grequests，并发执行接口请求的方法（简易版）

有时候需要处理很多请求，显然，一个一个去处理是要花费很多时间的

我们就需要用到并发的方式，python并发请求的方法很多，从简单到复杂。

本案例，介绍一个超级简单，使用grequests库，实现并发请求

案例应该是一系列查询的操作，具体忘记了，很久前写的，接口参数狠简单，headers、body，带上cookie就好了

因为是查询一组数据，所有先把查询对象变量化（可以写到excel里去读，这里就不介绍了，提供这个思路）

构造头信息，直接复制

执行请求步骤，这一步是核心内容

完整代码

import grequests

import requests

cookies = {
    '__guid': 'x',
    'UM_distinctid': '1713e1c320b108-x-4e4c0f20-15f900-1713e1c320c299',
    'token': 'Bearer xxx.xxx.K6Z2EvPnaKLZSJW2TGBJiLvVro8wnxpFbrMhcfkHmVm8',
    'online.xxx.com_mid3503': 'xxx',
    'wx_Guestcookie19009': '%7b%22StoreId%22%xx%2c%xx%22%3a0%2c%x%22%3a%22%22%2c%22QueitErr%22%3a%22%22%7d',
    'wx_Storecookie19009': 'xx',
    'online.xxx.com': 'xx',
    'production.xxx.com': 'xxxx',
    'production.xxx.com_mid47243': 'xxxxx',
    'wx_Guestcookie2948': '%7b%22StoreId%22%3a2948%2c%xxx%22%3a0%2c%22WxOpenId%22%3a%22%22%2c%22QueitErr%22%3a%22%22%7d',
    'vshop_cookie2948': 'xxxx',
    'sensorsdata2015jssdkcross': '%7B%22distinct_id%22%3A%xxx-076acb82c3e26f-4e4c0f20-1440000-1713e1c047632b%22%2C%22%24device_id%22%3A%221713e1c0475449-076acb82c3e26f-4e4c0f20-1440000-1713e1c047632b%22%2C%22props%22%3A%7B%22%24latest_traffic_source_type%22%3A%22%E7%9B%B4%E6%8E%A5%E6%B5%81%E9%87%8F%22%2C%22%24latest_referrer%22%3A%22%22%2C%22%24latest_referrer_host%22%3A%22%22%2C%22%24latest_search_keyword%22%3A%22%E6%9C%AA%E5%8F%96%E5%88%B0%E5%80%BC_%E7%9B%B4%E6%8E%A5%E6%89%93%E5%BC%80%22%7D%2C%22ip_address%22%3A%22175.0.128.172%22%7D',
    'monitor_count': '15',
}

headers = {
    'Connection': 'keep-alive',
    'Pragma': 'no-cache',
    'Cache-Control': 'no-cache',
    'Accept': 'application/json, text/plain, */*',
    'Origin': 'https://my.xxx.com',
    'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36',
    'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
    'Sec-Fetch-Site': 'same-origin',
    'Sec-Fetch-Mode': 'cors',
    'Referer': 'https://my.xxxx.com/Order/Delivered',
    'Accept-Encoding': 'gzip, deflate, br',
    'Accept-Language': 'zh-CN,zh;q=0.9',
}

data1 = {'ids': '1086131'}
data2 = {'ids': '1086132'}
data3 = {'ids': '1086133'}
data4 = {'ids': '1086134'}
data5 = {'ids': '1086135'}
data6 = {'ids': '1086136'}
data7 = {'ids': '1086137'}
data8 = {'ids': '1086138'}
data9 = {'ids': '1086139'}
data10 = {'ids': '1086140'}

req_list = [   # 请求列表
    grequests.post('https://my.xx.com/Order/ConfirmDelivery', headers=headers, cookies=cookies, data=data1),
    grequests.post('https://my.xxx.com/Order/ConfirmDelivery', headers=headers, cookies=cookies, data=data2),
    grequests.post('https://my.xxx.com/Order/ConfirmDelivery', headers=headers, cookies=cookies, data=data3),
    grequests.post('https://my.xxx.com/Order/ConfirmDelivery', headers=headers, cookies=cookies, data=data4),
    grequests.post('https://my.xxx.com/Order/ConfirmDelivery', headers=headers, cookies=cookies, data=data4),
    grequests.post('https://my.xx.com/Order/ConfirmDelivery', headers=headers, cookies=cookies, data=data5),
    grequests.post('https://my.xxx.com/Order/ConfirmDelivery', headers=headers, cookies=cookies, data=data6),
    grequests.post('https://my.xxx.com/Order/ConfirmDelivery', headers=headers, cookies=cookies, data=data7),
    grequests.post('https://my.xxx.com/Order/ConfirmDelivery', headers=headers, cookies=cookies, data=data8),
    grequests.post('https://my.xx.com/Order/ConfirmDelivery', headers=headers, cookies=cookies, data=data10),

]

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