springcloud使用websocket详细步骤以及代码

使用Spring Cloud实现WebSocket需要以下步骤：

1.添加依赖：在pom.xml文件中添加以下依赖

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-websocket</artifactId>
</dependency>

2.创建WebSocket配置类：创建一个配置类，并添加@EnableWebSocket注解，表示启用WebSocket。

@Configuration
@EnableWebSocket
public class WebSocketConfig implements WebSocketConfigurer {

    @Override
    public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
        registry.addHandler(new MyWebSocketHandler(), "/myWebSocket").setAllowedOrigins("*");
    }
}

3.创建WebSocket处理类：创建一个类实现WebSocketHandler接口，并实现其中的方法。

@Component
public class MyWebSocketHandler implements WebSocketHandler {

    private static final Logger logger = LoggerFactory.getLogger(MyWebSocketHandler.class);

    @Override
    public void afterConnectionEstablished(WebSocketSession session) throws Exception {
        logger.info("连接建立成功");
    }

    @Override
    public void handleMessage(WebSocketSession session, WebSocketMessage<?> message) throws Exception {
        logger.info("收到消息：" + message.getPayload());
        session.sendMessage(new TextMessage("已收到消息：" + message.getPayload()));
    }

    @Override
    public void handleTransportError(WebSocketSession session, Throwable exception) throws Exception {
        logger.error("传输错误", exception);
    }

    @Override
    public void afterConnectionClosed(WebSocketSession session, CloseStatus closeStatus) throws Exception {
        logger.info("连接关闭");
    }

    @Override
    public boolean supportsPartialMessages() {
        return false;
    }
}

4.在页面中添加WebSocket连接：在页面中使用JavaScript代码建立WebSocket连接。

var socket = new WebSocket("ws://localhost:8080/myWebSocket");

socket.onopen = function(event) {
    console.log("连接建立成功");
};

socket.onmessage = function(event) {
    console.log("收到消息：" + event.data);
};

socket.onclose = function(event) {
    console.log("连接关闭");
};

socket.onerror = function(event) {
    console.error("连接错误");
};

这些就是使用Spring Cloud实现WebSocket的详细步骤和代码。