ubuntu启一个udp server，由一个client访问

郝亚军2026-02-06 13:56

1、server_8078.py代码：

python 复制代码

# udp_server.py
import socket

def start_udp_server(host, port):
    # 创建一个UDP套接字
    server_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    
    # 绑定套接字到地址和端口
    server_socket.bind((host, port))
    print(f"UDP Server listening on {host}:{port}")
    
    while True:
        # 接收数据
        data, addr = server_socket.recvfrom(1024)
        print(f"Received message from {addr}: {data.decode('utf-8')}")
        
        # 发送响应
        response = "Hello from UDP server!"
        server_socket.sendto(response.encode('utf-8'), addr)

if __name__ == "__main__":
    HOST = '192.168.111.128'
    PORT = 8078
    start_udp_server(HOST, PORT)

client_8078.py代码：

python 复制代码

# udp_client.py
import socket

def start_udp_client(host, port):
    # 创建一个UDP套接字
    client_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    
    try:
        # 发送数据
        message = "Hello from UDP client!"
        client_socket.sendto(message.encode('utf-8'), (host, port))
        
        # 接收响应
        data, server = client_socket.recvfrom(1024)
        print(f"Received: {data.decode('utf-8')}")
    finally:
        # 关闭套接字
        client_socket.close()

if __name__ == "__main__":
    HOST = '192.168.111.128'
    PORT = 8078
    start_udp_client(HOST, PORT)

在第1个terminal运行：python3 server_8078.py

在第2个terminal运行：python3 client_8078.py