spring 集成 rabbit-mq json MessagingException
spring integration rabbit-mq json MessagingException
我正在使用 Spring 集成来发送通知，作为一个错误测试用例，我正在发送格式错误的 JSON（地图）并收到 MessagingException，这似乎一直在继续.. 不停下来.. 我必须终止应用程序。
所以想知道如何捕获这个，可能是通过 errorChannel。代码示例会有所帮助。
我的 Spring 集成配置：
<!-- channel to connect to disruption exchange -->
<int-amqp:publish-subscribe-channel id="inputChannel"
connection-factory="connectionFactory"
exchange="notification.exchange"/>
<int:json-to-object-transformer input-channel="inputChannel"
output-channel="notificationChannel"
type="java.util.Map"/>
<int:channel id="notificationChannel">
<int:interceptors>
<int:wire-tap channel="loggingChannel"/>
</int:interceptors>
</int:channel>
<int:logging-channel-adapter id="loggingChannel" log-full-message="true" logger-name="tapInbound" level="INFO"/>
<!-- depending on the deviceType route to either apnsChannel or gcmChannel -->
<int:router ref="notificationTypeRouter" input-channel="notificationChannel"/>
<!-- apple push notification channel-->
<int:channel id="apnsChannel"/>
<!-- service activator to process disruptionNotificationChannel -->
<int:service-activator input-channel="apnsChannel" ref="apnsPushNotificationService" method="pushNotification"/>
<!-- google cloud messaging notification channel-->
<int:channel id="gcmChannel"/>
<!-- service activator to process disruptionNotificationChannel -->
<int:service-activator input-channel="gcmChannel" ref="gcmPushNotificationService" method="pushNotification"/>
<!-- error channel to may be log to file or email or store to db in the future -->
<int:channel id="errorChannel"/>
<int:service-activator input-channel="errorChannel" ref="notificationErrorHandler" method="handleFailedNotification"/>
<!-- Infrastructure -->
<rabbit:connection-factory id="connectionFactory"
host="${spring.rabbitmq.host}"
port="${spring.rabbitmq.port}"
username="${spring.rabbitmq.username}"
password="${spring.rabbitmq.password}"/>
<rabbit:template id="amqpTemplate" connection-factory="connectionFactory"/>
<rabbit:admin connection-factory="connectionFactory"/>
<rabbit:fanout-exchange name="notification.exchange"/>
我还有一个错误处理程序：
public class NotificationErrorHandler {
private final Logger LOG = LoggerFactory.getLogger(NotificationErrorHandler.class);
public void handleFailedNotification(Message<MessageHandlingException> message) {
Map<String, Object> map = (Map) message.getPayload();
Notification notification = Notification.fromMap(map);
saveToBD(notification);
}
private void saveToBD(Notification notification) {
LOG.error("[Notification-Error-Handler] Couldn't Send Push notification: device='{}', type='{}', pushId='{}', message='{}', uid='{}'",
new Object[]{notification.getDevice(),
notification.getDeviceType(),
notification.getDeviceToken(),
notification.getBody(),
notification.getUid()});
}
}
这是例外情况：
Caused by: org.springframework.messaging.MessagingException: Failure occured in AMQP listener while attempting to convert and dispatch Message.; nested exception is org.springframework.integration.transformer.MessageTransformationException: failed to transform message; nested exception is com.fasterxml.jackson.core.JsonParseException: Unexpected character ('}' (code 125)): was expecting double-quote to start field name
at [Source: [B@7a707c2c; line: 7, column: 2]
at org.springframework.integration.amqp.channel.AbstractSubscribableAmqpChannel$DispatchingMessageListener.onMessage(AbstractSubscribableAmqpChannel.java:202)
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:799)
... 10 common frames omitted
Caused by: org.springframework.integration.transformer.MessageTransformationException: failed to transform message; nested exception is com.fasterxml.jackson.core.JsonParseException: Unexpected character ('}' (code 125)): was expecting double-quote to start field name
at [Source: [B@7a707c2c; line: 7, column: 2]
