Page Visit Count in Salesforce

Controller:

public class CookieController {

    public CookieController() {

        Cookie counter = ApexPages.currentPage().getCookies().get('counter');

    

        // If this is the first time the user is accessing the page, 

        // create a new cookie with name 'counter', an initial value of '1', 

        // path 'null', maxAge '-1', and isSecure 'false'. 

        if (counter == null) {

            counter = new Cookie('counter','1',null,-1,false);

        } else {

        // If this isn't the first time the user is accessing the page

        // create a new cookie, incrementing the value of the original count by 1

            Integer count = Integer.valueOf(counter.getValue());

            counter = new Cookie('counter', String.valueOf(count+1),null,-1,false);

        }

    

        // Set the new cookie for the page

        ApexPages.currentPage().setCookies(new Cookie[]{counter});

    }

    // This method is used by the Visualforce action {!count} to display the current 

    // value of the number of times a user had displayed a page. 

    // This value is stored in the cookie.

    public String getCount() {

        Cookie counter = ApexPages.currentPage().getCookies().get('counter');

        if(counter == null) {

            return '0';

        }

        return counter.getValue();

    }

}

Visualforce Page:

<apex:page controller="CookieController">

    You have seen this page {!count} times

</apex:page>