Spring 消息进入 errorChannel 时将 JMS 与 JTA 回滚集成

Spring Integration JMS with JTA rollback when message goes to errorChannel

我正在使用 Spring 通过 Atomikos 和 JMS 与入站和出站绑定到不同 Webshpere MQ 的 JTA 支持集成。 流程如下:

我的问题是,即使消息在 errorChannel 下游(在已处理的异常情况下并到达错误队列),我也希望提交事务。 据我所知,只有在异常被重新抛出时才会发生回滚(这就是我重新抛出未处理的异常的原因),但在我的情况下,事务会在消息到达 errorChannel 时立即回滚(在它被路由到其他地方之前)。

我做错了什么?

配置如下。

<jms:inbound-channel-adapter id="jms-in"
                             destination="input-queue"
                             connection-factory="inConnectionFactory"
                             channel="edi-inbound"
                             acknowledge="transacted">
    <poller max-messages-per-poll="${process.jms.inbound.poll.messages-per-poll:1}"
            fixed-rate="${process.jms.inbound.poll.rate-millis:60000}"
            >
        <transactional timeout="${process.tx.timeout-sec:60}"/>
    </poller>
</jms:inbound-channel-adapter>
<channel id="edi-inbound"/>

<chain input-channel="edi-inbound" output-channel="edi-transformation-chain">
    <object-to-string-transformer/>
    <service-activator ref="inbound" method="service"/>
</chain>

<!-- edifact transformation flow -->
<chain input-channel="edi-transformation-chain" output-channel="outbound-message-compose">
    <transformer ref="edi2xml-converter"/>
    <transformer ref="xml-mapper"/>
</chain>




<chain input-channel="outbound-message-compose" output-channel="outbound-channel">
    <service-activator ref="outbound-message-composer" />
</chain>

<channel id="outbound-channel">
    <interceptors>
        <beans:ref bean="outbound-interceptor" />
    </interceptors>
</channel>

<recipient-list-router input-channel="outbound-channel">
    <recipient channel="file-outbound"/>
    <recipient channel="queue-outbound"/>
</recipient-list-router>



<channel id="queue-outbound"/>
<jms:outbound-channel-adapter id="jms-out" destination="output-queue" channel="queue-outbound" connection-factory="outConnectionFactory"/>



<channel id="file-outbound"/>
<file:outbound-channel-adapter id="file-outbound"
                                   directory="${output.directory}"
                                   filename-generator-expression="headers['${application.header.key.messageid}'] + '_' + new java.util.Date().getTime() + '.xml'"
                                   delete-source-files="true" />




<!-- notification outbound flow -->
<channel id="errorChannel">
    <interceptors>
        <wire-tap channel="logger"/>
    </interceptors>
</channel>
<logging-channel-adapter id="logger" level="INFO"/>

<exception-type-router input-channel="errorChannel" default-output-channel="unhandled-error-channel">
    <mapping exception-type="aero.aice.apidcm.integration.exception.HandledException" channel="error-notification-channel" />
</exception-type-router>

<recipient-list-router input-channel="error-notification-channel">
    <recipient channel="queue-outbound-error"/>
    <recipient channel="queue-inbound-error"/>
</recipient-list-router>

<chain input-channel="queue-outbound-error">
    <service-activator ref="outbound-error-composer" />
    <jms:outbound-channel-adapter id="jms-out-error"
                                  destination="error-output-queue"
                                  connection-factory="outConnectionFactory"
                                  session-transacted="true"/>
</chain>

<chain input-channel="queue-inbound-error">
    <service-activator ref="error-notif-composer" />
    <jms:outbound-channel-adapter id="jms-in-error"
                                  destination="error-input-queue"
                                  connection-factory="outConnectionFactory"
                                  session-transacted="true"/>
</chain>


<channel id="unhandled-error-channel" />
<service-activator ref="exception-rethrow" input-channel="unhandled-error-channel"/>

为了完整起见,当 tx 在错误通道上回滚时,两个错误队列在任何情况下都会收到消息(就好像出站适配器不会参与事务一样),以及正常流的 tx (当没有错误发生时)完美运行。

没错。

因为你使用Polling Inbound Channel Adapter。它的逻辑是这样的:

AbstractPollingEndpoint.this.taskExecutor.execute(() -> {
  ...
                    if (!Poller.this.pollingTask.call()) {
                        break;
                    }
   ...
                catch (Exception e) {
                    if (e instanceof RuntimeException) {
                        throw (RuntimeException) e;
                    }
                    else {
                        throw new MessageHandlingException(new ErrorMessage(e), e);
                    }
                }
            }
        });

您的 TX 是 pollingTask 代理的一部分,作为 AOP TransactionInterceptor

errorChannelthis.taskExecutorErrorHandler 的一部分。 因此,只有当我们从 pollingTask 抛出异常时,我们才能到达 errorChannel。既然我们那里有 TX,它当然会回调。

我的观点是:Polling Inbound Channel Adapter中的错误处理过程是在 TX 之外完成的。

考虑切换到 <int-jms:message-driven-channel-adapter>