Servlet转发到JSP,JSP取出值输出不显示问题

最新推荐文章于 2024-03-23 23:20:37 发布

Vvan_z

最新推荐文章于 2024-03-23 23:20:37 发布

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本文链接：https://blog.youkuaiyun.com/weixin_42009069/article/details/80773677

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Servlet代码

//DAO取数据

List<Dishes> list = sDao.findAllDishes();

//将其放到request的域中

request.setAttribute("dishesList", list);

JSP代码

<%
request.setCharacterEncoding("utf-8");
List<Dishes> list = (List<Dishes>) request.getAttribute("dishesList");

//这里的list控制台打印有值

//但是JTSL输出不了

<div>
<c:forEach var="Dishes" items="${pageScope.list}">
<div>${Dishes.dishesName}</div>
</c:forEach>

</div>

DBUG

//包导了//没写错

so google

//在jsp的<%%>中将LIST存入Page域

//取出成了

items="${cg}" 你把cg放到某个scope下。再在scope中读出来。比如：pageContext.setAttribute("liset",liset);

ody>
<%
request.setCharacterEncoding("utf-8");
List<Dishes> list = (List<Dishes>) request.getAttribute("dishesList");
pageContext.setAttribute("list",list);
%>
<div>
<c:forEach var="Dishes" items="${pageScope.list}">
<div>${Dishes.dishesName}</div>
</c:forEach>
</div>