How to have ItemId in the URL in JSF based application

Question

I have a JSF based application and I am using faces-config.xml to navigate and I am using /redirect to navigate form case to case.
The application lists products and upon selecting one, a product detail is displayed. I would like to have productId as part of the page URL so that URL can be emailed and the receiver can paste the received URL into browser and retrieve the product detail.
Currently the URL is not rewritten to have session id in it.
I am not ever sure where to start on this.

Answer 1

Is this line correct?
<value>#{param.productId}</value>
Try it out yourself ;)
This is clear and helpful. However I don't know how
to create this URL
(http://example.com/shop/products.jsf?productId=100)
in the first place. The URL I have is in the form of
http://example.com/shop/products.faces.
Is adding '?productId=100' to the URL something
configurable or it has to be done programmatically
via URL rewriting?You can implement it in several ways:
JSF<h:outputLink value="products.faces">
    <h:outputText value="click here" />
    <f:param name="productId" value="100" />
</h:outputLink>
<%-- or --%>
<h:outputLink value="products.faces?productId=100">
    <h:outputText value="click here" />
</h:outputLink>Or write a servlet listening on /shop/, scan the current request URI for product.faces, get the productId from the backing bean's session and rewrite the URL using request.getRequestDispatcher("product.faces?productId=" + productId).forward(request, response).
Maybe there are more clever solutions using configfiles, but I don't have much experience (yet) with such GET request thingies in conjunction with JSF.