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javax.servlet (Servlet API Documentation)
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<H2>
Package javax.servlet
</H2>
The javax.servlet package contains a number of classes and interfaces that
describe and define the contracts between a servlet class and the
runtime environment provided for an instance of such a class by a
conforming servlet container.
<P>
<B>See:</B>
<BR>
<A HREF="#package_description"><B>Description</B></A>
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<B>Interface Summary</B></FONT></TD>
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<TD WIDTH="15%"><B><A HREF="../../javax/servlet/Filter.html" title="interface in javax.servlet">Filter</A></B></TD>
<TD>A filter is an object that performs filtering tasks on either the request to a resource (a servlet or static content), or on the response from a resource, or both.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../javax/servlet/FilterChain.html" title="interface in javax.servlet">FilterChain</A></B></TD>
<TD>A FilterChain is an object provided by the servlet container to the developer
giving a view into the invocation chain of a filtered request for a resource.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../javax/servlet/FilterConfig.html" title="interface in javax.servlet">FilterConfig</A></B></TD>
<TD>A filter configuration object used by a servlet container
to pass information to a filter during initialization.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../javax/servlet/RequestDispatcher.html" title="interface in javax.servlet">RequestDispatcher</A></B></TD>
<TD>Defines an object that receives requests from the client
and sends them to any resource (such as a servlet,
HTML file, or JSP file) on the server.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../javax/servlet/Servlet.html" title="interface in javax.servlet">Servlet</A></B></TD>
<TD>Defines methods that all servlets must implement.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../javax/servlet/ServletConfig.html" title="interface in javax.servlet">ServletConfig</A></B></TD>
<TD>A servlet configuration object used by a servlet container
to pass information to a servlet during initialization.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../javax/servlet/ServletContext.html" title="interface in javax.servlet">ServletContext</A></B></TD>
<TD>Defines a set of methods that a servlet uses to communicate with its
servlet container, for example, to get the MIME type of a file, dispatch
requests, or write to a log file.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../javax/servlet/ServletContextAttributeListener.html" title="interface in javax.servlet">ServletContextAttributeListener</A></B></TD>
<TD>Implementations of this interface receive notifications of
changes to the attribute list on the servlet context of a web application.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../javax/servlet/ServletContextListener.html" title="interface in javax.servlet">ServletContextListener</A></B></TD>
<TD>Implementations of this interface receive notifications about
changes to the servlet context of the web application they are
part of.</TD>
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<TD WIDTH="15%"><B><A HREF="../../javax/servlet/ServletRequest.html" title="interface in javax.servlet">ServletRequest</A></B></TD>
<TD>Defines an object to provide client request information to a servlet.</TD>
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<TD WIDTH="15%"><B><A HREF="../../javax/servlet/ServletRequestAttributeListener.html" title="interface in javax.servlet">ServletRequestAttributeListener</A></B></TD>
<TD>A ServletRequestAttributeListener can be implemented by the
developer interested in being notified of request attribute
changes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../javax/servlet/ServletRequestListener.html" title="interface in javax.servlet">ServletRequestListener</A></B></TD>
<TD>A ServletRequestListener can be implemented by the developer
interested in being notified of requests coming in and out of
scope in a web component.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../javax/servlet/ServletResponse.html" title="interface in javax.servlet">ServletResponse</A></B></TD>
<TD>Defines an object to assist a servlet in sending a response to the client.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../javax/servlet/SingleThreadModel.html" title="interface in javax.servlet">SingleThreadModel</A></B></TD>
<TD><B>Deprecated.</B> <I>As of Java Servlet API 2.4, with no direct
replacement.</I></TD>
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<B>Class Summary</B></FONT></TD>
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<TD WIDTH="15%"><B><A HREF="../../javax/servlet/GenericServlet.html" title="class in javax.servlet">GenericServlet</A></B></TD>
<TD>Defines a generic, protocol-independent
servlet.</TD>
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<TD WIDTH="15%"><B><A HREF="../../javax/servlet/ServletContextAttributeEvent.html" title="class in javax.servlet">ServletContextAttributeEvent</A></B></TD>
<TD>This is the event class for notifications about changes to the attributes of the
servlet context of a web application.</TD>
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<TD WIDTH="15%"><B><A HREF="../../javax/servlet/ServletContextEvent.html" title="class in javax.servlet">ServletContextEvent</A></B></TD>
<TD>This is the event class for notifications about changes to
the servlet context of a web application.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../javax/servlet/ServletInputStream.html" title="class in javax.servlet">ServletInputStream</A></B></TD>
<TD>Provides an input stream for reading binary data from a client
request, including an efficient <code>readLine</code> method
for reading data one line at a time.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../javax/servlet/ServletOutputStream.html" title="class in javax.servlet">ServletOutputStream</A></B></TD>
<TD>Provides an output stream for sending binary data to the
client.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../javax/servlet/ServletRequestAttributeEvent.html" title="class in javax.servlet">ServletRequestAttributeEvent</A></B></TD>
<TD>This is the event class for notifications of changes to the
attributes of the servlet request in an application.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../javax/servlet/ServletRequestEvent.html" title="class in javax.servlet">ServletRequestEvent</A></B></TD>
<TD>Events of this kind indicate lifecycle
events for a ServletRequest.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../javax/servlet/ServletRequestWrapper.html" title="class in javax.servlet">ServletRequestWrapper</A></B></TD>
<TD>Provides a convenient implementation of the ServletRequest interface that
can be subclassed by developers wishing to adapt the request to a Servlet.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../javax/servlet/ServletResponseWrapper.html" title="class in javax.servlet">ServletResponseWrapper</A></B></TD>
<TD>Provides a convenient implementation of the ServletResponse interface that
can be subclassed by developers wishing to adapt the response from a Servlet.</TD>
</TR>
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<B>Exception Summary</B></FONT></TD>
</TR>
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<TD WIDTH="15%"><B><A HREF="../../javax/servlet/ServletException.html" title="class in javax.servlet">ServletException</A></B></TD>
<TD>Defines a general exception a servlet can throw when it
encounters difficulty.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../javax/servlet/UnavailableException.html" title="class in javax.servlet">UnavailableException</A></B></TD>
<TD>Defines an exception that a servlet or filter throws to indicate
that it is permanently or temporarily unavailable.</TD>
</TR>
</TABLE>
<P>
<A NAME="package_description"><!-- --></A><H2>
Package javax.servlet Description
</H2>
<P>
The javax.servlet package contains a number of classes and interfaces that
describe and define the contracts between a servlet class and the
runtime environment provided for an instance of such a class by a
conforming servlet container.
<P>
<P>
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