CherryPy 将AJAX应用于应用程序

2024-01-01 21:26 更新

考虑一个应用程序，它包含一个名为“media”的文件夹，其中包含index.html和Jquery插件，以及一个带有AJAX实现的文件。让我们将文件名称视为“ajax_app.py”

ajax_app.py

import cherrypy
import webbrowser
import os
import simplejson
import sys
MEDIA_DIR = os.path.join(os.path.abspath("."), u"media")
class AjaxApp(object):
   @cherrypy.expose
   def index(self):
      return open(os.path.join(MEDIA_DIR, u'index.html'))
   @cherrypy.expose
   def submit(self, name):
      cherrypy.response.headers['Content-Type'] = 'application/json'
      return simplejson.dumps(dict(title="Hello, %s" % name))
config = {'/media':
   {'tools.staticdir.on': True,
   'tools.staticdir.dir': MEDIA_DIR,}
}
def open_page():
webbrowser.open("http://127.0.0.1:8080/")
cherrypy.engine.subscribe('start', open_page)
cherrypy.tree.mount(AjaxApp(), '/', config=config)
cherrypy.engine.start()

“AjaxApp”类重定向到“index.html”的网页，该网页包含在媒体文件夹中。

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" 
   " http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns = "http://www.w3.org/1999/xhtml" lang = "en" xml:lang = "en">
   <head>
      <title>AJAX with jQuery and cherrypy</title>
      <meta http-equiv = " Content-Type" content = " text/html; charset = utf-8" />
      <script type = " text/javascript" src = " /media/jquery-1.4.2.min.js"></script>
      <script type = " text/javascript">
         $(function() {
            // When the testform is submitted...
            $("#formtest").submit(function() {
               // post the form values via AJAX...
               $.post('/submit', {name: $("#name").val()}, function(data) {
                  // and set the title with the result
                  $("#title").html(data['title']) ;
               });
               return false ;
            });
         });
      </script>
   </head>
   <body>
      <h1 id = "title">What's your name?</h1>
      <form id = " formtest" action = " #" method = " post">
         <p>
            <label for = " name">Name:</label>
            <input type = " text" id = "name" /> <br />
            <input type = " submit" value = " Set" />
         </p>
      </form>
   </body>
</html>

AJAX的功能包含在

输出 (Output)

上面的代码将产生以下输出 -

Ajax输出

一旦用户提交了值，就会实现AJAX功能，并将屏幕重定向到表单，如下所示 -

输出屏幕

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