Question

嘿，所以我想检测昵称是否已经在昵称列表中。如果它已经在那里，向客户端发送一条消息，以便它生成一个新的昵称。问题是我相信服务器没有发送消息。

服务器代码：

try:
            client.send("--%||NICK||%--".encode('utf-8'))
 
            nickname = client.recv(1024).decode('utf-8')
            #Check if the same user is connected.
 
            if not nickname in nicknames:
                print('User is not in nicknames')
 
                print(f'[Server] {nickname} has connected to the server')
 
                #This line doesn't make anything yet, still here to remind me to redo the broadcast func.
                broadcast(f'[Server] {nickname} joined the room!\n'.encode('utf-8'))
                
                nicknames.append(nickname)
 
                thread = threading.Thread(target = handle, args=(client,))
                thread.start()
 
            else:
                print('User is already on nicknames')
 
                #Client will generate a new discrim and will tell the user to retry connecting.
 
                print('[Server] Sending user ALREADYONLINE message.')
                try:
                    client.send('--%||ALREADYONLINE||%--'.encode('utf-8'))
                
                except Exception as e:
                    print('An error occured sending ALREADYONLINE:')
                    print(e)
 
                #Get index for client and nickname
                index = clients.index(client)
                nickname = nicknames[index]
 
                print(f'[Server] {nicknames[clients.index(client)]} disconnected from the server.')
                
                #Remove client object and nickname from lists.
                clients.remove(client)
 
                #Close connection on client

客户端代码：

def receive(self):
        try:
            message = self.sock.recv(1024).decode('utf-8')
 
            if message == '--%||NICK||%--':
                print('--%||NICK||%--')
                self.sock.send(settings.get_setting(
                    'nickname').encode('utf-8'))
 
            elif message == '--%||ALREADYONLINE||%--':
                print('--%||ALREADYONLINE||%--')
                messagebox.showerror(
                    title='Nickname Error', message=f"There is already an user connected with the nickname: \"{settings.get_setting('nickname')}\". \n We've changed your last 4 numbers to allow your connection to the server.")
                self.sock.close()
                
            else:
                print('Message is not nickname')
 
        except Exception as e:
            print(e)

客户端输出：

--%||NICK||%--

服务器输出：

[Server] server_data folder exists.
Server started
[Server] Connected with ('ip', 'address')
User is already on nicknames
[Server] Sending user ALREADYONLINE message.
[Server] MrFellah el dev#1927 disconnected from the server.

我已尝试更改消息发送的字符串，打印任何错误，但似乎仍然没有收到消息。但是客户端按预期关闭了连接。

另外，抱歉我的代码杂乱无章:)

Answer 1

编辑：我解决了，我在客户端函数上遗漏了一个 while True 循环。

Python 服务器未发送数据/客户端未接收

1 个答案: