Python网络通信之socket模块（四）基于Tcp/Ip的TCP交互通信serve/client的编写过程

Server_v1:

[root@ChangerLee 模拟Http服务器返回状态]# cat server_test_v1.py

!/bin/env python
#import socket

sk = socket.socket()
ip_port = ('127.0.0.1',9999)
sk.bind(ip_port)
sk.listen(5)

clisock,clieaddr = sk.accept()
clisock.send('hello')
clisock.close()

[root@ChangerLee 模拟Http服务器返回状态]# python server_test_v1.py &
[1] 11057

[root@ChangerLee 模拟Http服务器返回状态]# netstat -antple|grep "9999"
tcp        0      0 127.0.0.1:9999          0.0.0.0:*               LISTEN      0          88903      11057/python

Client_v1

[root@ChangerLee 模拟Http服务器返回状态]# cat client_test_v1.py

#!/bin/env python
import socket

clisock = socket.socket()
ip_port = ('127.0.0.1',9999)

clisock.connect(ip_port)
data = clisock.recv(1024)
print data

[root@ChangerLee 模拟Http服务器返回状态]# python client_test_v1.py
hello

Server_v2:

[root@ChangerLee 模拟Http服务器返回状态]# cat server_test_v2.py

#!/bin/env python
import socket

sk = socket.socket()
ip_port = ('127.0.0.1',9999)
sk.bind(ip_port)
sk.listen(5)

while True:
clisock,clieaddr = sk.accept()
clisock.send('hello')
clisock.close()

[root@ChangerLee 模拟Http服务器返回状态]# python server_test_v2.py

Client_v2

[root@ChangerLee 模拟Http服务器返回状态]# cat client_test_v2.py

#!/bin/env python
import socket

clisock = socket.socket()
ip_port = ('127.0.0.1',9999)

clisock.connect(ip_port)
data = clisock.recv(1024)
print data

[root@ChangerLee 模拟Http服务器返回状态]# python client_test_v2.py
hello
[root@ChangerLee 模拟Http服务器返回状态]# python client_test_v2.py
hello
[root@ChangerLee 模拟Http服务器返回状态]# python client_test_v2.py
hello

Server_v3:

[root@ChangerLee 模拟Http服务器返回状态]# cat server_test_v1.py

#!/bin/env python
import socket
sk = socket.socket()
ip_port = ('127.0.0.1',9999)
sk.bind(ip_port)
sk.listen(5)

while True:
clisock,cliaddr = sk.accept()
print (sk)
print (clisock)
print (cliaddr)
clisock.send('hello')
clisock.close()

[root@ChangerLee 模拟Http服务器返回状态]# python server_test_v3.py
<socket._socketobject object at 0x7f7fe9c533d0>
<socket._socketobject object at 0x7f7fe9c53440>
('127.0.0.1', 43454)

其时sk.accept()返回的是一个元组类型（<socket._socketobject object at 0x7f7fe9c53440>
，('127.0.0.1', 43454)）

Server_v4:

[root@ChangerLee 模拟Http服务器返回状态]# cat server_test_v4.py

#!/bin/env python
#coding=utf-8
import socket
sk = socket.socket()
ip_port = ('127.0.0.1',9999)
sk.bind(ip_port)
sk.listen(5)

while True:
clisock,cliaddr = sk.accept()
clisock.send('hello')
flag = True

while flag:
#不直接用break的原因是在多层循环的中break跳出循环会出现问题
data = clisock.recv(1024)
#接收方法recv也是阻塞的
print ('from client:'+data)
if data == 'exit':
flag = False
clisock.send('sb')

clisock.close()

[root@ChangerLee 模拟Http服务器返回状态]# python server_test_v4.py
from client:hello
from client:exit

直接卡住。。。。。。

Client_v4

[root@ChangerLee 模拟Http服务器返回状态]# cat  client_test_v4.py

#!/bin/env python
import socket

clisock = socket.socket()
ip_port = ('127.0.0.1',9999)

clisock.connect(ip_port)
while True:
data = clisock.recv(1024)
inp = raw_input('client>')
clisock.send(inp)
print ('getinfo:',data)

[root@ChangerLee 模拟Http服务器返回状态]# python  client_test_v4.py
client>hello
('getinfo:', 'hello')
client>exit
('getinfo:', 'sb')
client>exit
('getinfo:', 'sb')
client>exit
Traceback (most recent call last):
File "client_test_v2.py", line 11, in <module>
clisock.send(inp)
socket.error: [Errno 32] Broken pipe

Server_v5:

[root@ChangerLee 模拟Http服务器返回状态]# cat server_test_v5.py

#!/bin/env python
#coding=utf-8
import socket
sk = socket.socket()
ip_port = ('127.0.0.1',9999)
sk.bind(ip_port)
sk.listen(5)

while True:
clisock,cliaddr = sk.accept()
clisock.send('hello')
flag = True

while flag:
data = clisock.recv(1024)
print ('from client:'+data)
if data == 'exit':
flag = False
clisock.send('sb')

clisock.close()

[root@ChangerLee 模拟Http服务器返回状态]# python server_test_v5.py
from client:hello
from client:exit
from client:come again
from client:exit

Client_v5:

[root@ChangerLee 模拟Http服务器返回状态]# cat client_test_v5.py

#!/bin/env python
import socket

clisock = socket.socket()
ip_port = ('127.0.0.1',9999)

clisock.connect(ip_port)
while True:
data = clisock.recv(1024)
inp = raw_input('client>')
clisock.send(inp)
print ('getinfo:',data)
if inp == 'exit':
break

[root@ChangerLee 模拟Http服务器返回状态]# python  client_test_v5.py
client>hello
('getinfo:', 'hello')
client>exit
('getinfo:', 'sb')
[root@ChangerLee 模拟Http服务器返回状态]# python  client_test_v5.py
client>come again
('getinfo:', 'hello')
client>exit
('getinfo:', 'sb')