><title>dddd</title>" + "<link href='/test01/css.css' text='text/css' rel='stylesheet' />" + "<link href='/test02/css.css' text='text/css' rel='stylesheet' />" + "</head>" + "<body>" + "<a href='http://www.yeeach.com'>yeeach.com</a>" + "</body>"); NodeVisitor visitor = new NodeVisitor() { public void visitTag(Tag tag) { if (tag instanceof HeadTag) { logger.fatal("visitTag() HeadTag : Tag name is :" + tag.getTagName() + " \n Class is :" + tag.getClass() + "\n Text is :" + tag.getText()); } else if (tag instanceof TitleTag) { logger.fatal("visitTag() TitleTag : Tag name is :" + tag.getTagName() + " \n Class is :" + tag.getClass() + "\n Text is :" + tag.getText()); } else if (tag instanceof LinkTag) { logger.fatal("visitTag() LinkTag : Tag name is :" + tag.getTagName() + " \n Class is :" + tag.getClass() + "\n Text is :" + tag.getText() + " \n getAttribute is :" + tag.getAttribute("href")); } else { logger.fatal("visitTag() : Tag name is :" + tag.getTagName() + " \n Class is :" + tag.getClass() + "\n Text is :" + tag.getText()); } } }; parser.visitAllNodesWith(visitor); } catch (Exception e) { e.printStackTrace(); } } /* * 测试HtmlPage的用法 */ public void testHtmlPage() { String inputHTML = "<html>" + "<head>" + "<title>Welcome to the HTMLParser website</title>" + "</head>" + "<body>" + "Welcome to HTMLParser" + "<table id='table1′ >" + "<tr><td>1-11</td><td>1-12</td><td>1-13</td>" + "<tr><td>1-21</td><td>1-22</td><td>1-23</td>" + "<tr><td>1-31</td><td>1-32</td><td>1-33</td></table>" + "<table id='table2′ >" + "<tr><td>2-11</td><td>2-12</td><td>2-13</td>" + "<tr><td>2-21</td><td>2-22</td><td>2-23</td>" + "<tr><td>2-31</td><td>2-32</td><td>2-33</td></table>" + "</body>" + "</html>"; Parser parser = new Parser(); try { parser.setInputHTML(inputHTML); parser.setEncoding(parser.getURL()); HtmlPage page = new HtmlPage(parser); parser.visitAllNodesWith(page); logger.fatal("testHtmlPage -title is :" + page.getTitle()); NodeList list = page.getBody(); for (NodeIterator iterator = list.elements(); iterator.hasMoreNodes();) { Node node = iterator.nextNode(); logger.fatal("testHtmlPage -node is :" + node.toHtml()); } } catch (ParserException e) { // TODO Auto-generated catch block e.printStackTrace(); } } /* * 测试LinkBean的用法 */ public void testLinkBean() { Parser parser = new Parser(); LinkBean linkBean = new LinkBean(); linkBean.setURL("http://www.google.com"); URL[] urls = linkBean.getLinks(); for (int i = 0; i < urls.length; i++) { URL url = urls[i]; logger.fatal("testLinkBean() -url is :" + url); } } }