How to specify the use of domestic proxy IP

Hello, everyone! Today I'm here to talk to you about how to specify the use of domestic proxy IP. for some need to crawl domestic website data or need to access domestic specific resources for friends, specify the use of domestic proxy IP is very important. So, let me explain in detail!

What is Proxy IP

First of all, let's understand what proxy IP is. proxy IP is like a middleman, your request is first sent to the proxy server, then the proxy server sends the request to the target server, and the response returned by the proxy server is then passed to you through the proxy IP. By using Proxy IP, you can hide your real IP address and at the same time get the IP address of the location of the proxy server to fulfill some special needs.

Get available domestic proxy IPs

To specify the use of domestic proxy IPs, first we need to get the available domestic proxy IPs. here is a simple way to get them by crawling some proxy IP sites.

First, we need to use Python's requests library to send a request to get the content of the page. The code example is as follows:

import requests

url = 'http://www.example.com' # URL of proxy IP site
response = requests.get(url)
content = response.text

Then, we can use regular expressions or BeautifulSoup to extract the proxy IP information in the web page. Here is an example of using a regular expression with the following code sample:

import re

pattern = r'd+.d+.d+.d+.d+:d+' Regular expression for # IP addresses
proxy_ips = re.findall(pattern, content)

Next, we need to verify the availability of these proxy IPs. We can save these verified available proxy IPs for future use. The code example is as follows:

def check_proxy_ip(proxy_ip):
proxies = {

'https': 'https://' + proxy_ip,
}
try.
response = requests.get('http://www.example.com', proxies=proxies, timeout=5)
if response.status_code == 200: if response.status_code == 200: if response.status_code == 200
return True
else: return False
return False
except: return False
return False

valid_proxy_ips = []
for proxy_ip in proxy_ips: if check_proxy_ip(proxy_ip)
if check_proxy_ip(proxy_ip): valid_proxy_ips.append(proxy_ip).
valid_proxy_ips.append(proxy_ip)

print(valid_proxy_ips)

Specify the use of domestic proxy IP

Now that we've got the available domestic proxy IPs, the next step is to specify their use. We can do this using Python's requests library.

First, import the requests library and the random library, the random library is used to randomly select a proxy IP. the code example is as follows:

import requests
import random

# Then, we need to modify the proxy parameters of requests before sending the request. The code example is as follows:
proxy = random.choice(valid_proxy_ips) # Randomly choose a proxy IP
proxies = {

'https': 'https://' + proxy,
}

# Next, we can use this proxy IP to send requests. The code example is as follows:
url = 'http://www.example.com' # URL of the target website
response = requests.get(url, proxies=proxies) # Send the request using the proxy IP
content = response.text # Processing the content of the response

Through the above operation, we have successfully specified the use of domestic proxy IP, and can smoothly access domestic specific resources or crawl domestic website data.