无法启动我的Spring Web Flow

时间:2014-07-30 11:26:20

标签: spring jsp spring-mvc spring-webflow

我有一个使用Spring Web Flow的应用程序。这是我的web.xml:

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 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-app_2_5.xsd">

    <!-- The definition of the Root Spring Container shared by all Servlets and Filters -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/spring/root-context.xml</param-value>
    </context-param>

    <!-- Creates the Spring Container shared by all Servlets and Filters -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- Processes application requests -->
    <servlet>
        <servlet-name>appServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <welcome-file-list>
        <welcome-file>home.jsp</welcome-file>
    </welcome-file-list>
    <servlet-mapping>
        <servlet-name>appServlet</servlet-name>
        <url-pattern>*.action</url-pattern>
    </servlet-mapping>

</web-app>

servlet-context.xml中我的流程的定义:

<beans:bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">

        <beans:property name="mappings">
        <beans:value>inicio.do=flowController</beans:value>
        </beans:property>
        <beans:property name="alwaysUseFullPath" value="true"></beans:property>
    </beans:bean>
    <beans:bean id="flowcontroller" class="org.springframework.webflow.mvc.servlet.FlowController">
    <beans:property name="flowExecutor" ref="flowExecutor"></beans:property>
    </beans:bean>
    <webflow:flow-executor id="flowExecutor" flow-registry="flowRegistry"/>
    <webflow:flow-registry id="flowRegistry" flow-builder-services="flowBuilderServices"> 
            <webflow:flow-location id="inicio" path="/WEB-INF/flujos/flujo.xml"/> 
    </webflow:flow-registry>   
    <webflow:flow-builder-services id="flowBuilderServices" 
            view-factory-creator="viewFactoryCreator"/>
            <beans:bean id="viewFactoryCreator" class="org.springframework.webflow.mvc.builder.MvcViewFactoryCreator">
            <beans:property name="viewResolvers">
            <beans:list>
                <beans:ref bean="viewResolver"/>
            </beans:list>
            </beans:property>
            </beans:bean>
     <beans:bean id="flowController" class="org.springframework.webflow.mvc.servlet.FlowController">
        <beans:property name="flowExecutor" ref="flowExecutor"></beans:property>
     </beans:bean>

该流程由另一个JSP与重定向相关联。当用户点击应该导致流程的链接时,&#34; startflow.jsp&#34;被调用,它有一个重定向到流,这样:

<c:redirect url="inicio.do"></c:redirect> 

现在,我收到一个404错误页面,说myapp / inicio.do不可用。我做错了什么?有谁能够帮我?谢谢。

1 个答案:

答案 0 :(得分:0)

您的调度程序servlet appServvlet映射到 * .action (请参阅web.xml中的.action扩展名),其中您映射到 inicio.do 的SimpleUrlHandlerMapping中。

这是它的工作原理:

1)服务器知道哪个servlet应该处理请求,具体取决于请求url和web.xml中的servlet映射。

2)DispatcherServlet接收请求并检查HandlerMapping并调用与请求关联的Controller。

3)如果定义了FlowController,dispactherServlet将根据处理程序映射配置向其委托请求。

但是没有与您的请求匹配的servletmapping,因为没有映射到* .do。

因此,请将重定向更改为:

    <c:redirect url="/inicio.action"></c:redirect> 

并映射到:

    <beans:value>inicio.action=flowController</beans:value>