python怎么并发上千个请求
在python中实现并发上千个请求有多种方法。以下是一些常用的方法:
import threading import requests def send_request(url): response = requests.get(url) print(response.text) urls = [...]# 存储要发送请求的URL列表 threads = [] for url in urls: thread = threading.Thread(target=send_request, args=(url,)) thread.start() threads.append(thread) for thread in threads: thread.join()
import asyncio import aiohttp async def send_request(url): async with aiohttp.ClientSession() as session: async with session.get(url) as response: data = await response.text() print(data) urls = [...]# 存储要发送请求的URL列表 loop = asyncio.get_event_loop() tasks = [send_request(url) for url in urls] loop.run_until_complete(asyncio.wait(tasks)) loop.close()
使用grequests库的示例:
import grequests urls = [...]# 存储要发送请求的URL列表 requests = [grequests.get(url) for url in urls] responses = grequests.map(requests) for response in responses: print(response.text)
使用gevent库的示例:
import gevent import requests def send_request(url): response = requests.get(url) print(response.text) urls = [...]# 存储要发送请求的URL列表 greenlets = [gevent.spawn(send_request, url) for url in urls] gevent.joinall(greenlets)
无论选择哪种方法,都要注意控制并发请求的数量,以避免过多的资源消耗或服务器超载。
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