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(Quick Reference)

session

Purpose

The session object is an instance of the Servlet API’s HttpSession class

Examples

class UserController {

    def logout() {
        log.info "User agent: " + request.getHeader("User-Agent")
        session.invalidate()
        redirect(action: "login")
    }

    def login() {}
}

Description

The HttpSession class is useful for associated session data with a client.

Session attributes which are normally accessible from the getAttribute can also be indexed into using the array index operator or de-reference operator:

def user = session["user"]

session["user"] = "John"

assert "John" == session.user