at org.springframework.integration.transformer.AbstractTransformer.transform(AbstractTransformer.java:44)
at org.springframework.integration.transformer.MessageTransformingHandler.handleRequestMessage(MessageTransformingHandler.java:68)
at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleMessageInternal(AbstractReplyProducingMessageHandler.java:99)
at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:78)
at org.springframework.integration.dispatcher.BroadcastingDispatcher.invokeHandler(BroadcastingDispatcher.java:160)
at org.springframework.integration.dispatcher.BroadcastingDispatcher.dispatch(BroadcastingDispatcher.java:142)
at org.springframework.integration.amqp.channel.AbstractSubscribableAmqpChannel$DispatchingMessageListener.onMessage(AbstractSubscribableAmqpChannel.java:181)
... 11 common frames omitted
Caused by: com.fasterxml.jackson.core.JsonParseException: Unexpected character ('}' (code 125)): was expecting double-quote to start field name
at [Source: [B@7a707c2c; line: 7, column: 2]
at com.fasterxml.jackson.core.JsonParser._constructError(JsonParser.java:1419)
at com.fasterxml.jackson.core.base.ParserMinimalBase._reportError(ParserMinimalBase.java:508)
at com.fasterxml.jackson.core.base.ParserMinimalBase._reportUnexpectedChar(ParserMinimalBase.java:437)
希望有人能帮忙。
提前致谢
通用
根据@Gary 的回答所做的更改及其现在的工作：
<!-- Infrastructure -->
<rabbit:connection-factory id="connectionFactory"
host="${spring.rabbitmq.host}"
port="${spring.rabbitmq.port}"
username="${spring.rabbitmq.username}"
password="${spring.rabbitmq.password}"/>
<rabbit:admin connection-factory="connectionFactory"/>
<rabbit:template id="amqpTemplate" connection-factory="connectionFactory"/>
<rabbit:direct-exchange name="notification.direct">
<rabbit:bindings>
<rabbit:binding queue="notification.queue" key="notification.queue"/>
</rabbit:bindings>
</rabbit:direct-exchange>
<rabbit:queue id="notification.queue" name="notification.queue"/>
<int-amqp:inbound-channel-adapter channel="inputChannel"
queue-names="notification.queue"
connection-factory="connectionFactory"
error-channel="errorChannel"/>
<int:json-to-object-transformer input-channel="inputChannel"
output-channel="notificationChannel"
type="java.util.Map"/>
<int:channel id="notificationChannel">
<int:interceptors>
<int:wire-tap channel="loggingChannel"/>
</int:interceptors>
</int:channel>
<int:logging-channel-adapter id="loggingChannel" log-full-message="true" logger-name="tapInbound" level="INFO"/>
<!-- depending on the deviceType route to either apnsChannel or gcmChannel -->
<int:router ref="notificationTypeRouter" input-channel="notificationChannel"/>
<!-- apple push notification channel-->
<int:channel id="apnsChannel"/>
<!-- service activator to process disruptionNotificationChannel -->
<int:service-activator input-channel="apnsChannel" ref="apnsPushNotificationService" method="pushNotification"/>
<!-- google cloud messaging notification channel-->
<int:channel id="gcmChannel"/>
<!-- service activator to process disruptionNotificationChannel -->
<int:service-activator input-channel="gcmChannel" ref="gcmPushNotificationService" method="pushNotification"/>
<!-- no op channel where message is logged for unknown devices -->
<int:channel id="noOpChannel"/>
<!-- service activator to process disruptionNotificationChannel -->
<int:service-activator input-channel="noOpChannel" ref="noOpPushNotificationService" method="pushNotification"/>
<!-- error channel to may be log to file or email or store to db in the future -->
<int:channel id="errorChannel"/>
<int:service-activator input-channel="errorChannel" ref="notificationErrorHandler"/>
为什么要从发布-订阅渠道开始流程？使用 pub/sub 渠道进行消息分发是不正常的。
如果可以改为使用消息驱动的通道适配器，则可以添加错误通道。
您不能将错误频道添加到发布-订阅频道。但是，您可以注入错误处理程序（实现 org.springframework.util.ErrorHandler）并在检测到致命错误时抛出 AmqpRejectAndDontRequeueException。
您还可以在通道中使用 Json MessageConverter，而不是在流下游使用 Json 转换器；在这种情况下，默认错误处理程序将检测到消息转换异常并拒绝消息而不是将其重新排队。
我正在使用 Spring 集成来发送通知，作为一个错误测试用例，我正在发送格式错误的 JSON（地图）并收到 MessagingException，这似乎一直在继续.. 不停下来.. 我必须终止应用程序。
所以想知道如何捕获这个，可能是通过 errorChannel。代码示例会有所帮助。
我的 Spring 集成配置：
<!-- channel to connect to disruption exchange -->
<int-amqp:publish-subscribe-channel id="inputChannel"
connection-factory="connectionFactory"
exchange="notification.exchange"/>
<int:json-to-object-transformer input-channel="inputChannel"
output-channel="notificationChannel"
type="java.util.Map"/>
<int:channel id="notificationChannel">
<int:interceptors>
<int:wire-tap channel="loggingChannel"/>
</int:interceptors>
</int:channel>
<int:logging-channel-adapter id="loggingChannel" log-full-message="true" logger-name="tapInbound" level="INFO"/>
<!-- depending on the deviceType route to either apnsChannel or gcmChannel -->
<int:router ref="notificationTypeRouter" input-channel="notificationChannel"/>
<!-- apple push notification channel-->
<int:channel id="apnsChannel"/>
<!-- service activator to process disruptionNotificationChannel -->
<int:service-activator input-channel="apnsChannel" ref="apnsPushNotificationService" method="pushNotification"/>
<!-- google cloud messaging notification channel-->
<int:channel id="gcmChannel"/>
<!-- service activator to process disruptionNotificationChannel -->
<int:service-activator input-channel="gcmChannel" ref="gcmPushNotificationService" method="pushNotification"/>
<!-- error channel to may be log to file or email or store to db in the future -->
<int:channel id="errorChannel"/>
<int:service-activator input-channel="errorChannel" ref="notificationErrorHandler" method="handleFailedNotification"/>
<!-- Infrastructure -->
<rabbit:connection-factory id="connectionFactory"
host="${spring.rabbitmq.host}"
port="${spring.rabbitmq.port}"
username="${spring.rabbitmq.username}"
password="${spring.rabbitmq.password}"/>
<rabbit:template id="amqpTemplate" connection-factory="connectionFactory"/>
<rabbit:admin connection-factory="connectionFactory"/>
<rabbit:fanout-exchange name="notification.exchange"/>
我还有一个错误处理程序：
public class NotificationErrorHandler {
private final Logger LOG = LoggerFactory.getLogger(NotificationErrorHandler.class);
public void handleFailedNotification(Message<MessageHandlingException> message) {
Map<String, Object> map = (Map) message.getPayload();
Notification notification = Notification.fromMap(map);
saveToBD(notification);
}
private void saveToBD(Notification notification) {
LOG.error("[Notification-Error-Handler] Couldn't Send Push notification: device='{}', type='{}', pushId='{}', message='{}', uid='{}'",
new Object[]{notification.getDevice(),
notification.getDeviceType(),
notification.getDeviceToken(),
notification.getBody(),
notification.getUid()});
}
}
这是例外情况：
Caused by: org.springframework.messaging.MessagingException: Failure occured in AMQP listener while attempting to convert and dispatch Message.; nested exception is org.springframework.integration.transformer.MessageTransformationException: failed to transform message; nested exception is com.fasterxml.jackson.core.JsonParseException: Unexpected character ('}' (code 125)): was expecting double-quote to start field name
at [Source: [B@7a707c2c; line: 7, column: 2]
at org.springframework.integration.amqp.channel.AbstractSubscribableAmqpChannel$DispatchingMessageListener.onMessage(AbstractSubscribableAmqpChannel.java:202)
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:799)
... 10 common frames omitted
Caused by: org.springframework.integration.transformer.MessageTransformationException: failed to transform message; nested exception is com.fasterxml.jackson.core.JsonParseException: Unexpected character ('}' (code 125)): was expecting double-quote to start field name
at [Source: [B@7a707c2c; line: 7, column: 2]
at org.springframework.integration.transformer.AbstractTransformer.transform(AbstractTransformer.java:44)
