Exercise 51. Getting Input from a Browser
While it’s exciting to see the browser display “Hello World,” it’s even more exciting to let the user submit text to your application from a form. In this exercise we’ll improve our starter web application by using forms and storing information about users into their “sessions.”
How the Web Works
Time for some boring stuff. You need to understand a bit more about how the web works before you can make a form. This description isn’t complete, but it’s accurate and will help you figure out what might be going wrong with your application. Also, creating forms will be easier if you know what they do.
I’ll start with a simple diagram that shows you the different parts of a web request and how the information ...