先来一段同步的httpclient使用代码
url = ‘https://www.baidu.com/‘http_client = HTTPClient()response = http_client.fetch(url)print("xu jun test" + str(response.body))然后是异步调用AsyncHTTPClient:
url = ‘https://www.baidu.com/‘async def test(): ???http_client = AsyncHTTPClient() ???result = await http_client.fetch(url) ???print(result.body)if __name__ == ‘__main__‘: ???io_loop = ioloop.IOLoop.current() ???io_loop.run_sync(test)
还有一种是通过回调函数的方式使用,注意如果没反应,要在协程中使用
def handle_request(response): ???if response.error: ???????print("Error:", response.error) ???else: ???????print(response.body)url = ‘https://www.baidu.com/‘http_client = AsyncHTTPClient()http_client.fetch(url, handle_request)PS.由于tornado的版本升级较快,网上很多文档和API都过时了.所有有时候直接看源代码,或者找网上的示例代码,会更有效!
tornado关于AsyncHTTPClient的使用笔记
原文地址：https://www.cnblogs.com/xujanus/p/8605554.html