@Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        infoLog("Connection channel active: {}", RemotingUtil.parseRemoteAddress(ctx.channel()));
        super.channelActive(ctx);
    }
@see io.netty.channel.ChannelInboundHandlerAdapter#channelRegistered(io.netty.channel.ChannelHandlerContext)
src/main/java/com/alipay/remoting/ConnectionEventHandler.java