EJB3.0 SESSIONBEAN WORK WITH HIBERNATE EXCEPTION

[lmc_paul]

DETAIL LIKE THIS:
public class ArticleEJB extends HibernateBase implements InfoArticleUtil, ArticleEJBLocal,
ArticleEJBRemote {

public List getAllArticle() {
List list = null;
try{
Begin();
list = session.createQuery("from InfoArticle").list();
if(list==null) list = new ArrayList();
session.flush();
}catch(Exception e){
e.printStackTrace();
}finally{
Close();
}
return null;
}

}

public class HibernateBase {
private static SessionFactory sf = null;
public Session session = null;
public void Begin(){
//在这里�以根��置文件�使用，如果是使用JDBC-》openSession(),如果使用JTA使用getCurrentSession();
if(sf==null) Init();
session = sf.openSession();
}
public void Init(){
try{
InitialContext ctx = new InitialContext();
Object obj = ctx.lookup("hibernateJNDI");
System.out.println("hibernateJNDI==============="+obj);
if(sf==null) sf = (SessionFactory)obj;
}catch(Exception e){
e.printStackTrace();
}
}
public void Close(){
if(session!=null&&session.isOpen()) session.close();
}
}

[lmc_paul]

IN THE CONTEXTLISTENER LIKE THIS :

public class StartUpListener implements ServletContextListener{

public void contextDestroyed(ServletContextEvent arg0) {

}
public void contextInitialized(ServletContextEvent arg0) {
try {
InitialContext ctx = new InitialContext();
HibernateUtil h = new HibernateUtil();
h.Init();
SessionFactory newsf = h.sf;
SessionFactory oldsf = (SessionFactory)ctx.lookup("hibernateJNDI");
System.out.println("bind hibernateJNDI~~~~~~~~~~~~~~~~~~~~~~~`");
if(oldsf!=null) ctx.rebind("hibernateJNDI", newsf);
else ctx.bind("hibernateJNDI", newsf);

} catch (NamingException e) {
e.printStackTrace();
}
}
}

[lmc_paul]

HibernateUtil LIKE THIS :

public class HibernateUtil {
public static SessionFactory sf = null;
public void Init(){
if(sf == null){
sf = new Configuration().configure().buildSessionFactory();
}
}

}

WEB.XML LIKE THIS:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">


<listener-class>sysListener.StartUpListener</listener-class>

<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

[lmc_paul]

WHEN THE WEB DEMO RUNNING THROW EXCEPTION LIKE THIS :

