socket编程

服务端

import socket
import sys

# 创建 socket 对象
serversocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 

# 获取本地主机名
host = socket.gethostname()
port = 9999
# 绑定端口号
serversocket.bind((host, port))
# 设置最大连接数，超过后排队
serversocket.listen(5)
while True:
    # 建立客户端连接
    clientsocket,addr = serversocket.accept()      
    print("连接地址: %s" % str(addr))
    msg='收到消息了呀！'+ "\r\n"
    clientsocket.send(msg.encode('utf-8'))
    clientsocket.close()

客户端

import socket
import sys
# 创建 socket 对象
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 
# 获取本地主机名
host = socket.gethostname() 
# 设置端口号
port = 9999
# 连接服务，指定主机和端口
s.connect((host, port))
# 接收小于 1024 字节的数据
msg = s.recv(1024)
s.close()
print (msg.decode('utf-8'))

使用socket访问redis

import socket

host = '10.0.2.110'
port = 6379
buf_size = 1
conn = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
conn.connect((host, port))

cmd = 'SELECT 2\n'.encode('utf-8')
r = conn.sendall(cmd)


cmd = 'PING\n'.encode('utf-8')
conn.sendall(cmd)
while True:
    res = conn.recv(buf_size)
    print(res)
    if not res:
        break
conn.close()