tornado中的gen.sleep与time.sleep

- 日理万妓 2023-01-14 10:54 175阅读 0赞

one.py

#!/usr/bin/env python
    # -*- coding:utf-8 -*-
    # Author: Liang Xian Sen
    # Python 3.5
    # Date: 2017/12/13
    import tornado.web
    import time
    from tornado import gen
    class IndexHandler(tornado.web.RequestHandler):
        def get(self):
            self.write('index')
    async def doing():
        await gen.sleep(10)
        return 'Non-Blocking'
    class NonBlockingHandler(tornado.web.RequestHandler):
        async def get(self):
            result1, result2 = await gen.convert_yielded([doing(), doing()])
            self.write(result1)
    application = tornado.web.Application([
        (r"/index", IndexHandler),
        (r"/nonblocking", NonBlockingHandler),
    ])
    if __name__ == "__main__":
        application.listen(8888)
        tornado.ioloop.IOLoop.instance().start()

two.py

#!/usr/bin/env python
    # -*- coding:utf-8 -*-
    # Author: Liang Xian Sen
    # Python 3.5
    # Date: 2017/12/13
    import tornado.web
    import time
    from tornado import gen
    class IndexHandler(tornado.web.RequestHandler):
        def get(self):
            self.write('index')
    async def doing():
        await time.sleep(10)
        return 'Non-Blocking'
    class NonBlockingHandler(tornado.web.RequestHandler):
        async def get(self):
            result1, result2 = await gen.convert_yielded([doing(), doing()])
            self.write(result1)
    application = tornado.web.Application([
        (r"/index", IndexHandler),
        (r"/nonblocking", NonBlockingHandler),
    ])
    if __name__ == "__main__":
        application.listen(8888)
        tornado.ioloop.IOLoop.instance().start()

<table style="width:500px;"> 
 <tbody> 
 <tr> 
 <td style="width:61px;">文件</td> 
 <td style="width:241px;">操作</td> 
 <td>效果</td> 
 </tr> 
 <tr> 
 <td style="width:61px;">one.py</td> 
 <td style="width:241px;"> 分别打开: <a href="http://127.0.0.1:8888/nonblocking" rel="nofollow">http://127.0.0.1:8888/nonblocking</a> <a href="http://127.0.0.1:8888/nonblocking" rel="nofollow">http://127.0.0.1:8888/</a>index </td> 
 <td> 可以立刻打开 <a href="http://127.0.0.1:8888/nonblocking" rel="nofollow">http://127.0.0.1:8888/</a>index 网页立刻打开 </td> 
 </tr> 
 <tr> 
 <td style="width:61px;">two.py</td> 
 <td style="width:241px;"> 分别打开: <a href="http://127.0.0.1:8888/nonblocking" rel="nofollow">http://127.0.0.1:8888/nonblocking</a> <a href="http://127.0.0.1:8888/nonblocking" rel="nofollow">http://127.0.0.1:8888/</a>index </td> 
 <td> <a href="http://127.0.0.1:8888/nonblocking" rel="nofollow">http://127.0.0.1:8888/</a>index 会阻塞,网页转圈圈. 根据[1]中的说法,叫作"路由层阻塞" </td> 
 </tr> 
 </tbody> 
</table>

**Reference:**

\[1\][Tornado实现简单的异步][Tornado]

[Tornado]: https://www.cnblogs.com/jingqi/p/8137953.html