21:59:09,113 INFO [STDOUT] 21:59:09,113 INFO [Environment] Hibernate 3.1.3
21:59:09,123 INFO [STDOUT] 21:59:09,123 INFO [Environment] hibernate.properties not found
21:59:09,133 INFO [STDOUT] 21:59:09,133 INFO [Environment] using CGLIB reflection optimizer
21:59:09,133 INFO [STDOUT] 21:59:09,133 INFO [Environment] using JDK 1.4 java.sql.Timestamp handling
21:59:09,384 INFO [STDOUT] 21:59:09,384 INFO [Configuration] configuring from resource: /hibernate.cfg.xml
21:59:09,384 INFO [STDOUT] 21:59:09,384 INFO [Configuration] Configuration resource: /hibernate.cfg.xml
21:59:09,824 INFO [STDOUT] 21:59:09,814 INFO [Configuration] Reading mappings from resource: domain/InfoArti
cle.hbm.xml
21:59:10,946 INFO [STDOUT] 21:59:10,946 INFO [HbmBinder] Mapping class: domain.InfoArticle -> info_article
21:59:11,026 INFO [STDOUT] 21:59:11,026 INFO [Configuration] Reading mappings from resource: domain/ChanArti
Relation.hbm.xml
21:59:11,036 INFO [STDOUT] 21:59:11,036 INFO [HbmBinder] Mapping class: domain.ChanArtiRelation -> chan_arti
_relation
21:59:11,246 INFO [STDOUT] 21:59:11,246 INFO [Configuration] Reading mappings from resource: domain/InfoChan
nel.hbm.xml
21:59:11,276 INFO [STDOUT] 21:59:11,276 INFO [HbmBinder] Mapping class: domain.InfoChannel -> info_channel
21:59:11,276 INFO [STDOUT] 21:59:11,276 INFO [Configuration] Configured SessionFactory: null
21:59:11,657 INFO [STDOUT] 21:59:11,657 INFO [HbmBinder] Mapping collection: domain.InfoArticle.chanArtiRela
tions -> chan_arti_relation
21:59:11,657 INFO [STDOUT] 21:59:11,657 INFO [HbmBinder] Mapping collection: domain.InfoChannel.chanArtiRela
tions -> chan_arti_relation
21:59:11,687 INFO [STDOUT] 21:59:11,687 INFO [NamingHelper] JNDI InitialContext properties:{}
21:59:11,687 INFO [STDOUT] 21:59:11,687 INFO [DatasourceConnectionProvider] Using datasource: java:/moreflur
ish
21:59:11,687 INFO [STDOUT] 21:59:11,687 INFO [SettingsFactory] RDBMS: MySQL, version: 5.0.15-nt
21:59:11,687 INFO [STDOUT] 21:59:11,687 INFO [SettingsFactory] JDBC driver: MySQL-AB JDBC Driver, version: m
ysql-connector-java-5.0.8 ( Revision: ${svn.Revision} )
21:59:11,777 INFO [STDOUT] 21:59:11,777 INFO [Dialect] Using dialect: org.hibernate.dialect.MySQLDialect
21:59:11,797 INFO [STDOUT] 21:59:11,797 INFO [TransactionFactoryFactory] Transaction strategy: org.hibernate
.transaction.JTATransactionFactory
21:59:11,807 INFO [STDOUT] 21:59:11,807 INFO [NamingHelper] JNDI InitialContext properties:{}
21:59:11,807 INFO [STDOUT] 21:59:11,807 INFO [TransactionManagerLookupFactory] No TransactionManagerLookup c
onfigured (in JTA environment, use of read-write or transactional second-level cache is not recommended)
21:59:11,807 INFO [STDOUT] 21:59:11,807 INFO [TransactionManagerLookupFactory] No TransactionManagerLookup c
onfigured (in JTA environment, use of read-write or transactional second-level cache is not recommended)
21:59:11,817 INFO [STDOUT] 21:59:11,807 INFO [SettingsFactory] Automatic flush during beforeCompletion(): di
sabled
21:59:11,817 INFO [STDOUT] 21:59:11,817 INFO [SettingsFactory] Automatic session close at end of transaction
: disabled
21:59:11,817 INFO [STDOUT] 21:59:11,817 INFO [SettingsFactory] JDBC batch size: 15
21:59:11,837 INFO [STDOUT] 21:59:11,837 INFO [SettingsFactory] JDBC batch updates for versioned data: disabl
ed
21:59:11,847 INFO [STDOUT] 21:59:11,837 INFO [SettingsFactory] Scrollable result sets: enabled
21:59:11,847 INFO [STDOUT] 21:59:11,847 INFO [SettingsFactory] JDBC3 getGeneratedKeys(): enabled
21:59:11,847 INFO [STDOUT] 21:59:11,847 INFO [SettingsFactory] Connection release mode: auto
21:59:11,847 INFO [STDOUT] 21:59:11,847 INFO [SettingsFactory] Maximum outer join fetch depth: 2
21:59:11,847 INFO [STDOUT] 21:59:11,847 INFO [SettingsFactory] Default batch fetch size: 1
21:59:11,847 INFO [STDOUT] 21:59:11,847 INFO [SettingsFactory] Generate SQL with comments: disabled
21:59:11,857 INFO [STDOUT] 21:59:11,857 INFO [SettingsFactory] Order SQL updates by primary key: disabled
21:59:11,857 INFO [STDOUT] 21:59:11,857 INFO [SettingsFactory] Query translator: org.hibernate.hql.ast.ASTQu
eryTranslatorFactory
21:59:11,867 INFO [STDOUT] 21:59:11,867 INFO [ASTQueryTranslatorFactory] Using ASTQueryTranslatorFactory
21:59:11,867 INFO [STDOUT] 21:59:11,867 INFO [SettingsFactory] Query language substitutions: {}
21:59:11,867 INFO [STDOUT] 21:59:11,867 INFO [SettingsFactory] Second-level cache: enabled
21:59:11,867 INFO [STDOUT] 21:59:11,867 INFO [SettingsFactory] Query cache: disabled
21:59:11,867 INFO [STDOUT] 21:59:11,867 INFO [SettingsFactory] Cache provider: org.hibernate.cache.Hashtable
CacheProvider
21:59:11,887 INFO [STDOUT] 21:59:11,877 INFO [SettingsFactory] Optimize cache for minimal puts: disabled
21:59:11,887 INFO [STDOUT] 21:59:11,887 INFO [SettingsFactory] Structured second-level cache entries: disabl
ed
21:59:11,907 INFO [STDOUT] 21:59:11,907 INFO [SettingsFactory] Echoing all SQL to stdout
21:59:11,917 INFO [STDOUT] 21:59:11,917 INFO [SettingsFactory] Statistics: disabled
21:59:11,917 INFO [STDOUT] 21:59:11,917 INFO [SettingsFactory] Deleted entity synthetic identifier rollback:
disabled
21:59:11,917 INFO [STDOUT] 21:59:11,917 INFO [SettingsFactory] Default entity-mode: pojo
21:59:13,860 INFO [STDOUT] 21:59:13,860 INFO [SessionFactoryImpl] building session factory
21:59:16,494 INFO [STDOUT] 21:59:16,494 INFO [SessionFactoryObjectFactory] Factory name: hibernateJNDI
