【发布时间】：2014-05-28 17:36:56
【问题描述】：
如何在我的 JSF 中使用 session 属性（该属性是通过下面的第 3 方 HttpServlet 获得的），以便将其显示给用户并将其与表单中的其他值一起存储？
HttpServlet（通过第三方登录资源远程获取的对象）：
public class ServletLogar extends HttpServlet {
protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, Exception {
response.setContentType("text/html;charset=UTF-8");
String req = request.getParameter("pag");
IntranetAuth intranetAuth = new IntranetAuth();
if (!intranetAuth.isAuth(request, response)) {
response.sendRedirect(intranetAuth.urlLoginPage);
return;
}
UserVO userVO = intranetAuth.usuerVO;
if (intranetAuth.isAuth(request, response, req, req) {
BeanLogin beanLogin = new BeanLogin(); // a POJO
beanLogin.setxUserID(userVO.getUserID());
request.getSession().setAttribute("xUserID", userVO.getUserID());
response.sendRedirect(req);
}
//doGet and doPost ommited
}
JSF（表单）：
<!-- [...] -->
<h:form id="ViagensCreateForm">
<h:panelGroup id="display">
<p:panelGrid columns="2">
<p:outputLabel value="Type the Reason:" for="reason" />
<p:inputText id="reason" value="#{viagensController.selected.reason}" />
<p:outputLabel value="UserID (the sessionAttribute):" for="userID" />
<p:inputText id="userID" value="#{SessionScope.userID}" title="userID" />
</p:panelGrid>
<p:commandButton actionListener="#{viagensController.saveNew}" value="Save" />
</h:panelGroup>
</h:form>
Viagens 控制器：
@Named(value = "viagensController")
@ViewScoped
public class ViagensController extends AbstractController<Viagens> implements Serializable {//generics:passing JPA Entity class, where the 'reason' in JSF is defined
public ViagensController() {
super(Viagens.class);
}
}
AbstractController（用于上述JSF中的selected等方法）：
public abstract class AbstractController<T> {
@Inject
private AbstractFacade<T> ejbFacade;
private Class<T> itemClass;
private T selected;
private Collection<T> items;
private enum PersistAction {
CREATE,
DELETE,
UPDATE
}
public AbstractController() {
}
public AbstractController(Class<T> itemClass) {
this.itemClass = itemClass;
}
public T getSelected() {
return selected;
}
// Pass in the currently selected item
public void setSelected(T selected) {
this.selected = selected;
}
protected void setEmbeddableKeys() {
}
protected void initializeEmbeddableKey() {
}
public Collection<T> getItems() {
if (items == null) {
items = this.ejbFacade.findAll();
}
return items;
}
// Pass in collection of items
public void setItems(Collection<T> items) {
this.items = items;
}
// Apply changes to an existing item to the data layer.
public void save(ActionEvent event) {
String msg = ResourceBundle.getBundle("/viagensBundle").getString(itemClass.getSimpleName() + "Updated");
persist(PersistAction.UPDATE, msg);
}
// Store a new item in the data layer.
public void saveNew(ActionEvent event) {
String msg = ResourceBundle.getBundle("/viagensBundle").getString(itemClass.getSimpleName() + "Created");
persist(PersistAction.CREATE, msg);
if (!isValidationFailed()) {
items = null; // Invalidate list of items to trigger re-query.
