将错误消息从操作方法传递到jsp

Question

This is my action method containing the business logic. I want to show error message from this action method in the jsp. The control goes to the jsp but the error message does not show up.In my jsp i have this code to display error message:

<html:errors/>

I am new to struts. Also in eclipse it says that saveErrors method is deprecated. i know how to display errors using validate method of the bean class which extends ActionForm .

 public ActionForward upload(....)
    {
     if(noOfColumns>7)
                  {
                      errors.add(ActionErrors.GLOBAL_ERROR, new ActionMessage("error.file.maxCols")); 
                     saveErrors(request,errors);

                     return mapping.findForward("uploadVIPProcess");
                  }
    }

Answer 1

The docs explicitly state what to do:

Deprecated . Use saveErrors(HttpServletRequest, ActionMessages) instead.

This will be removed after Struts 1.2.

Answer 2

finally found it. This was very simple:

public ActionForward upload(....)
    {
              errors.add(ActionErrors.GLOBAL_ERROR, new ActionMessage("error.file.maxCols")); 
              saveErrors(request,errors);
              return (new ActionForward(mapping.getInput()));
    }

so the only difference is instead of:

return mapping.findForward("uploadVIPProcess");

I changed it to:

return (new ActionForward(mapping.getInput()));

and it's working just fine:)