java - 注销 servlet 不起作用：注销后，名字和注销按钮仍然可见

问题描述

我有一个似乎不起作用的注销 servlet。在我转到/logout页面后，它确实重定向回/home，但是用户的名字和姓氏以及“注销”按钮仍然存在：

注销前：

注销后：

LogoutServlet.java：

public class LogoutServlet extends HttpServlet {
    protected void doPost(HttpServletRequest request,
                          HttpServletResponse response)
            throws ServletException, IOException {
        doGet(request, response);
    }

    protected void doGet(HttpServletRequest request,
                         HttpServletResponse response)
            throws ServletException, IOException {
        try {
            HttpSession session = request.getSession(false);
            if (session != null) {
                session.removeAttribute("user");
                session.invalidate();
            }

            response.sendRedirect(request.getContextPath() +
                    "/home");
        }
        catch (Exception e)  {
            e.printStackTrace();
        }
    }
}

header.jsp：

<%@ page import="comediansapp.entities.main.User" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>

<div class = "header-container">
    <div class = "header">
        <%if(session.getAttribute("user") == null){%>

        <div class = "header-buttons">
            <a href="${pageContext.request.contextPath}/login">Login</a>
            <a href="${pageContext.request.contextPath}/signup">Signup</a>
        </div>

        <%
        } else {%>

        <div class="user-email">
            <%
                User user = (User) session.getAttribute("user");
                out.println(user.getFirstname() + " " +
                                user.getLastname());
            %>
        </div>

        <div class="button logout-button">
            Logout
        </div>

        <%
            }
        %>

    </div>
</div>

主页.jsp：


<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<jsp:include page="../shared/header.jsp" />

</body>
</html>

标签： javajspsessionservlets

java - 注销 servlet 不起作用：注销后，名字和注销按钮仍然可见

问题描述

解决方案

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