Question

我有一个Spring集成应用程序，用于轮询来自AS400 DB的数据，然后经过一些修改后将其传输到MQ。它运行正常，直到我决定升级Spring Integration版本从版本 - spring-integration-core-2.2.3.RELEASE升级到spring-integration-core-3.0.1.RELEASE后，我收到以下错误。

Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from class path resource [tcm-hosttrade-inbound-adapter.xml]; nested exception is java.lang.ClassCastException: org.springframework.beans.factory.config.RuntimeBeanReference cannot be cast to org.springframework.beans.factory.config.BeanDefinition
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:412)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:334)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:302)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:174)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:209)
    at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.importBeanDefinitionResource(DefaultBeanDefinitionDocumentReader.java:250)
    ... 21 more
Caused by: java.lang.ClassCastException: org.springframework.beans.factory.config.RuntimeBeanReference cannot be cast to org.springframework.beans.factory.config.BeanDefinition
    at org.springframework.integration.config.xml.AbstractPollingInboundChannelAdapterParser.doParse(AbstractPollingInboundChannelAdapterParser.java:50)
    at org.springframework.integration.config.xml.AbstractChannelAdapterParser.parseInternal(AbstractChannelAdapterParser.java:66)
    at org.springframework.beans.factory.xml.AbstractBeanDefinitionParser.parse(AbstractBeanDefinitionParser.java:59)
    at org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse(NamespaceHandlerSupport.java:73)
    at org.springframework.integration.config.xml.AbstractIntegrationNamespaceHandler.parse(AbstractIntegrationNamespaceHandler.java:94)
    at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1438)
    at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1428)
    at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:195)
    at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.doRegisterBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:139)
    at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:108)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:493)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:390)
    ... 26 more

我检查了类的代码 - org.springframework.integration.config.xml.AbstractPollingInboundChannelAdapterParser我刚发现这3行代码与早期版本不同 -

String channelAdapterId = this.resolveId(element, adapterBuilder.getRawBeanDefinition(), parserContext);
        String sourceBeanName = channelAdapterId + ".source";
        parserContext.getRegistry().registerBeanDefinition(sourceBeanName, (BeanDefinition) source);

错误是因为这一行 - parserContext.getRegistry（）。registerBeanDefinition（sourceBeanName，（BeanDefinition）source）;

如何使此代码正常工作？以下是我的豆子，可供参考 -
入站通道Bean -

  <inbound-channel-adapter id="inboundAdapter" 
            ref="readFromMessageStore"
            channel="inboundChannel" auto-startup="false" />

Answer 1

是的，3.0.1版本存在问题。它已在3.0.2版本中得到解决。您可以查看此链接了解详情：https://jira.spring.io/browse/INT-3300。

页面链接中的小摘要：


Summary Class cast exception using DefaultInboundChannelAdapterParser 
Regression: Class cast exception using DefaultInboundChannelAdapterParser
Fix Version/s       3.0.2 [ 14362 ]
Fix Version/s       4.0 M4 [ 14361 ]
Affects Version/s       3.0.1 [ 14309 ]

Answer 2

升级到新版本时，通常建议使用该行中的最新版本;当您在该行中的最新版本为3.0.1时，我对您选择3.0.7的原因感到好奇。当前版本为4.1.5;有关完整版本信息，请参阅the project page。通常，点发布（3.0.2,3.0.3等）仅包含错误修复。另外，请注意migration guides。

升级Spring Integration版本后获取类强制转换异常

2 个答案: