SpringBoot分布式Netty集群，通过Redis发布/订阅广播

在Spring Boot中使用Netty构建分布式通信框架，并通过Redis的发布/订阅功能实现广播，可以参考以下步骤和代码示例：

1. 引入相关依赖（在pom.xml中）：

<dependencies>
    <!-- Spring Boot Web Starter -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <!-- Netty -->
    <dependency>
        <groupId>io.netty</groupId>
        <artifactId>netty-all</artifactId>
        <version>4.1.69.Final</version>
    </dependency>
    <!-- Redis -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-redis</artifactId>
    </dependency>
</dependencies>

2. 配置Redis和Netty服务器（在application.properties或application.yml中）：

# Redis configuration
spring.redis.host=localhost
spring.redis.port=6379
 
# Netty configuration
netty.server.port=8080

3. 创建Netty服务器：

@Component
public class NettyServer {
    private final RedisTemplate<String, String> redisTemplate;
 
    @Autowired
    public NettyServer(RedisTemplate<String, String> redisTemplate) {
        this.redisTemplate = redisTemplate;
    }
 
    public void run() throws Exception {
        EventLoopGroup bossGroup = new NioEventLoopGroup();
        EventLoopGroup workerGroup = new NioEventLoopGroup();
        try {
            ServerBootstrap b = new ServerBootstrap();
            b.group(bossGroup, workerGroup)
             .channel(NioServerSocketChannel.class)
             .childHandler(new ChannelInitializer<SocketChannel>() {
                 @Override
                 public void initChannel(SocketChannel ch) throws Exception {
                     ch.pipeline().addLast(new StringDecoder());
                     ch.pipeline().addLast(new StringEncoder());
                     ch.pipeline().addLast(new NettyServerHandler());
                 }
             })
             .option(ChannelOption.SO_BACKLOG, 128)
             .childOption(ChannelOption.SO_KEEPALIVE, true);
 
            ChannelFuture f = b.bind(8080).sync();
            f.chan