最新进展:Emacs-cgi 加入对存取 Cookie 和 Session 的支持,以及页面之间跳转(redirect和forward)。项目地址:https://github.com/redraiment/emacs-cgi。下面以一个登入页面作为示例:
首先是首页:如果用户为登入,显示输入框提示用户输入用户名;否则输出欢迎词。
#!/usr/local/bin/elisp (require 'cgi) (html (head (title "Hello Session") (meta (http-equiv . "Content-Type") (content . "text/html; charset=UTF-8"))) (body (h1 "Welcome to Emacs Lisp CGI") <% (if (cgi/session "name") (form (method . post) (action . "logout.el") (div "Hello " <%= (cgi/session "name") %> (button (type . submit) logout))) (form (method . post) (action . "login.el") (div "My name is: " (input (type . text) (name . name)) (button (type . submit) Submit)))) %>)))
然后登入处理页面,在 session 中设置名字。
#!/usr/local/bin/elisp (require 'cgi) (if (cgi/param "name") (cgi/session "name" (cgi/param "name"))) (cgi/redirect "index.el")
最后是退出处理页面,即清空 session 中的值。
#!/usr/local/bin/elisp (require 'cgi) (cgi/remove-session "name") (cgi/redirect "index.el")
运行效果: