网络编程--requests模块

requests模块：

import requests

url = 'http://127.0.0.1:8888/login'
data = {"username":"zjr","password":"1"}
r = requests.get(url,data)
# r = requests.post(url,data)
print(type(r.json()))#返回字典
print(r.json())#返回字典
print(r.text)#返回字符串
print(r.content)#返回2进制
print(r.status_code)#返回状态码
print(r.headers)


#get请求
r = requests.get(url,data)
#post请求
r = requests.post(url,data)
#Cookie:
cookie  = {'wp-settings-1':'1','PHPSESSID':'xxxxx'}
headers = {
    'user-agent':'xxxx',
    'cookie':'wp-settings-1=libraryContent%3Dbrowse%26posts_list_mode%3Dexcerpt%26editor%3Dtinymce%26post_dfw%3Doff%26imgsize%3Dfull%26editor_plain_text_paste_warning%3D1%26hidetb%3D1; wp-settings-time-1=1573143656; comment_author_8ec14a05b6903cd9021ece26c7b908a0=111; PHPSESSID=2e33445700b8381f67cafb40ee147480'}

#params是把参数传到url后头的
r = requests.post(url,data=data,params={"version":1.0},cookies=cookie)#
r = requests.post(url,data=data,params={"version":1.0},headers=headers)

#上传文件
url = 'http://api.nnzhp.cn/api/file/file_upload'
data = {'file':open('tools.py','rb')}
r = requests.post(url,files=data)
print(r.text)

#下载图片
url='https://pics0.baidu.com/feed/e7cd7b899e510fb30eafd55dd07a8d92d0430c11.png?token=7e3ad862ab6c3d9dd51f4a460cb4688e'
r = requests.get(url,verify=False)#verify=False 可解决https报错问题
with open('a.jpg','wb') as f:
    f.write(r.content)

python自带的模块：

#python自带的模块，其实requests也是根据自带模块封装的
from urllib import request
from urllib.parse import urlencode
import requests
import json

#开发好了一个接口  server
#请求接口  client

url = 'http://127.0.0.1:8999/login?username=niuhanyang2&password=1'
req = request.urlopen(url)#get请求
dic = json.loads(req.read().decode())

print(urlencode(data))
req = request.urlopen(url,urlencode(data).encode())
dic = json.loads(req.read().decode())
print(dic)