챗봇엔진 서버.ipynb

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  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "188e3239",
   "metadata": {},
   "outputs": [],
   "source": [
    "import socket  # 파이썬에서 제공하는 저수준 네트워킹 인터페이스 API\n",
    "\n",
    "class BotServer:\n",
    "    # ① 생성자: 포트번호, 동시연결 클라이언트수를 멤버변수로 저장\n",
    "    def __init__(self, srv_port, listen_num):\n",
    "        self.port = srv_port\n",
    "        self.listen = listen_num\n",
    "        self.mySock = None\n",
    "\n",
    "    # ② TCP/IP socket 생성\n",
    "    # 지정한 서버포트(port)로 지정한 연결수(listen) 만큼 클라이언트 연결을 수락하도록 합니다\n",
    "    def create_sock(self):\n",
    "        self.mySock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)\n",
    "        self.mySock.bind((\"0.0.0.0\", int(self.port)))  # 0.0.0.0 : 로컬시스템의 모든 IPv4 주소\n",
    "        self.mySock.listen(int(self.listen))\n",
    "        return self.mySock\n",
    "\n",
    "    # ③ client 대기\n",
    "    # 챗봇 클라이언트 연결을 대기하고 있다가 연결을 수락하는 메소드\n",
    "    # 서버 소켓은 우리가 설정한 주소와 통신에 바인드되어 클라이언트 연결을 리스닝(listening) 하고 있게 된다\n",
    "    # 클라이언트가 연결을 요청하는 즉시 accept() 함수는 클라이언트와 통신할  있는\n",
    "    # 클라이언트 소켓 객체를 리턴하게 됩니다.  \n",
    "    # 이때 리턴값은!  (conn, address) 튜플입니다\n",
    "    #   conn : 연결된 챗봇 클라이언트의 데이터를 '송수신' 할수 있는 클라이언트 소켓입니다\n",
    "    #   address : 연결된 챗봇 클라이언트 소켓의 바인드된 주소입니다\n",
    "    def ready_for_client(self):\n",
    "        return self.mySock.accept()\n",
    "\n",
    "\n",
    "    # ④ 현재 생성된 서버 socket 반환\n",
    "    def get_sock(self):\n",
    "        return self.mySock\n",
    "    "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "962f5181",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "질문 : 바지 추천해줘\n",
      "----------------------------------------\n"
     ]
    },
    {
     "ename": "ConnectionRefusedError",
     "evalue": "[WinError 10061] 대상 컴퓨터에서 연결을 거부했으므로 연결하지 못했습니다",
     "output_type": "error",
     "traceback": [
      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[1;31mConnectionRefusedError\u001b[0m                    Traceback (most recent call last)",
      "Input \u001b[1;32mIn [2]\u001b[0m, in \u001b[0;36m<cell line: 10>\u001b[1;34m()\u001b[0m\n\u001b[0;32m     15\u001b[0m \u001b[38;5;66;03m# 챗봇 엔진 서버 연결 (소켓연결)\u001b[39;00m\n\u001b[0;32m     16\u001b[0m mySocket \u001b[38;5;241m=\u001b[39m socket\u001b[38;5;241m.\u001b[39msocket()\n\u001b[1;32m---> 17\u001b[0m \u001b[43mmySocket\u001b[49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43mconnect\u001b[49m\u001b[43m(\u001b[49m\u001b[43m(\u001b[49m\u001b[43mhost\u001b[49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[43mport\u001b[49m\u001b[43m)\u001b[49m\u001b[43m)\u001b[49m  \u001b[38;5;66;03m# 챗봇 엔진 서버 연결 시도.  실패하면 ConnectionRefusedError \u001b[39;00m\n\u001b[0;32m     18\u001b[0m \u001b[38;5;28mprint\u001b[39m(\u001b[38;5;124m'\u001b[39m\u001b[38;5;124m1번구간\u001b[39m\u001b[38;5;124m'\u001b[39m)\n\u001b[0;32m     19\u001b[0m \u001b[38;5;66;03m# 챗봇 엔진 질의 요청\u001b[39;00m\n",
      "\u001b[1;31mConnectionRefusedError\u001b[0m: [WinError 10061] 대상 컴퓨터에서 연결을 거부했으므로 연결하지 못했습니다"
     ]
    }
   ],
   "source": [
    "import socket\n",
    "import json\n",
    "\n",
    "# ① 챗봇 엔진 서버 접속 정보\n",
    "host = \"127.0.0.1\"  # 챗봇 엔진 서버 IP 주소, IPv4 에선 localhost (자신) 의 주소다\n",
    "port = 5050  # 챗봇 엔진 서버 통신 포트\n",
    "\n",
    "# 클라이언트 프로그램 시작\n",
    "while True:\n",
    "    query = input(\"질문 : \")  # 질의 입력\n",
    "    if(query == \"exit\"):\n",
    "        exit(0)\n",
    "    print('-' * 40)\n",
    "    \n",
    "    # 챗봇 엔진 서버 연결 (소켓연결)\n",
    "    mySocket = socket.socket()\n",
    "    mySocket.connect((host, port))  # 챗봇 엔진 서버 연결 시도.  실패하면 ConnectionRefusedError \n",
    "    print('1번구간')\n",
    "    # 챗봇 엔진 질의 요청\n",
    "    json_data = {\n",
    "        \"Query\": query,\n",
    "        \"BotType\": \"MyService\"\n",
    "    }\n",
    "    print(query)\n",
    "    print(json_data)\n",
    "    message = json.dumps(json_data)  # json 텍스트로 변경하여\n",
    "    print(message.encode())\n",
    "    print(mySocket.recv(2048).decode())\n",
    "    mySocket.send(message.encode())  # 전송!\n",
    "    \n",
    "    print('2번구간')\n",
    "\n",
    "    # 챗봇 엔진으로부터 답변 받아 출력\n",
    "    data = mySocket.recv(2048).decode()   # 서버로부터 수신 (수신 할때까지 대기, 블로킹)\n",
    "    ret_data = json.loads(data)           # json -> 파이썬 객체로 변환\n",
    "    \n",
    "    # 수신후 답변 출력\n",
    "    print(\"답변 : \")\n",
    "    print(ret_data['Answer'])\n",
    "    print(ret_data)\n",
    "    print(type(ret_data))\n",
    "    print(\"\\n\")    \n",
    "    \n",
    "    \n",
    "    # 챗봇 엔진 서버 연결 소켓 닫기\n",
    "    mySocket.close()\n"
   ]
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