What is doGet and doPost method?

What is doGet and doPost method?

The doGet() method is used for getting the information from server while the doPost() method is used for sending information to the server.

How do you use a doGet?

You should use doGet() when you want to intercept on HTTP GET requests. You should use doPost() when you want to intercept on HTTP POST requests. That’s all. Do not port the one to the other or vice versa (such as in Netbeans’ unfortunate auto-generated processRequest() method).

How do you call a doGet?

Call servlets doGet() method with RequestDispatcher getRequestDispatcher(“/CartServlet”); rd. forward(request, response); This code calls doPost() as the default action.

What is doPost method in servlet?

doPost(HttpServletRequest req, HttpServletResponse resp) Called by the server (via the service method) to allow a servlet to handle a POST request. protected void. doPut(HttpServletRequest req, HttpServletResponse resp) Called by the server (via the service method) to allow a servlet to handle a PUT request.

What is 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.

How is CGI better than servlet?

Servlet is more secure than CGI as it uses Java. The speed, performance and efficiency of the servlet is better than CGI. CGI scripts can be directly processed. On the contrary, the servlet first translates and compile the program then process it.

Can we call doGet from doPost?

You can move the doPost code to doGet and call doGet method from doPost ,thr will be no issue.

How can we call doGet method from Servlet from JSP?

Complete the following steps in your code to use this mechanism:

1. Get a servlet context instance from the servlet instance:
2. Get a request dispatcher from the servlet context instance, specifying the page-relative or application-relative path of the target JSP page as input to the getRequestDispatcher() method:

What is the use of Doget in httpservletrequest?

The doGet( ) method is overridden to process any HTTP GET requests that are sent to this servlet. It uses the getParameter( ) method of HttpServletRequest to obtain the selection that was made by the user.

What is a httpservletrequest object?

The servlet container creates an HttpServletRequest object and passes it as an argument to the servlet’s service methods (doGet, doPost, etc).

What is ext extends servletrequest?

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 protected void doDelete in httpservletrequest?

protected void doDelete(HttpServletRequest req, HttpServletResponse resp) throws ServletException, java.io.IOException Called by the server (via the servicemethod) to allow a servlet to handle a DELETE request.