菜鸟学堂 -【Python Socket 】

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#python #socket #android #networking #stream #server

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本文提供了一个使用 Python 的 socket 库进行网络通信的示例，包括服务器和客户端代码。服务器监听特定端口并根据接收到的数据返回不同的响应。

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Python 3.2.2(default, Sep 4 2011, 09:51:08) [MSC v.1500 32 bit (Intel)] on win
32

Type "help", "copyright", "credits" or "license" for more information.

一：官方文档：

http://docs.python.org/py3k/library/socket.html

`socket` — Low-level networking interface

二：example

Server start:

F:\workspace_android\test\com\nagat\socket>Server.py
listen:...............
host: localhost ,post: 12345
wait.................
Connected by ('127.0.0.1', 50710)
其他数据：fs
Connected by ('127.0.0.1', 50711)
数据:hi

Client:

F:\workspace_android\test\com\nagat\socket>Client.py fs
from server to client：其他数据：fs

F:\workspace_android\test\com\nagat\socket>Client.py hi
from server to client：你好，世界

三：example code

server：

import socket

HOST = 'localhost'                 # Symbolic name meaning all available interfaces
PORT = 12345              # Arbitrary non-privileged port
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((HOST, PORT))
s.listen(1)
print("listen:............... ")
print("host:",HOST,",post:",PORT)
print("wait.................")
while 1:
    conn, addr = s.accept()
    print ('Connected by', addr)
    while 1:
        data = conn.recv(1024)
#        print(repr(data))
#        print(str(data,"utf-8"))
        if not data: break
        
        if  data == bytes("hi","utf-8"):
            print("数据:"+str(data,"utf-8"))
            conn.sendall(bytes("你好，世界","utf-8"))
        else :
            print("其他数据："+str(data,"utf-8"))
            conn.sendall(bytes("其他数据："+str(data,"utf-8"),"utf-8"))
    conn.close()

Client：

import socket,sys
#print(sys.argv)
#print(sys.argv[1])

HOST = 'localhost'    # The remote host
PORT = 12345              # The same port as used by the server

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

s.connect((HOST, PORT))

s.sendall(bytes(sys.argv[1],"utf-8"))

data = s.recv(1024)

s.close()

print('from server to client：', str(data,"utf-8"))

四：除了字符串还能发送别的不？