socket编程 - python如何进行socket连接

Question

尝试连接 119.23.124.81:7575

服务器每5秒会返回一个{"type":"ping"}，我尝试用以下代码去连接，但是无法获取到这个{"type":"ping"}:

s = socket(AF_INET, SOCK_STREAM)
# 建立连接:

s.connect(('119.23.124.81', 7575))
while True:
    print(s.recv(1024).decode('utf-8'))

s.close()

代码不会报错，但是也获取到我想要的内容

请问要如何写才能获取到这个{"type":"ping"}

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Answer 1

Saya dapat tahu, ternyata ini adalah protokol websocket yang digunakan, bukan soket biasa

Hanya gunakan perpustakaan websocket sebagai gantinya

from websocket import create_connection


ws = create_connection("ws://42.96.131.185:7575")
print("Sending 'Hello, World'...")
for i in range(10000):
    ws.send(b"Hello, World")
    print("Sent")
print("Reeiving...")
result = ws.recv()
print("Received '%s'" % result)
ws.close()

Answer 2

Rujuk dokumentasi rasmi

# Echo server program
import socket

HOST = ''                 # Symbolic name meaning all available interfaces
PORT = 50007              # Arbitrary non-privileged port
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((HOST, PORT))
s.listen(1)
conn, addr = s.accept()
print 'Connected by', addr
while 1:
    data = conn.recv(1024)
    if not data: break
conn.sendall(data)
conn.close()

dan

import SocketServer

class MyTCPHandler(SocketServer.BaseRequestHandler):
"""
The request handler class for our server.

It is instantiated once per connection to the server, and must
override the handle() method to implement communication to the
client.
"""

    def handle(self):
        # self.request is the TCP socket connected to the client
        self.data = self.request.recv(1024).strip()
        print "{} wrote:".format(self.client_address[0])
        print self.data
        # just send back the same data, but upper-cased
        self.request.sendall(self.data.upper())

if __name__ == "__main__":
    HOST, PORT = "localhost", 9999

    # Create the server, binding to localhost on port 9999
    server = SocketServer.TCPServer((HOST, PORT), MyTCPHandler)

    # Activate the server; this will keep running until you
    # interrupt the program with Ctrl-C
    server.serve_forever()

Answer 3

Oleh kerana data yang anda hantar ialah objek kamus, apabila menghantar data melalui soket, gunakan modul pickle atau json untuk mensirikan data sebelum menghantarnya. Sejajar dengan itu, hujung penerima mesti menggunakan pickle atau json untuk penyahserilan.