在集群中配置Spring WebSocket需要以下步骤:
a. 添加依赖:在项目的pom.xml文件中添加Spring WebSocket的依赖。
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
</dependency>
b. 配置WebSocket端点:创建一个类继承自AbstractWebSocketMessageBrokerConfigurer
,并重写registerStompEndpoints()
方法,配置WebSocket的端点。
@Configuration
@EnableWebSocketMessageBroker
public class WebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer {
@Override
public void registerStompEndpoints(StompEndpointRegistry registry) {
registry.addEndpoint("/websocket").withSockJS();
}
}
c. 配置消息代理:在上述类中,重写configureMessageBroker()
方法,配置消息代理。
@Override
public void configureMessageBroker(MessageBrokerRegistry registry) {
registry.enableSimpleBroker("/topic");
registry.setApplicationDestinationPrefixes("/app");
}
d. 创建WebSocket处理器:创建一个类实现WebSocketHandler
接口,处理WebSocket的消息。
public class MyWebSocketHandler implements WebSocketHandler {
@Override
public void afterConnectionEstablished(WebSocketSession session) throws Exception {
// 处理连接建立后的逻辑
}
@Override
public void handleMessage(WebSocketSession session, WebSocketMessage<?> message) throws Exception {
// 处理消息的逻辑
}
@Override
public void handleTransportError(WebSocketSession session, Throwable exception) throws Exception {
// 处理传输错误的逻辑
}
@Override
public void afterConnectionClosed(WebSocketSession session, CloseStatus closeStatus) throws Exception {
// 处理连接关闭后的逻辑
}
@Override
public boolean supportsPartialMessages() {
return false;
}
}
e. 注册WebSocket处理器:在上述配置类中,重写registerWebSocketHandlers()
方法,注册WebSocket处理器。
@Override
public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
registry.addHandler(new MyWebSocketHandler(), "/websocket");
}
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