Which of the following methods is provided by the HttpServletRequest interface?
javax.servlet.http Interface HttpServletRequest
| Method Summary | |
|---|---|
| java.lang.String | getAuthType() Returns the name of the authentication scheme used to protect the servlet. |
| java.lang.String | getMethod() Returns the name of the HTTP method with which this request was made, for example, GET, POST, or PUT. |
How is HttpServletRequest created?
In a typical Servlet container implementation if an HTTP request comes in, an HttpServletRequest is created right when the HTTP input data of the request is parsed by the Servlet container.
What is a servlet What is the main job of HttpServletRequest and HttpServletResponse?
The HttpServletRequest object provides the access to the request information and the HttpServletResponse object allows us to format and change the http response before sending it to the client. The servlet container spawns a new thread that calls service() method for each client request.
How do I get HttpServletRequest in spring?
HttpServletRequest request = ((ServletRequestAttributes)RequestContextHolder. getRequestAttributes()) . getRequest(); Solution 2: inside bean (supported by >= 2.5, Spring 3.0 for singelton beans required!)
Can we Autowire HttpServletRequest?
Use @autowire Injecting HttpServletRequest is thread-safe.
Which method of the HttpServletRequest object is used if there is a chance of retrieving?
getSession() method
A servlet uses the getSession() method of an HttpServletRequest object to retrieve or create an HttpSession object for the user.
What is getParameter in Servlet?
getParameter. java.lang.String getParameter(java.lang.String name) Returns the value of a request parameter as a String , or null if the parameter does not exist. Request parameters are extra information sent with the request. For HTTP servlets, parameters are contained in the query string or posted form data.
What is httpservletrequest in servlet?
public interface HttpServletRequest extends ServletRequest 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).
What is httpsessionidlistener in Java Servlet?
Java Servlet 3.1 introduced following method of HttpServletRequest: This method changes the current session id with a new one, hence providing the protection against session fixation attack. Servlet 3.1 also introduced HttpSessionIdListener for receiving HttpSession id change notification.
What is httpservletrequestwrapper public interface?
HttpServletRequestWrapper public interface HttpServletRequest extends ServletRequest 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).
What is isrequestedsessionidfromurl() in Java Servlet?
As of Version 2.1 of the Java Servlet API, use isRequestedSessionIdFromURL () instead. Checks whether the requested session ID came in as part of the request URL. Checks whether the requested session ID is still valid. Returns a boolean indicating whether the authenticated user is included in the specified logical “role”.