requests模块demo

import urllib.request
import requests
from requests.auth import HTTPBasicAuth
from requests.auth import HTTPDigestAuth
import json

base_url = 'http://httpbin.org'

# 发送get请求
r = requests.get(base_url+'/get')
print(r.status_code)

#发送post请求
r = requests.post(base_url+'/post')
print(r.status_code)

#发送put请求
r = requests.put(base_url+'/put')
print(r.status_code)

#发送delete请求
r = requests.delete(base_url+'/delete')
print(r.status_code)

# 发送get请求 传递url参数
param_data={'user':'zxw123','password':''}
r = requests.get(base_url+'/get',params=param_data)
print(r.url)
print(r.status_code)
resonponse = urllib.request.urlopen("http://baidu.com")
html= resonponse
print(html)

# post传递body参数
from_data={'user':'zxw123','password':''}
r = requests.post(base_url+'/post',data = from_data)
print(r.status_code)
print(r.text)

# 请求头定制  将dict传递给header
from_data={'user':'zxw123','password':''}
header={'user-agent': 'Mozilla/5.0'}
r = requests.post(base_url+'/post',data = from_data,headers = header)
print(r.status_code)
print(r.text)

# 响应内容
from_data={'user':'zxw123','password':''}
header={'user-agent': 'Mozilla/5.0'}
r = requests.post(base_url+'/post',data = from_data,headers = header)
# 响应状态码
print(r.status_code)
# 响应内容
print(r.text)
# 响应内容以json格式
print(r.json())
# 响应头信息
print(r.headers)

# 设置cookie

cookie={'uesr':'beijing'}
r=requests.get(base_url+'/cookies',cookies = cookie)
print(r.text)

# 获取cookie
# 请求百度首页，获取cookie
r = requests.get('http://baidu.com')
print(type(r.cookies))
print(r.cookies)
for key,value in r.cookies.items():
    print(key+':'+value)

# 超时
# 设定timeout超时之后停止响应，防止请求没有响应而一直处于等待状态
cookie={'uesr':'beijing'}
r=requests.get(base_url+'/cookies',cookies = cookie,timeout = 10)
print(r.text)

# 文件上传  参数files
file={'file':open('zxw_logo.png','rb')}
r = requests.post(base_url+'/post',files=file)
print(r.text)

# session（会话）
# 接口之间经常有依赖关系，在没有session保存机制的情况下，第二个接口无法获取第一个接口的cookie值

# 设置cookie
r = requests.get(base_url+'/cookies/set/user/51zxw')
print(r.text)

# 获取cookie
r = requests.get(base_url+'/cookies')
print(r.text)

# 加入session之后，可以模拟同一对话而不用担心cookies问题，通常用于模拟成功登陆之后进行下一步操作
s = requests.Session()
# 设置cookie
r=s.get(base_url+'/cookies/set/user/51zxw')
print(r.text)

# 获取cookie
r =s.get(base_url+'/cookies')
print(r.text)

# ssl验证默认开启，验证失败会抛出SSLError
# r = requests.get('https://www.12306.cn')
# 关闭ssl验证
r=requests.get('https://www.12306.cn',verify=False)
print(r.text)

# 身份认证  BasicAuth
r = requests.get(base_url+'/basic-auth/51zxw/8888',auth=HTTPBasicAuth('51zxw',''))
print(r.text)

# 身份认证  DigestAuth
r = requests.get(base_url+'/digest-auth/auth/heiheiehi/23333',auth=HTTPDigestAuth('heiheihei',''))
print(r.text)

# # 代理设置
proxies = {'http':'http://219.142.132.146:4065'}
r = requests.get(base_url+'/get',proxies=proxies)
print(r.text)

# 流式请求， 接口返回多个结果

r = requests.get(base_url+'/stream/10',stream = True)
# 如果响应内容没有设置编码，则默认为utf-8
if r.encoding is None:
    r.encoding='utf-8'
# 对响应结果进行迭代处理
for line in r.iter_lines(decode_unicode=True):
    if line:
        data=json.loads(line)
        print(data['id'])