我是第一次使用EJB和JSF，但无法解决此问题：
20:23:12,457 Grave [javax.enterprise.resource.webcontainer.jsf.application] (http-localhost-127.0.0.1-8081-2) com.ericsantanna.jobFC.dao.DAOFactoryRemote from [Module "com.sun.jsf-impl:main" from local module loader @439db2b2 (roots: C:\jboss-as-7.1.1.Final\modules)]: java.lang.ClassNotFoundException: com.ericsantanna.jobFC.dao.DAOFactoryRemote from [Module "com.sun.jsf-impl:main" from local module loader @439db2b2 (roots: C:\jboss-as-7.1.1.Final\modules)]
当我执行selectOneMenu或commandButton单击之类的操作时，就会得到此提示。
DAOFactory.class
@Singleton
@Remote(DAOFactoryRemote.class)
public class DAOFactory implements DAOFactoryRemote {
private static final long serialVersionUID = 6030538139815885895L;
@PersistenceContext
private EntityManager entityManager;
@EJB
private JobDAORemote jobDAORemote;
/**
* Default constructor.
*/
public DAOFactory() {
// TODO Auto-generated constructor stub
}
@Override
public JobDAORemote getJobDAO() {
JobDAO jobDAO = (JobDAO) jobDAORemote;
jobDAO.setEntityManager(entityManager);
return jobDAO;
}
JobDAO.class
@Stateless
@Remote(JobDAORemote.class)
public class JobDAO implements JobDAORemote {
private static final long serialVersionUID = -5483992924812255349L;
private EntityManager entityManager;
/**
* Default constructor.
*/
public JobDAO() {
// TODO Auto-generated constructor stub
}
@Override
public void insert(Job t) {
entityManager.persist(t);
}
@Override
public Job findById(Class<Job> classe, Long id) {
return entityManager.getReference(classe, id);
}
@Override
public Job findByName(Class<Job> clazz, String name) {
return entityManager
.createQuery("SELECT job FROM " + clazz.getName() + " job WHERE job.nome = :nome"
, Job.class)
.setParameter("name", name)
.getSingleResult();
}
...
TriggerFormBean.class
@ManagedBean
@ViewScoped
@Stateless
public class TriggerFormBean implements Serializable {
private static final long serialVersionUID = -3293560384606586480L;
@EJB
private DAOFactoryRemote daoFactory;
@EJB
private TriggerManagerRemote triggerManagerRemote;
...
triggerForm.xhtml（有问题的部分）
</p:layoutUnit>
<p:layoutUnit id="eastConditionPanel" position="center" size="50%">
<p:panel header="Conditions to Release" style="width:97%;height:97%;">
<h:panelGrid columns="2" cellpadding="3">
<h:outputLabel value="Condition Name:" for="conditionName" />
<p:inputText id="conditionName" value="#{triggerFormBean.newCondition.name}" />
</h:panelGrid>
<p:commandButton value="Add Condition" update="conditionsToReleaseList" id="addConditionToRelease"
actionListener="#{triggerFormBean.addNewCondition}" />
<p:orderList
id="conditionsToReleaseList"
value="#{triggerFormBean.trigger.conditionsToRelease}"
var="condition"
controlsLocation="none"
itemLabel="#{condition.name}"
itemValue="#{condition}"
iconOnly="true"
style="width:97%;heigth:97%;"/>
</p:panel>
</p:layoutUnit>
在TriggerFormBean.class中，如果注释daoFactory，则我们会使用TriggerManagerRemote获得相同的异常，均使用@EJB进行注释。
我不了解我的DAOFactory与“模块com.sun.jsf-impl：main”之间的关系...
当我单击commandButton时发生异常，它仅从inputText获取文本，设置为Condition实例，并添加到由orderList映射的ArrayList。
设置：JBoss 7.1，Primefaces 3.4
谢谢。
最佳答案
我实际上也遇到了同样的麻烦。
奇怪地降级JBoss中的模块为我解决了这个问题：
<module xmlns="urn:jboss:module:1.1" name="javax.faces.api">
<dependencies>
<module name="javax.el.api" export="true"/>
<module name="javax.servlet.api" export="true"/>
<module name="javax.servlet.jsp.api" export="true"/>
<module name="javax.servlet.jstl.api" export="true"/>
<module name="javax.validation.api" export="true"/>
</dependencies>
<resources>
<resource-root path="jboss-jsf-api_2.1_spec-2.0.1.Final.jar"/>
<!-- Insert resources here -->
</resources>
代替 ：
<module xmlns="urn:jboss:module:1.1" name="javax.faces.api">
<dependencies>
<module name="javax.el.api" export="true"/>
<module name="javax.servlet.api" export="true"/>
<module name="javax.servlet.jsp.api" export="true"/>
<module name="javax.servlet.jstl.api" export="true"/>
<module name="javax.validation.api" export="true"/>
</dependencies>
<resources>
<resource-root path="jboss-jsf-api_2.1_spec-2.1.21.Final.jar"/>
<!-- Insert resources here -->
</resources>
区别在于所使用的版本。
我无法解释为什么。
希望这可以帮助