}
}
public void delete(ActionEvent event) {/*implementations ommited*/ }
private void persist(PersistAction persistAction, String successMessage) {
if (selected != null) {
this.setEmbeddableKeys();
try {
if (persistAction != PersistAction.DELETE) {
this.ejbFacade.edit(selected);
} else {
this.ejbFacade.remove(selected);
}
JsfUtil.addSuccessMessage(successMessage);
} catch (EJBException ex) {
String msg = "";
Throwable cause = JsfUtil.getRootCause(ex.getCause());
if (cause != null) {
if (cause instanceof ConstraintViolationException) {
ConstraintViolationException excp = (ConstraintViolationException) cause;
for (ConstraintViolation s : excp.getConstraintViolations()) {
JsfUtil.addErrorMessage(s.getMessage());
}
} else {
msg = cause.getLocalizedMessage();
if (msg.length() > 0) {
JsfUtil.addErrorMessage(msg);
} else {
JsfUtil.addErrorMessage(ex, ResourceBundle.getBundle("/Bundle").getString("PersistenceErrorOccured"));
}
}
}
} catch (Exception ex) {
Logger.getLogger(this.getClass().getName()).log(Level.SEVERE, null, ex);
JsfUtil.addErrorMessage(ex, ResourceBundle.getBundle("/viagensBundle").getString("PersistenceErrorOccured"));
}
}
}
// Creates a new instance of an underlying entity and assigns it to Selected property.
public T prepareCreate(ActionEvent event) {
T newItem;
try {
newItem = itemClass.newInstance();
this.selected = newItem;
initializeEmbeddableKey();
return newItem;
} catch (InstantiationException ex) {
Logger.getLogger(this.getClass().getName()).log(Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
Logger.getLogger(this.getClass().getName()).log(Level.SEVERE, null, ex);
}
return null;
}
// Inform the user interface whether any validation error exist on a page.
public boolean isValidationFailed() {
return JsfUtil.isValidationFailed();
}
// Retrieve all messages as a String to be displayed on the page.
public String getComponentMessages(String clientComponent, String defaultMessage) {
return JsfUtil.getComponentMessages(clientComponent, defaultMessage);
}
}
ViagensFacade：
@Stateless
public class ViagensFacade extends AbstractFacade<Viagens> {
@PersistenceContext(unitName = "viagensPU")
private EntityManager em;
@Override
protected EntityManager getEntityManager() {
return em;
}
public ViagensFacade() {
super(Viagens.class);
}
}
抽象立面：
public abstract class AbstractFacade<T> {
private Class<T> entityClass;
public AbstractFacade(Class<T> entityClass) {
this.entityClass = entityClass;
}
protected abstract EntityManager getEntityManager();
public void create(T entity) {
getEntityManager().persist(entity);
}
public void edit(T entity) {
getEntityManager().merge(entity);
}
public void remove(T entity) {
getEntityManager().remove(getEntityManager().merge(entity));
}
public T find(Object id) {{ /*impl. ommited*/ }
public List<T> findAll() {{ /*impl. ommited*/ }
public List<T> findRange(int[] range) { /*impl. ommited*/ }
public int count() { /*impl. ommited*/ }
}
提前致谢。
更新代码：
package br.com.bb.upb.diage.viagens.beans;
import java.io.Serializable;
import javax.annotation.PostConstruct;
//import javax.faces.bean.SessionScoped; --> Thank you, John Ament !!
import javax.enterprise.context.SessionScoped;
import javax.faces.context.FacesContext;
import javax.inject.Named;
@Named(value = "userBean")
@SessionScoped
public class UserBean implements Serializable {
private bean_login myUser;
public bean_login getMyUser() {
return myUser;
}
public void setMyUser(bean_login myUser) {
this.myUser = myUser;
}
@PostConstruct
public void init() {
String uid = FacesContext.getCurrentInstance().getExternalContext().getSessionMap().get("xChave").toString();
myUser = new bean_login();
myUser.setxChave(uid);
System.out.print("from init:" + myUser.toString());
}
}
在我的 JSF 中：
<p:outputLabel value="UserID (the sessionAttribute):" for="userID" />
<p:inputText id="userID" value="#{userBean.myUser.xChave}" title="userID" />
<p:outputLabel value="Type the Reason:" for="reason" />
<p:inputText id="reason" value="#{viagensController.selected.reason}" />
错误：
WARNING: Local Exception Stack:
Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.5.0.v20130507-3faac2b): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: com.microsoft.sqlserver.jdbc.SQLServerException: Não é possível inserir o valor NULL na coluna 'Solicitante', tabela 'DIAGE.hpa.viagens'; a coluna não permite nulos. Falha em INSERT.
