我尝试@Stateless在 POJO 中查找 bean，该 bean 与 bean 所在的包位于同一包中。当我在@ManagedBean控制器类中使用 bean 时，它不为空，并且可以执行 CRUD 操作。这是在 ArticlesBundle.java 中查找的代码：
public class ArticlesBundle extends ResourceBundle{
protected static final String BASE_NAME = "ArticlesLcl.findForLocale";
private Map<String,String> messages = new HashMap<>();
private Locale locale = FacesContext.getCurrentInstance().getViewRoot().getLocale();
protected final Control DB_CONTROL = new DBControl();
public ArticlesBundle(){
setParent(ResourceBundle.getBundle(BASE_NAME, FacesContext.getCurrentInstance().getViewRoot().getLocale(), DB_CONTROL));
}
protected ArticlesBundle(Locale locale){
setParent(ResourceBundle.getBundle(BASE_NAME, locale, DB_CONTROL));
}
public ArticlesBundle(Map<String,String> messages){
this.messages = messages;
}
@Override
protected Object handleGetObject(String key){
return messages != null ? messages.get(key) : parent.getObject(key);
}
@Override
public Enumeration<String> getKeys(){
return parent.getKeys();
}
protected class DBControl extends Control{
@Override
public ResourceBundle newBundle
(String baseName, Locale locale, String format, ClassLoader loader, boolean reload)
throws IllegalAccessException, InstantiationException, IOException
{
String language = locale.getLanguage();
Map<String,String> messages = getArticless(locale);
System.out.println("getArticles("+language+") = "+getArticles(locale));
return new ArticlesBundle(messages);
}
public Map<String,String> getArticles(Locale locale){
String language = locale.getLanguage();
try {
Context ctx = new InitialContext();
ArticlesLclFacade arBean = (ArticlesLclFacade) ctx.lookup("java:gesht/ArticlesLclFacade");
List<ArticlesLcl> articles = arBean.getArticles(language);
for(Iterator<ArticlesLcl> it = articles.iterator(); it.hasNext();){
ArticlesLcl article = it.next();
messages.put(article.getArId().getArId().toString(), article.getArTitle());
}
} catch (NamingException ex) {
Logger.getLogger(test.class.getName()).log(Level.SEVERE, null, ex);
}
return messages;
}
}
}
在文章外观中：
@Stateless
public class ArticlesFacade extends AbstractFacade<ArticlesLcl> {
@PersistenceContext(unitName = "gtestPU")
private EntityManager em;
@Override
protected EntityManager getEntityManager() {
return em;
}
public ArticlesFacade() {
super(ArticlesLcl.class);
}
public List<ArticlesLcl> getArticless(String language){
Query q = em.createNamedQuery("ArticlesLcl.findForLocale", ArticlesLcl.class);
q.setParameter("lang", language);
return q.getResultList();
}
}
Faces-Config.xml
<resource-bundle>
<base-name>com.gesht.bundles.ArticlesBundle</base-name>
<var>article</var>
</resource-bundle>
它抛出以下异常：
SEVERE: javax.naming.NamingException: Lookup failed for 'java:gtest/ArticlesLclFacade' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.factory.url.pkgs=com.sun.enterprise.naming} [Root exception is javax.naming.NameNotFoundException: No object bound to name java:gtest/ArticlesLclFacade]
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:518)
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:455)
at javax.naming.InitialContext.lookup(InitialContext.java:411)
at javax.naming.InitialContext.lookup(InitialContext.java:411)
at java.util.ResourceBundle.loadBundle(ResourceBundle.java:1436)
at java.util.ResourceBundle.findBundle(ResourceBundle.java:1400)
at java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1296)
at java.util.ResourceBundle.getBundle(ResourceBundle.java:841)
at com.gtest.bundles.test.<init>(test.java:50)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
at java.lang.Class.newInstance0(Class.java:372)
at java.lang.Class.newInstance(Class.java:325)
at java.util.ResourceBundle$Control.newBundle(ResourceBundle.java:2571)
at java.util.ResourceBundle.loadBundle(ResourceBundle.java:1436)
at java.util.ResourceBundle.findBundle(ResourceBundle.java:1400)
at java.util.ResourceBundle.findBundle(ResourceBundle.java:1354)
at java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1296)
at java.util.ResourceBundle.getBundle(ResourceBundle.java:1028)
at com.sun.faces.application.ApplicationResourceBundle.getResourceBundle(ApplicationResourceBundle.java:124)
at com.sun.faces.application.ApplicationAssociate.getResourceBundle(ApplicationAssociate.java:608)
at com.sun.faces.application.ApplicationImpl.getResourceBundle(ApplicationImpl.java:700)
at javax.faces.application.ApplicationWrapper.getResourceBundle(ApplicationWrapper.java:526)
at com.sun.faces.el.FacesResourceBundleELResolver.getValue(FacesResourceBundleELResolver.java:83)
at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
at com.sun.el.parser.AstIdentifier.getValue(AstIdentifier.java:103)
at com.sun.el.parser.AstValue.getValue(AstValue.java:179)
at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:224)
at org.jboss.weld.el.WeldValueExpression.getValue(WeldValueExpression.java:50)
at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)
at javax.faces.component.UIOutput.getValue(UIOutput.java:169)
at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:205)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:355)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:164)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1764)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1760)
at org.primefaces.component.panelgrid.PanelGridRenderer.encodeDynamicBody(PanelGridRenderer.java:92)
at org.primefaces.component.panelgrid.PanelGridRenderer.encodeBody(PanelGridRenderer.java:60)
at org.primefaces.component.panelgrid.PanelGridRenderer.encodeEnd(PanelGridRenderer.java:49)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
at org.primefaces.renderkit.CoreRenderer.renderChild(CoreRenderer.java:61)
at org.primefaces.renderkit.CoreRenderer.renderChildren(CoreRenderer.java:45)
at org.primefaces.renderkit.CoreRenderer.renderChild(CoreRenderer.java:59)
at org.primefaces.renderkit.CoreRenderer.renderChildren(CoreRenderer.java:45)
at org.primefaces.component.datagrid.DataGridRenderer.encodeTable(DataGridRenderer.java:156)
at org.primefaces.component.datagrid.DataGridRenderer.encodeMarkup(DataGridRenderer.java:91)
at org.primefaces.component.datagrid.DataGridRenderer.encodeEnd(DataGridRenderer.java:53)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1764)
at javax.faces.render.Renderer.encodeChildren(Renderer.java:168)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1757)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1760)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1760)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:402)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:288)
at org.ocpsoft.rewrite.faces.RewriteViewHandler.renderView(RewriteViewHandler.java:186)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:288)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.ocpsoft.rewrite.servlet.RewriteFilter.doFilter(RewriteFilter.java:191)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383)
at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:229)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:722)
Caused by: javax.naming.NameNotFoundException: No object bound to name java:gtest/ArticlesLclFacade
at com.sun.enterprise.naming.impl.GlassfishNamingManagerImpl.lookup(GlassfishNamingManagerImpl.java:772)
at com.sun.enterprise.naming.impl.GlassfishNamingManagerImpl.lookup(GlassfishNamingManagerImpl.java:744)
at com.sun.enterprise.naming.impl.JavaURLContext.lookup(JavaURLContext.java:177)
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:498)
... 108 more
我使用 Glassfish 服务器 3+