百度请求测试

import tornado.web
import tornado.ioloop
import tornado.httpclient


class IndexHandler(tornado.web.RequestHandler):

    def get(self, *args, **kwargs):

        wd = self.get_argument('wd')
        # 请求百度地址
        url = 'https://www.baidu.com/s?wd={}'.format(wd)
        # 获取客户端，fetch（rul）获取源码
        client = tornado.httpclient.HTTPClient()
        print('同步测试')
        response = client.fetch(url)
        print(response)
        self.write('index')


def make_app():
    return tornado.web.Application(handlers=[
        (r'/index/', IndexHandler),
    ])


if __name__ == '__main__':
    app = make_app()
    app.listen(8000)
    tornado.ioloop.IOLoop.current().start()

async1

import tornado.web
import tornado.web
import tornado.ioloop
import tornado.httpclient


class IndexHandler(tornado.web.RequestHandler):

    @tornado.web.asynchronous   # 让io不主动关闭
    def get(self, *args, **kwargs):

        wd = self.get_argument('wd')
        url = 'https//www.baidu.com/s?wd={name}'.format(name=wd)
        # 获取异步客户端，fetch（url， callback回调）
        clicent = tornado.httpclient.AsyncHTTPClient()
        print('异步请求开始')
        clicent.fetch(url, callback=self.on_response)
        self.write('请求成功')


    def on_response(self, response):
        print(response)
        # 关闭io
        self.finish()


def make_app():
    return tornado.web.Application(handlers=[
        (r'/index/', IndexHandler),
    ])


if __name__ == '__main__':
    app = make_app()
    app.listen(8000)
    tornado.ioloop.IOLoop.current().start()

aysnc2

import tornado.web
import tornado.ioloop
import tornado.httpclient
import tornado.gen


class IndexHandler(tornado.web.RequestHandler):

    # @tornado.gen.coroutine  # 让io不主动关闭
    # def get(self, *args, **kwargs):
    #     wd = self.get_argument('wd')
    #     url = 'https//www.baidu.com/s?wd={name}'.format(name=wd)
    #     # 获取异步客户端，fetch（url， callback回调）
    #     clicent = tornado.httpclient.AsyncHTTPClient()
    #     print('携程是程序')
    #     response = yield clicent.fetch(url)
    #     print(response)

    async def get(self, *args, **kwargs):
        wd = self.get_argument('wd')
        url = 'https//www.baidu.com/s?wd={name}'.format(name=wd)
        # 获取异步客户端，fetch（url， callback回调）
        clicent = tornado.httpclient.AsyncHTTPClient()
        print('携程是程序')
        response = await clicent.fetch(url)
        print(response)

    def on_response(self, response):
        print(response)
        # 关闭io
        self.finish()


def make_app():
    return tornado.web.Application(handlers=[
        (r'/index/', IndexHandler),
    ])


if __name__ == '__main__':
    app = make_app()
    app.listen(8000)
    tornado.ioloop.IOLoop.current().start()