1 client, 客户端 code ：
2
3 客户端主要方法, s.send(); s.sendall(); s.recv(); s.connect()
4
5 class Client(object):
6
7 def __init__(self, ip, PortNo=XXX):
8 self.ip = ip
9 self.PortNo = PortNo
10
11 def connect_socket(self):
12 count = 1
13 status = 0
14 while count < 6 and status == 0: # 尝试5次 在 ip:：PortNo 上创建socket 链接.
15 print ("Attempt %s time(s) to open socket port" % count)
16 try:
17 self.soct = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # 定义socket 类型(TCP)
18 except socket.error, e: # socket error 异常处理, 这里把异常catch住,代码可以继续运行. 函数结尾返回一个函数运行结果标志位,供main函数或者调用函数判断.
19 print ("error occur during creating socket: : %s" % e)
20 try:
21 self.soct.connect((self.ip, self.PortNo))
22 status = 1
23 print ("Socket opened success: %s :: %s" % (self.ip, self.PortNo))
24 except socket.error, e: # 常见 socket error 有 目标地址错误,PortNo 被占用, 防火墙 等原因
25 print ("Address or port related error detected during connect to server: : %s" % e)
26 count += 1
27 time.sleep(3)
28 if status == 0:
29 return False
30 return True # 返回函数运行结果
31
32
1 Client 端发消息
2
3 while True:
4 cmd = raw_input("respond")
5 if cmd == "exit":
6 break
7 elif len(cmd) == 0:
8 continue
9 s.send(cmd)
10 date = s.recv(1024)
11 print ("rec:",date)
1 server, 服务端code,
2
3 服务端主要方法, s.recv(); s.send(); s.sendall(); s.bind()； s.close()
4
5 class Server(object):
6 def __init__(self, ip, PortNo=XXX):
7 self.ip = ip
8 self.PortNo = PortNo
9 def run_server(self):
10 self.soct = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # 定义socket 类型(TCP)
11 self.scot.bind((self.ip,self.PortNo))
12 self.soct.listen(1) # socket 监听的数量.
13 conn,addr = self.soct.accept() # 接受 scoket 链接请求.
14 print("Socket has been established with %s :: %s" % (conn,addr))
15 while True:
16 data_r = self.soct.recv(1024) # 从socket 上接受数据
17 if not data_r:
18 break #若已连接的client端断开,退出
19 print("Received %s from socket" % data_r)
20 self.soct.sendall("data_s") # 向socket 发送数据
21 print("Send data %s to socket" % data_s)
22 self.soct.close() # 结束所建立的 socket 方法.
