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<?xml version="1.0" encoding="ISO-8859-1"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!-- XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX This file is generated from xml source: DO NOT EDIT XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX --><title>Apache mod_rewrite Introduction - Apache HTTP Server</title><link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" /><link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" /><link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /><link href="../images/favicon.ico" rel="shortcut icon" /></head><body id="manual-page"><div id="page-header"><p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p><p class="apache">Apache HTTP Server Version 2.0</p><img alt="" src="../images/feather.gif" /></div><div class="up"><a href="./index.html"><img title="<-" alt="<-" src="../images/left.gif" /></a></div><div id="path"><a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.0</a></div><div id="page-content"><div id="preamble"><h1>Apache mod_rewrite Introduction</h1><div class="toplang"><p><span>Available Languages: </span><a href="../en/rewrite/rewrite_intro.html" title="English"> en </a></p></div><p>This document supplements the <code class="module"><a href="../mod/mod_rewrite.html">mod_rewrite</a></code><a href="../mod/mod_rewrite.html">reference documentation</a>. Itdescribes the basic concepts necessary for use of<code class="module"><a href="../mod/mod_rewrite.html">mod_rewrite</a></code>. Other documents go into greater detail,but this doc should help the beginner get their feet wet.</p></div><div id="quickview"><ul id="toc"><li><img alt="" src="../images/down.gif" /> <a href="#introduction">Introduction</a></li><li><img alt="" src="../images/down.gif" /> <a href="#regex">Regular Expressions</a></li><li><img alt="" src="../images/down.gif" /> <a href="#rewriterule">RewriteRule basics</a></li><li><img alt="" src="../images/down.gif" /> <a href="#flags">Rewrite Flags</a></li><li><img alt="" src="../images/down.gif" /> <a href="#rewritecond">Rewrite conditions</a></li><li><img alt="" src="../images/down.gif" /> <a href="#rewritemap">Rewrite maps</a></li><li><img alt="" src="../images/down.gif" /> <a href="#htaccess">.htaccess files</a></li><li><img alt="" src="../images/down.gif" /> <a href="#EnvVar">Environment Variables</a></li></ul><h3>See also</h3><ul class="seealso"><li><a href="../mod/mod_rewrite.html">Moduledocumentation</a></li><li><a href="rewrite_tech.html">Technical details</a></li><li><a href="rewrite_guide.html">Practical solutions to commonproblems</a></li></ul></div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="section"><h2><a name="introduction" id="introduction">Introduction</a></h2><p>The Apache module <code class="module"><a href="../mod/mod_rewrite.html">mod_rewrite</a></code> is a very powerful andsophisticated module which provides a way to do URL manipulations. Withit, you can do nearly all types of URL rewriting that you may need. Itis, however, somewhat complex, and may be intimidating to the beginner.There is also a tendency to treat rewrite rules as magic incantation,using them without actually understanding what they do.</p><p>This document attempts to give sufficient background so that whatfollows is understood, rather than just copied blindly.</p></div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="section"><h2><a name="regex" id="regex">Regular Expressions</a></h2><p>Basic regex building blocks</p></div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="section"><h2><a name="rewriterule" id="rewriterule">RewriteRule basics</a></h2><p>Basic anatomy of a RewriteRule, with exhaustively annotated simpleexamples.</p></div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="section"><h2><a name="flags" id="flags">Rewrite Flags</a></h2><p>Discussion of the flags to RewriteRule, and when and why one mightuse them.</p></div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="section"><h2><a name="rewritecond" id="rewritecond">Rewrite conditions</a></h2><p>Discussion of RewriteCond, looping, and other related concepts.</p></div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="section"><h2><a name="rewritemap" id="rewritemap">Rewrite maps</a></h2><p>Discussion of RewriteMap, including simple, but heavily annotated,examples.</p></div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="section"><h2><a name="htaccess" id="htaccess">.htaccess files</a></h2><p>Discussion of the differences between rewrite rules in httpd.conf andin .htaccess files.</p></div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="section"><h2><a name="EnvVar" id="EnvVar">Environment Variables</a></h2><p>This module keeps track of two additional (non-standard)CGI/SSI environment variables named <code>SCRIPT_URL</code>and <code>SCRIPT_URI</code>. These contain the<em>logical</em> Web-view to the current resource, while thestandard CGI/SSI variables <code>SCRIPT_NAME</code> and<code>SCRIPT_FILENAME</code> contain the <em>physical</em>System-view. </p><p>Notice: These variables hold the URI/URL <em>as they wereinitially requested</em>, <em>i.e.</em>, <em>before</em> anyrewriting. This is important because the rewriting process isprimarily used to rewrite logical URLs to physicalpathnames.</p><div class="example"><h3>Example</h3><pre>SCRIPT_NAME=/sw/lib/w3s/tree/global/u/rse/.www/index.htmlSCRIPT_FILENAME=/u/rse/.www/index.htmlSCRIPT_URL=/u/rse/SCRIPT_URI=http://en1.engelschall.com/u/rse/</pre></div></div></div><div class="bottomlang"><p><span>Available Languages: </span><a href="../en/rewrite/rewrite_intro.html" title="English"> en </a></p></div><div id="footer"><p class="apache">Copyright 2007 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p><p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div></body></html>⌨️ 快捷键说明
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