简单表单和模板：
import os.path import tornado.httpserver
import tornado.ioloop
import tornado.options
import tornado.web from tornado.options import define, options
define("port", default=8000, help="run on the given port", type=int) class IndexHandler(tornado.web.RequestHandler):
def get(self):
self.render('index.html') class PoemPageHandler(tornado.web.RequestHandler):
def post(self):
noun1 = self.get_argument('noun1')
noun2 = self.get_argument('noun2')
verb = self.get_argument('verb')
noun3 = self.get_argument('noun3')
self.render('poem.html', roads=noun1, wood=noun2, made=verb,
difference=noun3) if __name__ == '__main__':
tornado.options.parse_command_line()
app = tornado.web.Application(
handlers=[(r'/', IndexHandler), (r'/poem', PoemPageHandler)],
template_path=os.path.join(os.path.dirname(__file__), "templates")
)
http_server = tornado.httpserver.HTTPServer(app)
http_server.listen(options.port)
tornado.ioloop.IOLoop.instance().start()
poemmaker.py
输入页面：
<!DOCTYPE html>
<html>
<head><title>Poem Maker Pro</title></head>
<body>
<h1>Enter terms below.</h1>
<form method="post" action="/poem">
<p>Plural noun<br><input type="text" name="noun1"></p>
<p>Singular noun<br><input type="text" name="noun2"></p>
<p>Verb (past tense)<br><input type="text" name="verb"></p>
<p>Noun<br><input type="text" name="noun3"></p>
<input type="submit">
</form>
</body>
</html>
index.html
输出页面：
<!DOCTYPE html>
<html>
<head><title>Poem Maker Pro</title></head>
<body>
<h1>Your poem</h1>
<p>Two {{roads}} diverged in a {{wood}}, and I—<br>
I took the one less travelled by,<br>
And that has {{made}} all the {{difference}}.</p>
</body>
</html>
poem.html