jsp通过logic:iterate或html:optionsCollection循环显示action中传过来的对象List

action中代码如下：
<!--

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-->        List allUser=this.getLoginServiceImpl().find();
        request.setAttribute("user", allUser);
        return mapping.findForward("listUser");注：其中User对象有id和name属性

jsp显示：法一
<!--

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-->            <html:select property="school">
            <html:option value="">
                <bean:message key="login.select" />
            </html:option>
                <logic:present name="user">
                    <logic:iterate id="user" name="user" offset="0">
                        <option value="<bean:write name="user" property="id" />">
                            <bean:write name="user" property="name" />
                        </option>
                    </logic:iterate>
                </logic:present>
        </html:select>jsp显示：法二
<!--

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-->       <html:select property="school">
            <html:optionsCollection name="user" value="id" label="name"/>
       </html:select>
optionsCollection标签用法：
与options标签一样，optionsCollection标签可以从集合或者是包含集合的对象里获得选项的标签/值对。在这两种情况里，集合或包含集合的对象必须是一个作用域对象，否则定制标签将无法访问它。

1.与包含集合的对象配合使用
举例：userForm动作表单有一个如下所示的ArrayList类型的userList属性，相应的set，get方法，通过在action中设置好userForm后，request.setAttribute("userForm",userForm)；
在jsp页面：
<!--

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--><html:select property="school">
<html:optionsCollection name="userForm"
      property="userList"/>
</html:select>
2.与集合配合使用
action中
<!--

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-->ArrayList userList=new ArrayList();
userList.add(new LabelValueBean("1","haha"));
userList.add(new LabelValueBean("2","dada"));
userList.add(new LabelValueBean("3","xiaoxiao"));
request.setAttribute("userList",userList);jsp页面
<!--

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--><html:select property="school">
<html:optionsCollection name="userList"
      label="label" value="value"/>
</html:select>