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Session 来自请求的会话和来自PageContext的会话之间的差异

session jakarta-ee

Session 来自请求的会话和来自PageContext的会话之间的差异,session,jakarta-ee,pagecontext,Session,Jakarta Ee,Pagecontext,有区别吗 PageContext pageContext = (PageContext) getJspContext(); HttpSession session = pageContext.getSession(); =通过PageContext的会话 PageContext pageContext = (PageContext) getJspContext(); HttpServletRequest request = (HttpServletRequest) pageContext.ge

有区别吗

PageContext pageContext = (PageContext) getJspContext();
HttpSession session = pageContext.getSession();
=通过PageContext的会话

PageContext pageContext = (PageContext) getJspContext();
HttpServletRequest request = (HttpServletRequest) pageContext.getRequest();
HttpSession session = request.getSession();
=通过请求的会话

否，这两个会话对象之间没有差异。提供便于从JSP页面访问HTTP和会话相关对象的方法，包括

会话提供了在为请求提供PageContext时跨多个页面请求进行标识的方法