一文带你玩转python中的requests函数

pip install requests

import requests
# 发送GET请求
response = requests.get('https://api.example.com/data')
# 输出响应内容
print(response.text)

import requests
# 发送带参数的GET请求
params = {'key': 'value'}
response = requests.get('https://api.example.com/data', params=params)
# 输出响应内容
print(response.text)

import requests
# 发送POST请求
data = {'key': 'value'}
response = requests.post('https://api.example.com/data', data=data)
# 输出响应内容
print(response.text)

import requests
# 发送带参数的POST请求
data = {'key1': 'value1', 'key2': 'value2'}
response = requests.post('https://api.example.com/data', data=data)
# 输出响应内容
print(response.text)

import requests
# 发送JSON数据
json_data = {'key': 'value'}
response = requests.post('https://api.example.com/data', json=json_data)
# 输出响应内容
print(response.text)

import requests
# 发送文件
files = {'file': open('data.txt', 'rb')}
response = requests.post('https://api.example.com/upload', files=files)
# 输出响应内容
print(response.text)

import requests
# 设置请求头
headers = {'User-Agent': 'Mozilla/5.0'}
response = requests.get('https://api.example.com/data', headers=headers)
# 输出响应内容
print(response.text)

import requests
# 设置超时时间为5秒
timeout = 5
response = requests.get('https://api.example.com/data', timeout=timeout)
# 输出响应内容
print(response.text)

import requests
# 发送GET请求
response = requests.get('https://api.example.com/data')
# 获取响应状态码
status_code = response.status_code
# 获取响应头
headers = response.headers
# 获取响应内容
content = response.text
# 输出响应状态码、响应头和响应内容
print("状态码:", status_code)
print("响应头:", headers)
print("响应内容:", content)

import requests
try:
 # 发送GET请求
 response = requests.get('https://api.example.com/data')
 # 如果响应状态码不为200，抛出异常
 response.raise_for_status()
 # 输出响应内容
 print(response.text)
except requests.exceptions.HTTPError as http_error:
 print("HTTP错误:", http_error)
except requests.exceptions.ConnectionError as connection_error:
 print("连接错误:", connection_error)
except requests.exceptions.Timeout as timeout_error:
 print("超时错误:", timeout_error)
except requests.exceptions.RequestException as request_exception:
 print("其他错误:", request_exception)

import requests
# 创建会话
session = requests.Session()
# 第一个请求
response1 = session.get('https://api.example.com/login')
# 第二个请求
response2 = session.post('https://api.example.com/data', data={'key': 'value'})
# 输出响应内容
print(response2.text)

import requests
# 发送HTTPS请求，不验证SSL证书
response = requests.get('https://api.example.com/data', verify=False)
# 输出响应内容
print(response.text)

import requests
# 设置代理
proxies = {'http': 'http://user:password@proxy.example.com',
        'https': 'https://user:password@proxy.example.com'}
response = requests.get('https://api.example.com/data', proxies=proxies)
# 输出响应内容
print(response.text)