[英]How to implement Switch/if else if statement in spring webflow?
已實現如下的switch語句。
如果有任何錯誤,請您驗證並更正嗎?
<set name="flowScope.Valid" value="true">
<decision-state id="isDNCheckNotRequired" test="Valid == true">
<transition on="true" to="even"/>
<transition on="false" to="odd"/>
</decision-state>
<action-state id="even">
<evaluate expression="Test.setEven(true)">
</action-state>
<action-state id="odd">
<evaluate expression="Test.set(false)">
</action-state>
請告訴我這是春天webflow 2.0中的實現方式
提前致謝。
引用文檔
對於決策狀態
<decision-state id="moreAnswersNeeded">
<if test="interview.moreAnswersNeeded()" then="answerQuestions" else="finish" />
</decision-state>
作為替代品
<action-state id="moreAnswersNeeded">
<evaluate expression="interview.moreAnswersNeeded()" />
<transition on="yes" to="answerQuestions" />
<transition on="no" to="finish" />
</action-state>
類似於視圖狀態
<view-state id="uploadFile" model="uploadFileHandler">
<var name="fileUploadHandler" class="org.springframework.webflow.samples.booking.FileUploadHandler" />
<transition on="upload" to="finish" >
<evaluate expression="fileUploadHandler.processFile()"/>
</transition>
<transition on="cancel" to="finish" bind="false"/>
</view-state>
請參閱: http : //docs.spring.io/spring-webflow/docs/2.3.4.RELEASE/reference/html/actions.html#decision-state
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