在Action里去值栈中存放对象的方法

ActionContext.getContext().put("departmentList",departmentList);

是直接往 map栈中存放元素

Stack Context

Key??????????????? Value
departmentList????? [cn.xiaoxian.domain.Department@8098]

<s:iterator value="departmentList"> 注意没用#

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ServletActionContext.getRequest().setAttribute("departmentList",departmentList);

放到request域中

所以要这样访问 <s:iterator value="#request.departmentList">

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ActionContext.getContext().getValueStack.push(departmentList);

<s:iterator> 因为没有对象名 可对象在栈顶 所以直接用<s:iterator>迭代栈顶的元素

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ActionContext.getContext().getValueStack.set("departmentList",departmentList);

做了一个HashMap "departmentList"做为key ,departmentList作为value

放到 对象栈中去了

?