python-socket模块

Posted 2020-08-24

socket server

#!/usr/bin/env python
# -*- coding:utf-8 -*-

import socket

ip_port = (‘127.0.0.1‘,9999)

sk = socket.socket()
sk.bind(ip_port)
sk.listen(5)

while True:
    print(‘server waiting...‘)
    conn,addr = sk.accept()

    client_data = conn.recv(1024)
    print("recv>",client_data.decode(‘utf-8‘))

    resp = "我叫天南"
    conn.sendall(resp.encode(‘utf-8‘))
    print("send>",resp)

    conn.close()

socket client

#!/usr/bin/env python
# -*- coding:utf-8 -*-
import socket
ip_port = (‘127.0.0.1‘,9999)

sk = socket.socket()
sk.connect(ip_port)

sendstr = "你叫什么名字？"
sk.sendall(sendstr.encode(‘utf-8‘))
print("send>",sendstr)

server_reply = sk.recv(1024)
print("recv>",server_reply.decode(‘utf-8‘))

sk.close()

执行结果

client:
send> 你叫什么名字？
recv> 我叫天南

server:
server waiting...
recv> 你叫什么名字？
send> 我叫天南
server waiting...

 

一个简单的web服务器应用

#!/usr/bin/env python
#coding:utf-8
import socket
 
def handle_request(client):
    buf = client.recv(1024)
    client.send("HTTP/1.1 200 OK\\r\\n\\r\\n".encode(‘utf-8‘))
    client.send("Hello, World".encode(‘utf-8‘))
 
def main():
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    sock.bind((‘localhost‘,8080))
    sock.listen(5)
 
    while True:
        connection, address = sock.accept()
        handle_request(connection)
        connection.close()
 
if __name__ == ‘__main__‘:
  main()

访问http://localhost:8080