Python socket模块方法实现详解
这篇文章主要介绍了Python socket模块方法实现详解,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下
socket ssh (不带防止粘包的方法）
#! /usr/bin/env python
# -*- coding:utf-8 -*-
# Author Ian Ying
# mail: kongqing.ying@yitu-inc.com
import socket
import os
server = socket.socket()
server.bind(('localhost', 6969)) #绑定被监听端口
server.listen(5) #监听端口
while True:
print("我要开始等电话了")
conn, addr = server.accept() # 就是等待的意思
#conn就是客户端连过来的时候，在服务器端为其生成的一个连接实例
print("电话来了%s"% [conn, addr])
while True:
data = conn.recv(1024)
if not data:
print('client is lost.')
break
# res = os.popen(data).read() #popen就是打开命令执行，read就是获取结果
# with open('filename', 'r') as ret: #这两行就 可以用过来传输文件了。
# data = ret.read()
print('receive:',data)
conn.send(data.upper())
server.close()
socket client 模块
#! /usr/bin/env python
# -*- coding:utf-8 -*-
# Author Ian Ying
# mail: kongqing.ying@yitu-inc.com
import socket
client = socket.socket() #声明socket类型，同时生成socket链接对象
client.connect(('localhost',6969)) #localhost就是本机地址
while True:
msg = input('input msg >>:').strip()
if len(msg) == 0: continue #检查msg的信息，防止无输入信息
#client.send(b"Hello, world!") #发送信息
client.send(msg.encode('utf-8'))
data = client.recv(1024) #默认接受1024字节，就是1k
# with open('filename', 'w') as ret: # 这两行就 可以用过来传输文件了。
# ret = data.write()
print(data.decode())
client.close() #关闭端口
防止粘包的socket_ssh.py
#! /usr/bin/env python
# -*- coding:utf-8 -*-
# Author Ian Ying
# mail: kongqing.ying@yitu-inc.com
import socket
import os
server = socket.socket()
server.bind(('localhost', 6969)) #绑定被监听端口
server.listen(5) #监听端口
while True:
print("我要开始等电话了")
conn, addr = server.accept() # 就是等待的意思
#conn就是客户端连过来的时候，在服务器端为其生成的一个连接实例
while True:
data = conn.recv(1024).decode()
print("电话来了%s" % type(data))
# if type(data) is str:
# data = data.strip()
if not data:
print('client is lost.')
break
cmd_res = os.popen(data).read() #popen就是打开命令执行，read就是获取结果
cmd_res_size = str(len(cmd_res.encode("utf-8")))
print("before send",len(cmd_res),"size after encode", cmd_res_size)
if len(cmd_res) == 0:
print("there is no output.")
res_warning = "there is no output."
conn.send(res_warning.encode("utf-8"))
continue
else:
conn.send(cmd_res_size.encode("utf8"))
print(conn.recv(1024).decode()) #通过接收数据的形式来强制发送缓冲区的数据，防止粘包。
# with open('filename', 'r') as ret: #这两行就 可以用过来传输文件了。
# data = ret.read()
#print('receive:',data)
print('receive:', data)
conn.send(cmd_res.encode("utf-8"))
# conn.send(bytes(cmd_res)) #不可行。传输的时候是需要encoding
server.close()
socket_client.py
#! /usr/bin/env python
# -*- coding:utf-8 -*-
# Author Ian Ying
# mail: kongqing.ying@yitu-inc.com
import socket
client = socket.socket() #声明socket类型，同时生成socket链接对象
client.connect(('localhost',6969)) #localhost就是本机地址
while True:
msg = input('input msg >>:').strip()
if len(msg) == 0: continue #检查msg的信息，防止无输入信息
#client.send(b"Hello, world!") #发送信息
client.send(msg.encode('utf-8'))
received_size = client.recv(1024).decode() #用来记录接受的数据大小
print("接收的数据大小", received_size)
received_cont = b''
received_cont_size = 0 # 用来判断接受数据的大小
if received_size != "there is no output." :
client.send("准备好了，可以发送。".encode()) #发送确认信息，以防止粘包
received_size = int(received_size) #数据需要变成int才能进行判断
while received_size != received_cont_size: #判断encode后的长度是否一致。
received_cont_for_test = client.recv(1024)
received_cont_size += int(len(received_cont_for_test))
received_cont = received_cont + received_cont_for_test
print("当前结束后的数据大小为：", received_cont_size)
# print(received_cont_size)
else:
print("数据接收完成，接收的数据大小为：", received_cont_size)
print("接收的内容为：\n",received_cont.decode(),"\n")
else:
print("output:\n", received_size)
# data = client.recv(1024) #默认接受1024字节，就是1k
# with open('filename', 'w') as ret: # 这两行就 可以用过来传输文件了。
# ret = data.write()
# print(data.decode())
# print(str(data))
client.close() #关闭端口
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持【听图阁-专注于Python设计】。
