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+<html><head><META http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><title>Apache Tomcat 7 (7.0.42) - Documentation Index</title><meta name="author" content="Craig R. McClanahan"><meta name="author" content="Remy Maucherat"><meta name="author" content="Yoav Shapira"><style type="text/css" media="print">

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+        </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="

+      The Apache Tomcat Servlet/JSP Container

+    " border="0"></a></td><td><h1><font face="arial,helvetica,sanserif">Apache Tomcat 7</font></h1><font face="arial,helvetica,sanserif">Version 7.0.42, Jul 2 2013</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 size="1"></td></tr><tr><!--LEFT SIDE NAVIGATION--><td width="20%" valign="top" nowrap class="noPrint"><p><strong>Links</strong></p><ul><li><a href="index.html">Docs Home</a></li><li><a href="http://wiki.apache.org/tomcat/FAQ">FAQ</a></li><li><a href="#comments_section">User Comments</a></li></ul><p><strong>User Guide</strong></p><ul><li><a href="introduction.html">1) Introduction</a></li><li><a href="setup.html">2) Setup</a></li><li><a href="appdev/index.html">3) First webapp</a></li><li><a href="deployer-howto.html">4) Deployer</a></li><li><a href="manager-howto.html">5) Manager</a></li><li><a href="realm-howto.html">6) Realms and AAA</a></li><li><a href="security-manager-howto.html">7) Security Manager</a></li><li><a href="jndi-resources-howto.html">8) JNDI Resources</a></li><li><a href="jndi-datasource-examples-howto.html">9) JDBC DataSources</a></li><li><a href="class-loader-howto.html">10) Classloading</a></li><li><a href="jasper-howto.html">11) JSPs</a></li><li><a href="ssl-howto.html">12) SSL</a></li><li><a href="ssi-howto.html">13) SSI</a></li><li><a href="cgi-howto.html">14) CGI</a></li><li><a href="proxy-howto.html">15) Proxy Support</a></li><li><a href="mbeans-descriptor-howto.html">16) MBean Descriptor</a></li><li><a href="default-servlet.html">17) Default Servlet</a></li><li><a href="cluster-howto.html">18) Clustering</a></li><li><a href="balancer-howto.html">19) Load Balancer</a></li><li><a href="connectors.html">20) Connectors</a></li><li><a href="monitoring.html">21) Monitoring and Management</a></li><li><a href="logging.html">22) Logging</a></li><li><a href="apr.html">23) APR/Native</a></li><li><a href="virtual-hosting-howto.html">24) Virtual Hosting</a></li><li><a href="aio.html">25) Advanced IO</a></li><li><a href="extras.html">26) Additional Components</a></li><li><a href="maven-jars.html">27) Mavenized</a></li><li><a href="security-howto.html">28) Security Considerations</a></li><li><a href="windows-service-howto.html">29) Windows Service</a></li><li><a href="windows-auth-howto.html">30) Windows Authentication</a></li><li><a href="jdbc-pool.html">31) Tomcat's JDBC Pool</a></li><li><a href="web-socket-howto.html">32) WebSocket</a></li></ul><p><strong>Reference</strong></p><ul><li><a href="RELEASE-NOTES.txt">Release Notes</a></li><li><a href="config/index.html">Configuration</a></li><li><a href="api/index.html">Tomcat Javadocs</a></li><li><a href="servletapi/index.html">Servlet Javadocs</a></li><li><a href="jspapi/index.html">JSP 2.2 Javadocs</a></li><li><a href="elapi/index.html">EL 2.2 Javadocs</a></li><li><a href="http://tomcat.apache.org/connectors-doc/">JK 1.2 Documentation</a></li></ul><p><strong>Apache Tomcat Development</strong></p><ul><li><a href="building.html">Building</a></li><li><a href="changelog.html">Changelog</a></li><li><a href="http://wiki.apache.org/tomcat/TomcatVersions">Status</a></li><li><a href="developers.html">Developers</a></li><li><a href="architecture/index.html">Architecture</a></li><li><a href="funcspecs/index.html">Functional Specs.</a></li><li><a href="tribes/introduction.html">Tribes</a></li></ul></td><!--RIGHT SIDE MAIN BODY--><td width="80%" valign="top" align="left" id="mainBody"><h1>Documentation Index</h1><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Introduction"><strong>Introduction</strong></a></font></td></tr><tr><td><blockquote>

+

+<p>This is the top-level entry point of the documentation bundle for the

+<strong>Apache Tomcat</strong> Servlet/JSP container.  Apache Tomcat version 7.0

+implements the Servlet 3.0 and JavaServer Pages 2.2

+<a href="http://wiki.apache.org/tomcat/Specifications">specifications</a> from the

+<a href="http://www.jcp.org">Java Community Process</a>, and includes many

+additional features that make it a useful platform for developing and deploying

+web applications and web services.</p>

+

+<p>Select one of the links from the navigation menu (to the left) to drill

+down to the more detailed documentation that is available.  Each available

+manual is described in more detail below.</p>

+

+</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Apache Tomcat User Guide"><!--()--></a><a name="Apache_Tomcat_User_Guide"><strong>Apache Tomcat User Guide</strong></a></font></td></tr><tr><td><blockquote>

