我尝试使用多个jpa:inbound-channel-adapter。但是我有一个问题。当我添加两个入站通道适配器时,只有最后一个工作。例如,有两个入站通道,我们现在将它们称为x和y。如果我先写x然后y写入application.xml文件,只有y工作。如果先写y然后x只有x工作。这是xml配置,
<int:channel id="emailChannel" />
<int-jpa:inbound-channel-adapter
channel="emailChannel" entity-manager-factory="entityManagerFactory"
auto-startup="true"
jpa-query="select slt from Email slt where slt.mailStatus = 'NEW'"
expect-single-result="false" delete-after-poll="false">
<int:poller fixed-rate="10000" >
<int:transactional propagation="REQUIRED"
transaction-manager="transactionManager" />
</int:poller>
</int-jpa:inbound-channel-adapter>
<int:service-activator input-channel="emailChannel" ref="EmailSenderEndPoint" method="sendEmail" />
<int:channel id="msgChannel" />
<int-jpa:inbound-channel-adapter
channel="msgChannel" entity-manager-factory="entityManagerFactory"
auto-startup="true"
jpa-query="select rm from Msg rm where rm.isApproved= '1' "
expect-single-result="false" delete-after-poll="false">
<int:poller fixed-rate="30000">
<int:transactional propagation="REQUIRED"
transaction-manager="transactionManager" />
</int:poller>
</int-jpa:inbound-channel-adapter>
<int:service-activator input-channel="msgChannel" ref="MsgSenderEndPoint" method="sendMsg" />
在上面的示例中,只有msgChannel可以正常工作。但如果我改变如下,只有emailChannel有效。
<int:channel id="msgChannel" />
<int-jpa:inbound-channel-adapter
channel="msgChannel" entity-manager-factory="entityManagerFactory"
auto-startup="true"
jpa-query="select rm from Msg rm where rm.isApproved= '1' "
expect-single-result="false" delete-after-poll="false">
<int:poller fixed-rate="30000">
<int:transactional propagation="REQUIRED"
transaction-manager="transactionManager" />
</int:poller>
</int-jpa:inbound-channel-adapter>
<int:service-activator input-channel="msgChannel" ref="MsgSenderEndPoint" method="sendMsg" />
<int:channel id="emailChannel" />
<int-jpa:inbound-channel-adapter
channel="emailChannel" entity-manager-factory="entityManagerFactory"
auto-startup="true"
jpa-query="select slt from Email slt where slt.mailStatus = 'NEW'"
expect-single-result="false" delete-after-poll="false">
<int:poller fixed-rate="10000" >
<int:transactional propagation="REQUIRED"
transaction-manager="transactionManager" />
</int:poller>
</int-jpa:inbound-channel-adapter>
<int:service-activator input-channel="emailChannel" ref="EmailSenderEndPoint" method="sendEmail" />
我无法理解问题所在。你可以帮帮我吗?
编辑:我解决了这个问题。我将接口添加到服务激活器类,然后解决了问题。
答案 0 :(得分:0)
行。这是一个错误。见JIRA:https://jira.spring.io/browse/INT-4325。
因此,请修复您必须为id
定义定义唯一<int-jpa:inbound-channel-adapter>
的问题:
<int-jpa:inbound-channel-adapter id="msgJpaAdapter"
channel="msgChannel" entity-manager-factory="entityManagerFactory"
...
<int-jpa:inbound-channel-adapter id="emailJpaAdapter"
channel="emailChannel" entity-manager-factory="entityManagerFactory"
<强>更新强>
我们有一个配置测试用例:
<int-jpa:inbound-channel-adapter id="jpaInboundChannelAdapter1"
entity-manager-factory="entityManagerFactory"
entity-class="org.springframework.integration.jpa.test.entity.StudentDomain"
expect-single-result="true"
parameter-source="jpaParameterSource"
channel="out">
<int:poller fixed-rate="5000"/>
</int-jpa:inbound-channel-adapter>
<int-jpa:inbound-channel-adapter id="jpaInboundChannelAdapter2"
entity-manager-factory="entityManagerFactory"
entity-class="org.springframework.integration.jpa.test.entity.StudentDomain"
max-results="13"
delete-after-poll="true"
flush-after-delete="true"
channel="out">
<int:poller fixed-rate="5000"/>
</int-jpa:inbound-channel-adapter>
像:
JpaExecutor jpaExecutor1 = context.getBean("jpaInboundChannelAdapter1.jpaExecutor", JpaExecutor.class);
JpaExecutor jpaExecutor2 = context.getBean("jpaInboundChannelAdapter2.jpaExecutor", JpaExecutor.class);
assertNotNull(jpaExecutor1);
assertNotNull(jpaExecutor2);
assertNotSame(jpaExecutor1, jpaExecutor2);
但是在空id
的情况下,它们确实是同一个对象。