struts中标签的使用问题

[bai666666]

我将4个Map对象存放到一个List中,然后再将List对象以dataList的名称存放到request中,最后想通过标签的方式把Map对象中的数据取出来,我用如下方法:

<logic:present name="dataList" scope="request">
<logic:iterate id="map" name="dataList" scope="request">
${map.key} ${map.value}
</logic:iterate>
</logic:present>
但是最后却输出空值,请大家帮忙看一下,用标签应该怎么解决?.

[awusoft]

一个map对像里边还有很多的记录啦,所以里边还有一层循环啊

去查一下Struts如何循环一个Map

<logic:present name="dataList" scope="request">
<logic:iterate id="map" name="dataList" scope="request">
<logic:iterate id="obj" name="map" scope="request">
${obj.key} ${obj.value}
</logic:iterate>

</logic:iterate>
</logic:present>

[awusoft]

<%

Map m = new HashMap();
m.put("a","1");
m.put("b","2");
Map m1 = new HashMap();
m1.put("a","1");
m1.put("b","2");
List list = new ArrayList();
list.add(m);
list.add(m1);
request.setAttribute("ff",list);

%>
<logic:present name="ff" scope="request">
<logic:iterate id="map" name="ff" >
<logic:iterate id="obj" name="map" >
<bean:write name="obj" property="key"/>
<bean:write name="obj" property="value"/>
</logic:iterate>

</logic:iterate>
</logic:present>

[zhouhuaweiaa]

<logic:present name="dataList" scope="request">
<logic:iterate id="dd" name="dataList">
<logic:iterate id="nn" name="dd">
${nn.key} ${nn.value}
</logic:iterate>
</logic:iterate>
</logic:present>