[英]Send message to client any moment Netty Io
I have an architecture based on micro services, netty io runs on a spring boot application, when I want to send a message to a client I have to wait for a message from the client to send the reply to the one I want to send. 我有一个基于微服务的体系结构,netty io在spring boot应用程序上运行,当我想向客户端发送消息时,我必须等待客户端的消息才能将答复发送给我要发送的消息。 How could I send a message to the client without waiting for him to communicate with me?
我如何在不等待客户与我沟通的情况下向客户发送消息? I'm lost in this step.
我在这一步迷路了。
You can process like that : 您可以这样处理:
ctx.channel()
) ctx.channel()
在每个通道处理程序上使用该引用) channelInactive
event to remove the reference when the client disconnects channelInactive
事件以在客户端断开连接时删除引用 Instead of waiting for a HelloMessage, you can also catch the channelActive
event but it is fired each time somebody connects to your listened port, even if is not one of your client. 除了等待HelloMessage,还可以捕获
channelActive
事件,但是每次有人连接到您的侦听端口时都会触发该事件,即使它不是您的客户端之一。 That's why I prefer using an "Hello Message" 这就是为什么我更喜欢使用“ Hello Message”
Now, you have a reference on the channel and you can send a message when you want by calling channel.writeAndFlush()
现在,您在通道上有了一个引用,可以通过调用
channel.writeAndFlush()
在需要时发送消息channel.writeAndFlush()
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