html_paser.rar_html解析资源-CSDN文库

共62个文件

java：47个

html：8个

scc：7个

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181 浏览量 2022-09-24 01:55:15 上传评论收藏 101KB RAR 举报

HTML解析是Web开发中的核心技能之一，涉及到网页内容的抓取、处理和分析。本压缩包"html_paser.rar_html 解析"显然包含了与HTML解析相关的资源，特别是文件"2004081416005229964"，可能是一个示例代码或工具。下面我们将深入探讨HTML解析的相关知识点。 HTML（HyperText Markup Language）是一种标记语言，用于创建网页结构。它的主要元素包括标签，如`<html>`、`<head>`、`<body>`、`<p>`、`<a>`等，这些标签定义了网页的内容和样式。解析HTML的过程就是将这些标签和内容转换为可读或可操作的数据结构。 HTML解析器的作用是读取HTML文档，理解和构建DOM（Document Object Model）树。DOM是HTML或XML文档的结构化表示，它将文档内容转化为一系列节点，方便程序进行操作。解析器通常分为两种类型：同步解析（Synchronous Parsing）和异步解析（Asynchronous Parsing）。同步解析通常在加载整个HTML文档后开始工作，直到文档完全解析完成才会执行后续操作。这种方式适用于简单的页面和较小的文件，但对大型或动态加载的页面，可能会造成浏览器阻塞，用户体验下降。异步解析，也称为增量或流式解析，允许浏览器逐步渲染页面，即使文档尚未完全加载。这种解析方式提高了页面加载速度，改善了用户体验，尤其适合现代Web应用。 HTML解析器的性能和出错率是衡量其质量的重要指标。高性能的解析器能够在短时间内处理大量HTML代码，而低出错率则意味着它能够正确处理各种语法错误或不标准的HTML，这对于处理互联网上大量非标准的网页尤其重要。在实际开发中，我们常使用的HTML解析库有JavaScript的DOM API，如`document.querySelector`和`document.querySelectorAll`，以及第三方库如jsdom；Python的BeautifulSoup和lxml；Java的Jsoup等。这些库提供了方便的方法来查询、修改和遍历HTML文档。例如，"2004081416005229964"这个文件可能是使用某种编程语言实现的HTML解析示例，可能包含如何查找特定标签、提取链接、处理嵌套结构等操作。通过学习和理解这个示例，开发者可以更好地掌握HTML解析技巧，提升自动化脚本或爬虫项目的能力。 HTML解析是Web开发中不可或缺的一部分，理解和掌握高效、稳健的解析方法对于任何前端或后端开发者都至关重要。通过深入研究"html_paser.rar_html 解析"中的资源，我们可以提升这方面的能力，更好地应对网页数据处理的挑战。

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html_paser.rar （62个子文件）

2004081416005229964

com

kizna

htmlTests

utilTests

HTMLLinkProcessorTest.java 3KB

package.html 2KB

vssver.scc 64B

HTMLImageTagTest.java 8KB

HTMLLinkTagTest.java 15KB

package.html 2KB

AllTests.java 2KB

HTMLJspTagTest.java 5KB

HTMLTagTest.java 16KB

scannersTests

HTMLTitleScannerTest.java 2KB

package.html 2KB

AllTests.java 2KB

HTMLMetaTagScannerTest.java 5KB

HTMLTagScannerTest.java 5KB

HTMLImageScannerTest.java 9KB

HTMLScriptScannerTest.java 5KB

vssver.scc 192B

HTMLStyleScannerTest.java 7KB

HTMLAppletScannerTest.java 4KB

HTMLLinkScannerTest.java 11KB

vssver.scc 176B

HTMLRemarkNodeTest.java 4KB

HTMLStringNodeTest.java 5KB

HTMLScriptTagTest.java 4KB

html

tags

HTMLMetaTag.java 1KB

HTMLScriptTag.java 4KB

HTMLLinkTag.java 6KB

HTMLDoctypeTag.java 3KB

HTMLStyleTag.java 2KB

package.html 2KB

HTMLTag.java 15KB

HTMLImageTag.java 2KB

HTMLTitleTag.java 972B

HTMLJspTag.java 3KB

HTMLAppletTag.java 6KB

vssver.scc 224B

HTMLEndTag.java 4KB

HTMLReader.java 5KB

HTMLRemarkNode.java 5KB

package.html 2KB

parserapplications

Robot.java 4KB

MailRipper.java 4KB

package.html 2KB

vssver.scc 80B

HTMLNode.java 2KB

HTMLStringNode.java 4KB

scanners

HTMLLinkScanner.java 8KB

HTMLMetaTagScanner.java 2KB

HTMLScriptScanner.java 6KB

HTMLImageScanner.java 5KB

HTMLTitleScanner.java 2KB

HTMLAppletScanner.java 6KB

package.html 2KB

HTMLDoctypeScanner.java 4KB

HTMLJspScanner.java 4KB

vssver.scc 208B

HTMLTagScanner.java 7KB

HTMLStyleScanner.java 5KB

HTMLParser.java 14KB

util

HTMLLinkProcessor.java 5KB

package.html 2KB

vssver.scc 64B

// HTMLParser Library v1.1 - A java-based parser for HTML // Copyright (C) Dec 31, 2000 Somik Raha // // 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 // // For any questions or suggestions, you can write to me at : // Email :somik@kizna.com // // Postal Address : // Somik Raha // R&D Team // Kizna Corporation // Hiroo ON Bldg. 2F, 5-19-9 Hiroo, // Shibuya-ku, Tokyo, // 150-0012, // JAPAN // Tel : +81-3-54752646 // Fax : +81-3-5449-4870 // Website : www.kizna.com package com.kizna.htmlTests; import java.io.BufferedReader; import java.util.Enumeration; import java.util.Hashtable; import com.kizna.html.*; import com.kizna.html.tags.*; import com.kizna.html.scanners.*; import java.io.StringReader; import junit.framework.TestCase; import junit.framework.TestSuite; /** * Insert the type's description here. * Creation date: (6/17/2001 3:59:52 PM) * @author: Administrator */ public class HTMLTagTest extends TestCase { /** * HTMLStringNodeTest constructor comment. * @param name java.lang.String */ public HTMLTagTest(String name) { super(name); } public static void main(String[] args) { new junit.awtui.TestRunner().start(new String[] {"com.kizna.htmlTests.HTMLTagTest"}); } /** * Insert the method's description here. * Creation date: (6/4/2001 11:22:36 AM) * @return junit.framework.TestSuite */ public static TestSuite suite() { TestSuite suite = new TestSuite(HTMLTagTest.class); return suite; } /** * The bug being reproduced is this : <BR> * <BODY aLink=#ff0000 bgColor=#ffffff link=#0000cc onload=setfocus() text=#000000 <BR> * vLink=#551a8b> * The above line is incorrectly parsed in that, the BODY tag is not identified. * Creation date: (6/17/2001 4:01:06 PM) */ public void testBodyTagBug1() { String testHTML = new String("<BODY aLink=#ff0000 bgColor=#ffffff link=#0000cc onload=setfocus() text=#000000\nvLink=#551a8b>"); StringReader sr = new StringReader(testHTML); HTMLReader reader = new HTMLReader(new BufferedReader(sr),5000); HTMLParser parser = new HTMLParser(reader); HTMLNode [] node = new HTMLNode[10]; int i = 0; for (Enumeration e = parser.elements();e.hasMoreElements();) { node[i++] = (HTMLNode)e.nextElement(); } assertEquals("There should be 1 node identified",new Integer(1),new Integer(i)); // The node should be an HTMLTag assertTrue("Node should be a HTMLTag",node[0] instanceof HTMLTag); HTMLTag tag = (HTMLTag)node[0]; assertEquals("Contents of the tag","BODY aLink=#ff0000 bgColor=#ffffff link=#0000cc onload=setfocus() text=#000000\nvLink=#551a8b",tag.getText()); } /** * The following should be identified as a tag : <BR> * <MYTAG abcd\n"+ * "efgh\n"+ * "ijkl\n"+ * "mnop> * Creation date: (6/17/2001 5:27:42 PM) */ public void testLargeTagBug() { String testHTML = new String( "<MYTAG abcd\n"+ "efgh\n"+ "ijkl\n"+ "mnop>" ); StringReader sr = new StringReader(testHTML); HTMLReader reader = new HTMLReader(new BufferedReader(sr),5000); HTMLParser parser = new HTMLParser(reader); HTMLNode [] node = new HTMLNode[10]; int i = 0; for (Enumeration e = parser.elements();e.hasMoreElements();) { node[i++] = (HTMLNode)e.nextElement(); } assertEquals("There should be 1 node identified",new Integer(1),new Integer(i)); // The node should be an HTMLTag assertTrue("Node should be a HTMLTag",node[0] instanceof HTMLTag); HTMLTag tag = (HTMLTag)node[0]; assertEquals("Contents of the tag","MYTAG abcd\nefgh\nijkl\nmnop",tag.getText()); } /** * Bug reported by Gordon Deudney 2002-03-15 * Nested JSP Tags were not working */ public void testNestedTags() { HTMLEndTag etag; String s = "input type=\"text\" value=\"<%=\"test\"%>\" name=\"text\""; String line = "<"+s+">"; StringReader sr = new StringReader(line); HTMLReader reader = new HTMLReader(new BufferedReader(sr),5000); HTMLParser parser = new HTMLParser(reader); HTMLNode [] node = new HTMLNode[10]; int i = 0; for (Enumeration e = parser.elements();e.hasMoreElements(); ) { node[i++] = (HTMLNode)e.nextElement(); } // Check the no of nodes found (should be only one) assertEquals("Number of nodes found", 1,i); assertTrue("The node found should have been an HTMLTag",node[0] instanceof HTMLTag); HTMLTag tag = (HTMLTag) node[0]; assertEquals("Tag Contents",s,tag.getText()); } /** * Test parseParameter method * Created by Kaarle Kaila (august 2001) * the tag name is here G */ public void testParseParameter3(){ HTMLTag tag; HTMLEndTag etag; HTMLStringNode snode; Object o=null; String lin1 = "<DIV class=\"userData\" id=\"oLayout\" name=\"oLayout\"></DIV>"; StringReader sr = new StringReader(lin1); HTMLReader reader = new HTMLReader(new BufferedReader(sr),5000); HTMLParser parser = new HTMLParser(reader); Enumeration en = parser.elements(); Hashtable h; boolean testEnd=true; // test end of first part String a,href,myPara,myValue,nice; try { if (en.hasMoreElements()) { o = en.nextElement(); tag = (HTMLTag)o; h = tag.parseParameters(); String classValue= (String)h.get("CLASS"); assertEquals ("The class value should be ","userData",classValue); } } catch (ClassCastException ce) { fail("Bad class element = " + o.getClass().getName()); } } /** * Test parseParameter method * Created by Kaarle Kaila (august 2001) * the tag name is here A (and should be eaten up by linkScanner) */ public void testParseParameterA(){ HTMLTag tag; HTMLEndTag etag; HTMLStringNode snode; Object o=null; String lin1 = "<A href=\"http://www.iki.fi/kaila\" myParameter yourParameter=\"Kaarle\">Kaarle's homepage</A><p>Paragraph</p>"; StringReader sr = new StringReader(lin1); HTMLReader reader = new HTMLReader(new BufferedReader(sr),5000); HTMLParser parser = new HTMLParser(reader); Enumeration en = parser.elements(); Hashtable h; boolean testEnd=true; // test end of first part String a,href,myPara,myValue,nice; try { if (en.hasMoreElements()) { o = en.nextElement(); tag = (HTMLTag)o; h = tag.parseParameters(); a = (String)h.get(tag.TAGNAME); href = (String)h.get("HREF"); myValue = (String)h.get("MYPARAMETER"); nice = (String)h.get("YOURPARAMETER"); assertEquals ("Link tag (A)",a,"A"); assertEquals ("href value",href,"http://www.iki.fi/kaila"); assertEquals ("myparameter value",myValue,""); assertEquals ("yourparameter value",nice,"Kaarle"); // } } if (!(o instanceof HTMLLinkTag)) { // linkscanner has ea

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