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<h1 title="Package" class="title">Package&nbsp;javax.servlet</h1>
<div class="docSummary">
<div class="block">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.</div>
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<p>See:&nbsp;<a href="#package_description">Description</a></p>
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<th class="colFirst" scope="col">Interface</th>
<th class="colLast" scope="col">Description</th>
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<tbody>
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<td class="colFirst"><a href="../../javax/servlet/Filter.html" title="interface in javax.servlet">Filter</a></td>
<td class="colLast">
<div class="block">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.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../javax/servlet/FilterChain.html" title="interface in javax.servlet">FilterChain</a></td>
<td class="colLast">
<div class="block">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.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../javax/servlet/FilterConfig.html" title="interface in javax.servlet">FilterConfig</a></td>
<td class="colLast">
<div class="block">A filter configuration object used by a servlet container
 to pass information to a filter during initialization.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../javax/servlet/RequestDispatcher.html" title="interface in javax.servlet">RequestDispatcher</a></td>
<td class="colLast">
<div class="block">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.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../javax/servlet/Servlet.html" title="interface in javax.servlet">Servlet</a></td>
<td class="colLast">
<div class="block">Defines methods that all servlets must implement.</div>
</td>
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<td class="colFirst"><a href="../../javax/servlet/ServletConfig.html" title="interface in javax.servlet">ServletConfig</a></td>
<td class="colLast">
<div class="block">A servlet configuration object used by a servlet container
 to pass information to a servlet during initialization.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../javax/servlet/ServletContext.html" title="interface in javax.servlet">ServletContext</a></td>
<td class="colLast">
<div class="block">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.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../javax/servlet/ServletContextAttributeListener.html" title="interface in javax.servlet">ServletContextAttributeListener</a></td>
<td class="colLast">
<div class="block">Implementations of this interface receive notifications of
 changes to the attribute list on the servlet context of a web application.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../javax/servlet/ServletContextListener.html" title="interface in javax.servlet">ServletContextListener</a></td>
<td class="colLast">
<div class="block">Implementations of this interface receive notifications about
 changes to the servlet context of the web application they are
 part of.</div>
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</tr>
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<td class="colFirst"><a href="../../javax/servlet/ServletRequest.html" title="interface in javax.servlet">ServletRequest</a></td>
<td class="colLast">
<div class="block">Defines an object to provide client request information to a servlet.</div>
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<td class="colFirst"><a href="../../javax/servlet/ServletRequestAttributeListener.html" title="interface in javax.servlet">ServletRequestAttributeListener</a></td>
<td class="colLast">
<div class="block">A ServletRequestAttributeListener can be implemented by the
 developer interested in being notified of request attribute
 changes.</div>
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<td class="colFirst"><a href="../../javax/servlet/ServletRequestListener.html" title="interface in javax.servlet">ServletRequestListener</a></td>
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<div class="block">A ServletRequestListener can be implemented by the developer
 interested in being notified of requests coming in and out of
 scope in a web component.</div>
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<td class="colFirst"><a href="../../javax/servlet/ServletResponse.html" title="interface in javax.servlet">ServletResponse</a></td>
<td class="colLast">
<div class="block">Defines an object to assist a servlet in sending a response to the client.</div>
</td>
</tr>
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<td class="colFirst"><a href="../../javax/servlet/SingleThreadModel.html" title="interface in javax.servlet">SingleThreadModel</a></td>
<td class="colLast">Deprecated
<div class="block"><i>As of Java Servlet API 2.4, with no direct
        replacement.</i></div>
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<th class="colFirst" scope="col">Class</th>
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<td class="colFirst"><a href="../../javax/servlet/GenericServlet.html" title="class in javax.servlet">GenericServlet</a></td>
<td class="colLast">
<div class="block">Defines a generic, protocol-independent
 servlet.</div>
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<td class="colFirst"><a href="../../javax/servlet/ServletContextAttributeEvent.html" title="class in javax.servlet">ServletContextAttributeEvent</a></td>
<td class="colLast">
<div class="block">This is the event class for notifications about changes to the attributes of the
  servlet context of a web application.</div>
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<td class="colFirst"><a href="../../javax/servlet/ServletContextEvent.html" title="class in javax.servlet">ServletContextEvent</a></td>
<td class="colLast">
<div class="block">This is the event class for notifications about changes to
 the servlet context of a web application.</div>
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<td class="colFirst"><a href="../../javax/servlet/ServletInputStream.html" title="class in javax.servlet">ServletInputStream</a></td>
<td class="colLast">
<div class="block">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.</div>
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<td class="colFirst"><a href="../../javax/servlet/ServletOutputStream.html" title="class in javax.servlet">ServletOutputStream</a></td>
<td class="colLast">
<div class="block">Provides an output stream for sending binary data to the
 client.</div>
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<td class="colFirst"><a href="../../javax/servlet/ServletRequestAttributeEvent.html" title="class in javax.servlet">ServletRequestAttributeEvent</a></td>
<td class="colLast">
<div class="block">This is the event class for notifications of changes to the 
 attributes of the servlet request in an application.</div>
</td>
</tr>
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<td class="colFirst"><a href="../../javax/servlet/ServletRequestEvent.html" title="class in javax.servlet">ServletRequestEvent</a></td>
<td class="colLast">
<div class="block">Events of this kind indicate lifecycle
 events for a ServletRequest.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../javax/servlet/ServletRequestWrapper.html" title="class in javax.servlet">ServletRequestWrapper</a></td>
<td class="colLast">
<div class="block">Provides a convenient implementation of the ServletRequest interface that
 can be subclassed by developers wishing to adapt the request to a Servlet.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../javax/servlet/ServletResponseWrapper.html" title="class in javax.servlet">ServletResponseWrapper</a></td>
<td class="colLast">
<div class="block">Provides a convenient implementation of the ServletResponse interface that
 can be subclassed by developers wishing to adapt the response from a Servlet.</div>
</td>
</tr>
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<th class="colFirst" scope="col">Exception</th>
<th class="colLast" scope="col">Description</th>
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<td class="colFirst"><a href="../../javax/servlet/ServletException.html" title="class in javax.servlet">ServletException</a></td>
<td class="colLast">
<div class="block">Defines a general exception a servlet can throw when it
 encounters difficulty.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../javax/servlet/UnavailableException.html" title="class in javax.servlet">UnavailableException</a></td>
<td class="colLast">
<div class="block">Defines an exception that a servlet or filter throws to indicate
 that it is permanently or temporarily unavailable.</div>
</td>
</tr>
</tbody>
</table>
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</ul>
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<h2 title="Package javax.servlet Description">Package javax.servlet Description</h2>
<div class="block">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.</div>
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