Servlets that Receive Form Data

• A Servlet Processing User Input.
  • Line 11: Using the HttpServletRequest object to access a client parameter (discussed below).
  • Line 20: Echoing the parameter in the message back to the client.
• A Web Page Accepting User Input (use your browser's View option to view the page source).
  • The form tag names the Servlet that is to process the parameter.
  • Two input tags allow the user to enter text and submit it via a button.
  • The entered text is sent in a parameter called username.