如何使用 jsf 2.0 配置 spring webflow？

Question

我在将 JSF2.0 作为视图技术集成到 spring webflow 时遇到问题。 我设法让它“几乎”工作，唯一剩下的就是为 JSF2.0 配置 ajax 支持。

发送 Ajax 请求，接收来自服务器的响应，但响应不会触发组件的重新渲染。

帮助解决问题的一些线索：

• 在生成指向资源的 .js 链接时，JSF 行为是错误的。 JSF 尝试访问以下链接：

  http://localhost:8080/${context_path}/${flow_name}/javax.faces.resource/jsf.js?ln=javax.faces 这会返回 404。我必须在模板中硬编码以下链接以获得一些 ajax 支持：

  http://localhost:8080/${context-path}/javax.faces.resource/jsf.js.faces?ln=javax.faces（我在之后找到了这个链接关闭web-flow并调查纯JSF处理页面的源代码）

• 我假设 JSF 的配置是正确的。如果我从处理链中删除 webflow，一切都会按预期工作。链接没问题，组件重新渲染没问题

• 如果我将我的服务公开为 @ManagedBean（JSF 本机方法）并且不使用 Spring 支持的 bean 重新渲染工作正常，但我无法与 webflow 和流范围变量（web- flow 没有看到原生的@ManagedBeans），我仍然必须使用硬编码的链接。

• 我没有任何 Spring 资源 servlet/过滤器。我不使用 urlRewrite 规则转发到我的流程。

如果需要配置文件 - 我会在问题中发布它们。

感谢任何帮助。似乎这是使用整个技术堆栈的阻塞问题。

Answer 1

步骤：1 web.xml

    <?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
        id="WebApp_ID" version="2.5">
        <display-name>JSF2.0 with Spring webflow</display-name>

    <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>
                /WEB-INF/config/web-application-config.xml
            </param-value>
        </context-param>

        <context-param>
            <param-name>javax.faces.PROJECT_STAGE</param-name>
            <param-value>Production</param-value>
        </context-param>

        <context-param>
            <param-name>javax.faces.FACELETS_REFRESH_PERIOD</param-name>
            <param-value>1</param-value>
        </context-param>

    <filter>
            <filter-name>charEncodingFilter</filter-name>
            <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
            <init-param>
                <param-name>encoding</param-name>
                <param-value>UTF-8</param-value>
            </init-param>
            <init-param>
                <param-name>forceEncoding</param-name>
                <param-value>true</param-value>
            </init-param>
        </filter>

        <filter-mapping>
            <filter-name>charEncodingFilter</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>

        <servlet>
            <servlet-name>facesServlet</servlet-name>
            <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
            <load-on-startup>1</load-on-startup>
        </servlet>

        <servlet-mapping>
            <servlet-name>facesServlet</servlet-name>
            <url-pattern>/faces/*</url-pattern>
        </servlet-mapping>
        <servlet-mapping>

            <servlet-name>facesServlet</servlet-name>
            <url-pattern>*.jsf</url-pattern>
        </servlet-mapping>

        <servlet-mapping>
            <servlet-name>facesServlet</servlet-name>
            <url-pattern>*.faces</url-pattern>
        </servlet-mapping>

        <servlet-mapping>
            <servlet-name>facesServlet</servlet-name>
        <url-pattern>*.xhtml</url-pattern>
        </servlet-mapping>
<servlet>
        <servlet-name>Spring MVC Dispatcher Servlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value></param-value>
        </init-param>
        <load-on-startup>2</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>Spring MVC Dispatcher Servlet</servlet-name>
        <url-pattern>/spring/*</url-pattern>
    </servlet-mapping>


    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

     <listener>
        <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
    </listener>

     <listener>
        <listener-class>com.sun.faces.config.ConfigureListener</listener-class>
    </listener> 
    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
    </welcome-file-list>
</web-app>

步数：2 faces-config.xml

        <?xml version='1.0' encoding='UTF-8'?>
        <faces-config xmlns="http://java.sun.com/xml/ns/javaee"
            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
            xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_2_0.xsd"
            version="2.0">
        </faces-config>

