本文结束使用 Requests 发送网络请求。requests是一个很实用的Python HTTP客户端库，编写爬虫和测试服务器响应数据时经常会用到。可以说，Requests 完全满足如今网络的需求。

安装方式一般采用$ pip install requests。 一开始要导入 Requests 模块： import requests

发送get请求

url = 'http://api.xxx.com/api/user/stu_info?stu_name=小黑马' req = requests.get(url) #发送get请求 print(req.text) #获取结果 print(req.json()) #获取结果直接就是字典，必须返回的是json串，才能用.json方法。

发送post请求

url = 'http://api.xxx.com/api/user/login' data = {'username':'xiaohei','passwd':'aA123456'} req = requests.post(url,data) #发送post请求，第一个参数是url，第二个参数是请求的数据 print(req.json())

入参是json的

url = 'http://api.xxx.com/api/user/add_stu' data = {'name':'丁飞','grade':'巨蟹座','phone':31971891223} req = requests.post(url,json=data) #发送post请求，第一个参数是url，第二个参数是请求的数据 print(req.json())

添加cookie

url = 'http://api.xxx.com/api/user/gold_add' data = {'stu_id':231,'gold':1000} cookie = {'xiaohei':'6d195100b95a43046d2e385835c6e2c2'} req = requests.post(url,data,cookies=cookie) print(req.json())

添加header

url='http://api.xxx.com/api/user/all_stu' mpp = {'Referer':'http://api.xxx.com/','User-Agent':'Chore'} res = requests.get(url,headers=mpp) print(res.json())

上传文件

url = 'http://api.xxx.com/api/file/file_upload' f = open(r'C:\Users\bjxiaohei\Desktop\ad.cpm.schedulingInfo.v1.json','rb') r = requests.post(url,files={'file':f}) print(r.json())

下载文件

url= 'http://www.besttest.cn/data/upload/201710/f_36b1c59ecf3b8ff5b0acaf2ea42bafe0.jpg' r = requests.get(url) print(r.status_code) #获取请求的状态码 print(r.content) #获取返回结果二进制格式的 fw = open(r'bt.jpg','wb') fw.write(r.content) fw.close()

保存网页

url = 'http://www.xxx.com/archives/630' r = requests.get(url) f = open('xxx.html','wb') f.write(r.content) f.close()

转载于:https://www.cnblogs.com/lincy/p/8395084.html