Uses of Package
javax.servlet

Packages that use javax.servlet

javax.servlet	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.
javax.servlet.http	The javax.servlet.http package contains a number of classes and interfaces that describe and define the contracts between a servlet class running under the HTTP protocol and the runtime environment provided for an instance of such a class by a conforming servlet container.

Classes in javax.servlet used by javax.servlet

AsyncContext
Class representing the execution context for an asynchronous operation that was initiated on a ServletRequest.

AsyncEvent
Event that gets fired when the asynchronous operation initiated on a ServletRequest (via a call to ServletRequest.startAsync() or ServletRequest.startAsync(ServletRequest, ServletResponse)) has completed, timed out, or produced an error.

AsyncListener
Listener that will be notified in the event that an asynchronous operation initiated on a ServletRequest to which the listener had been added has completed, timed out, or resulted in an error.

DispatcherType
Enumeration of filter dispatcher types.

Filter
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.

FilterChain
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.

FilterConfig
A filter configuration object used by a servlet container to pass information to a filter during initialization.

FilterRegistration
Interface through which a Filter may be further configured.

FilterRegistration.Dynamic
Interface through which a Filter registered via one of the addFilter methods on ServletContext may be further configured.

HttpConstraintElement
Java Class representation of an HttpConstraint annotation value.

HttpMethodConstraintElement
Java Class represntation of an HttpMethodConstraint annotation value.

MultipartConfigElement
Java Class represntation of an MultipartConfig annotation value.

Registration
Interface through which a Servlet or Filter may be further configured.

Registration.Dynamic
Interface through which a Servlet or Filter registered via one of the addServlet or addFilter methods, respectively, on ServletContext may be further configured.

RequestDispatcher
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.

Servlet
Defines methods that all servlets must implement.

ServletConfig
A servlet configuration object used by a servlet container to pass information to a servlet during initialization.

ServletContext
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.

ServletContextAttributeEvent
Event class for notifications about changes to the attributes of the ServletContext of a web application.

ServletContextEvent
This is the event class for notifications about changes to the servlet context of a web application.

ServletException
Defines a general exception a servlet can throw when it encounters difficulty.

ServletInputStream
Provides an input stream for reading binary data from a client request, including an efficient readLine method for reading data one line at a time.

ServletOutputStream
Provides an output stream for sending binary data to the client.

ServletRegistration
Interface through which a Servlet may be further configured.

ServletRegistration.Dynamic
Interface through which a Servlet registered via one of the addServlet methods on ServletContext may be further configured.

ServletRequest
Defines an object to provide client request information to a servlet.

ServletRequestAttributeEvent
This is the event class for notifications of changes to the attributes of the servlet request in an application.

ServletRequestEvent
Events of this kind indicate lifecycle events for a ServletRequest.

ServletResponse
Defines an object to assist a servlet in sending a response to the client.

ServletSecurityElement
Java Class represntation of a ServletSecurity annotation value.

SessionCookieConfig
Class that may be used to configure various properties of cookies used for session tracking purposes.

SessionTrackingMode
Enumeration of session tracking modes.

Classes in javax.servlet used by javax.servlet.http

GenericServlet
Defines a generic, protocol-independent servlet.

Servlet
Defines methods that all servlets must implement.

ServletConfig
A servlet configuration object used by a servlet container to pass information to a servlet during initialization.

ServletContext
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.

ServletException
Defines a general exception a servlet can throw when it encounters difficulty.

ServletInputStream
Provides an input stream for reading binary data from a client request, including an efficient readLine method for reading data one line at a time.

ServletRequest
Defines an object to provide client request information to a servlet.

ServletRequestWrapper
Provides a convenient implementation of the ServletRequest interface that can be subclassed by developers wishing to adapt the request to a Servlet.

ServletResponse
Defines an object to assist a servlet in sending a response to the client.

ServletResponseWrapper
Provides a convenient implementation of the ServletResponse interface that can be subclassed by developers wishing to adapt the response from a Servlet.