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!
