有个朋友让我搞搞tornado框架,说实话,这个框架我用的不多。。。
我就把自己的一些个运维研发相关的例子,分享给大家。
怎么安装tornado,我想大家都懂。
pip install tornado
再来说说他的一些个模块,官网有介绍的。我这里再啰嗦的复读机一下,里面掺夹我的理解。
主要模块
web - FriendFeed 使用的基础 Web 框架,包含了 Tornado 的大多数重要的功能,反正你进入就对了。
escape - XHTML, JSON, URL 的编码/解码方法
database - 对 MySQLdb 的简单封装,使其更容易使用,是个orm的东西。
template - 基于 Python 的 web 模板系统,类似jinja2
httpclient - 非阻塞式 HTTP 客户端,它被设计用来和 web 及 httpserver 协同工作,这个类似加个urllib2
auth - 第三方认证的实现(包括 Google OpenID/OAuth、Facebook Platform、Yahoo BBAuth、FriendFeed OpenID/OAuth、Twitter OAuth)
locale - 针对本地化和翻译的支持
options - 命令行和配置文件解析工具,针对服务器环境做了优化,接受参数的
底层模块
httpserver - 服务于 web 模块的一个非常简单的 HTTP 服务器的实现
iostream - 对非阻塞式的 socket 的简单封装,以方便常用读写操作
ioloop - 核心的 I/O 循环
再来说说tornado接受请求的方式:
关于get的方式
class MainHandler(tornado.web.RequestHandler): def get(self): self.write("You requested the main page") class niubi(tornado.web.RequestHandler): def get(self, story_id): self.write("xiaorui.cc niubi'id is " + story_id) application = tornado.web.Application([ (r"/", MainHandler), (r"/niubi/([0-9]+)", niubi), ])
这样我们访问 /niubi/123123123 就会走niubi这个类,里面的get参数。
关于post的方式
class MainHandler(tornado.web.RequestHandler): def get(self): self.write('<html><body><form action="/" method="post">' '<input type="text" name="message">' '<input type="submit" value="Submit">' '</form></body></html>') def post(self): self.set_header("Content-Type", "text/plain") self.write("xiaorui.cc and " + self.get_argument("message"))
在tornado里面,一般get和post都在一个访问路由里面的,只是按照不同method来区分相应的。
扯淡的完了,大家测试下get和post。
import tornado.ioloop import tornado.web import json class hello(tornado.web.RequestHandler): def get(self): self.write('Hello,xiaorui.cc') class add(tornado.web.RequestHandler): def post(self): res = Add(json.loads(self.request.body)) self.write(json.dumps(res)) def Add(input): sum = input['num1'] + input['num2'] result = {} result['sum'] = sum return result application = tornado.web.Application([ (r"/", hello), (r"/add", add), ]) if __name__ == "__main__": application.listen(8888) tornado.ioloop.IOLoop.instance().start()
#大家可以写个form测试,也可以用curl -d测试

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