Passing Parameters with GET request
Explore how to pass parameters in GET requests by appending them to URLs, retrieve them in a servlet using getParameter(), and forward these values as attributes to JSP for dynamic display. Understand the use of expression language in JSP and the security risks involved with passing sensitive data via GET.
A parameter is something that is passed between the browser and the web server.
Passing a parameter in the URL
Suppose we want to pass the name of a tennis player as a parameter. The way to pass a parameter is to put a question mark at the end of the URL and provide the name of the parameter. The ? separates the URL from the parameter:
http://localhost:8080?name=sampras
Here, we are passing a parameter called name. The value of the parameter is sampras.
To pass multiple parameters, the & symbol is used as follows: