通过TCP选择JSON的传输

import socket
import json
import struct

server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_socket.bind(('0.0.0.0', 8888))
server_socket.listen(5)

while True:
    client_socket, addr = server_socket.accept()
    # 读取长度前缀
    raw_len = client_socket.recv(4)
    if not raw_len:
        break
    msg_len = struct.unpack('>I', raw_len)[0]
    # 读取实际数据
    data = client_socket.recv(msg_len)
    json_data = json.loads(data.decode('utf-8'))
    print("Received:", json_data)
    client_socket.close()

import socket
import json
import struct

data = {"name": "Alice", "age": 25, "scores": [90, 85, 95]}
json_str = json.dumps(data)
json_bytes = json_str.encode('utf-8')

client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
client_socket.connect(('localhost', 8888))
# 先发送长度前缀
client_socket.send(struct.pack('>I', len(json_bytes)))
# 再发送实际数据
client_socket.send(json_bytes)
client_socket.close()