?? urlmodifyingvisitortest.java
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// HTMLParser Library $Name: v1_6_20060319 $ - A java-based parser for HTML// http://sourceforge.org/projects/htmlparser// Copyright (C) 2004 Somik Raha//// Revision Control Information//// $Source: /cvsroot/htmlparser/htmlparser/src/org/htmlparser/tests/visitorsTests/UrlModifyingVisitorTest.java,v $// $Author: derrickoswald $// $Date: 2005/03/12 13:39:46 $// $Revision: 1.19 $//// This library is free software; you can redistribute it and/or// modify it under the terms of the GNU Lesser General Public// License as published by the Free Software Foundation; either// version 2.1 of the License, or (at your option) any later version.//// This library is distributed in the hope that it will be useful,// but WITHOUT ANY WARRANTY; without even the implied warranty of// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU// Lesser General Public License for more details.//// You should have received a copy of the GNU Lesser General Public// License along with this library; if not, write to the Free Software// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA//package org.htmlparser.tests.visitorsTests;import org.htmlparser.Parser;import org.htmlparser.Tag;import org.htmlparser.tags.ImageTag;import org.htmlparser.tags.LinkTag;import org.htmlparser.tests.ParserTestCase;import org.htmlparser.util.NodeList;import org.htmlparser.visitors.NodeVisitor;import org.htmlparser.visitors.UrlModifyingVisitor;public class UrlModifyingVisitorTest extends ParserTestCase { static { System.setProperty ("org.htmlparser.tests.visitorsTests.UrlModifyingVisitorTest", "UrlModifyingVisitorTest"); } private static final String HTML_WITH_LINK = "<HTML><BODY>" + "<A HREF=\"mylink.html\"><IMG SRC=\"mypic.jpg\">" + "</A><IMG SRC=\"my second image.gif\">" + "</BODY></HTML>"; // Note: links are only quoted if needed private static final String MODIFIED_HTML = "<HTML><BODY>" + "<A HREF=\"localhost://mylink.html\">" + "<IMG SRC=\"localhost://mypic.jpg\"></A>" + "<IMG SRC=\"localhost://my second image.gif\">" + "</BODY></HTML>"; public UrlModifyingVisitorTest(String name) { super(name); } public void testUrlModificationWithVisitor() throws Exception { Parser parser = Parser.createParser(HTML_WITH_LINK, null); UrlModifyingVisitor visitor = new UrlModifyingVisitor("localhost://"); parser.visitAllNodesWith(visitor); String result = visitor.getModifiedResult(); assertStringEquals("Expected HTML", MODIFIED_HTML, result); } /** * Test a better method of modifying an HTML page. */ public void testPageModification () throws Exception { Parser parser = Parser.createParser (HTML_WITH_LINK, null); NodeList list = parser.parse (null); // no filter // make an inner class that does the same thing as the UrlModifyingVisitor NodeVisitor visitor = new NodeVisitor () { String linkPrefix = "localhost://"; public void visitTag (Tag tag) { if (tag instanceof LinkTag) ((LinkTag)tag).setLink(linkPrefix + ((LinkTag)tag).getLink()); else if (tag instanceof ImageTag) ((ImageTag)tag).setImageURL(linkPrefix + ((ImageTag)tag).getImageURL()); } }; list.visitAllNodesWith (visitor); String result = list.toHtml (); assertStringEquals("Expected HTML", MODIFIED_HTML, result); }}?? 快捷鍵說明
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