Python+Requests simulates sending GET requests

Simulate sending a GET request

Precondition: import requests library

1. Send a get request without parameters

code show as below:

Take Baidu homepage as an example

import requests 

# Send get request 
response = requests.get(url="http://www.baidu.com") 
print(response.content.decode("utf-8")) # Output content in utf-8 encoding

2. Send a get request with parameters

There are several ways to send a get request with parameters

Method 1: The parameters are in the URL

code show as below:

Take Baidu homepage as an example

import requests 

# Send get request with parameters 
# Method 1: Parameters in URL 
# http protocol, www.baidu.com host number, /s request address, wd=cat parameter 
host = "http://www.baidu.com /s?wd=cat" 
# Because the Baidu server will check the header information, you need to add the request header 
headers = {'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML , like Gecko) Chrome/96.0.4664.45 Safari/537.36'} 
response = requests.get(url=host,headers=headers) 
print(response.content.decode("utf-8"))

Method 2: The parameters are in the dictionary

code show as below:

Take Baidu homepage as an example

import requests 

# Method 2: The parameters are in the dictionary 
host = "http://www.baidu.com/s" 
headers = {'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.45 Safari/537.36'} 
data = {'wd':'Leopard'} # parameters in the dictionary 
response = requests.get(url=host,headers=headers,params=data) 
print(response. content. decode('utf-8'))

Get the basic information of the response data

code show as below:

Take Baidu homepage as an example

import requests 

# Send a get request 
response = requests.get(url="http://www.baidu.com") 
# Get the basic information of the response 
print("Status code:", response.status_code) 
print("Request URL: ",response.url ) 
print("Header information:", response.headers) 
print("Cookie information:", response.cookies) 
print("Byte information:",response.content) 
print("Text information : ",response.text) 
print("Encoding format:",response.encoding)

Encapsulate get request

Code example:

# 封装get请求
def send_get(url):
    response = requests.get(url=url)
    return response

print(send_get("https://www.jd.com/").content.decode("utf-8"))

Encapsulate the main method

Code example:

# 封装main方法
def run_main(method,url,data=None,json_info=None):
    response = None
    if method == "GET":
        response = send_get(url,data)
    elif method == "POST":
        response = send_post(url,data,json_info)
    else:
        print("参数错误")
        response = None
    return response

print(run_main("GET","https://www.jd.com/").content.decode("utf-8"))

Encapsulation test class

Code example:

# 将写好的get、post、run_mian方法做成类
import requests
class run_test:
    session_obj = requests.session()
    def __init__(self,method,url,params=None,data=None,headers=None):
        self.method = method
        self.url = url
        self.params = params
        self.data = data
        self.headers = headers

    def send_get(self):
        res = run_test.session_obj.get(url=self.url,params=self.params,headers=self.headers)
        return res
    def send_post(self):
        res = run_test.session_obj.post(url=self.url,params=self.params,
                                        data=self.data,headers=self.headers)
        return res

    def run_main(self):
        if self.method == "GET":
            res = self.send_get()
        elif self.method == "POST":
            res = self.send_post()
        else:
            print("请求方式错误，请检查！")
            res = None
        return res


if __name__ == "__main__":
    method = "GET"
    url = "https://www.jd.com"
    headers = {"User-Agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36"}

    test_obj = run_test(method=method,url=url,headers=headers)
    response = test_obj.run_main()
    print(response.content.decode("utf-8"))

Practical case

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