如何使用 webconfigurer.class 配置 activiti 5.21.0

Question

我以前的 activiti 版本是 5.11，现在我正在尝试将其更新到 5.21.0。在之前的配置中使用了restlet servlet。现在我正在尝试通过 webconfigurer.class 对其进行配置。我在 web.xml 中注入了 webconfigurer 监听器。但它抛出一个错误。

web.xml 条目

<listener><listener-class>org.activiti.rest.servlet.WebConfigurer</listener-class></listener>

错误：

SEVERE: Exception sending context initialized event to listener instance of class org.activiti.rest.servlet.WebConfigurer
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'demoDataConfiguration': Invocation of init method failed; nested exception is java.lang.AbstractMethodError: org.activiti.bpmn.converter.child.BaseChildElementParser.parseChildElement(Ljavax/xml/stream/XMLStreamReader;Lorg/activiti/bpmn/model/BaseElement;Lorg/activiti/bpmn/model/BpmnModel;)V
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:136)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:408)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1558)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:755)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
    at org.activiti.rest.servlet.WebConfigurer.contextInitialized(WebConfigurer.java:45)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4961)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5455)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:634)
    at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1230)
    at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1876)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.AbstractMethodError: org.activiti.bpmn.converter.child.BaseChildElementParser.parseChildElement(Ljavax/xml/stream/XMLStreamReader;Lorg/activiti/bpmn/model/BaseElement;Lorg/activiti/bpmn/model/BpmnModel;)V
    at org.activiti.bpmn.converter.util.BpmnXMLUtil.parseChildElements(BpmnXMLUtil.java:126)
    at org.activiti.bpmn.converter.BaseBpmnXMLConverter.parseChildElements(BaseBpmnXMLConverter.java:253)
    at org.activiti.bpmn.converter.BaseBpmnXMLConverter.parseChildElements(BaseBpmnXMLConverter.java:243)
    at org.activiti.bpmn.converter.StartEventXMLConverter.convertXMLToElement(StartEventXMLConverter.java:55)
    at org.activiti.bpmn.converter.BaseBpmnXMLConverter.convertToBpmnModel(BaseBpmnXMLConverter.java:91)
    at org.activiti.bpmn.converter.BpmnXMLConverter.convertToBpmnModel(BpmnXMLConverter.java:426)
    at org.activiti.bpmn.converter.BpmnXMLConverter.convertToBpmnModel(BpmnXMLConverter.java:284)
    at org.activiti.engine.impl.bpmn.parser.BpmnParse.execute(BpmnParse.java:187)
    at org.activiti.engine.impl.bpmn.deployer.BpmnDeployer.deploy(BpmnDeployer.java:136)
    at org.activiti.engine.impl.persistence.deploy.DeploymentManager.deploy(DeploymentManager.java:58)
    at org.activiti.engine.impl.cmd.DeployCmd.execute(DeployCmd.java:106)

Answer 1

你确定所有的 Activiti 依赖都使用相同的版本吗？从这个错误消息中，我预计 activiti-bpmn-model 或 activiti-bpmn-converter 有不同的版本。