Question

我有Spring 3应用程序，将Tiles2作为视图解析器。每当我点击＆＃34;提交＆＃34;按钮下一个jsp页面应该显示但是它保持在同一页面上。

我在/ WEB-INF / flow目录中有一个文件WebFlow.xml文件，而JSP也在同一个文件夹中。

我的配置如下： -servlet.xml后缀

<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:mvc="http://www.springframework.org/schema/mvc"
    xmlns:flow="http://www.springframework.org/schema/webflow-config"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-3.0.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
        http://www.springframework.org/schema/webflow-config
        http://www.springframework.org/schema/webflow-config/spring-webflow-config-2.0.xsd">
<mvc:annotation-driven/>
    <context:component-scan base-package="com.controller.*"/>

    <bean id="tilesViewResolver" class="org.springframework.web.servlet.view.tiles2.TilesViewResolver"/>

    <bean id="tilesConfigurer" class="org.springframework.web.servlet.view.tiles2.TilesConfigurer">
        <property name="definitions">
            <list>
                <value>/WEB-INF/tiles.xml</value>
            </list>
        </property>
    </bean>
<flow:flow-executor id="flowExecutor" flow-registry="flowRegistry"/>

    <flow:flow-registry id="flowRegistry">
        <flow:flow-location path="/WEB-INF/flow/WebFlow.xml" id="flow"/>
    </flow:flow-registry>

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

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

WebFlow.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-2.0.xsd">

    <var name="studentRegForm" class="com.formbean.flows.StudRegForm"/>

    <view-state id="login" view="login">
        <transition on="studentReg" to="studentReg"/>
    </view-state>

    <view-state id="studentReg" view="studentReg" model="studentRegForm">
        <transition on="submitStudInfo" to="studConfirmPage"/>
    </view-state>

    <view-state id="studConfirmPage">
        <transition on="submit" to="showStoredPage"/>
        <transition on="Cancel" to="studentReg"/>
    </view-state>

    <end-state id="showStoredPage"/>
</flow>

的login.jsp

<sf:form id="loginFrm" modelAttribute="loginForm" method="GET" action="${flowExecutionUrl}">
        <input type="text" name="_flowExecutionKey" value="${flowExecutionKey}"/>
        <input type="submit" value="Student Registration" name="_eventId_studentReg"/>
    </sf:form>

StudentReg.jsp

<sf:form id="studRegFrm" modelAttribute="studentRegForm" method="GET" action="${flowExecutionUrl}">
    <input type="text" name="_flowExecutionKey" value="${flowExecutionKey}"/>
        <table>
            <tr>
                <td><sf:label path="name">Please Enter Name:</sf:label></td>
                <td><sf:input path="name"/></td>
            </tr>
            <tr>
                <td><sf:label path="address">Please Enter Address:</sf:label></td>
                <td><sf:input path="address"/></td>
            </tr>
            <tr>
                <td></td>
                <td><input type="submit" name="_eventId_submitStudInfo" value="Submit"/></td>
            </tr>
        </table>
    </sf:form>

tiles.xml

<tiles-definitions>
    <definition name="mainLayout" template="/WEB-INF/jsp/layout/mainLayout.jsp">
        <put-attribute name="Title" value=""/>
        <put-attribute name="Header" value="/WEB-INF/jsp/layout/Header.jsp"/>
        <put-attribute name="Body" value=""/>
        <put-attribute name="Footer" value="/WEB-INF/jsp/layout/Footer.jsp"/>
    </definition>

    <definition name="login" extends="mainLayout">
        <put-attribute name="Title" value="Start Page"></put-attribute>
        <put-attribute name="Body" value="/WEB-INF/flow/login.jsp"/>
    </definition>

    <definition name="studentReg" extends="mainLayout">
        <put-attribute name="Title" value="Registration Page"></put-attribute>
        <put-attribute name="Body" value="/WEB-INF/flow/StudentReg.jsp"/>
    </definition>
</tiles-definitions>

但是每当我点击login.jsp的提交按钮时，它都会提供$ {flowExecutionUrl}＆amp; $ {flowExecutionKey}为空白，未显示下一个屏幕。我错过了一些配置或出了什么问题？请帮忙。

Answer 1

@Aasif您的配置＆＃39;看起来＆＃39;精细。众所周知，SWF对于排除故障是不直观的。尝试在您的流程中插入记录器，如下所示：

Printing log from flow.xml

并确定＆＃39;流动的位置＆＃39;执行正在中断。一旦你隔离了位置。尝试进入流程代码...我怀疑正在吞下一个异常。

可能答案：

如果我不得不猜测（即使您的配置看起来正确）。我怀疑SWF / tiles不会解析视图名称＆＃39; studentReg＆＃39;。尝试通过创建单独的流来隔离此案例，并查看是否可以导航到视图studentReg。您还可以进入Tiles解析器逻辑以确保它被定位。

另外：

在我看来，为viewStateId，transition和viewName（即＆＃39; studentReg＆＃39;）提供相同的名称是不好的做法。我认为当出现这样的问题时，它会使问题变得更加困难。最好为它们添加后缀。（即studentRegVsId，studentRegViewName等...）创建区别。

在弹簧网络流程中没有调用下一个状态

1 个答案: