启用STOMP
基于WebSocket的STOMP协议支持已在spring-messaging和spring-websocket模块中提供。添加这些依赖项后，即可通过WebSocket公开STOMP端点，如以下示例所示：
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Java
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Kotlin
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Xml
@Configuration
@EnableWebSocketMessageBroker
public class WebSocketConfiguration implements WebSocketMessageBrokerConfigurer {
@Override
public void registerStompEndpoints(StompEndpointRegistry registry) {
// /portfolio is the HTTP URL for the endpoint to which a WebSocket (or SockJS)
// client needs to connect for the WebSocket handshake
registry.addEndpoint("/portfolio");
}
@Override
public void configureMessageBroker(MessageBrokerRegistry config) {
// STOMP messages whose destination header begins with /app are routed to
// @MessageMapping methods in @Controller classes
config.setApplicationDestinationPrefixes("/app");
// Use the built-in message broker for subscriptions and broadcasting and
// route messages whose destination header begins with /topic or /queue to the broker
config.enableSimpleBroker("/topic", "/queue");
}
}@Configuration
@EnableWebSocketMessageBroker
class WebSocketConfiguration : WebSocketMessageBrokerConfigurer {
override fun registerStompEndpoints(registry: StompEndpointRegistry) {
// /portfolio is the HTTP URL for the endpoint to which a WebSocket (or SockJS)
// client needs to connect for the WebSocket handshake
registry.addEndpoint("/portfolio")
}
override fun configureMessageBroker(config: MessageBrokerRegistry) {
// STOMP messages whose destination header begins with /app are routed to
// @MessageMapping methods in @Controller classes
config.setApplicationDestinationPrefixes("/app")
// Use the built-in message broker for subscriptions and broadcasting and
// route messages whose destination header begins with /topic or /queue to the broker
config.enableSimpleBroker("/topic", "/queue")
}
}<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:websocket="http://www.springframework.org/schema/websocket"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
https://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/websocket
https://www.springframework.org/schema/websocket/spring-websocket.xsd">
<websocket:message-broker application-destination-prefix="/app">
<websocket:stomp-endpoint path="/portfolio" />
<websocket:simple-broker prefix="/topic, /queue"/>
</websocket:message-broker>
</beans>对于内置的简单代理，/topic 和 /queue 前缀没有任何特殊含义。它们仅仅是一种约定，用于区分发布订阅与点对点消息传递（即多个订阅者与一个消费者）。当你使用外部代理时，请检查代理的STOMP页面，以了解它支持哪种类型的STOMP目标和前缀。 |
若要从浏览器连接，对于STOMP，你可以使用
stomp-js/stompjs，这是维护最活跃的
JavaScript库。
以下示例代码基于此：
const stompClient = new StompJs.Client({
brokerURL: 'ws://domain.com/portfolio',
onConnect: () => {
// ...
}
});或者，如果你通过SockJS连接，可以在服务器端启用
SockJS回退功能（设置
registry.addEndpoint("/portfolio").withSockJS()），并在JavaScript端按照
这些说明进行操作。
请注意，在前面的例子中，stompClient 不需要指定 login 和 passcode 标头。即使指定了，它们也会在服务器端被忽略（或者更确切地说，被覆盖）。有关身份验证的更多信息，请参见 连接到代理 和 身份验证。
有关更多示例代码，请参见：
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使用WebSocket构建交互式Web应用程序 — 入门指南。
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股票投资组合 — 一个示例 应用程序。