spring-mvc - 将 Spring WebFlow 与 Thymeleaf 集成

Question

我正在使用 Thymeleaf 模板片段开发 SpringMVC 应用程序。我想添加简单的流程。这是我的项目结构和配置:



我的 spring-servlet.xml 文件:

    <?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:mvc="http://www.springframework.org/schema/mvc"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

    <!-- Deklaracja pakietów kontrolerów: -->
    <context:component-scan base-package="pl.etestownik.controller"
        scoped-proxy="targetClass" />

    <mvc:annotation-driven
        ignore-default-model-on-redirect="true" />

    <mvc:default-servlet-handler />


    <bean
        class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
        <property name="webBindingInitializer">
            <bean
                class="org.springframework.web.bind.support.ConfigurableWebBindingInitializer" />
        </property>
    </bean>


    <!-- Thymeleaf konfiguracja resolverów: -->
    <bean id="templateResolver"
        class="org.thymeleaf.templateresolver.ServletContextTemplateResolver">
        <property name="prefix" value="/" /> 
        <property name="suffix" value=".html" />
        <property name="templateMode" value="HTML5" />
        <property name="characterEncoding" value="UTF-8" />
        <property name="cacheable" value="false" />
        <property name="order" value="0"></property>
    </bean>
<!--
     <bean id="thymeleafViewResolver" class="org.thymeleaf.spring4.view.ThymeleafViewResolver">
        <property name="templateEngine" ref="templateEngine" />
        <property name="characterEncoding" value="UTF-8" />
        <property name="contentType" value="text/html; charset=UTF-8" />
        <property name="order" value="1" />
    </bean>
 -->
    <bean id="thymeleafViewResolver" class="org.thymeleaf.spring4.view.AjaxThymeleafViewResolver">
        <property name="viewClass"  value="org.thymeleaf.spring4.view.FlowAjaxThymeleafView" />
        <property name="templateEngine" ref="templateEngine" />
        <property name="order" value="1" />
    </bean>


    <bean id="templateEngine" class="org.thymeleaf.spring4.SpringTemplateEngine">
        <property name="templateResolver" ref="templateResolver" />
        <property name="additionalDialects">
            <set>
                <bean class="nz.net.ultraq.thymeleaf.LayoutDialect" />
            </set>
        </property>
    </bean>

    <import resource="webflow.xml" />
        <!-- Spring WebFlow -->
    <bean id="viewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass"
            value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/flows" />
        <property name="suffix" value=".html" />
        <property name="order" value="2"></property>
    </bean> 


</beans>

webflow.xml 文件:

    <beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:webflow="http://www.springframework.org/schema/webflow-config"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd 
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context-4.0.xsd 
http://www.springframework.org/schema/webflow-config 
http://www.springframework.org/schema/webflow-config/spring-webflow-config-2.4.xsd">


    <bean class="org.springframework.webflow.mvc.servlet.FlowHandlerMapping">
        <property name="flowRegistry" ref="flowRegistry" />
        <property name="order" value="0" />
    </bean>

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

    <webflow:flow-registry id="flowRegistry"
        base-path="/flows" flow-builder-services="flowBuilderServices">
        <webflow:flow-location id="addQuiz"
            path="/adding-quiz/add-quiz-flow.xml"/>

    </webflow:flow-registry>

    <webflow:flow-executor id="flowExecutor"
        flow-registry="flowRegistry" />

    <webflow:flow-builder-services id="flowBuilderServices"
        view-factory-creator="mvcViewFactoryCreator" />

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

</beans>

并添加-quiz-flow.xml:

<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-2.4.xsd"
start-state="quizName">

<view-state id="quizName" view="flows/adding-quiz/quizName" >
    <transition on="addQuestion" to="quizQuestion" />
</view-state>

<view-state id="quizQuestion" view="flows/adding-quiz/quizQuestion">
    <transition on="nextQuestion" to="quizQuestion" />
    <transition on="finish" to="finish" />
</view-state>

<end-state id="finish"/> <!--  Jakies "zapisano do bazy, czy cos -->

现在:
mvcViewFactoryCreator bean 中的属性 viewResolvers 设置为 viewResolver(所以它指向 InternalResourceViewResolver)。我的流程工作正常，但它不包含 thymleaf 模板片段，只有简单的页面，没有页眉和页脚。
正如我在 thymeleaf 文档中读到的: Integrating Thymeleaf and WebFlow
我应该添加 thymeleafViewResolver 并更改 mvcViewFactoryCreator 中的属性

<property name="viewResolvers" ref="viewResolver" />

到

<property name="viewResolvers" ref="thymeleafViewResolver" />

在此配置中，整个应用程序工作正常(包括模板)，但在尝试启动流程时，键入: http://localhost:8070/addQuiz?quizName我，得到以下错误:

`org.thymeleaf.exceptions.TemplateInputException: Error resolving template "/adding-quiz/quizName", template might not exist or might not be accessible by any of the configured Template Resolvers`

你知道我哪里出错了吗？

Answer 1

好的，看来我已经解决了这个问题。有几个错误:
首先，我变了

<view-state id="quizName" view="/adding-quiz/quizName">

到

<view-state id="quizName" view="/flows/adding-quiz/quizName">

之后我在 html 文件中发现了一个错误。现在，配置看起来工作正常。