See: Description
| Interface | Description | 
|---|---|
| HttpServletRequest | Extends the  ServletRequestinterface to provide request
 information for HTTP servlets. | 
| HttpServletResponse | Extends the  ServletResponseinterface to provide HTTP-specific
 functionality in sending a response. | 
| HttpSession | Provides a way to identify a user across more than one page request or visit
 to a Web site and to store information about that user. | 
| HttpSessionActivationListener | Objects that are bound to a session may listen to container events notifying
 them that sessions will be passivated and that session will be activated. | 
| HttpSessionAttributeListener | This listener interface can be implemented in order to get notifications of
 changes to the attribute lists of sessions within this web application. | 
| HttpSessionBindingListener | Causes an object to be notified when it is bound to or unbound from a
 session. | 
| HttpSessionContext | Deprecated As of Java(tm) Servlet API 2.1 for security reasons, with no
             replacement. | 
| HttpSessionListener | Implementations of this interface are notified of changes to the list of
 active sessions in a web application. | 
| Part | This class represents a part as uploaded to the server as part of a
  multipart/form-datarequest body. | 
| Class | Description | 
|---|---|
| Cookie | Creates a cookie, a small amount of information sent by a servlet to a Web
 browser, saved by the browser, and later sent back to the server. | 
| HttpServlet | Provides an abstract class to be subclassed to create
 an HTTP servlet suitable for a Web site. | 
| HttpServletRequestWrapper | Provides a convenient implementation of the HttpServletRequest interface that
 can be subclassed by developers wishing to adapt the request to a Servlet. | 
| HttpServletResponseWrapper | Provides a convenient implementation of the HttpServletResponse interface
 that can be subclassed by developers wishing to adapt the response from a
 Servlet. | 
| HttpSessionBindingEvent | Events of this type are either sent to an object that implements
  HttpSessionBindingListenerwhen it is bound or unbound from a
 session, or to aHttpSessionAttributeListenerthat has been
 configured in the deployment descriptor when any attribute is bound, unbound
 or replaced in a session. | 
| HttpSessionEvent | This is the class representing event notifications for changes to sessions
 within a web application. | 
| HttpUtils | Deprecated As of Java(tm) Servlet API 2.3. | 
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