[S2] Session scoped action errors/messages

[Laurie Harper <la...@holoweb.net>]

Struts1 allows action errors and messages to be saved into the session 
for display after a redirect, and supports automatically clearing the 
messages once they've been displayed. Does Struts2 have any support for 
achieving the same thing?

ValidationAware doesn't specify any scope-aware methods (nor would it 
seem appropriate for it to do do). Is there some other interface I can 
implement, or interceptor I can configure, to allow messages to cross a 
redirect-boundary?

For example, consider the following action:

@Result(value="success.jsp", type=ServletActionRedirect.class)
public class MyAction extends ActionSupport {
   public String execute() {
     addActionMessage("operation succeeded");
     return SUCCESS;
   }
}

If nothing like this exists already, I'll implement an interceptor but I 
don't want to be re-inventing any wheels ;=)

L.


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