import requests url = 'https://www.example.com' # 使用Session对象作为上下文管理器 with request...
session=requests.session()print(session.headers)#输出的默认请求头配置结果为:{'User-Agent': 'python-requests/2.27.1', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive'}print(session.headers.items())#输出的默认请求头配置结果为:ItemsView({'User-Agent': 'py...
adapter = requests.adapters.HTTPAdapter( proxy=proxies, max_retries=3 ) #访问三次网站,使用相同的Session(keep-alive),均能够保持相同的外网IP with requests.session() as s: # 设置cookie # cookie_dict = {“JSESSION”:“123456789”} # cookies = requests.utils.cookiejar_from_dict(cookie_dict, ...
| >>> with requests.Session() as s: | >>> s.get('https://httpbin.org/get') | <Response [200]> 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 1.举个例子,模拟百度登录场景 2.查看登录后百度账号的cookies值,经过观察发现是由”BAIDUID“和"BDUSS" 3.导入requests模块,使用ses...
session.rollback()finally: session.close() 装饰器@contextmanager 只是省略了 __enter__() / __exit__() 的编写,但并不负责实现资源的“获取”和“清理”工作;“获取”操作需要定义在 yield 语句之前,“清理”操作需要定义 yield 语句之后,这样 with 语句在执行 __enter__() / __exit__() 方法时会...
adapter=requests.adapters.HTTPAdapter(proxy=proxies,max_retries=3)#访问三次网站,使用相同的Session(keep-alive),均能够保持相同的外网IPwithrequests.session()ass:# 设置cookie # cookie_dict={“JSESSION”:“123456789”}# cookies=requests.utils.cookiejar_from_dict(cookie_dict,cookiejar=None,overwrite=Tru...
import asyncio import aiohttp async def download_image(session, url): async with session.get(url) as response: if response.status == 200: filename = url.split("/")[-1] with open(filename, "wb") as f: f.write(await response.read()) print(f"Downloaded: {filename}") async def mai...
session可以进行多项操作,比如post, get, put, head等。 基本用法: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 async with ClientSession() as session: async with session.get(url) as response: aiohttp异步实现的例子: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 import asyncio from ...
async with aiohttp.ClientSession() as session: async with session.get(url) as response: return await response.text() async def main(): urls = ["http://example.com" for _ in range(5)] tasks = [fetch(url) for url in urls]
importasyncioimportaiohttpasyncdeffetch_data(url):asyncwithaiohttp.ClientSession()assession:asyncwithsession.get(url)asresponse:data=awaitresponse.text()# 异步等待API返回数据print(f"收到数据: {data[:100]}")# 只打印前100个字符returndataasyncdefmain():urls=["https://api.example.com/data1","htt...