不是CL也不是Web编程专家,所以我可能会遗漏一些非常明显的东西:我尝试在第1页设置会话值并在第2页中获取结果。第2页没有显示任何内容,但是......
(ql:quickload "cl-who")
(ql:quickload "hunchentoot")
(defpackage :sessmin
(:use :cl :cl-who :hunchentoot))
(in-package :sessmin)
(defun start-server (port)
(start (make-instance 'easy-acceptor :port port)))
(setf (html-mode) :html5)
(define-easy-handler (page1 :uri "/page1") ()
(start-session)
(setf (session-value :sv) "testvalue")
(with-html-output-to-string
(*standard-output* nil :prologue t :indent t)
(:html :lang "en"
(:head
(:meta :charset "utf-8")
(:title "page1"))
(:body
(:p "Session Page 1")
(:p "Go to next page" (:a :href "page2" "here"))))))
(define-easy-handler (page2 :uri "/page2") ()
(with-html-output-to-string
(*standard-output* nil :prologue t :indent t)
(:html :lang "en"
(:head
(:meta :charset "utf-8")
(:title "page2"))
(:body
(:p "Session Page 2")
(:p "Session Page 2, value:" (session-value :sv))))))
(start-server 8080)
编辑:得到了“(”我的第一个版本错了,但在修正后仍然无效......
答案 0 :(得分:2)
不是Hunchentoot专家,但我想您忘了关闭:head
。
答案 1 :(得分:2)
您的问题不是没有设置会话值,而是以您的cl-who格式设置。
(:p "Session Page 2, value:" (session-value :sv))
不会打印会话值; session-value
的返回值被忽略。
;; try this:
(:p "Session Page 2, value:" (str (session-value :sv)))
;; or, if you need to html-escape the value,
(:p "Session Page 2, value:" (esc (session-value :sv)))