本文记录使用Python Socket包搭建简易服务器的代码。
概述
平时访问网站底层大多是socket封装的http请求，都是基于tcp-ip协议进行通信的；角色分为服务器端和客户端。
代码
代码语言：javascript复制import socket
def main():
# ipv4 # tcp-ip
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
# 监听本机 8000 端口
sock.bind(('localhost', 8000))
# 最多同时5个链接
sock.listen(5)
print('start listening! ')
while True:
# 接受请求
conn, addr = sock.accept()
# 获取数据
data = conn.recv(1024)
print(data)
# 返回网页显示内容
conn.send(b"HTTP/1.1 200 OKrnContent-Type:text/html; charset=utf-8rnrn")
conn.send("<h2>测试数据</h2>".encode('utf-8'))
# 关闭链接
conn.close()
if __name__ == '__main__':
main()使用
- 运行程序后，在浏览器访问
localhost:8000即可进入代码中的 while 循环内，收到返回并在浏览器显示
- 同时终端收到信息打印出来：
start listening!
b'GET / HTTP/1.1rnHost: localhost:8000rnConnection: keep-alivernCache-Control: max-age=0rnUpgrade-Insecure-Requests: 1rnUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36rnAccept: text/html,application/xhtml xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9rnSec-Fetch-Site: nonernSec-Fetch-Mode: navigaternSec-Fetch-User: ?1rnSec-Fetch-Dest: documentrnAccept-Encoding: gzip, deflate, brrnAccept-Language: zh,en-US;q=0.9,en;q=0.8,zh-TW;q=0.7,zh-CN;q=0.6rnrn'
b'GET /favicon.ico HTTP/1.1rnHost: localhost:8000rnConnection: keep-alivernPragma: no-cachernCache-Control: no-cachernUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36rnAccept: image/avif,image/webp,image/apng,image/*,*/*;q=0.8rnSec-Fetch-Site: same-originrnSec-Fetch-Mode: no-corsrnSec-Fetch-Dest: imagernReferer: http://localhost:8000/rnAccept-Encoding: gzip, deflate, brrnAccept-Language: zh,en-US;q=0.9,en;q=0.8,zh-TW;q=0.7,zh-CN;q=0.6rnrn'
b''