步数：3 webflow-config.xml

<?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:webflow="http://www.springframework.org/schema/webflow-config"
       xmlns:faces="http://www.springframework.org/schema/faces"
       xsi:schemaLocation="
           http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.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/faces http://www.springframework.org/schema/faces/spring-faces-2.2.xsd">

    <!-- Executes flows: the central entry point into the Spring Web Flow system -->
    <webflow:flow-executor id="flowExecutor">
        <webflow:flow-execution-repository max-executions="1" />
        <webflow:flow-execution-attributes>
            <webflow:always-redirect-on-pause value="true"/>
        </webflow:flow-execution-attributes>
        <webflow:flow-execution-listeners>
            <webflow:listener ref="securityFlowExecutionListener"/>
            <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="facesFlowBuilderServices" 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="facesFlowBuilderServices" development="true" />

    <!-- Installs a listener to apply Spring Security authorities -->
    <bean id="securityFlowExecutionListener" class="org.springframework.webflow.security.SecurityFlowExecutionListener"/>

        <!-- Installs a listener that creates and releases the FacesContext for each request. -->
    <bean id="facesContextListener" class="org.springframework.faces.webflow.FlowFacesContextLifecycleListener"/>


</beans>

步骤：4 webmvc-config.xml

<?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:faces="http://www.springframework.org/schema/faces"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/faces http://www.springframework.org/schema/faces/spring-faces-2.4.xsd
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">

    <faces:resources />

    <!-- Maps request URIs to controllers.  Here we have two kinds of flows one  is login flow and another is main flow   -->           
    <bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <value>
                /main=flowController
               </value>
        </property>
        <property name="defaultHandler">
            <!-- Selects view names to render based on the request URI: e.g. /main selects "main" -->   
            <bean class="org.springframework.web.servlet.mvc.UrlFilenameViewController" />
        </property>
    </bean>

    <!-- it is used to handle the flow control Adaptor in 2.3.0.   This will come from spring framework.web.servlet3.2.1 -->
    <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter" />

    <!-- Handles requests mapped to the Spring Web Flow system and ajaxHandler.
    after security we need to enable the ajax for that we need to write one property i.e ajaxHandler -->
    <bean id="flowController" class="org.springframework.webflow.mvc.servlet.FlowController">
        <property name="flowExecutor" ref="flowExecutor" />
         <property name="ajaxHandler">
        <bean class="org.springframework.faces.webflow.JsfAjaxHandler"/>
    </property>
    </bean>

    <!-- Maps logical view names to Facelet templates in /WEB-INF (e.g. 'search' to '/WEB-INF/search.xhtml' -->
    <bean id="faceletsViewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver">
        <property name="viewClass" value="org.springframework.faces.mvc.JsfView"/>
        <property name="prefix" value="/WEB-INF/" />
        <property name="suffix" value=".xhtml" />
    </bean>

    <bean id="facesContextListener"  class="org.springframework.faces.webflow.FlowFacesContextLifecycleListener" />


</bean>

</beans>

Answer 2

最近我在一个 spring webflow 项目中从 JSF 1 迁移到 JSF 2。后来我发现ajax不起作用。我在 webmvc-config.xml 中配置了这两个 bean

第一个 bean 是问题

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

<bean class="org.springframework.faces.webflow.JsfFlowHandlerAdapter">
    <property name="flowExecutor" ref="flowExecutor" />
</bean>

你不能同时拥有它们。所以确保你只有 JsfFlowHandlerAdapter

<bean class="org.springframework.faces.webflow.JsfFlowHandlerAdapter">
    <property name="flowExecutor" ref="flowExecutor" />
</bean>

这是我项目中的一些框架版本，以防万一

    <spring.version>3.2.13.RELEASE</spring.version>
    <jsf.version>2.2.8-02</jsf.version>
    <org.springframework.webflow>2.4.0.RELEASE</org.springframework.webflow>
    <org.springframework.security.version>3.2.4.RELEASE</org.springframework.security.version>