基于UDP使用Python实现了一个聊天系统。
客户端的代码实现(使用键盘对于数据的读入):
#!/usr/bin/python
# -*- coding: UTF-8 -*-
import socket
server_addr=('127.0.0.1',8080)
s=socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
while True:
data = input('Please enter the message:')
s.sendto(data,server_addr)
print(s.recv(1024))
s.close()
服务器端的代码实现(对于client端的请求进行响应并且将数据保存到数据库中):
#!/usr/bin/python
# -*- coding: UTF-8 -*-
import socket
import sqlite3
server_addr=('127.0.0.1',8080)
s=socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
#connect the database and if not have the 'chat_data.db',while to create database file
conn_db=sqlite3.connect('chat_data.db')
#create a cursor
cursor=conn_db.cursor()
#create table
cursor.execute('create table user1 (ip varchar(100),port int(7),data varchar(255))')
s.bind(server_addr)
print('Bind UDP on 9999')
while True:
data,addr=s.recvfrom(1024)
ip=addr[0]
port=addr[1]
message=data
print('Received from :',addr,data)
s.sendto(b'Hello:'+data,addr)
#insert message to database
cursor.execute("insert into user1(ip,port,data)values('%s',%d,'%s')" % (ip,port,message))
cursor.execute("select * from user1")
values=cursor.fetchall()
print(values)
cursor.close()
conn_db.commit()
conn_db.close()
注:由于作者水平有限,若有问题,请留言,谢谢!