21:59:16,494 INFO [STDOUT] 21:59:16,494 INFO [NamingHelper] JNDI InitialContext properties:{}
21:59:16,494 INFO [STDOUT] 21:59:16,494 INFO [SessionFactoryObjectFactory] Bound factory to JNDI name: hiber
nateJNDI
21:59:16,494 INFO [STDOUT] 21:59:16,494 WARN [SessionFactoryObjectFactory] InitialContext did not implement
EventContext
21:59:16,494 INFO [STDOUT] bind hibernateJNDI~~~~~~~~~~~~~~~~~~~~~~~`
21:59:24,265 INFO [STDOUT] hibernateJNDI===============org.hibernate.impl.SessionFactoryImpl@1c9c556
21:59:24,265 ERROR [STDERR] java.lang.ClassCastException: org.hibernate.impl.SessionFactoryImpl
21:59:24,265 ERROR [STDERR] at hibernate.HibernateBase.Init(HibernateBase.java:21)
21:59:24,265 ERROR [STDERR] at hibernate.HibernateBase.Begin(HibernateBase.java:13)
21:59:24,265 ERROR [STDERR] at ejb3.services.Article.ArticleEJB.getAllArticle(ArticleEJB.java:18)
21:59:24,265 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
21:59:24,265 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:3
9)
21:59:24,265 ERROR [STDERR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp
l.java:25)
21:59:24,265 ERROR [STDERR] at java.lang.reflect.Method.invoke(Method.java:585)
21:59:24,265 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:1
12)
21:59:24,275 ERROR [STDERR] at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextI
mpl.java:166)
21:59:24,275 ERROR [STDERR] at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3Intercept
orsInterceptor.java:63)
21:59:24,275 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:1
01)
21:59:24,275 ERROR [STDERR] at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(Tran
sactionScopedEntityManagerInterceptor.java:54)
21:59:24,275 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:1
01)
21:59:24,315 ERROR [STDERR] at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterce
ptor.java:47)
21:59:24,315 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:1
01)
21:59:24,315 ERROR [STDERR] at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79)
21:59:24,315 ERROR [STDERR] at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191)
21:59:24,315 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:1
01)
21:59:24,315 ERROR [STDERR] at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationIntercept
or.java:95)
21:59:24,315 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:1
01)
21:59:24,315 ERROR [STDERR] at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInsta
nceInterceptor.java:62)
21:59:24,315 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:1
01)
21:59:24,315 ERROR [STDERR] at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationI
nterceptor.java:77)
21:59:24,315 ERROR [STDERR] at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3Authentica
tionInterceptor.java:110)
21:59:24,315 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:1
01)
21:59:24,315 ERROR [STDERR] at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.j
ava:46)
21:59:24,315 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:1
01)
21:59:24,315 ERROR [STDERR] at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInte
rceptor.java:106)
21:59:24,315 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:1
01)
21:59:24,315 ERROR [STDERR] at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.
java:240)
21:59:24,315 ERROR [STDERR] at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.
java:210)
21:59:24,315 ERROR [STDERR] at org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.jav
a:84)
21:59:24,315 ERROR [STDERR] at $Proxy66.getAllArticle(Unknown Source)
21:59:24,345 ERROR [STDERR] at EJBClient.ClientTest.getAllArticle(ClientTest.java:18)
21:59:24,345 ERROR [STDERR] at org.apache.jsp.index_jsp._jspService(index_jsp.java:88)
21:59:24,345 ERROR [STDERR] at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
21:59:24,345 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
21:59:24,345 ERROR [STDERR] at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:
373)
21:59:24,345 ERROR [STDERR] at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:336)
21:59:24,345 ERROR [STDERR] at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
21:59:24,355 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
21:59:24,355 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
nFilterChain.java:290)
21:59:24,355 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
hain.java:206)
21:59:24,355 ERROR [STDERR] at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.j
ava:96)
21:59:24,355 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
nFilterChain.java:235)
21:59:24,355 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
hain.java:206)
21:59:24,355 ERROR [STDERR] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.j
ava:230)
21:59:24,355 ERROR [STDERR] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.j
ava:175)
21:59:24,355 ERROR [STDERR] at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssoc
iationValve.java:179)
21:59:24,355 ERROR [STDERR] at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java
:84)
21:59:24,355 ERROR [STDERR] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:12
7)
21:59:24,355 ERROR [STDERR] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:10
2)
21:59:24,355 ERROR [STDERR] at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnect
ionValve.java:157)
21:59:24,355 ERROR [STDERR] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.jav
a:109)
21:59:24,355 ERROR [STDERR] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)

