What is an HttpServletRequest?
HttpServletRequest is an interface and extends the ServletRequest interface. By extending the ServletRequest this interface is able to allow request information for HTTP Servlets. Object of the HttpServletRequest is created by the Servlet container and, then, it is passed to the service method (doGet(), doPost(), etc.)
What request getContentType method does?
getContentType. Returns the MIME type of the body of the request, or null if the type is not known. For HTTP servlets, same as the value of the CGI variable CONTENT_TYPE.
What is the purpose of HttpServletRequest?
Interface HttpServletRequest. Extends the ServletRequest interface to provide request information for HTTP servlets. The servlet container creates an HttpServletRequest object and passes it as an argument to the servlet’s service methods ( doGet , doPost , etc). String identifier for Basic authentication.
Which method used to return the last time the client sent request associated with session?
Some Important Methods of Servlet HttpSession
|returns the last time the client sent a request associated with the session
|returns the maximum time interval, in seconds.
|destroy the session
Why Servlets are not thread-safe?
By default, servlets are not thread-safe. The methods in a single servlet instance are usually executed numerous times simultaneously up to the available memory limit. Each execution occurs in a different thread, though only one servlet copy exists in the servlet engine.
How does the httpservletrequest interface work in a servlet?
Extends the ServletRequest interface to provide request information for HTTP servlets. The servlet container creates an HttpServletRequest object and passes it as an argument to the servlet’s service methods (doGet, doPost, etc).
How is the getsession method used in httpservletrequest?
Here is how it is done: HttpServletRequest interface provides a getSession () method, which returns the current session associated with this request, or if the request does not have a session, creates one. The session object can hold information about a given user, between requests.
What should be included in a servletrequest object?
A ServletRequest object provides data including parameter name and values, attributes, and an input stream. Interfaces that extend ServletRequest can provide additional protocol-specific data (for example, HTTP data is provided by HttpServletRequest.
How to get a reference to a servlet?
The producer obtains a reference to the HttpSessionby calling the getSession()on the HttpServletRequest. The reference to the HttpServletRequestis obtained by observing the @Initialized HttpServletRequestevent raised by this module’s Servlet-to-CDI event bridge.