Question

我有3个弹簧网络流 - flow1，flow2，flow3。 flow2和flow 3分配了父流量1，如下所示：

<flow xmlns="http://www.springframework.org/schema/webflow"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.springframework.org/schema/webflow
http://www.springframework.org/schema/webflow/spring-webflow-2.0.xsd"
  parent="flow1">

在flow1中，我有一个全局转换和一个结束状态：

<end-state id="flowInterrupted" view="flowInterruptedPage"/>

<global-transitions>
    <transition on-exception="com.core.exceptions.policy.InvalidPolicyContactException" to="flowInterrupted">
        <evaluate expression="webFlowService.clearCurrentInterruptCause()"/>
    </transition>
</global-transitions>

在我的应用程序的某个时刻，在flow2中，子流flow3被称为

<subflow-state id="stateInFlow2WhereSubFlow3IsDefined" subflow="flow3">

</subflow-state>

，在flow3中，抛出InvalidPolicyContactException。它在flow1中正确找到（因为它是clearCurrentInterruptCause（）的get），但后来抛出异常，在flow2中找不到flowInterrupted转换 - 这是真的，导致它在flow1中（定义了全局转换）。这是一个例外：

org.springframework.webflow.engine.NoMatchingTransitionException: No      transition found on occurence of event 'flowInterrupted'  in state 'stateInFlow2WhereSubFlow3IsDefined' of flow 'flow2' -- valid transitional criteria are array<TransitionCriteria>[exit, contactSelected] -- likely programmer error, check the set of TransitionCriteria for this state at org.springframework.webflow.engine.TransitionableState.getRequiredTransition(TransitionableState.java:93) at org.springframework.webflow.engine.TransitionableState.handleEvent(TransitionableState.java:119)
at org.springframework.webflow.engine.SubflowState.handleEvent(SubflowState.java:116)
at org.springframework.webflow.engine.Flow.handleEvent(Flow.java:555)
at org.springframework.webflow.engine.impl.FlowExecutionImpl.handleEvent(FlowExecutionImpl.java:388)
at org.springframework.webflow.engine.impl.RequestControlContextImpl.handleEvent(RequestControlContextImpl.java:210)
at org.springframework.webflow.engine.impl.FlowExecutionImpl.endActiveFlowSession(FlowExecutionImpl.java:412)
at org.springframework.webflow.engine.impl.RequestControlContextImpl.endActiveFlowSession(RequestControlContextImpl.java:238)

当我更改结束状态时id =＆＃34; flowInterrupted＆＃34;查看状态它工作正常。当它从其他流程调用时，将flow1作为父级，它也可以正常工作。当我从flow3中删除parent = flow1时，我不会在全局转换中捕获exceptin。唯一的问题是，当从子流引发异常时。

任何帮助都会受到赞赏 - 我当然可以将flowInterrupted状态放在flow2中并解决问题，但我想了解，为什么会发生这种情况

感谢。

Answer 1

添加 <transition on="flowInterrupted" to="flowInterrupted"/> 在你的全球转型中

未找到异常和过渡的全球过渡

1 个答案: