url截取域名

from urllib.parse import urlparse

url = "https://www.example.com/path/to/resource?query=param"
parsed_url = urlparse(url)
domain = parsed_url.netloc
print(domain)  # 输出: www.example.com

const url = new URL("https://www.example.com/path/to/resource?query=param");
const domain = url.hostname;
console.log(domain);  // 输出: www.example.com

import java.net.URI;
import java.net.URISyntaxException;

public class Main {
    public static void main(String[] args) {
        try {
            URI uri = new URI("https://www.example.com/path/to/resource?query=param");
            String domain = uri.getHost();
            System.out.println(domain);  // 输出: www.example.com
        } catch (URISyntaxException e) {
            e.printStackTrace();
        }
    }
}

from urllib.parse import urlparse, quote

url = "https://www.example.com/path/to/resource?query=param with spaces"
encoded_url = quote(url, safe=':/?&=')
parsed_url = urlparse(encoded_url)
domain = parsed_url.netloc
print(domain)  # 输出: www.example.com