Error Code: 515
Call: INSERT INTO DIAGE.hpa.viagens (requisicao, DtFim, DtIni, DtReg, Motivo, Ok, Trecho, Missionario, Solicitante, UOR) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
bind => [10 parameters bound]
Query: InsertObjectQuery(br.com.bb.upb.diage.viagens.entities.Viagens[ requisicao=777 ])
at org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:331)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeDirectNoSelect(DatabaseAccessor.java:895)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeNoSelect(DatabaseAccessor.java:957)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:630)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:558)
at org.eclipse.persistence.internal.sessions.AbstractSession.basicExecuteCall(AbstractSession.java:1995)
at org.eclipse.persistence.sessions.server.ClientSession.executeCall(ClientSession.java:296)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:242)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:228)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.insertObject(DatasourceCallQueryMechanism.java:377)
at org.eclipse.persistence.internal.queries.StatementQueryMechanism.insertObject(StatementQueryMechanism.java:165)
at org.eclipse.persistence.internal.queries.StatementQueryMechanism.insertObject(StatementQueryMechanism.java:180)
at org.eclipse.persistence.internal.queries.DatabaseQueryMechanism.insertObjectForWrite(DatabaseQueryMechanism.java:485)
at org.eclipse.persistence.queries.InsertObjectQuery.executeCommit(InsertObjectQuery.java:80)
at org.eclipse.persistence.queries.InsertObjectQuery.executeCommitWithChangeSet(InsertObjectQuery.java:90)
at org.eclipse.persistence.internal.queries.DatabaseQueryMechanism.executeWriteWithChangeSet(DatabaseQueryMechanism.java:300)
at org.eclipse.persistence.queries.WriteObjectQuery.executeDatabaseQuery(WriteObjectQuery.java:58)
at org.eclipse.persistence.queries.DatabaseQuery.execute(DatabaseQuery.java:899)
at org.eclipse.persistence.queries.DatabaseQuery.executeInUnitOfWork(DatabaseQuery.java:798)
at org.eclipse.persistence.queries.ObjectLevelModifyQuery.executeInUnitOfWorkObjectLevelModifyQuery(ObjectLevelModifyQuery.java:108)
at org.eclipse.persistence.queries.ObjectLevelModifyQuery.executeInUnitOfWork(ObjectLevelModifyQuery.java:85)
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2894)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1797)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1779)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1730)
at org.eclipse.persistence.internal.sessions.CommitManager.commitNewObjectsForClassWithChangeSet(CommitManager.java:226)
at org.eclipse.persistence.internal.sessions.CommitManager.commitAllObjectsWithChangeSet(CommitManager.java:125)
at org.eclipse.persistence.internal.sessions.AbstractSession.writeAllObjectsWithChangeSet(AbstractSession.java:4200)
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitToDatabase(UnitOfWorkImpl.java:1439)
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitToDatabaseWithChangeSet(UnitOfWorkImpl.java:1529)
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.issueSQLbeforeCompletion(UnitOfWorkImpl.java:3166)
at org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.issueSQLbeforeCompletion(RepeatableWriteUnitOfWork.java:352)
at org.eclipse.persistence.transaction.AbstractSynchronizationListener.beforeCompletion(AbstractSynchronizationListener.java:158)
at org.eclipse.persistence.transaction.JTASynchronizationListener.beforeCompletion(JTASynchronizationListener.java:68)
at com.sun.enterprise.transaction.JavaEETransactionImpl.commit(JavaEETransactionImpl.java:452)
at com.sun.enterprise.transaction.JavaEETransactionManagerSimplified.commit(JavaEETransactionManagerSimplified.java:854)
at com.sun.ejb.containers.EJBContainerTransactionManager.completeNewTx(EJBContainerTransactionManager.java:719)
at com.sun.ejb.containers.EJBContainerTransactionManager.postInvokeTx(EJBContainerTransactionManager.java:503)
at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:4475)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2009)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1979)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:220)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88)
at com.sun.proxy.$Proxy576.edit(Unknown Source)
at br.com.bb.upb.diage.viagens.facades.__EJB31_Generated__ViagensFacade__Intf____Bean__.edit(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.jboss.weld.util.reflection.Reflections.invokeAndUnwrap(Reflections.java:396)
at org.jboss.weld.bean.proxy.EnterpriseBeanProxyMethodHandler.invoke(EnterpriseBeanProxyMethodHandler.java:108)
at org.jboss.weld.bean.proxy.EnterpriseTargetBeanInstance.invoke(EnterpriseTargetBeanInstance.java:56)
