发起请求
async def fetch():
async with aiohttp.ClientSession() as session:
async with session.get('https://www.baidu.com') as resposne:
print(await resposne.text())
loop = asyncio.get_event_loop()
tasks = [fetch(),]
loop.run_until_complete(asyncio.wait(tasks))
添加请求参数
params = {'key': 'value', 'page': 10}
async def fetch():
async with aiohttp.ClientSession() as session:
async with session.get('https://www.baidu.com/s',params=params) as resposne:
print(await resposne.url)
loop = asyncio.get_event_loop()
tasks = [fetch(),]
loop.run_until_complete(asyncio.wait(tasks))
自定义User-Agent
url = 'http://httpbin.org/user-agent'
headers = {'User-Agent': 'test_user_agent'}
async def fetch():
async with aiohttp.ClientSession() as session:
async with session.get(url,headers=headers) as resposne:
print(await resposne.text())
loop = asyncio.get_event_loop()
tasks = [fetch(),]
loop.run_until_complete(asyncio.wait(tasks))
自定义cookies
url = 'http://httpbin.org/cookies'
cookies = {'cookies_name': 'test_cookies'}
async def fetch():
async with aiohttp.ClientSession() as session:
async with session.get(url,cookies=cookies) as resposne:
print(await resposne.text())
loop = asyncio.get_event_loop()
tasks = [fetch(),]
loop.run_until_complete(asyncio.wait(tasks))
post字符串
url = 'http://httpbin.org'
payload = {'username': 'zhang', 'password': '123456'}
async def fetch():
async with aiohttp.ClientSession() as session:
async with session.post(url, data=payload) as resposne:
print(await resposne.text())
loop = asyncio.get_event_loop()
tasks = [fetch(), ]
loop.run_until_complete(asyncio.wait(tasks))
post文件
url = 'http://httpbin.org'
files = {'file': open('test.txt', 'rb')}
async def fetch():
async with aiohttp.ClientSession() as session:
async with session.post(url, data=files) as resposne:
print(await resposne.text())
loop = asyncio.get_event_loop()
tasks = [fetch(), ]
loop.run_until_complete(asyncio.wait(tasks))
设置代理
url = "http://python.org"
async def fetch():
async with aiohttp.ClientSession() as session:
async with session.get(url, proxy="http://some.proxy.com") as resposne:
print(resposne.status)
loop = asyncio.get_event_loop()
tasks = [fetch(), ]
loop.run_until_complete(asyncio.wait(tasks))
设置认证代理
url = "http://python.org"
async def fetch():
async with aiohttp.ClientSession() as session:
proxy_auth = aiohttp.BasicAuth('user', 'pass')
async with session.get(url, proxy="http://some.proxy.com", proxy_auth=proxy_auth) as resposne:
print(response.status)
loop = asyncio.get_event_loop()
tasks = [fetch(), ]
loop.run_until_complete(asyncio.wait(tasks))
# 下面的方法也可以
url = "http://python.org"
async def fetch():
async with aiohttp.ClientSession() as session:
async with session.get(url, proxy="http://user:[email protected]") as response:
print(response.status)
loop = asyncio.get_event_loop()
tasks = [fetch(), ]
loop.run_until_complete(asyncio.wait(tasks))