请问怎么用Struts2标签迭代HashMap<Object, List<Object>>

Question

struts2迭代hashmap

Answer 1

可以用c:foreach标签啊
<c:forEach var = "entry" items = "${map}">
            <c:forEach var = "e" items = "${entry.value}">
                     ${e}
             </c:forEach>
</c:forEach>大概是这样前一个foreach迭代map
后一个foreach迭代list
其中e是list中的每个对象
取属性的话 ${e.XX}    XX是属性名

Answer 2

1楼的行jsp标签，用<s:iterator>,写法和1楼类似，具体，参考struts文档里面很详细

Answer 3

已经解决了 话不多说 直接代码Action
// <!-- 邮件 OR 短信发送管理 -->
public String getSendManagerList(){
HashMap<TSendMessage, List<TSendId>> map=null;//TSendMessage和TSendId是对象
List<TSendMessage> sendmanager=tSendMessageBiz.findAll();
for (int i = 0; i < sendmanager.size(); i++) {
map=new HashMap<TSendMessage,List<TSendId>>();
int sid=sendmanager.get(i).getId();
List<TSendId> l=tSendIdBiz.findByProperty(sid);
map.put(sendmanager.get(i), l);
}
url="/WEB-INF/sendmanager/sendmanager.jsp";
request.setAttribute("map",map);
return Action.SUCCESS;
}
更多 0 分享到： 页面
<s:iterator value="#l.value" id="list" status="st">
<tr>

<td height="27" class="b2a"
rowspan="<s:property value="#l.value.size()" />">
<input type="checkbox" name="messageId"
value="<s:property value="#l.key.id" />" />
&nbsp;
</td>
<td height="27" class="b2a"
rowspan="<s:property value="#l.value.size()" />">
<s:property value="#l.key.id" />
&nbsp;
</td>
<td height="27" class="b2a"
rowspan="<s:property value="#l.value.size()" />">
<s:if test="#l.key.sendType==0">手机发送</s:if>
<s:else>邮件发送</s:else>
&nbsp;
</td>
<td height="27" width="300" class="b2a"
rowspan="<s:property value="#l.value.size()" />">
<s:property value="#l.key.sendContent" />
&nbsp;
</td>
<td height="27" class="b2a">
<s:property value="#list.sendPeople" />
&nbsp;
</td>
<td height="27" width="150" class="b2a"
style="table-layout: fixed; word-wrap: break-word;">
<s:date name="#list.createDate" format="yyyy-MM-dd"/>
&nbsp;
</td>
<td height="27" class="b2a">
<s:property value="#list.idSection" />
&nbsp;
</td>
<td height="27" class="b2a">
<a href="send/delTSendIdById/<s:property value='#list.id'/>/">删除</a>
</td>
</tr>
</s:iterator>

Answer 4

http://blog.csdn.net/nevergiveuplzl/article/details/27325933