将List从Servlet传递给JSP [英] Passing a List from Servlet to JSP

问题描述

当我尝试将Servlet中列表的值设置为会话变量并像JSP一样访问它时，

When I try to set the value of a list in Servlet to a session variable and access it JSP like,

doGet

HttpSession session = request.getSession(true);
session.setAttribute("MySessionVariable", authorizeUserList);

JSP

<%List lst = session.getAttribute("MySessionVariable");%>

我在JSP中收到错误，因为List无法解析为类型

I get an error in JSP as "List cannot be resolved to a type"

那我该怎么做呢？我想将一个列表从Servlet传递给JSP并填充一个Drop down。

So how should I do this? I want to pass a list from Servlet to JSP and populate a Drop down.

推荐答案

您是否导入列表并进行投射？

Are you importing list and casting?

<%@page import="java.util.List"%>
<% List lst = (List) session.getAttribute("MySessionVariable"); %>

这篇关于将List从Servlet传递给JSP的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！