Python Socketマルチスレッド合併の原理と実現


1.SocketServerモジュールで作成したTCPサーバ端コード
Socketserverの原理図

サービス:

import SocketServer      #  SocketServer,          
 
class MySockServer(SocketServer.BaseRequestHandler):  #     
 
  def handle(self):   #handle(self)         ,        
    print 'Got a new connection from', self.client_address
    while True:
      data = self.request.recv(1024)  #    self           
      if not data:break
      print 'recv:', data
 
      self.request.send(data.upper())  #    self           
 
if __name__ == '__main__':  #           ,        
  HOST = ''       #         (  IP     ),        
  PORT = 50007     #Server        
  s = SocketServer.ThreadingTCPServer((HOST, PORT), MySockServer)
               #  SocketServer          
  s.serve_forever()   #          
クライアント:

import socket
 
HOST = '192.168.1.13'
PORT = 50007
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((HOST, PORT))
 
while True:
  user_input = raw_input('msg to send:').strip()
  s.sendall(user_input)
  data = s.recv(1024)
  print 'Received', repr(data)
 
s.close()
 2.Python SocketserverによるFTPプログラム
サービス:

import socketserver
import struct
import json
import os
class FtpServer(socketserver.BaseRequestHandler):
  coding='utf-8'
  server_dir='file_upload'
  max_packet_size=1024
  BASE_DIR=os.path.dirname(os.path.abspath(__file__))
  def handle(self):
    print(self.request)
    while True:
      data=self.request.recv(4)
      data_len=struct.unpack('i',data)[0]
      head_json=self.request.recv(data_len).decode(self.coding)
      head_dic=json.loads(head_json)
      # print(head_dic)
      cmd=head_dic['cmd']
      if hasattr(self,cmd):
        func=getattr(self,cmd)
        func(head_dic)
  def put(self,args):
    file_path = os.path.normpath(os.path.join(
      self.BASE_DIR,
      self.server_dir,
      args['filename']
    ))

    filesize = args['filesize']
    recv_size = 0
    print('----->', file_path)
    with open(file_path, 'wb') as f:
      while recv_size < filesize:
        recv_data = self.request.recv(self.max_packet_size)
        f.write(recv_data)
        recv_size += len(recv_data)
        print('recvsize:%s filesize:%s' % (recv_size, filesize))


ftpserver=socketserver.ThreadingTCPServer(('127.0.0.1',8080),FtpServer)
ftpserver.serve_forever()
クライアント:

import socket
import struct
import json
import os



class MYTCPClient:
  address_family = socket.AF_INET

  socket_type = socket.SOCK_STREAM

  allow_reuse_address = False

  max_packet_size = 8192

  coding='utf-8'

  request_queue_size = 5

  def __init__(self, server_address, connect=True):
    self.server_address=server_address
    self.socket = socket.socket(self.address_family,
                  self.socket_type)
    if connect:
      try:
        self.client_connect()
      except:
        self.client_close()
        raise

  def client_connect(self):
    self.socket.connect(self.server_address)

  def client_close(self):
    self.socket.close()

  def run(self):
    while True:
      inp=input(">>: ").strip()
      if not inp:continue
      l=inp.split()
      cmd=l[0]
      if hasattr(self,cmd):
        func=getattr(self,cmd)
        func(l)


  def put(self,args):
    cmd=args[0]
    filename=args[1]
    if not os.path.isfile(filename):
      print('file:%s is not exists' %filename)
      return
    else:
      filesize=os.path.getsize(filename)

    head_dic={'cmd':cmd,'filename':os.path.basename(filename),'filesize':filesize}
    print(head_dic)
    head_json=json.dumps(head_dic)
    head_json_bytes=bytes(head_json,encoding=self.coding)

    head_struct=struct.pack('i',len(head_json_bytes))
    self.socket.send(head_struct)
    self.socket.send(head_json_bytes)
    send_size=0
    with open(filename,'rb') as f:
      for line in f:
        self.socket.send(line)
        send_size+=len(line)
        print(send_size)
      else:
        print('upload successful')




client=MYTCPClient(('127.0.0.1',8080))

client.run()
以上がPython Socketマルチスレッドの合併原理と実現の詳細です。Python Socketマルチスレッドの合併に関する資料は他の関連記事に注目してください。