+

+<p>The following documents will assist you in downloading, installing

+Apache Tomcat 7, and using many of the Apache Tomcat features.</p>

+

+<ol>

+<li><a href="introduction.html"><strong>Introduction</strong></a> - A

+    brief, high level, overview of Apache Tomcat.</li>

+<li><a href="setup.html"><strong>Setup</strong></a> - How to install and run

+    Apache Tomcat on a variety of platforms.</li>

+<li><a href="appdev/index.html"><strong>First web application</strong></a>

+    - An introduction to the concepts of a <em>web application</em> as defined

+    in the Servlet Specification.  Covers basic organization of your web application

+    source tree, the structure of a web application archive, and an

+    introduction to the web application deployment descriptor

+    (<code>/WEB-INF/web.xml</code>).</li>

+<li><a href="deployer-howto.html"><strong>Deployer</strong></a> -

+    Operating the Apache Tomcat Deployer to deploy, precompile, and validate web

+    applications.</li>

+<li><a href="manager-howto.html"><strong>Manager</strong></a> -

+    Operating the <strong>Manager</strong> web app to deploy, undeploy, and

+    redeploy applications while Apache Tomcat is running.</li>

+<li><a href="realm-howto.html"><strong>Realms and Access Control</strong></a>

+    - Description of how to configure <em>Realms</em> (databases of users,

+    passwords, and their associated roles) for use in web applications that

+    utilize <em>Container Managed Security</em>.</li>

+<li><a href="security-manager-howto.html"><strong>Security Manager</strong></a>

+    - Configuring and using a Java Security Manager to

+    support fine-grained control over the behavior of your web applications.

+    </li>

+<li><a href="jndi-resources-howto.html"><strong>JNDI Resources</strong></a>

+    - Configuring standard and custom resources in the JNDI naming context

+    that is provided to each web application.</li>

+<li><a href="jndi-datasource-examples-howto.html">

+    <strong>JDBC DataSource</strong></a>

+    - Configuring a JNDI DataSoure with a DB connection pool.

+    Examples for many popular databases.</li>

+<li><a href="class-loader-howto.html"><strong>Classloading</strong></a>

+    - Information about class loading in Apache Tomcat, including where to place

+    your application classes so that they are visible.</li>

+<li><a href="jasper-howto.html"><strong>JSPs</strong></a>

+    - Information about Jasper configuration, as well as the JSP compiler

+    usage.</li>

+<li><a href="ssl-howto.html"><strong>SSL</strong></a> -

+    Installing and

+    configuring SSL support so that your Apache Tomcat will serve requests using

+    the <code>https</code> protocol.</li>

+<li><a href="ssi-howto.html"><strong>SSI</strong></a> -

+    Using Server Side Includes in Apache Tomcat.</li>

+<li><a href="cgi-howto.html"><strong>CGI</strong></a> -

+    Using CGIs with Apache Tomcat.</li>

+<li><a href="proxy-howto.html"><strong>Proxy Support</strong></a> -

+    Configuring Apache Tomcat to run behind a proxy server (or a web server

+    functioning as a proxy server).</li>

+<li><a href="mbeans-descriptor-howto.html"><strong>MBean Descriptor</strong></a> -

+    Configuring MBean descriptors files for custom components.</li>

+<li><a href="default-servlet.html"><strong>Default Servlet</strong></a> -

+    Configuring the default servlet and customizing directory listings.</li>

+<li><a href="cluster-howto.html"><strong>Apache Tomcat Clustering</strong></a> -

+    Enable session replication in a Apache Tomcat environment.</li>

+<li><a href="balancer-howto.html"><strong>Balancer</strong></a> -

+    Configuring, using, and extending the load balancer application.</li>

+<li><a href="connectors.html"><strong>Connectors</strong></a> -

+    Connectors available in Apache Tomcat, and native web server integration.</li>

+<li><a href="monitoring.html"><strong>Monitoring and Management</strong></a> -

+    Enabling JMX Remote support, and using tools to monitor and manage Apache Tomcat.</li>

+<li><a href="logging.html"><strong>Logging</strong></a> -

+    Configuring logging in Apache Tomcat.</li>

+<li><a href="apr.html"><strong>Apache Portable Runtime</strong></a> -

+    Using APR to provide superior performance, scalability and better

+    integration with native server technologies.</li>

+<li><a href="virtual-hosting-howto.html"><strong>Virtual Hosting</strong></a> -

+    Configuring virtual hosting in Apache Tomcat.</li>

+<li><a href="aio.html"><strong>Advanced IO</strong></a> -

+    Extensions available over regular, blocking IO.</li>

+<li><a href="extras.html"><strong>Additional Components</strong></a> -

+    Obtaining additional, optional components.</li>

+<li><a href="maven-jars.html"><strong>Using Tomcat libraries with Maven</strong></a> -

+    Obtaining Tomcat jars through Maven.</li>

+<li><a href="security-howto.html"><strong>Security Considerations</strong></a> -

+    Options to consider when securing an Apache Tomcat installation.</li>

+<li><a href="windows-service-howto.html"><strong>Windows Service</strong></a> -

+    Running Tomcat as a service on Microsoft Windows.</li>

+<li><a href="windows-auth-howto.html"><strong>Windows Authentication</strong></a> -

+    Configuring Tomcat to use integrated Windows authentication.</li>

+<li><a href="jdbc-pool.html"><strong>High Concurrency JDBC Pool</strong></a> -

+    Configuring Tomcat to use an alternative JDBC pool.</li>

+<li><a href="web-socket-howto.html"><strong>WebSocket support</strong></a> -

+    Developing WebSocket applications for Apache Tomcat.</li>

+

+</ol>

+

+</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Reference"><strong>Reference</strong></a></font></td></tr><tr><td><blockquote>

+

+<p>The following documents are aimed at <em>System Administrators</em> who

+are responsible for installing, configuring, and operating an Apache Tomcat server.

+</p>

+<ul>

+<li><a href="RELEASE-NOTES.txt"><strong>Release notes</strong></a>

+    - Known issues in this Apache Tomcat release.

+    </li>

+<li><a href="config/index.html"><strong>Apache Tomcat Server Configuration Reference</strong></a>

+    - Reference manual that documents all available elements and attributes

+      that may be placed into the Apache Tomcat <code>conf/server.xml</code> file.

+    </li>

+<li><a href="http://tomcat.apache.org/connectors-doc/index.html"><strong>JK Documentation</strong></a>

+    - Complete documentation and HOWTOs on the JK native webserver connector,

+      used to interface Apache Tomcat with servers like Apache HTTPd, IIS

+      and others.</li>

+<li>Servlet 3.0

+    <a href="http://jcp.org/aboutJava/communityprocess/final/jsr315/index.html">

+    <strong>Specification</strong></a> and

+    <a href="http://docs.oracle.com/javaee/6/api/index.html?javax/servlet/package-summary.html">

+    <strong>Javadoc</strong></a>

+    </li>

+<li><a href="http://jcp.org/aboutJava/communityprocess/mrel/jsr245/index.html">

+    <strong>JSP 2.2 and EL 2.2 Specifications</strong></a>,

+    <a href="http://docs.oracle.com/javaee/6/api/index.html?javax/servlet/jsp/package-summary.html">

+    <strong>JSP 2.2 Javadoc (note it is labelled as JSP 2.1)</strong></a>,

+    <a href="http://docs.oracle.com/javaee/6/api/index.html?javax/el/package-summary.html">

+    <strong>EL 2.2 Javadoc</strong></a>

+    </li>

+</ul>

+

+</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Apache Tomcat Developers"><!--()--></a><a name="Apache_Tomcat_Developers"><strong>Apache Tomcat Developers</strong></a></font></td></tr><tr><td><blockquote>

+

+<p>The following documents are for Java developers who wish to contribute to

+the development of the <em>Apache Tomcat</em> project.</p>

+<ul>

+<li><a href="building.html"><strong>Building from Source</strong></a> -

+    Details the steps necessary to download Apache Tomcat source code (and the

+    other packages that it depends on), and build a binary distribution from

+    those sources.

+    </li>

+<li><a href="changelog.html"><strong>Changelog</strong></a> - Details the

+    changes made to Apache Tomcat.

+    </li>

+<li><a href="http://wiki.apache.org/tomcat/TomcatVersions"><strong>Status</strong></a> -

+    Apache Tomcat development status.

+    </li>

+<li><a href="developers.html"><strong>Developers</strong></a> - List of active

+    Apache Tomcat contributors.

+    </li>

+<li><a href="funcspecs/index.html"><strong>Functional Specifications</strong></a>

+    - Requirements specifications for features of the <em>Catalina</em> servlet

+    container portion of Apache Tomcat.</li>

+<li><a href="api/index.html"><strong>Javadocs</strong></a>

+    - Javadoc API documentation for Apache Tomcat's internals.</li>

+<li><a href="architecture/index.html"><strong>Apache Tomcat Architecture</strong></a>

+    - Documentation of the Apache Tomcat Server Architecture.</li>

+</ul>

+

+</blockquote></td></tr></table></td></tr><tr class="noPrint"><td width="20%" valign="top" nowrap class="noPrint"></td><td width="80%" valign="top" align="left"><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="comments_section" id="comments_section"><strong>Comments</strong></a></font></td></tr><tr><td><blockquote><p class="notice"><strong>Notice: </strong>This comments section collects your suggestions

+              on improving documentation for Apache Tomcat.<br><br>

+              If you have trouble and need help, read

+              <a href="http://tomcat.apache.org/findhelp.html">Find Help</a> page

+              and ask your question on the tomcat-users

+              <a href="http://tomcat.apache.org/lists.html">mailing list</a>.

+              Do not ask such questions here. This is not a Q&amp;A section.<br><br>

+              The Apache Comments System is explained <a href="/tomcat-7.0-doc/comments.html">here</a>.

+              Comments may be removed by our moderators if they are either

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+        Copyright &copy; 1999-2013, Apache Software Foundation

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