如何阻止jsp在页面加载时创建会话 [英] how to stop jsp from creating sessions on page load

问题描述

我知道JSP将在页面加载时自动创建会话.在我的登录页面中，我不希望它通过单击提交按钮来创建会话，并且如果用户登录失败，我也会在会话中发送错误消息，以便它应该接受已经创建的会话，并且在显示错误消息会话后应该无效.我该如何做到这一点.

I know that JSP will create sessions automatically on page load. In my login page I don't want it to create sessions util i click on submit button, and also if user login fails I am sending error message in session so that time it should accept the session already created and after showing error message session should be invalidated. How can i achieve this.

我在JSP中尝试了session = false，这在我正在获取上一个会话以显示错误消息的地方显示了错误.

I have tried session = false in JSP, this is showing error where i am getting previous session to show error message.

我也尝试使用application.setAttribute进行页面点击计数，但这在第一次加载时显示了llegalStateException.

I have also tried page hit count using application.setAttribute but this is showing illegalStateException on first load itself.

有什么想法吗?

推荐答案

这避免了会话创建

<%@ page session="false" %>

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