Question

我正在尝试使用Thymeleaf和Spring WebFlow构建示例应用程序。我有一个简单的表单，我在flowScope

中的对象中有一个文本字段

这是表格：

<form id="mainForm" th:action="${flowExecutionUrl}">
<input type="text" id="selectedDate" th:value="${currentMonthStatus.selectedDate}" /> 
<input type="submit" name="_eventId" value="refresh" />
</form>

这是流程：

    <?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"
parent="header">

<on-start>
    <evaluate expression="initServiceBean.getCurrentMonthSituation('me')"
        result="flowScope.currentMonthStatus" />
</on-start>

<view-state id="main" view="main/mainPage">
    <transition on="refresh" to="reload" />
</view-state>

<action-state id="reload">
    <evaluate
        expression="initServiceBean.getMonthSituation(flowScope.currentMonthStatus.selectedDate, 'me')"
        result="flowScope.currentMonthStatus" />
    <transition to="main" />
</action-state>
</flow>

这是我的webflow配置

    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
        xmlns:jee="http://www.springframework.org/schema/jee" xmlns:mvc="http://www.springframework.org/schema/mvc"
        xmlns:tx="http://www.springframework.org/schema/tx" xmlns:faces="http://www.springframework.org/schema/faces"
        xmlns:webflow="http://www.springframework.org/schema/webflow-config"
        xsi:schemaLocation="http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.1.xsd
            http://www.springframework.org/schema/webflow-config http://www.springframework.org/schema/webflow-config/spring-webflow-config-2.3.xsd
            http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
            http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/faces http://www.springframework.org/schema/faces/spring-faces-2.2.xsd
            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">

        <context:component-scan base-package="it.addvalue.**.web.services" />

        <mvc:annotation-driven />

        <!-- <mvc:resources location="/" mapping="/resources/**" /> -->
        <mvc:resources location="/img/" mapping="/img/**" />
        <mvc:resources location="/css/" mapping="/css/**" />
        <mvc:resources location="/js/" mapping="/js/**" />
        <mvc:resources location="/less/" mapping="/less/**" />

        <faces:resources />

        <bean class="org.springframework.webflow.mvc.servlet.FlowHandlerMapping">
            <property name="flowRegistry" ref="flowRegistry" />
        </bean>

        <bean id="handlerMapping"
            class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping" />

        <!-- Resolves views selected for rendering by @Controllers to .xhtml resources 
            in the /WEB-INF/views directory -->
        <bean class="org.springframework.web.servlet.view.UrlBasedViewResolver">
            <property name="viewClass" value="org.springframework.faces.mvc.JsfView" />
            <property name="prefix" value="/WEB-INF/views/" />
            <property name="suffix" value=".xhtml" />
        </bean>

        <!-- Dispatches requests mapped to flows to FlowHandler implementations -->
        <bean class="org.springframework.faces.webflow.JsfFlowHandlerAdapter">
            <property name="flowExecutor" ref="flowExecutor" />
        </bean>

        <!-- Executes flows: the central entry point into the Spring Web Flow system -->
        <webflow:flow-executor id="flowExecutor">
            <webflow:flow-execution-listeners>
                <webflow:listener ref="facesContextListener" />
            </webflow:flow-execution-listeners>
        </webflow:flow-executor>

        <!-- The registry of executable flow definitions -->
        <webflow:flow-registry id="flowRegistry"
            flow-builder-services="flowBuilderServices" base-path="/WEB-INF/flows">
            <webflow:flow-location-pattern value="/**/*-flow.xml" />
        </webflow:flow-registry>

        <!-- Configures the Spring Web Flow JSF integration -->
        <faces:flow-builder-services id="flowBuilderServices" 
            development="true" view-factory-creator="mvcViewFactoryCreator"  />

        <!-- A listener to create and release a FacesContext -->
        <bean id="facesContextListener"
            class="org.springframework.faces.webflow.FlowFacesContextLifecycleListener" />

        <!-- Thymeleaf integration -->

        <bean id="templateEngine" class="org.thymeleaf.spring3.SpringTemplateEngine">
            <property name="templateResolver" ref="templateResolver" />
        </bean>


        <bean id="templateResolver"
            class="org.thymeleaf.spring3.templateresolver.SpringResourceTemplateResolver">
            <property name="prefix" value="/thymeleaf/" />
            <property name="suffix" value=".html" />
            <property name="templateMode" value="HTML5" />
            <property name="cacheable" value="false"/>
        </bean>

        <bean id="thymeleafViewResolver" class="org.thymeleaf.spring3.view.AjaxThymeleafViewResolver">
            <property name="viewClass"
                value="org.thymeleaf.spring3.view.FlowAjaxThymeleafView" />
            <property name="templateEngine" ref="templateEngine" />
        </bean>

        <bean id="mvcViewFactoryCreator"
            class="org.springframework.webflow.mvc.builder.MvcViewFactoryCreator">
            <property name="viewResolvers" ref="thymeleafViewResolver" />
        </bean>
    </beans>

我的问题是：提交调用新流而不是调用操作，错误在哪里？
这是我第一次在没有JSF的情况下使用WebFlow。

Answer 1

方法1：

    <input type="submit" name="_eventId_refresh" value="refresh" />

当发出事件信号时，Web Flow会查找以“_eventId _”开头的名称，并将剩余的子字符串视为事件ID。所以在上面的例子中，提交_eventId_refresh变为刷新。当有多个事件可以从同一表单发出信号时，会遵循这种做法。

方法2：

    <input type="submit" value="refresh" />
    <input type="hidden" name="_eventId" value="refresh" />

当发出事件信号时，Web Flow会查找名称_eventId并将其值用作事件ID。当只有一个事件可以在表单上发出信号时，就会遵循这种做法。

当您通过单击按钮提交并且未找到eventId时，流程执行将刷新，而不是新流程。

因此，请根据您的表单更改您的活动并尝试。

Spring WebFlow + Thymeleaf表单提交（没有ajax !!!）

1 个答案: