服务器端
1 import socket 2 3 4 def send_file_2_client(new_client_socket,client_addr): 5 # 接收信息 6 file_name = new_client_socket.recv(1024).decode("utf-8") 7 8 print("客户%s要下载的文件是：%s" % (str(client_addr), file_name)) 9 10 # 定义发送的内容 11 send_content = None 12 13 # 打开文件 14 try: 15 f = open(file_name,"rb") 16 send_content = f.read() 17 f.close() 18 except Exception as ret: 19 print("没有该文件信息") 20 21 # 不做判断 如果没有该文件会报错：TypeError: a bytes-like object is required, not 'NoneType' 22 if send_content: 23 new_client_socket.send(send_content) 24 25 26 def main(): 27 # 创建套接字 28 tcp_server_socket = socket.socket(socket.AF_INET,socket.SOCK_STREAM) 29 30 # 绑定端口 31 tcp_server_socket.bind(("",7788)) 32 33 # 被动监听 34 tcp_server_socket.listen(128) 35 36 while True: 37 # 接收客户端信息 38 new_client_socket,client_addr = tcp_server_socket.accept() 39 40 # while True: 41 send_file_2_client(new_client_socket,client_addr) 42 43 44 # 关闭 45 new_client_socket.close() 46 # 关闭套接字 47 tcp_server_socket.close()
客户端
import socket def main(): # 创建 tcp_client_socket = socket.socket(socket.AF_INET,socket.SOCK_STREAM) # 连接服务器 # ip和port可以写死 也可以用input() 输入 server_ip = input("请输入服务器IP：") server_port = int(input("请输入端口：")) tcp_client_socket.connect((server_ip,server_port)) # 发送信息 file_name = input("请输入要下载的文件名：") tcp_client_socket.send(file_name.encode("utf-8")) # 接收对方发来的数据 recv_data = tcp_client_socket.recv(1024) print(recv_data) if recv_data: with open("[接收]" + file_name,"wb") as f: f.write(recv_data) # 关闭套接字 tcp_client_socket.close()
