有什么方法可以处理 Spring Webflow 中不存在的 eventId 或缺少 eventId 参数吗?
例如对于这个网络流
<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">
<view-state id="welcome">
<transition on="goForward" to="nextStep"/>
</view-state>
<view-state id="nextStep">
<transition on="endFlow" to="finishStep" />
</view-state>
<end-state id="finishStep"/>
<global-transitions>
<transition on="cancel" to="finishStep"/>
</global-transitions>
</flow>
如何处理带有 _eventId=unexistingAction
等参数的请求或不带有 _eventId
参数的请求?
这通常会生成一个带有堆栈跟踪的页面...
no transition found on occurence of event in state of flow...
最佳答案
这是处理不存在的转换的方法:
<global-transitions>
<transition on-exception="org.springframework.webflow.engine.NoMatchingTransitionException" to="handlingViewState">
<evaluate expression="handlingBean.handle(flowExecutionException)"></evaluate>
</transition>
</global-transitions>
关于spring - spring webflow中无效的_eventId,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/18432059/