struts中ActionForward 使用mapping.findForward如何传递get参数

<!-- 配置 -->
<forward name="a" path="a.do" />

<!-- Action中的代码 -->

ActionForwardforward=mapping.findForward("a");
ActionForwardnewForward= newActionForward(forward);
StringnewPath=forward.getPath()+"&id=1"
newForward.setPath(newPath);
returnnewForward;

<!-- Action中的代码(第二种) -->

return new ActionForward ( " a.do?id=1 " );