netty案例,netty4.1基础入门篇十《关于ChannelOutboundHandlerAdapter简单使用》源码 https://mp.weixin.qq.com/s?__biz=MzIxMDAwMDAxMw==&mid=2650724887&idx=1&sn=de3a948d945151f78f7ee277e728043e&scene=19#wechat_redirect