Google Git
Sign in
eclipse / www.eclipse.org / jetty / 9781e293de0cc03a6857e304af473e894daf865a / . / documentation / 9.3.0.v20150612 / setting-form-size.html
blob: 47293bcc13b12a70ace9469954ac51dc97aeb84e [file] [log] [blame]
<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Setting Max Form Size</title><link rel="stylesheet" type="text/css" href="css/docbook.css"><meta name="generator" content="DocBook XSL-NS Stylesheets V1.76.1"><meta name="keywords" content="jetty, servlet, servlet-api, cometd, http, websocket, eclipse, maven, java, server, software"><link rel="home" href="index.html" title="Jetty : The Definitive Reference"><link rel="up" href="configuring-contexts.html" title="Chapter&nbsp;5.&nbsp;Configuring Contexts"><link rel="prev" href="custom-error-pages.html" title="Creating Custom Error Pages"><link rel="next" href="configuring-connectors.html" title="Chapter&nbsp;6.&nbsp;Configuring Jetty Connectors"><link xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times" rel="shortcut icon" href="images/favicon.ico"><script type="text/javascript" src="js/shCore.js"></script><script type="text/javascript" src="js/shBrushJava.js"></script><script type="text/javascript" src="js/shBrushXml.js"></script><script type="text/javascript" src="js/shBrushBash.js"></script><script type="text/javascript" src="js/shBrushJScript.js"></script><script type="text/javascript" src="js/shBrushSql.js"></script><script type="text/javascript" src="js/shBrushProperties.js"></script><script type="text/javascript" src="js/shBrushPlain.js"></script><link type="text/css" rel="stylesheet" href="css/shCore.css"><link type="text/css" rel="stylesheet" href="css/shThemeEclipse.css"><link type="text/css" rel="stylesheet" href="css/font-awesome.min.css"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><table xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times"><tr><td style="width: 25%"><a href="http://www.eclipse.org/jetty"><img src="images/jetty-header-logo.png" alt="Jetty Logo"></a><br><span style="font-size: small">
Version: 9.3.0.v20150612</span></td><td style="width: 50%"><script type="text/javascript"> (function() {
var cx = '016459005284625897022:obd4lsai2ds';
var gcse = document.createElement('script');
gcse.type = 'text/javascript';
gcse.async = true;
gcse.src = (document.location.protocol == 'https:' ? 'https:' : 'http:') +
'//www.google.com/cse/cse.js?cx=' + cx;
var s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(gcse, s);
})();
</script><gcse:search></gcse:search></td></tr></table><div xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Setting Max Form Size</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="custom-error-pages.html"><i class="icon-chevron-left"></i> Previous</a>&nbsp;</td><th width="60%" align="center">Chapter&nbsp;5.&nbsp;Configuring Contexts<br><a accesskey="p" href="index.html"><i class="icon-home"></i> Home</a></th><td width="20%" align="right">&nbsp;<a accesskey="n" href="configuring-connectors.html">Next <i class="icon-chevron-right"></i></a></td></tr></table><hr></div><div xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times" class="jetty-callout"><h5 class="callout"><a href="http://www.webtide.com/">Contact the core Jetty developers at
<span class="website">www.webtide.com</span></a></h5><p>
private support for your internal/customer projects ... custom extensions and distributions ... versioned snapshots for indefinite support ...
scalability guidance for your apps and Ajax/Comet projects ... development services from 1 day to full product delivery
</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="setting-form-size"></a>Setting Max Form Size</h2></div></div></div><div class="toc"><dl><dt><span class="section"><a href="setting-form-size.html#d0e4019">For a Single Webapp</a></span></dt><dt><span class="section"><a href="setting-form-size.html#d0e4037">For All Apps on a Server</a></span></dt><dt><span class="section"><a href="setting-form-size.html#d0e4045">For All Apps in the JVM</a></span></dt></dl></div><p>
Jetty limits the amount of data that can post back from a browser or other client to the server. This helps protect the server against denial of service attacks by malicious clients sending huge amounts of data. The default maximum size Jetty permits is 200000 bytes. You can change this default for a particular webapp, for all webapps on a particular Server instance, or all webapps within the same JVM.
</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="d0e4019"></a>For a Single Webapp</h3></div></div></div><p>
The method to invoke is: <code class="code">ContextHandler.setMaxFormContentSize(int maxSize);</code>
</p><p>
You can do this either in a context XML deployment descriptor external to the webapp, or in a <code class="filename">jetty-web.xml</code> file in the webapp's WEB-INF directory.
</p><p>
In either case the syntax of the XML file is the same:
</p><div class="informalexample"><script type="syntaxhighlighter" class="brush: xml;toolbar: false">
<![CDATA[
<Configure class="org.eclipse.jetty.webapp.WebAppContext">
<!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
<!-- Max Form Size -->
<!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
<Set name="maxFormContentSize">200000</Set>
</Configure>
]]>
</script></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="d0e4037"></a>For All Apps on a Server</h3></div></div></div><p>
Set an attribute on the Server instance for which you want to modify the maximum form content size:
</p><div class="informalexample"><script type="syntaxhighlighter" class="brush: xml;toolbar: false">
<![CDATA[
<Configure class="org.eclipse.jetty.server.Server">
<Call name="setAttribute">
<Arg>org.eclipse.jetty.server.Request.maxFormContentSize</Arg>
<Arg>200000</Arg>
</Call>
</Configure>
]]>
</script></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="d0e4045"></a>For All Apps in the JVM</h3></div></div></div><p>
Use the system property <code class="code">org.eclipse.jetty.server.Request.maxFormContentSize</code>. This can be set on the commandline or in the start.ini file.
</p></div></div><script type="text/javascript">
SyntaxHighlighter.all()
</script><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="custom-error-pages.html"><i class="icon-chevron-left"></i> Previous</a>&nbsp;</td><td width="20%" align="center"><a accesskey="u" href="configuring-contexts.html"><i class="icon-chevron-up"></i> Top</a></td><td width="40%" align="right">&nbsp;<a accesskey="n" href="configuring-connectors.html">Next <i class="icon-chevron-right"></i></a></td></tr><tr><td width="40%" align="left" valign="top">Creating Custom Error Pages&nbsp;</td><td width="20%" align="center"><a accesskey="h" href="index.html"><i class="icon-home"></i> Home</a></td><td width="40%" align="right" valign="top">&nbsp;Chapter&nbsp;6.&nbsp;Configuring Jetty Connectors</td></tr></table></div><p xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times"><div class="jetty-callout">
See an error or something missing?
<span class="callout"><a href="http://github.com/jetty-project/jetty-documentation">Contribute to this documentation at
<span class="website"><i class="icon-github"></i> Github!</span></a></span><span style="float: right"><i>(Generated: 2015-06-15T13:18:16-05:00)</i></span></div></p><script xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times" type="text/javascript">
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-1149868-7']);
_gaq.push(['_trackPageview']);
(function() {
var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
})();
</script></body></html>