java. Lang.illegalstateexception: unable to retrieve entitymanagerfactory of unitname crudpu
•
Java
I need to test for my new job, but it seems that I'm in a coma
JDBC / crudds has been configured on the server, Ping succeeded When deploying the application, I only see EJB and web in the "engine" column, but I don't see JPA engine
This is an entity bean:
@Entity
@Table(name = "tasks")
public class Task implements Serializable {
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private int id;
@Column(name="title")
private String title;
@Column(name="mail")
private String mail;
@Column(name="text")
private String text;
@Column(name="time")
private Date time;
@Column(name="interval")
private int interval;
@Column(name="repeats")
private int repeats;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getMail() {
return mail;
}
public void setMail(String mail) {
this.mail = mail;
}
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
public Date getTime() {
return time;
}
public void setTime(Date time) {
this.time = time;
}
public int getInterval() {
return interval;
}
public void setInterval(int interval) {
this.interval = interval;
}
public int getRepeats() {
return repeats;
}
public void setRepeats(int repeats) {
this.repeats = repeats;
}
@Override
public int hashCode() {
return getId();
}
}
This is my Dao abstract class:
public abstract class GenericDAO<T> {
private final static String UNIT_NAME = "CrudPU";
@PersistenceContext(unitName = UNIT_NAME)
private EntityManager em;
private Class<T> entityClass;
public GenericDAO(Class<T> entityClass) {
this.entityClass = entityClass;
}
public void save(T entity) {
em.persist(entity);
}
protected void delete(Object id,Class<T> classe) {
T entityToBeRemoved = em.getReference(classe,id);
em.remove(entityToBeRemoved);
}
public T update(T entity) {
return em.merge(entity);
}
public T find(int entityID) {
return em.find(entityClass,entityID);
}
@SuppressWarnings({ "unchecked","rawtypes" })
public List<T> findAll() {
CriteriaQuery cq = em.getCriteriaBuilder().createQuery();
cq.select(cq.from(entityClass));
return em.createQuery(cq).getResultList();
}
@SuppressWarnings("unchecked")
protected T findOneResult(String namedQuery,Map<String,Object> parameters) {
T result = null;
try {
Query query = em.createNamedQuery(namedQuery);
if (parameters != null && !parameters.isEmpty()) {
populateQueryParameters(query,parameters);
}
result = (T) query.getSingleResult();
} catch (Exception e) {
System.out.println("Error while running query: " + e.getMessage());
e.printStackTrace();
}
return result;
}
private void populateQueryParameters(Query query,Object> parameters) {
for (Entry<String,Object> entry : parameters.entrySet()) {
query.setParameter(entry.getKey(),entry.getValue());
}
}
}
Extend Dao classes:
@Stateless
public class TaskDAO extends GenericDAO<Task>{
public TaskDAO() {
super(Task.class);
}
public void delete(Task task) {
super.delete(task.getId(),Task.class);
}
}
Facade interface:
@Local
public interface TaskFacade {
public abstract void save(Task task);
public abstract Task update(Task task);
public abstract void delete(Task task);
public abstract Task find(int entityID);
public abstract List<Task> findAll();
}
... its implementation:
@Stateless
public class TaskFacadeImpl implements TaskFacade {
@EJB
private TaskDAO taskDAO;
public void save(Task task) {
isTaskWithAllData(task);
taskDAO.save(task);
}
public Task update(Task task) {
isTaskWithAllData(task);
return taskDAO.update(task);
}
public void delete(Task task) {
taskDAO.delete(task);
}
public Task find(int entityID) {
return taskDAO.find(entityID);
}
public List<Task> findAll() {
return taskDAO.findAll();
}
private void isTaskWithAllData(Task task){
boolean hasError = false;
if(task == null){
hasError = true;
}
if(task.getInterval() < 0){
hasError = true;
}
if(task.getRepeats() < 0){
hasError = true;
}
if (task.getMail() == null || "".equals(task.getMail().trim())){
hasError = true;
}
if (hasError){
throw new IllegalArgumentException("The task is missing data. Check the e-mail,it should have value. Interval and repeats should be >= 0 ");
}
}
}
Persistence from / SRC / meta inf / xml：
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="CrudPU" transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>jdbc/CrudDS</jta-data-source>
<properties>
<property name="hibernate.hbm2ddl.auto" value="update"/>
</properties>
</persistence-unit>
</persistence>
When I try to perform some operation (save()), I get an exception:
javax.faces.el.EvaluationException: javax.ejb.EJBTransactionRolledbackException at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102) at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102) at javax.faces.component.UICommand.broadcast(UICommand.java:315) at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794) at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259) 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:118) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281) 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.ejb.EJBTransactionRolledbackException at com.sun.ejb.containers.BaseContainer.mapLocal3xException(BaseContainer.java:2314) at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2096) at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1994) at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:222) at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:89) at $Proxy235.save(UnkNown Source) at com.zhalostnikov.dao.__EJB31_Generated__TaskDAO__Intf____Bean__.save(UnkNown Source) at com.zhalostnikov.facade.TaskFacadeImpl.save(TaskFacadeImpl.java:20) 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:601) at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1052) at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1124) at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:5388) at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:619) at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800) at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:571) at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doAround(SystemInterceptorProxy.java:162) at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:144) 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:601) at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:861) at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800) at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:370) at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:5360) at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:5348) at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:214) at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:89) at $Proxy236.save(UnkNown Source) at TestBean.doo(TestBean.java:21) 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:601) at com.sun.el.parser.AstValue.invoke(AstValue.java:254) at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:302) at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105) at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88) ... 32 more Caused by: javax.ejb.TransactionRolledbackLocalException: Exception thrown from bean at com.sun.ejb.containers.BaseContainer.checkExceptionClientTx(BaseContainer.java:5071) at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:4906) at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2045) ... 71 more Caused by: java.lang.IllegalStateException: Unable to retrieve EntityManagerFactory for unitName CrudPU at com.sun.enterprise.container.common.impl.EntityManagerWrapper.init(EntityManagerWrapper.java:132) at com.sun.enterprise.container.common.impl.EntityManagerWrapper.doTxrequiredCheck(EntityManagerWrapper.java:152) at com.sun.enterprise.container.common.impl.EntityManagerWrapper.doTransactionScopedTxCheck(EntityManagerWrapper.java:145) at com.sun.enterprise.container.common.impl.EntityManagerWrapper.persist(EntityManagerWrapper.java:263) at com.zhalostnikov.dao.GenericDAO.save(GenericDAO.java:27) 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:601) at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1052) at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1124) at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:5388) at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:619) at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800) at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:571) at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doAround(SystemInterceptorProxy.java:162) at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:144) 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:601) at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:861) at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800) at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:370) at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:5360) at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:5348) at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:214) ... 69 more
It seems that the persistence unit cannot be found, but I can't find the reason Can enybody help me?
Solution
You can carefully check the persistence in your war file Where is the XML? It should be on myapp war / WEB-INF / classes / Meta-INF / persistence. XML
If you use a standard Maven layout, then persistence The XML should be located in Src / main / resources / meta inf / persistence. XML in the source code project In XML
The content of this article comes from the network collection of netizens. It is used as a learning reference. The copyright belongs to the original author.
THE END
二维码