Seam pageflow 示例 NumberGuess Not landing on the second page

Question

我正在尝试运行简单的 Seam PageFlow 示例 NumberGuss。我已经将它部署在 Jboss 服务器上。当我访问 URL 时，它位于第一页，但如果我点击该页面上提供的任何按钮，它会显示 "The page isn't redirecting properly"。在服务器日志中，我发现

SEVERE [javax.enterprise.resource.webcontainer.jsf.application] (default task-16) Error Rendering View[/debug.xhtml]: org.jboss.weld.context.NonexistentConversationException: WELD-000321: No conversation found to restore for id 1.

I'm using wildfly-8.1.0 and jboss-seam-2.3.1

Attaching pageflow.jpdl.xml and numberGuess.xhtml for reference. Please help me resolve the issue I'm facing.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:f="http://java.sun.com/jsf/core"
      xmlns:s="http://jboss.org/schema/seam/taglib">
  <h:head>
    <title>Guess a number...</title>
    <link href="niceforms.css" rel="stylesheet" type="text/css" />
    <script language="javascript" type="text/javascript" src="niceforms.js"><!-- --></script>
  </h:head>
  <body>
    <h1>Guess a number...</h1>
      <h:form id="NumberGuessMain" styleClass="niceform">

        <div>
        <h:messages id="messages" globalOnly="true"/>
        <h:outputText id="Higher"
                          value="Higher!" 
                      rendered="#{numberGuess.randomNumber gt numberGuess.currentGuess}"/>
        <h:outputText id="Lower"
                          value="Lower!" 
                      rendered="#{numberGuess.randomNumber lt numberGuess.currentGuess}"/>
        </div>

        <div>
        I'm thinking of a number between <h:outputText id="Smallest" value="#{numberGuess.smallest}"/> and
        <h:outputText id="Biggest" value="#{numberGuess.biggest}"/>. You have
        <h:outputText id="RemainingGuesses" value="#{numberGuess.remainingGuesses}"/> guesses.
        </div>

        <div>
        Your guess:
        <h:inputText id="inputGuess" value="#{numberGuess.currentGuess}" required="true" size="3" 
                 rendered="#{(numberGuess.biggest-numberGuess.smallest) gt 20}">
          <f:validateLongRange maximum="#{numberGuess.biggest}" 
                               minimum="#{numberGuess.smallest}"/>
        </h:inputText>

        <h:selectOneMenu id="selectGuessMenu" value="#{numberGuess.currentGuess}" required="true" rendered="#{numberGuess.selectMenuRendered}">
          <s:selectItems id="PossibilitiesMenuItems" value="#{numberGuess.possibilities}" var="i" label="#{i}"/>
        </h:selectOneMenu>

        <h:selectOneRadio id="selectGuessRadio" value="#{numberGuess.currentGuess}" required="true" rendered="#{numberGuess.radioButtonRendered}">
          <s:selectItems id="PossibilitiesRadioItems" value="#{numberGuess.possibilities}" var="i" label="#{i}"/>
        </h:selectOneRadio>

        <h:commandButton id="GuessButton" value="Guess" action="guess"/>
        <s:button id="CheatButton" value="Cheat" action="cheat"/>
        <s:button id="GiveUpButton" value="Give up" action="giveup"/>
        </div>

        <div>
        <h:message id="message" for="inputGuess" style="color: red"/>
        </div>

      </h:form>
  </body>
</html>

<!-- 

   An example of pageflow in jPDL. This exemplifies the
   approach where action handlers are attached transitions
   and decision nodes, instead of view components. 
   An alternative approach would be to attach all action 
   handlers to view components, and let the jPDL define
   only the navigation rules.
   
-->

<pageflow-definition 
 xmlns="http://jboss.org/schema/seam/pageflow"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation=
     "http://jboss.org/schema/seam/pageflow http://jboss.org/schema/seam/pageflow-2.3.xsd"
 name="numberGuess">
   
   <start-page name="displayGuess" view-id="/numberGuess.xhtml">
      <redirect/>
      <transition name="guess" to="evaluateGuess">
         <action expression="#{numberGuess.guess}"/>
      </transition>
      <transition name="giveup" to="giveup"/>
      <transition name="cheat" to="cheat"/>
   </start-page>
   
   <decision name="evaluateGuess" expression="#{numberGuess.correctGuess}">
      <transition name="true" to="win"/>
      <transition name="false" to="evaluateRemainingGuesses"/>
   </decision>
   
   <decision name="evaluateRemainingGuesses" expression="#{numberGuess.lastGuess}">
      <transition name="true" to="lose"/>
      <transition name="false" to="displayGuess"/>
   </decision>
   
   <page name="giveup" view-id="/giveup.xhtml">
      <redirect/>
      <transition name="yes" to="lose"/>
      <transition name="no" to="displayGuess"/>
   </page>
   
   <process-state name="cheat">
      <sub-process name="cheat"/>
      <transition to="displayGuess"/>
   </process-state>

   <page name="win" view-id="/win.xhtml">
      
      <redirect/>
   <end-conversation/>
   </page>
   
   <page name="lose" view-id="/lose.xhtml">
      
      <redirect/>
   <end-conversation/>
   </page>
   
</pageflow-definition>

Answer 1

解决了 issue.Weld 正在扫描存档，这似乎导致 problem.The Weld Docs 说：您可以仅通过将以下内容添加到应用程序的 META-INF/jboss-all.xml 文件来为您的部署设置它。 jboss-all.xml 文件进入您的 META-INF 用于 ear 存档，并且可能进入 WEB-INF 用于 war 存档

<jboss xmlns="urn:jboss:1.0">
<weld xmlns="urn:jboss:weld:1.0" require-bean-descriptor="true"/>
</jboss>

对我有用。

Seam pageflow 示例 NumberGuess Not landing on the second page

Seam pageflow example NumberGuess Not landing on to the second page

seam

page-flow

jboss-seam

jpdl