hi, in my servlet I take the parameters from the request page with get method. But I want to know that this parameter that comes from the request page, not from the manualy writing the url and pass the parameter and value? How to kontrol this problem in Servlet Get method? I want to be sure that customer fill the forms and submit the form, not manually write the url and passes the parameter and value? I am not sure but I remember that php has a control for this reason.