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对于最新的稳定版本,请使用 Spring Framework 7.0.6! |
消息顺序
来自代理的消息被发布到 clientOutboundChannel,从那里它们被写入WebSocket会话。由于该通道由 ThreadPoolExecutor 支持,消息会在不同的线程中处理,客户端接收到的结果顺序可能与发布的顺序不完全一致。
要启用有序发布,请按如下方式设置 setPreservePublishOrder 标志:
-
Java
-
Kotlin
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Xml
@Configuration
@EnableWebSocketMessageBroker
public class PublishOrderWebSocketConfiguration implements WebSocketMessageBrokerConfigurer {
@Override
public void configureMessageBroker(MessageBrokerRegistry registry) {
// ...
registry.setPreservePublishOrder(true);
}
}
@Configuration
@EnableWebSocketMessageBroker
class PublishOrderWebSocketConfiguration : WebSocketMessageBrokerConfigurer {
override fun configureMessageBroker(registry: MessageBrokerRegistry) {
// ...
registry.setPreservePublishOrder(true)
}
}
<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 preserve-publish-order="true">
<!-- ... -->
</websocket:message-broker>
</beans>
当设置该标志时,同一客户端会话中的消息将按顺序依次发布到
clientOutboundChannel,从而保证发布的顺序。
请注意,这会带来一定的性能开销,因此只有在需要时才应启用它。
同样的情况也适用于来自客户端的消息,这些消息被发送到 clientInboundChannel,
然后根据其目标前缀进行处理。由于该通道由一个 ThreadPoolExecutor 支持,消息将在不同的线程中被处理,
因此处理的最终顺序可能与接收时的确切顺序不一致。
要启用有序接收,请如下设置标志setPreserveReceiveOrder:
-
Java
-
Kotlin
@Configuration
@EnableWebSocketMessageBroker
public class ReceiveOrderWebSocketConfiguration implements WebSocketMessageBrokerConfigurer {
@Override
public void registerStompEndpoints(StompEndpointRegistry registry) {
registry.setPreserveReceiveOrder(true);
}
}
@Configuration
@EnableWebSocketMessageBroker
class ReceiveOrderWebSocketConfiguration : WebSocketMessageBrokerConfigurer {
override fun registerStompEndpoints(registry: StompEndpointRegistry) {
registry.setPreserveReceiveOrder(true)
}
}