at org.springframework.integration.transformer.MessageTransformingHandler.handleRequestMessage(MessageTransformingHandler.java:68)
at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleMessageInternal(AbstractReplyProducingMessageHandler.java:99)
at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:78)
at org.springframework.integration.dispatcher.BroadcastingDispatcher.invokeHandler(BroadcastingDispatcher.java:160)
at org.springframework.integration.dispatcher.BroadcastingDispatcher.dispatch(BroadcastingDispatcher.java:142)
at org.springframework.integration.amqp.channel.AbstractSubscribableAmqpChannel$DispatchingMessageListener.onMessage(AbstractSubscribableAmqpChannel.java:181)
... 11 common frames omitted
Caused by: com.fasterxml.jackson.core.JsonParseException: Unexpected character ('}' (code 125)): was expecting double-quote to start field name
at [Source: [B@7a707c2c; line: 7, column: 2]
at com.fasterxml.jackson.core.JsonParser._constructError(JsonParser.java:1419)
at com.fasterxml.jackson.core.base.ParserMinimalBase._reportError(ParserMinimalBase.java:508)
at com.fasterxml.jackson.core.base.ParserMinimalBase._reportUnexpectedChar(ParserMinimalBase.java:437)
希望有人能帮忙。
提前致谢 通用
根据@Gary 的回答所做的更改及其现在的工作：
<!-- Infrastructure -->
<rabbit:connection-factory id="connectionFactory"
host="${spring.rabbitmq.host}"
port="${spring.rabbitmq.port}"
username="${spring.rabbitmq.username}"
password="${spring.rabbitmq.password}"/>
<rabbit:admin connection-factory="connectionFactory"/>
<rabbit:template id="amqpTemplate" connection-factory="connectionFactory"/>
<rabbit:direct-exchange name="notification.direct">
<rabbit:bindings>
<rabbit:binding queue="notification.queue" key="notification.queue"/>
</rabbit:bindings>
</rabbit:direct-exchange>
<rabbit:queue id="notification.queue" name="notification.queue"/>
<int-amqp:inbound-channel-adapter channel="inputChannel"
queue-names="notification.queue"
connection-factory="connectionFactory"
error-channel="errorChannel"/>
<int:json-to-object-transformer input-channel="inputChannel"
output-channel="notificationChannel"
type="java.util.Map"/>
<int:channel id="notificationChannel">
<int:interceptors>
<int:wire-tap channel="loggingChannel"/>
</int:interceptors>
</int:channel>
<int:logging-channel-adapter id="loggingChannel" log-full-message="true" logger-name="tapInbound" level="INFO"/>
<!-- depending on the deviceType route to either apnsChannel or gcmChannel -->
<int:router ref="notificationTypeRouter" input-channel="notificationChannel"/>
<!-- apple push notification channel-->
<int:channel id="apnsChannel"/>
<!-- service activator to process disruptionNotificationChannel -->
<int:service-activator input-channel="apnsChannel" ref="apnsPushNotificationService" method="pushNotification"/>
<!-- google cloud messaging notification channel-->
<int:channel id="gcmChannel"/>
<!-- service activator to process disruptionNotificationChannel -->
<int:service-activator input-channel="gcmChannel" ref="gcmPushNotificationService" method="pushNotification"/>
<!-- no op channel where message is logged for unknown devices -->
<int:channel id="noOpChannel"/>
<!-- service activator to process disruptionNotificationChannel -->
<int:service-activator input-channel="noOpChannel" ref="noOpPushNotificationService" method="pushNotification"/>
<!-- error channel to may be log to file or email or store to db in the future -->
<int:channel id="errorChannel"/>
<int:service-activator input-channel="errorChannel" ref="notificationErrorHandler"/>
为什么要从发布-订阅渠道开始流程？使用 pub/sub 渠道进行消息分发是不正常的。
如果可以改为使用消息驱动的通道适配器，则可以添加错误通道。
您不能将错误频道添加到发布-订阅频道。但是，您可以注入错误处理程序（实现 org.springframework.util.ErrorHandler）并在检测到致命错误时抛出 AmqpRejectAndDontRequeueException。
您还可以在通道中使用 Json MessageConverter，而不是在流下游使用 Json 转换器；在这种情况下，默认错误处理程序将检测到消息转换异常并拒绝消息而不是将其重新排队。