python使用requests库实现轻松发起HTTP请求

> pip install requests

import requests

# mock data url: https://jsonplaceholder.typicode.com/
resp = requests.get("http://jsonplaceholder.typicode.com/posts/3")

if resp.status_code == 200:
    # 获取响应内容（JSON格式）
    data = resp.json()
    print(data)
else:
    print(f"请求失败，状态码：{resp.status_code}")

import requests

# mock data url: https://jsonplaceholder.typicode.com/
param = {
    "userId": 2
}
resp = requests.get("http://jsonplaceholder.typicode.com/posts", params=param)

if resp.status_code == 200:
    # 获取响应内容（JSON格式）
    data = resp.json()
    print(data)
else:
    print(f"请求失败，状态码：{resp.status_code}")

import requests

data = {
    "userId": 11,
    "title": "requests post demo",
    "body": "requests post body"
}

resp = requests.post("http://jsonplaceholder.typicode.com/posts", data=data)

if resp.status_code == 200 or resp.status_code == 201:
    # 获取响应内容（JSON格式）
    data = resp.json()
    print(data)
else:
    print(f"请求失败，状态码：{resp.status_code}")

import requests
import json

# mock data url: https://jsonplaceholder.typicode.com/
data = {
    "userId": 11,
    "title": "requests post demo",
    "body": "requests post body"
}
header = {
    'Content-Type': 'application/json_demo'
}
resp = requests.post("http://jsonplaceholder.typicode.com/posts", data=json.dumps(data), headers=header)

if resp.status_code == 200 or resp.status_code == 201:
    # 获取响应内容（JSON格式）
    data = resp.json()
    print(data)
else:
    print(f"请求失败，状态码：{resp.status_code}")

import requests

# mock data url: https://jsonplaceholder.typicode.com/
cookies = {
    'session_id': '12345',
    'user_token': 'abcdef'
}

# 发送请求，并带上 cookies
resp = requests.get("http://jsonplaceholder.typicode.com/posts/1", cookies=cookies)

# 从响应中获取 cookies
cookies = resp.cookies.get_dict()
print(cookies)

import requests

# 创建一个会话对象
session = requests.Session()

# 发送第一个请求，服务器可能会设置一些 cookies
response = session.get('https://example.com/login')

# 发送第二个请求，这次请求会自动带上之前设置的 cookies
response = session.get('https://example.com/profile')

# 你可以检查响应中的 cookies
print(session.cookies.get_dict())

import requests

try:
    response = requests.get('https://api.example.com/data')
    response.raise_for_status()  # 如果响应状态码不是 200，则引发 HTTPError 异常
    data = response.json()
    print(data)
except requests.exceptions.HTTPError as errh:
    print(f"HTTP 错误：{errh}")
except requests.exceptions.ConnectionError as errc:
    print(f"连接错误：{errc}")
except requests.exceptions.Timeout as errt:
    print(f"请求超时：{errt}")
except requests.exceptions.RequestException as err:
    print(f"请求错误：{err}")

import http
import logging
import requests

# 配置logging
logging.basicConfig(level=logging.DEBUG)
logging.getLogger('requests').setLevel(logging.DEBUG)
http.client.HTTPConnection.debuglevel = 1

# mock data url: https://jsonplaceholder.typicode.com/
resp = requests.get("http://jsonplaceholder.typicode.com/posts/3")

if resp.status_code == 200:
    # 获取响应内容（JSON格式）
    data = resp.json()
    print(data)
else:
    print(f"请求失败，状态码：{resp.status_code}")