Question

我是使用Spring Webflow的新手。我正在尝试使用全局转换。在我的jsp中，我试图使用

显示所有过渡

<c:forEach var="transition" items="${flowRequestContext.currentState.transitions}">     
<c:out value="${transition.id}"/>
</c:forEach>

我可以看到currentState的所有转换，但是我看不到全局转换。

我的理解是所有视图状态都可以使用全局转换。要获得全局转换，我是否需要以不同的方式访问它？

这是我的flow xml的简化版本

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

<view-state id="state1" view="view1.jsp" model="person">
    <transition on="submit" to="state2"/>
    <transition on="cancel" to="canceled"/>
</view-state>

<view-state id="state2" view="view1.jsp" model="person">
    <transition on="complete" to="complete"/>
</view-state>

<view-state id="canceled" view="view1.jsp" model="person">
    <transition on="resubmit" to="resubmit"/>
</view-state>

<action-state id="reassign">
    <evaluate expression="CustomAction.reassign(flowRequestContext)"/>
</action-state>

<end-state id="complete"/>

<global-transitions>    
    <transition on="cancel" to="canceled"/>
    <transition on="reassign" to="reassign"/>
</global-transitions>

</flow>

所以当在jsp中的state1中我怎样才能显示包括全局的所有traentions？

感谢您提前提供任何帮助

Answer 1

Better late than never. There is a getGlobalTransitionSet method, but it's in the implementation org.springframework.webflow.engine.Flow class, not in the interface FlowDefinition. This method returns a TransitionSet that is not iterable by forEach, but fortunatelly it has a toArray method.

If you feel comfortable with this, you could use:

${flowRequestContext.activeFlow.globalTransitionSet.toArray()}

Tested.

显示Spring WebFlow全局转换

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