python11-作业(给服务器输入指令)

通过给服务器输入执行,服务器执行返回结果

服务端：

import socket
import subprocess

server = socket.socket()
ip_port = ('127.0.0.1', 8001)
server.bind(ip_port)
server.listen(5)
print('服务器启动......')

while True:
    conn, addr = server.accept()
    conn.sendall(bytes('连接服务器成功', encoding='utf-8'))

    while True:
        try:
            recv_byte = conn.recv(1024)
            if not recv_byte:
                raise Exception('连接断开了')
        except Exception as e:
            print(e)
            break
        else:
            recv_str = str(recv_byte, encoding='utf-8')
            flag, command = recv_str.split("|")
            if flag == 'cmd':
                # 如果指令错误不会报错,返回错误提示
                ret = subprocess.getoutput(command)
                ret_bytes = bytes(ret, encoding='utf-8')

                length = len(ret_bytes)
                print(length)
                ret = bytes(str(length),encoding='utf-8')
                conn.sendall(ret)
                ready = conn.recv(1024)
                print(ready)
                conn.sendall(ret_bytes)
        finally:
            pass

客户端

import socket

client = socket.socket()
ip_port = ('127.0.0.1', 8001)
client.connect(ip_port)
print('client start')

recv_bytes = client.recv(1024)
print(str(recv_bytes, encoding='utf-8'))

while True:
    command = input('请输入指令:\n>>>').strip()

    client.sendall(bytes('cmd|%s' % command, encoding='utf-8'))

    total_lenngth = int(str(client.recv(1024), encoding='utf-8'))
    recv_length = 0
    content_bytes = bytes()

    client.sendall(bytes('start accept', encoding='utf-8'))
    while recv_length < total_lenngth:
        recv_bytes = client.recv(1024)
        recv_length += len(recv_bytes)
        content_bytes += recv_bytes
    ret = str(content_bytes, encoding='utf-8')
    print(ret)