python tornado框架使用

处理方法 t_handler.py

from tornado.web import RequestHandler
class IndexHandler(RequestHandler):
   def get(self):
     name=self.get_argument('name','world')
     self.write('hello '+name)

class AddHandler(RequestHandler):
  def get(self):
    val1=self.get_argument('val1',0)
    val2=self.get_argument('val2',0)
    val3=int(val1)+int(val2)
    self.write(str(val3))

class MinusHandler(RequestHandler):
  def get(self):
    val1=self.get_argument('val1',0)
    val2=self.get_argument('val2',0)
    val3=int(val1)-int(val2)
    self.write(str(val3))

Url路径，处理方法对应关系 t_url.py

from t_handler import *
url=[
(r'/',IndexHandler),
(r'/page1',AddHandler),
(r'/page2',MinusHandler)
]

启动进程 t_tornado.py

tornado.options
import tornado.web
from tornado.options import define,options
import t_url
define("port",default=8000,help="run on port",type=int)

if __name__=="__main__":
tornado.options.parse_command_line()

#初始化web框架
app=tornado.web.Application(t_url.url)
#开启端口监听服务
http_server=tornado.httpserver.HTTPServer(app)
http_server.listen(options.port)
#启动服务进程
tornado.ioloop.IOLoop.instance().start()

运行结果：

浏览器访问结果：