| Hongqing Liu | 7189829 | 2014-10-15 13:31:32 +0800 | [diff] [blame] | 1 | <html><head><META http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><title>Apache Tomcat Architecture (6.0.41) - Request Process Flow</title><meta name="author" content="Yoav Shapira"><style type="text/css" media="print">
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| Hongqing Liu | fd5ee81 | 2014-05-10 16:32:51 +0800 | [diff] [blame] | 2 | .noPrint {display: none;}
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| 3 | td#mainBody {width: 100%;}
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| 4 | </style></head><body bgcolor="#ffffff" text="#000000" link="#525D76" alink="#525D76" vlink="#525D76"><table border="0" width="100%" cellspacing="0"><!--PAGE HEADER--><tr><td><!--PROJECT LOGO--><a href="http://tomcat.apache.org/"><img src="../images/tomcat.gif" align="right" alt="
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| 5 | The Apache Tomcat Servlet/JSP Container
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| Hongqing Liu | 7189829 | 2014-10-15 13:31:32 +0800 | [diff] [blame] | 6 | " border="0"></a></td><td><h1><font face="arial,helvetica,sanserif">Apache Tomcat 6.0</font></h1><font face="arial,helvetica,sanserif">Version 6.0.41, May 19 2014</font></td><td><!--APACHE LOGO--><a href="http://www.apache.org/"><img src="../images/asf-logo.gif" align="right" alt="Apache Logo" border="0"></a></td></tr></table><table border="0" width="100%" cellspacing="4"><!--HEADER SEPARATOR--><tr><td colspan="2"><hr noshade="noshade" size="1"></td></tr><tr><!--LEFT SIDE NAVIGATION--><td width="20%" valign="top" nowrap="nowrap" class="noPrint"><p><strong>Links</strong></p><ul><li><a href="../index.html">Docs Home</a></li></ul><p><strong>Contents</strong></p><ul><li><a href="index.html">Contents</a></li><li><a href="overview.html">Overview</a></li><li><a href="startup.html">Server Startup</a></li><li><a href="requestProcess.html">Request Process</a></li></ul></td><!--RIGHT SIDE MAIN BODY--><td width="80%" valign="top" align="left" id="mainBody"><h1>Apache Tomcat Architecture</h1><h2>Request Process Flow</h2><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Request Process Flow"><!--()--></a><a name="Request_Process_Flow"><strong>Request Process Flow</strong></a></font></td></tr><tr><td><blockquote>
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| Hongqing Liu | fd5ee81 | 2014-05-10 16:32:51 +0800 | [diff] [blame] | 7 |
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| 8 | <p>
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| 9 | This page describes the process used by Tomcat to handle
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| 10 | an incoming request. This process is largely defined by
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| 11 | the Servlet Specification, which outlines the order
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| 12 | of events that must take place.
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| 13 | </p>
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| 14 |
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| 15 | <table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#828DA6"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="description"><strong>description</strong></a></font></td></tr><tr><td><blockquote>
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| 16 | <p>
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| 17 | TODO
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| 18 | </p>
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| 19 | </blockquote></td></tr></table>
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| 20 |
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| 21 | <table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#828DA6"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="diagram"><strong>diagram</strong></a></font></td></tr><tr><td><blockquote>
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| 22 | <p>
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| 23 | A UML sequence diagram of the request process is available
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| 24 | <a href="requestProcess/requestProcess.pdf">here.</a>
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| 25 | </p>
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| 26 | </blockquote></td></tr></table>
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| 27 |
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| 28 | <table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#828DA6"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="comments"><strong>comments</strong></a></font></td></tr><tr><td><blockquote>
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| 29 | <p>
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| 30 | The Servlet Specification provides many opportunities for
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| 31 | listening in (using Listeners) or modifying (using Filters)
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| 32 | the request handling process even before the request arrives
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| 33 | at the servlet that will handle it.
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| 34 | </p>
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| 35 |
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| 36 | </blockquote></td></tr></table>
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| 37 |
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| 38 | </blockquote></td></tr></table></td></tr><!--FOOTER SEPARATOR--><tr><td colspan="2"><hr noshade="noshade" size="1"></td></tr><!--PAGE FOOTER--><tr><td colspan="2"><div align="center"><font color="#525D76" size="-1"><em>
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| 39 | Copyright © 1999-2014, Apache Software Foundation
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| 40 | </em></font></div></td></tr></table></body></html> |