基于Python的负载均衡器实现与版权音乐的应用

import socket

import threading

# 定义后端服务器列表

backend_servers = [

    ("127.0.0.1", 8081),

    ("127.0.0.1", 8082),

    ("127.0.0.1", 8083)

]

# 轮询索引

current_server_index = 0

def handle_client(client_socket):

    global current_server_index

    backend_server = backend_servers[current_server_index]

    current_server_index = (current_server_index + 1) % len(backend_servers)

    # 创建一个新的套接字并连接到后端服务器

    backend_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

    backend_socket.connect(backend_server)

    # 将客户端请求转发到后端服务器

    while True:

        data = client_socket.recv(4096)

        if not data:

            break

        backend_socket.sendall(data)

        # 接收后端服务器的响应并转发给客户端

        response = backend_socket.recv(4096)

        client_socket.sendall(response)

    # 关闭连接

    backend_socket.close()

    client_socket.close()

def start_load_balancer(host, port):

    server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

    server_socket.bind((host, port))

    server_socket.listen(5)

    print(f"Load balancer listening on {host}:{port}")

    while True:

        client_socket, client_address = server_socket.accept()

        print(f"Accepted connection from {client_address}")

        client_handler = threading.Thread(target=handle_client, args=(client_socket,))

        client_handler.start()

if __name__ == "__main__":

    start_load_balancer("127.0.0.1", 8000)