Struts2 redirecting to another action with unknown amount of parameters

Question

I have a login action which after succesful execution redirects to the previous page (I store the previous page in my session so I can fetch it later). In Struts2, I can fin

Answer 1

You can save action name, namespace, and parameters from the ActionMapping.

ActionMapping mapping = ServletActionContext.getActionMapping();

You can also save query string instead of parameter map.

String params = request.getQueryString();

To add parameters dynamically to redirectAction result you should use OGNL in a dynamic parameter.

<param name="actionName">${previousAction.name +'?'+ parameters}</param>

Supposed you have a getter for parameters and initialized it from session where you saved previous query string, action name, and namespace.