21:59:24,355 ERROR [STDERR] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
21:59:24,355 ERROR [STDERR] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Htt
p11Protocol.java:583)
21:59:24,355 ERROR [STDERR] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
21:59:24,355 ERROR [STDERR] at java.lang.Thread.run(Thread.java:595)
21:59:24,355 ERROR [STDERR] java.lang.NullPointerException
21:59:24,355 ERROR [STDERR] at hibernate.HibernateBase.Begin(HibernateBase.java:14)
21:59:24,355 ERROR [STDERR] at ejb3.services.Article.ArticleEJB.getAllArticle(ArticleEJB.java:18)
21:59:24,355 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
21:59:24,355 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:3
9)
21:59:24,355 ERROR [STDERR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp
l.java:25)
21:59:24,365 ERROR [STDERR] at java.lang.reflect.Method.invoke(Method.java:585)
21:59:24,365 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:1
12)
21:59:24,365 ERROR [STDERR] at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextI
mpl.java:166)
21:59:24,365 ERROR [STDERR] at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3Intercept
orsInterceptor.java:63)
21:59:24,365 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:1
01)
21:59:24,365 ERROR [STDERR] at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(Tran
sactionScopedEntityManagerInterceptor.java:54)
21:59:24,365 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:1
01)
21:59:24,365 ERROR [STDERR] at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterce
ptor.java:47)
21:59:24,365 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:1
01)
21:59:24,365 ERROR [STDERR] at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79)
21:59:24,365 ERROR [STDERR] at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191)
21:59:24,365 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:1
01)
21:59:24,365 ERROR [STDERR] at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationIntercept
or.java:95)
21:59:24,365 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:1
01)
21:59:24,365 ERROR [STDERR] at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInsta
nceInterceptor.java:62)
21:59:24,365 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:1
01)

[lmc_paul]

ANYONE CAN HELP ME? THANK YOU!!!!

WHY THROW THE CLASSCASTEXCEPTION LIKE THIS:

21:59:24,265 ERROR [STDERR]java.lang.ClassCastException:org.hibernate.impl.SessionFactoryImpl