at org.jboss.weld.bean.proxy.InjectionPointPropagatingEnterpriseTargetBeanInstance.invoke(InjectionPointPropagatingEnterpriseTargetBeanInstance.java:63)
at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:101)
at br.com.bb.upb.diage.viagens.facades.ViagensFacade$Proxy$_$$_Weld$EnterpriseProxy$.edit(Unknown Source)
at br.com.bb.upb.diage.viagens.beans.AbstractController.persist(AbstractController.java:134)
at br.com.bb.upb.diage.viagens.beans.AbstractController.saveNew(AbstractController.java:109)
at br.com.bb.upb.diage.viagens.beans.ViagensController$Proxy$_$$_WeldClientProxy.saveNew(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.sun.el.parser.AstValue.invoke(AstValue.java:275)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)
at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)
at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
at javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:147)
at javax.faces.event.ActionEvent.processListener(ActionEvent.java:88)
at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:818)
at javax.faces.component.UICommand.broadcast(UICommand.java:300)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
at java.lang.Thread.run(Thread.java:724)
WARNING: DTX5014: Caught exception in beforeCompletion() callback:
javax.persistence.PersistenceException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.5.0.v20130507-3faac2b): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: com.microsoft.sqlserver.jdbc.SQLServerException: Não é possível inserir o valor NULL na coluna 'Solicitante', tabela 'DIAGE.hpa.viagens'; a coluna não permite nulos. Falha em INSERT.
Error Code: 515
Call: INSERT INTO DIAGE.hpa.viagens (requisicao, DtFim, DtIni, DtReg, Motivo, Ok, Trecho, Missionario, Solicitante, UOR) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
bind => [10 parameters bound]
Query: InsertObjectQuery(br.com.bb.upb.diage.viagens.entities.Viagens[ requisicao=777 ])
at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl$1.handleException(EntityManagerSetupImpl.java:692)
at org.eclipse.persistence.transaction.AbstractSynchronizationListener.handleException(AbstractSynchronizationListener.java:275)
at org.eclipse.persistence.transaction.AbstractSynchronizationListener.beforeCompletion(AbstractSynchronizationListener.java:170)
WARNING: EJB5184:A system exception occurred during an invocation on EJB ViagensFacade, method: public void br.com.bb.upb.diage.viagens.facades.AbstractFacade.edit(java.lang.Object)
WARNING: javax.ejb.EJBException: Transaction aborted
at com.sun.ejb.containers.EJBContainerTransactionManager.completeNewTx(EJBContainerTransactionManager.java:725)
at com.sun.ejb.containers.EJBContainerTransactionManager.postInvokeTx(EJBContainerTransactionManager.java:503)
at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:4475)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2009)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1979)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:220)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88)
at com.sun.proxy.$Proxy576.edit(Unknown Source)
at br.com.bb.upb.diage.viagens.facades.__EJB31_Generated__ViagensFacade__Intf____Bean__.edit(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.jboss.weld.util.reflection.Reflections.invokeAndUnwrap(Reflections.java:396)
at org.jboss.weld.bean.proxy.EnterpriseBeanProxyMethodHandler.invoke(EnterpriseBeanProxyMethodHandler.java:108)
at org.jboss.weld.bean.proxy.EnterpriseTargetBeanInstance.invoke(EnterpriseTargetBeanInstance.java:56)
at org.jboss.weld.bean.proxy.InjectionPointPropagatingEnterpriseTargetBeanInstance.invoke(InjectionPointPropagatingEnterpriseTargetBeanInstance.java:63)
at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:101)
at br.com.bb.upb.diage.viagens.facades.ViagensFacade$Proxy$_$$_Weld$EnterpriseProxy$.edit(Unknown Source)
at br.com.bb.upb.diage.viagens.beans.AbstractController.persist(AbstractController.java:134)
at br.com.bb.upb.diage.viagens.beans.AbstractController.saveNew(AbstractController.java:109)
at br.com.bb.upb.diage.viagens.beans.ViagensController$Proxy$_$$_WeldClientProxy.saveNew(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.sun.el.parser.AstValue.invoke(AstValue.java:275)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)
at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)
at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
at javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:147)
at javax.faces.event.ActionEvent.processListener(ActionEvent.java:88)
at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:818)
at javax.faces.component.UICommand.broadcast(UICommand.java:300)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
at java.lang.Thread.run(Thread.java:724)
Caused by: javax.transaction.RollbackException: Transaction marked for rollback.
at com.sun.enterprise.transaction.JavaEETransactionImpl.commit(JavaEETransactionImpl.java:490)
at com.sun.enterprise.transaction.JavaEETransactionManagerSimplified.commit(JavaEETransactionManagerSimplified.java:854)
at com.sun.ejb.containers.EJBContainerTransactionManager.completeNewTx(EJBContainerTransactionManager.java:719)
... 67 more
Caused by: javax.persistence.PersistenceException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.5.0.v20130507-3faac2b): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: com.microsoft.sqlserver.jdbc.SQLServerException: Não é possível inserir o valor NULL na coluna 'Solicitante', tabela 'DIAGE.hpa.viagens'; a coluna não permite nulos. Falha em INSERT.
Error Code: 515
Call: INSERT INTO DIAGE.hpa.viagens (requisicao, DtFim, DtIni, DtReg, Motivo, Ok, Trecho, Missionario, Solicitante, UOR) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
bind => [10 parameters bound]
Query: InsertObjectQuery(br.com.bb.upb.diage.viagens.entities.Viagens[ requisicao=777 ])
at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl$1.handleException(EntityManagerSetupImpl.java:692)
at org.eclipse.persistence.transaction.AbstractSynchronizationListener.handleException(AbstractSynchronizationListener.java:275)
at org.eclipse.persistence.transaction.AbstractSynchronizationListener.beforeCompletion(AbstractSynchronizationListener.java:170)
at org.eclipse.persistence.transaction.JTASynchronizationListener.beforeCompletion(JTASynchronizationListener.java:68)
at com.sun.enterprise.transaction.JavaEETransactionImpl.commit(JavaEETransactionImpl.java:452)
... 69 more
【问题讨论】：
-
您使用什么 j2ee 版本？您的 UserBean 是否已创建？
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嗨，jjd。所以，我猜 UserBean 是实例化的，因为它是通过注释声明的 - 我忘记了 JSR 的较新的通用 bean 管理机制受我正在使用的 JEE7+Glassfish 4 支持，对吗？完整的 (Netbeans) 项目可在 github.com/f6750699/navApp.git 获得。谢谢。
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如果被声明了，并不意味着它被实例化了。你调试过吗？有些情况可能并非如此。例如 CDI 不工作。
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我读到 ManagedBean 是按需实例化的，而不是之前实例化的，所以如果它从未在显示的 View 的 xhtml 中引用，它就不会被实例化。如果非 JSF 代码需要 bean，它必须手动构造和初始化它，然后将它放在 HttpSession 对象中。然后 JSF 代码将在 HttpSession 中看到它，并且不会尝试重新实例化它，并且 JSF 和非 JSF 代码可以很高兴地共享它，但要遵守通常的线程安全考虑。因此，我认为只需在 view.xhtml 中引用 #{userBean.userID} 即可实例化 MB。你怎么看？谢谢。
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嗨，jjd。正如下面的 John Ament 所示，问题与导入包问题有关，该问题已得到解决。但是现在，问题涉及将用户会话属性与用户通知的其他值一起存储在数据库中。 （请参阅上面的更新代码）。欢迎您的帮助。谢谢。
标签： jsf session servlets jpa ejb