Working with cookies in Struts 2

It appears that struts only supports reading cookies, you have to go to the servlet response to actually set a cookie.
So it is better to go directly to the servlet request/response objects for both reading and writing:

For this your action class should implement
two interfaces namely:

ServletResponseAware and  ServletRequestAware like this:

public class MyActionClass extends ActionSupport implements ServletResponseAware, ServletRequestAware {  
  }  

And following line of code should be included in action class.

 protected HttpServletResponse servletResponse;   
  @Override   
  public void setServletResponse(HttpServletResponse servletResponse) {   
   this.servletResponse = servletResponse;   
  }   
  protected HttpServletRequest servletRequest;   
  @Override   
  public void setServletRequest(HttpServletRequest servletRequest) {   
   this.servletRequest = servletRequest;   
  }  

Now you can set cookie something like this:

public String execute(){  
 // Save to cookie  
 Cookie cookie = new Cookie("cookieUser", userId);  
 cookie.setMaxAge(60*60*24*365); // Make the cookie last a year  
 servletResponse.addCookie(cookie);  
 return "success";  
 }  

And get the cookie value something like this:

public Cookie getCookieValue(String cookieName){  
 Cookie cookies [] = servletRequest.getCookies ();  
 Cookie myCookie = null;  
 if (cookies != null)  
 {  
 for (int i = 0; i < cookies.length; i++)  
 {  
 if (cookies [i].getName().equals (cookieName))  
 {  
 myCookie = cookies[i];  
 break;  
 }  
 }  
 }  
 return myCookie;  
 }