how to work with cross domain cookie or session in java

Question

I am using pdk jdeveloper portlet.

I have deployed ear on tomcat server with host www.test1.com:8080/

now i m using it's provider on oracle server with same host but different port like www.test1.com:9090/

so here i m not able to use cookie or session thing on www.test1.com:9090/

I have set cookie using javascript as below:

function setCookie(c_name,value,exdays)
{
    var exdate=new Date();
    exdate.setDate(exdate.getDate() + exdays);
    var c_value=escape(value) + ((exdays==null) ? "" : "; expires="+exdate.toUTCString());
    document.cookie=c_name + "=" + c_value;
}

setCookie("USER","test",365);

now tried to get this cookie on portlet page as below.

 PortletRenderRequest pReq = (PortletRenderRequest)
    request.getAttribute(HttpCommonConstants.PORTLET_RENDER_REQUEST);
    try 1: Cookie[] cookies =request.getCookies(); // get null
    try 2: Cookie[] cookies = (Cookie[])pReq.getCookies(); // get null

how can i achieve this ? please help.

Answer 1

You have to set a domain on cookie. link, This gives you a good start. I read this article and found that its easy to share cookie across sub domain but complicated to share it across different domain. This would also be useful link