| Interface | Description | 
|---|---|
| HttpServletRequest | HttpServletRequest encapsulates client request data. | 
| HttpServletResponse | HttpServletResponse extends ServletResponse allowing servlets to
 set the status and headers. | 
| HttpSession | Sessions are a convenient way to connect users to web pages. | 
| HttpSessionActivationListener | Interface for a listener receiving events when a session is
 created or displayed. | 
| HttpSessionAttributeListener | Interface for a listener receiving events when a session is
 created or displayed. | 
| HttpSessionBindingListener | This listener lets session values know when they've been added to
 or removed from a session. | 
| HttpSessionContext | Deprecated | 
| HttpSessionListener | This listener lets session values know when a session is created or
 destroyed. | 
| Part | 
| Class | Description | 
|---|---|
| Cookie | Encapsulates HTTP cookies. | 
| HttpServlet | HttpServlet is a convenient abstract class for creating servlets. | 
| HttpServletRequestWrapper | Wraps a servlet request in another request. | 
| HttpServletResponseWrapper | Wraps a servlet request in another request. | 
| HttpSessionBindingEvent | The event object for adding or removing a session object. | 
| HttpSessionEvent | The event object for session changes. | 
| HttpUtils | Deprecated |