Spring Webflow 流执行 Url 为空

Question

我正在通过 Spring Web Flow 制作简单的订单流，我的项目中也有 Spring MVC。我一直在按照指南做所有事情，但我的网络应用程序根本没有对我的流程做出反应。 Spring 网络流量配置：

     @Configuration
     @ComponentScan(basePackages = "config")
     public class WebFlowConfig extends AbstractFlowConfiguration {
@Bean
public FlowBuilderServices flowBuilderServices() {
    return getFlowBuilderServicesBuilder()
            .setViewFactoryCreator(mvcViewFactoryCreator())
            .setDevelopmentMode(true).build();
}

@Bean
public MvcViewFactoryCreator mvcViewFactoryCreator() {
    MvcViewFactoryCreator factoryCreator = new MvcViewFactoryCreator();
    factoryCreator.setViewResolvers(

    Collections.singletonList(this.webMvcConfig.resourceViewResolver()));
    factoryCreator.setUseSpringBeanBinding(true);
    return factoryCreator;
}
@Autowired
private DispatcherConfig webMvcConfig;

@Bean
public FlowDefinitionRegistry flowRegistry() {
   FlowDefinitionRegistry registry = getFlowDefinitionRegistryBuilder().addFlowLocation("/WEB-INF/flows/order/flowcnf.xml","order").build();
   return registry;
}

@Bean
public FlowExecutor flowExecutor() {
    return

            getFlowExecutorBuilder(flowRegistry()).build();
}

@Bean
public FlowHandlerMapping flowHandlerMapping(){
    final FlowHandlerMapping handeler = new FlowHandlerMapping();
    handeler.setFlowRegistry(flowRegistry());
    handeler.setFlowUrlHandler(defaultFlowUrlHandler());
    return handeler;
}
@Bean
public DefaultFlowUrlHandler defaultFlowUrlHandler(){
    return new DefaultFlowUrlHandler();
}

@Bean
public FlowHandlerAdapter adapter(){
    FlowHandlerAdapter adapter = new FlowHandlerAdapter();
    adapter.setFlowUrlHandler(defaultFlowUrlHandler());
    adapter.setFlowExecutor(flowExecutor());
    return adapter;
}
}

正如我所说，我正在使用 Spring MVC 可能是由于它而出现的问题。

下面的代码片段必须运行 "thankCustomer" 视图状态，但事实并非如此。如果我单击 link.

，我会收到 404 错误

<a class=button href="${flowExecutionUrl}&_eventId=thankCustomer">Замовити!</a>

以及流程代码：

<?xml version="1.0" encoding="UTF-8"?>
  <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"
  start-state="identify">
<var name="order" class="entity.BookOrder"/> 

<subflow-state id="identify" subflow="order/custom" >
    <output name="user" value="order.custName" />
    <transition on="userIsReady" to="buildOrder"/>
</subflow-state>

<subflow-state id="buildOrder" subflow="order/build">
    <input name="order" value="order" />
    <transition to="takePayment" on="orderBuilt" />
</subflow-state>


<subflow-state id="takePayment" subflow="order/takePayment" >
    <input name="order" value="order"/>
    <transition on="paymentTaken" to="saveOrder" />
</subflow-state>
<action-state id="saveOrder">
    <evaluate expression="userServiceImpl.addOrder(order.custName,order)"/>
    <transition to="thankCustomer" />
</action-state>

<view-state id="thankCustomer" view="/WEB-INF/pages/greeting.jsp" >
    <transition to="end-point" />
</view-state>

<end-state id="end-point"/>

<global-transitions>
    <transition on="cancel" to="end-point" />
</global-transitions>

</flow>

我尝试使用流 ID（顺序）代替空的 flowExecutionUrl，但仍然出现相同的错误，如果能提供任何帮助，我将不胜感激。

Answer 1

我需要为我的 FlowHandlerMapping Bean 设置 "order"，因为我已经有 2 个 viewResolver。

Spring Webflow 流执行 Url 为空

Spring Web Flow flowExecutionUrl is empty

spring

spring-webflow