Python使用grequests并发发送请求的示例

import grequests

req_list = [ # 请求列表
 grequests.get('http://httpbin.org/get?a=1&b=2'),
 grequests.post('http://httpbin.org/post', data={'a':1,'b':2}),
 grequests.put('http://httpbin.org/post', json={'a': 1, 'b': 2}),
]

res_list = grequests.map(req_list) # 并行发送，等最后一个运行完后返回
print(res_list[0].text) # 打印第一个请求的响应文本

import requests
import time

start = time.time()
res_list = [requests.get('https://github.com') for i in range(100)]
print(time.time()-start)

import grequests
import time

start = time.time()
req_list = [grequests.get('https://github.com') for i in range(100)]
res_list = grequests.map(req_list)
print(time.time()-start)

import grequests

def err_handler(request, exception):
 print("请求出错")

req_list = [
 grequests.get('http://httpbin.org/delay/1', timeout=0.001), # 超时异常
 grequests.get('http://fakedomain/'), # 该域名不存在
 grequests.get('http://httpbin.org/status/500') # 正常返回500的请求
]

res_list = grequests.map(reqs, exception_handler=err_handler)
print(res_list)