Python系列(十二)socket编程

Posted by YaPi on December 23, 2018

socket实例

服务端

import socket
import threading

# IPV4
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.bind(('0.0.0.0', 8000))
server.listen()


def handler_sock(sock, addr):
    while True:
        data = sock.recv(1024)
        str = data.decode("utf8")
        print(str)
        if str == 'END':
            break
        re_data = input()
        sock.send(re_data.encode("utf8"))
    sock.close()


# 获取从客户端发送的数据
# 一次获取1k的数据
while True:
    sock, addr = server.accept()
    # 用线程去处理新接受的连接(用户)
    client_thread = threading.Thread(target=handler_sock, args=(sock, addr))
    client_thread.start()

客户端

import socket

# IPV4
client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
client.connect(('127.0.0.1', 8000))
while True:
    re_data = input()
    client.send(re_data.encode("utf8"))
    data = client.recv(1024)
    print(data.decode("utf8"))

使用socket模拟http

import socket
# url解析包
from urllib.parse import urlparse


def get_url(url):
    # 通过socket请求html
    url = urlparse(url)
    host = url.netloc
    path = url.path
    if path == "":
        path = "/"
    # 建立socket连接
    client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    client.connect((host, 80))

    client.send("GET {} HTTP/1.1\r\nHost:{}\r\nConnection:close\r\n\r\n".format(path, host).encode("utf8"))
    # byte类型接受
    data = b""
    while True:
        d = client.recv(1024)
        if d:
            data += d
        else:
            break

    data = data.decode("utf8")
    print(data)
    client.close()


if __name__ == "__main__":
    get_url("http://www.baidu.com")