Python编写的客户端给服务器发送指令执行相应的命令并返回结果详解编程语言

闲来无事，用python写个客户端与服务器端应答的程序，主要原理就是客户端通过tcp协议与服务器端通信，客户端给服务器端发送指令，服务器执行指令后把相应的结果返回给客户端，客户端打印结果，代码比较简单，不详细介绍。纯属娱乐。

1.服务器端代码，server_tcp.py

#!/usr/bin/env python 
# -*- coding:utf-8 -*- 
 
# #执行客户端发送过来的命令，并把执行结果返回给客户端 
import socket, traceback, subprocess 
 
host = '' 
port = 51888 
 
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) 
 
s.bind((host, port)) 
s.listen(1) 
 
while 1: 
    try: 
        client_socket, client_addr = s.accept() 
    except Exception, e: 
        traceback.print_exc() 
        continue 
 
    try: 
        print 'From host:', client_socket.getpeername() 
        while 1: 
            command = client_socket.recv(4096) 
            if not len(command): 
                break 
            print client_socket.getpeername()[0] + ':' + str(command) 
 
            # 执行客户端传递过来的命令 
            handler = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE) 
            output = handler.stdout.readlines() 
            if output is None: 
                output = [] 
 
            for one_line in output: 
                client_socket.sendall(one_line) 
                client_socket.sendall("/n") 
 
            client_socket.sendall("ok") 
 
 
    except Exception, e: 
        traceback.print_exc() 
 
    try: 
        client_socket.close() 
    except Exception, e: 
        traceback.print_exc()

2.客户端代码 client_tcp.py

#!/usr/bin/env python 
# -*- coding:utf-8 -*- 
 
# #给server端发送命令 
import socket, sys, traceback 
 
host = '127.0.0.1' 
port = 51888 
 
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 
try: 
    s.connect((host, port)) 
except Exception, e: 
    msg = traceback.format_exc() 
    print '连接错误:', msg 
 
input_command = raw_input('Input command:') 
s.send(input_command) 
 
# 利用shutdown()函数使socket双向数据传输变为单向数据传输 
# 该参数表示了如何关闭socket。具体为：0表示禁止将来读；1表示禁止将来写；2表示禁止将来读和写 
s.shutdown(1) 
print '发送完成.' 
print '收到内容：/n' 
while 1: 
    buff = s.recv(4096) 
    if not len(buff): 
        break 
 
    sys.stdout.write(buff)

3.启动server_tcp.py脚本，开始监听本机51888端口；接着启动client_tcp.py.

(1)客户端内容：

/usr/bin/python2.7 /home/wuguowei/PycharmProjects/xplan_script/test_process/client_tcp.py 
Input command:ls -l 
发送完成. 
收到内容： 
 
总用量 20 
 
-rw-r--r-- 1 root root  744  2月 10 14:44 client_tcp.py 
 
-rw-r--r-- 1 root root  877  2月 10 14:18 my_sub_process.py 
 
-rw-r--r-- 1 root root 1290  2月 10 14:45 server_tcp.py 
 
-rw-r--r-- 1 root root  493  2月 10 10:43 tcpclient.py 
 
-rw-r--r-- 1 root root 1168  2月 10 11:51 tcpserver.py 
 
ok 
Process finished with exit code 0

（2）服务器端信息

/usr/bin/python2.7 /home/wuguowei/PycharmProjects/xplan_script/test_process/server_tcp.py 
From host: ('127.0.0.1', 46993) 
127.0.0.1:ls -l