Purpose: Hands-on experience with Ajax

For this exercise, you will incorporate Ajax into welcome.js so that the info servlet displays the user's data entry. You may work with a partner or alone.
Use welcomeMessage for a backend handler (i.e., response component on the server).

Here are source files for the servets: info.java and welcomeMessage.java

Please feel free to refer to Basic Ajax. You might also find Sebesta book useful.

You should consider:

• Request phase
  • How do you create an XMLHttpRequest object?
  • How do you configure XMLHttpRequest object?
  • How do you make an asynchronous request?
  • How do you send the request to the server?
• Receiver phase
  • How do you process the response from the server?
  • How do you update the HTML DOM?

For this in-class exercise, you are not required to deploy it on the server (since we have not talked about servlets and how to deploy them yet). Please directly post your files on Piazza. Put your name and "SWE 432 - In-class exercise 7" on the screen. If you work with a partner, put both names on the screen.

Optional: If you decide to deploy this in-class exercise on the server, please follow the servlet deployment instruction.