Question

My Spring Integration流程在xml中定义如下（注意我已删除了打开/关闭字符，因为xml在我的问题中没有正确显示）：

<int-amqp:channel id="actionInstructionTransformed" message-driven="false"/>

<int-xml:unmarshalling-transformer
        input-channel="actionInstructionXmlValid" output-channel="actionInstructionTransformed"
        unmarshaller="actionInstructionMarshaller" />

我有一个定义的轮询器：

<int:poller id="customPoller" default="true" trigger="customPeriodicTrigger" task-executor="customTaskExecutor" max-messages-per-poll="${poller.maxMessagesPerPoll}" error-channel="drsGatewayPollerError" />
    <int:transactional propagation="REQUIRED" read-only="true" transaction-manager="transactionManager" />
</int:poller>

在Java中，我的消费者定义为：

@Transactional(propagation = Propagation.REQUIRED, readOnly = true, value = "transactionManager")
@ServiceActivator(inputChannel = "actionInstructionTransformed", poller = @Poller(value = "customPoller"),
      adviceChain = "actionInstructionRetryAdvice")
public final void processInstruction(final ActionInstruction instruction)

从文档（http://docs.spring.io/autorepo/docs/spring-integration/4.0.2.RELEASE/reference/html/amqp.html）中，我了解actionInstructionTransformed应该是可轮询的，因为我添加了message-driven =＆＃34; false＆＃34;。

运行我的Spring Boot应用程序时，我遇到异常：引起：java.lang.IllegalStateException：A＆＃39; @ Poller＆＃39;不应该为基于注释的端点指定，因为＆＃39; actionInstructionTransformed＆＃39;是SubscribableChannel（不可轮询）。

我正在使用Spring Boot 1.4.4.RELEASE。

如何强制actionInstructionTransformed被识别为可轮询？

Answer 1

也许您没有导入XML？在这种情况下，框架将为服务激活器输入通道创建DirectChannel。

这对我来说很好......

@SpringBootApplication
@ImportResource("context.xml")
public class So42209741Application {

    public static void main(String[] args) throws Exception {
        ConfigurableApplicationContext context = SpringApplication.run(So42209741Application.class, args);
        context.getBean("pollable", MessageChannel.class).send(new GenericMessage<>("foo"));
        Thread.sleep(10000);
        context.close();
    }

    @ServiceActivator(inputChannel = "pollable", poller = @Poller(fixedDelay = "5000"))
    public void foo(String in) {
        System.out.println(in);
    }

}

context.xml中

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:int-amqp="http://www.springframework.org/schema/integration/amqp"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/integration/amqp http://www.springframework.org/schema/integration/amqp/spring-integration-amqp.xsd">


    <int-amqp:channel id="pollable" message-driven="false" />

</beans>

AMQP可轮询通道未被识别为可轮询

1 个答案: