How to secretly pass parameters to a servlet using the get method?

Question

Java

It is necessary to send requests to the servlet using the GET method. The problem is that in this way the user will be able to see which parameter will be assigned what value and can simply pick up the parameter values, thereby causing an error. Question: how to pass parameters to a servlet invisibly?

Answer 1

can't be hidden in any way.
you must be prepared that the data from the client comes incorrect, in the wrong order, with brute force and so on and so forth.
all defense on the server.

Answer 2

Well, if you process cases when a user can select parameters and forbid him to do this, is that not an option?

Answer 3

Encrypt data, and transfer encrypted with one parameter. Though get, even post.