在 SpringBoot 中使用 Netty 的思路，偷梁换柱之计

项目中准备用 netty 做些定制化的功能，自然而然用上了 SpringBoot 这套，招不在老管用就好。思路就是不启动 tomcat ，在主线程启动 netty 。

	public static void main(String[] args) {
        StopWatch stopWatch = new StopWatch();
        stopWatch.start("start app...");
        ConfigurableApplicationContext context = SpringApplication.run(NettyServer.class, args);
        //get bean
        SecondHandler handler = context.getBean(SecondHandler.class);
        int port = context.getEnvironment().getProperty("server.port", Integer.class, 9000);
        EventLoopGroup bossGroup = new NioEventLoopGroup(1);
        EventLoopGroup workerGroup = new NioEventLoopGroup(16);
        try {
            ServerBootstrap b = new ServerBootstrap();
            b.group(bossGroup, workerGroup)
                    .channel(NioServerSocketChannel.class)
                    .localAddress(new InetSocketAddress(port))
                    .childHandler(new ChannelInitializer<SocketChannel>() {
                        @Override
                        public void initChannel(SocketChannel ch) {
                            ch.pipeline()
                                    .addLast("codec", new HttpServerCodec())
                                    .addLast("compressor", new HttpContentCompressor())
                                    .addLast("aggregator", new HttpObjectAggregator(65536))
                                    .addLast("handler", handler);
                        }
                    })
                    .childOption(ChannelOption.SO_KEEPALIVE, true);
            ChannelFuture f = b.bind().sync();
            stopWatch.stop();
            log.info("Netty Server started ，Listening on {}, info={}", port, stopWatch.prettyPrint());
            f.channel().closeFuture().sync();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            workerGroup.shutdownGracefully();
            bossGroup.shutdownGracefully();
        }
    }

项目链接