用jsp的脚本段
<%
List listMainBoard = (List)mapBoard.get(new Integer(0));
for(int i=0; i<listMainBoard.size(); i++){
Board mainBoard = (Board)listMainBoard.get(i);
}
mapBoard为map对象
来源
req.setAttribute("mapBoard" , map);
%>
补充:
<%
List listMainBoard = (List)mapBoard.get(new Integer(0));
for(int i=0; i<listMainBoard.size(); i++){
Board mainBoard = (Board)listMainBoard.get(i);
%>
用jstl el 表示
用迭代标签例子
<c:forEach items="${map对象}" var="临时变量名">
<c:out value="${临时变量.key}" />
<c:out value="${临时变量.value}" />
</c:forEach>