在Spring Boot中实现WebSocket多节点解决方案，通常需要使用支持集群环境的消息代理，如Redis或RabbitMQ，以确保节点间的消息传递和会话管理是同步的。以下是一个使用Spring Boot和WebSocket配合Redis实现多节点解决方案的简化示例：
- 添加依赖到你的
pom.xml：
<dependencies>
<!-- Spring Boot WebSocket Starter -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
</dependency>
<!-- Redis -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<!-- Redis Messaging -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-redis</artifactId>
</dependency>
<!-- Redis for WebSocket -->
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-data-redis</artifactId>
</dependency>
</dependencies>- 配置
application.properties或application.yml以使用Redis作为消息代理：
# Redis settings
spring.redis.host=localhost
spring.redis.port=6379
# Spring Session with Redis
spring.session.store-type=redis- 创建WebSocket配置类：
@Configuration
@EnableWebSocketMessageBroker
public class WebSocketConfig implements WebSocketMessageBrokerConfigurer {
@Override
public void configureMessageBroker(MessageBrokerRegistry config) {
config.enableStompBrokerRelay("/topic")
.setRelayHost("localhost")
.setRelayPort(61613)
.setClientLogin("guest")
.setClientPasscode("guest");
}
@Override
public void registerStompEndpoints(StompEndpointRegistry registry) {
registry.addEndpoint("/ws").withSockJS();
}
}- 创建消息控制器来发送和接收消息：
@Controller
public class WebSocketController {
@MessageMapping("/chat")
@SendTo("/topic/public")
public Message sendMessage(Message message) {
return message;
}
}
public class Message {
private String content;
// Getters and Setters
}确保你的Spring Boot应用程序部署在多个节点上，并且Redis服务器是可共享的。当客户端连接到任何节点时，WebSocket消息代理会将消息路由到正确的节点。这样，你就可以实现一个可靠的WebSocket多节点解决方案。