Web application description:- Take an HTML form to gather the input from the end-user. We had already developed this web application while discussing the doGet and doPost methods in Servlet. Simple Basic Servlet Program with HTML Form
Some examples are:- registration form, file uploading activities, and e.t.c.
Use Code KNOWPROGRAM10 to get FLAT 10% OFF on all Courses String variable = req.getParameter("") Įxample:- // get request parameter values (form data)Īll the input values came in String format.
How to Get Data in Servlet From HTML Form The data from the form component came in String format. So, we can read that form data in our server component by using the request object (like req.getParameter(-) method). The form data sent by form submission will be stored in to request object, having form component name as key and value/data as the value (i.e. We need to place Servlet request URL in “ action” attribute of tag (as action URL) to make form submitted request going servlet component. Example:- Registration form, login page, payment page and e.t.c.
Request generated through hyperlink can not carry end-users supplied data along with the request, but form page submitted request can carry end users supplied data along with the request. We will develop a servlet program to retrieve data from the list and radio button using HTML forms. We will also see the Simple Servlet Program with HTML Form. There are some limitations with HTML to Servlet communication through the hyperlink. tStatus(response.In this tutorial, we will discuss HTML to Servlet communication using the Form component. You can also use setStatus() and setHeader() methods together to achieve the same −
This method sends back the response to the browser along with the status code and new page location. Following is the signature of this method − The simplest way of redirecting a request to another page is using method sendRedirect() of response object. Page redirection is generally used when a document moves to a new location or may be because of load balancing. Page redirection is a technique where the client is sent to a new location other than requested.