The HttpServletRequest class is part of the javax.servlet.http package library in Java. This class represents an HTTP request that is sent from a client to a server.
Example 1: Retrieving Request Parameters In this example, we retrieve the value of a parameter named "name" from the request object.
HttpServletRequest request = ...; // get the request object String name = request.getParameter("name"); // retrieve the value of the "name" parameter
Example 2: Retrieving Request Headers In this example, we retrieve the value of the "User-Agent" request header from the request object.
HttpServletRequest request = ...; // get the request object String userAgent = request.getHeader("User-Agent"); // retrieve the value of the "User-Agent" header
Example 3: Forwarding a Request In this example, we forward a request to a different resource (e.g. servlet, JSP) using the forward() method.
HttpServletRequest request = ...; // get the request object RequestDispatcher dispatcher = request.getRequestDispatcher("/my-resource"); // get the dispatcher object for the desired resource dispatcher.forward(request, response); // forward the request to the desired resource
Example 4: Adding Request Attributes In this example, we add an object as an attribute to the request object.
HttpServletRequest request = ...; // get the request object MyObject myObject = ...; // create an instance of MyObject request.setAttribute("myObject", myObject); // add myObject as an attribute to the request object
Overall, the HttpServletRequest class provides a variety of methods and functionality to access and manipulate information about an HTTP request in Java.
Java HttpServletRequest - 30 examples found. These are the top rated real world Java examples of HttpServletRequest extracted from open source projects. You can rate examples to help us improve the quality of examples.