Package 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.
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. |
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. |
ServletContextAttributeListener | Implementations of this interface receive notifications of
changes to the attribute list on the servlet context of a web application. |
ServletContextListener | Implementations of this interface receive notifications about
changes to the servlet context of the web application they are
part of. |
ServletRequest | Defines an object to provide client request information to a servlet. |
ServletRequestAttributeListener | A ServletRequestAttributeListener can be implemented by the
developer interested in being notified of request attribute
changes. |
ServletRequestListener | A ServletRequestListener can be implemented by the developer
interested in being notified of requests coming in and out of
scope in a web component. |
ServletResponse | Defines an object to assist a servlet in sending a response to the client. |
SingleThreadModel | Ensures that servlets handle
only one request at a time. |
GenericServlet |
Defines a generic, protocol-independent
servlet. |
ServletContextAttributeEvent | This is the event class for notifications about changes to the attributes of the
servlet context 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. |
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. |
ServletRequestWrapper |
Provides a convenient implementation of the ServletRequest interface that
can be subclassed by developers wishing to adapt the request to a Servlet. |
ServletResponseWrapper |
Provides a convenient implementation of the ServletResponse interface that
can be subclassed by developers wishing to adapt the response from a Servlet. |
UnavailableException | Defines an exception that a servlet or filter throws to indicate
that it is permanently or temporarily unavailable. |
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.
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