我的应用程序基于带有Postgres 9.2 DB的Glassfish 4上的JSF 2.2 EJB 3 JPA。我已经在Glassfish上创建了ConnectionPool和数据源,并通过相关的数据源JNDI名称在我的应用程序中使用了它。我有两个Facelets页面:
login.xhtml调用BackingBean LoginBacking,后者调用UserManagement EJB上的登录方法,该方法使用JPA持久性单元检查登录。在这种情况下,一切正常,用户可以登录,并且如果电子邮件已经存在,则系统会通知用户他已经注册。
registration.xhtml调用BackingBean RegistrationBacking,后者调用UserManagement EJB上的注册方法,该方法通过使用JPA Persistence Unit将用户持久保存到DB中。注册无效!通过查看Glassfish日志,我发现以下异常:
Finer: client acquired: 553217772
Finer: TX binding to tx mgr, status=STATUS_ACTIVE
Finer: acquire unit of work: 218748741
Finer: begin unit of work flush
Finer: end unit of work flush
Finest: Execute query ReadAllQuery(referenceClass=MomUser sql="SELECT id, classname, company, email, firstname, insertion_date, lastname, password, status, systemuser FROM momuser WHERE (email = ?)")
Finest: Connection acquired from connection pool [read].
Finest: reconnecting to external connection pool
Fine: SELECT id, classname, company, email, firstname, insertion_date, lastname, password, status, systemuser FROM momuser WHERE (email = ?)
bind => [1 parameter bound]
Finest: Connection released to connection pool [read].
Finer: TX beforeCompletion callback, status=STATUS_ACTIVE
Finer: begin unit of work commit
Finer: TX afterCompletion callback, status=COMMITTED
Finer: end unit of work commit
Finer: release unit of work
Finer: client released
Finer: client acquired: 1869986747
Finer: TX binding to tx mgr, status=STATUS_ACTIVE
Finer: acquire unit of work: 76560055
Finer: TX afterCompletion callback, status=ROLLEDBACK
Finer: release unit of work
Finer: client released
Warning: EJB5184:A system exception occurred during an invocation on EJB MomUserManager, method: public void eu.fabrig.mom.session.MomUserManager.registerUser(eu.fabrig.mom.jpa.entity.MomUser) throws eu.fabrig.mom.exception.UserExistsException
Warning: javax.ejb.EJBException
at com.sun.ejb.containers.EJBContainerTransactionManager.processSystemException(EJBContainerTransactionManager.java:748)
at com.sun.ejb.containers.EJBContainerTransactionManager.completeNewTx(EJBContainerTransactionManager.java:698)
...
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.IllegalArgumentException: Object: MomUser{id=null, classname=MOMUser, status=A, systemuser=null, insertionDate=null, [email protected], password=098f6bcd4621d373cade4e832627b4f6, firstname=test, lastname=test, company=Test S.p.A.} is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
...
at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:212)
... 54 more
Severe: javax.ejb.EJBException
at com.sun.ejb.containers.EJBContainerTransactionManager.processSystemException(EJBContainerTransactionManager.java:748)
at com.sun.ejb.containers.EJBContainerTransactionManager.completeNewTx(EJBContainerTransactionManager.java:698)
...
at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.IllegalArgumentException: Object: MomUser{id=null, classname=MOMUser, status=A, systemuser=null, insertionDate=null, [email protected], password=098f6bcd4621d373cade4e832627b4f6, firstname=test, lastname=test, company=Test S.p.A.} is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
...
at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:212)
... 54 more
Info: ### You can do the cleanup here
在我的persistence.xml下面:
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
<persistence-unit name="eu.fabrig_MOM.PU" transaction-type="JTA">
<jta-data-source>myDataSource</jta-data-source>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<!-- <class>eu.fabrig.mom.jpa.entity.MomUser</class> -->
<properties>
<property name="eclipselink.logging.level" value="FINEST"/>
</properties>
</persistence-unit>
</persistence>
我的实体和托管Bean类:
@Entity
@Table(name = "momuser")
@Named
@RequestScoped
@XmlRootElement
public class MomUser implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "user_seq_gen")
@SequenceGenerator(name = "user_seq_gen", sequenceName = "mom_seq_id")
@Basic(optional = false)
@Column(name = "id")
private Integer id;
@Basic(optional = false)
@Size(min = 1, max = 100)
@Column(name = "classname")
private String classname = "MOMUser";
@Column(name = "status")
private Character status = 'A';
@Size(max = 100)
@Column(name = "systemuser")
private String systemuser;
@Basic(optional = false)
@Column(name = "insertion_date", insertable = false, updatable = false)
@Temporal(TemporalType.TIMESTAMP)
private Date insertionDate;
@Basic(optional = false)
@NotNull
@Size(min = 1, max = 255)
@Column(name = "email")
private String email;
@Basic(optional = false)
@NotNull
@Size(min = 1, max = 255)
@Column(name = "password")
private String password;
@Basic(optional = false)
@NotNull
@Size(min = 1, max = 255)
@Column(name = "firstname")
private String firstname;
@Basic(optional = false)
@NotNull
@Size(min = 1, max = 255)
@Column(name = "lastname")
private String lastname;
@Size(max = 100)
@Column(name = "company")
private String company;
...
// Getters and Setters
在EJB方法下面:
@Override
public void registerUser(MomUser user) throws UserExistsException {
try {
user.setPassword(generateMD5Hash(user.getPassword()));
em.persist(user);
} catch (UnsupportedEncodingException | NoSuchAlgorithmException ex) {
Logger.getLogger(MomUserManager.class.getName()).log(Level.SEVERE, null, ex);
}
}
Backing bean方法:
public String register(){
try {
MomUser currentMomUser = (MomUser) evaluateEL("#{momUser}", MomUser.class);
MomUser momUser = userManager.getUser(currentMomUser.getEmail());
if (momUser != null) {
getContext().addMessage(null, new FacesMessage(EMAIL_ALREADY_EXISTS));
return null;
}
try {
userManager.registerUser(currentMomUser);
} catch (UserExistsException ex) {
Logger.getLogger(RegistrationBacking.class.getName()).log(Level.SEVERE, null, ex);
getContext().addMessage(null, new FacesMessage(EMAIL_ALREADY_EXISTS));
return null;
}
} catch (Exception ex) {
Logger.getLogger(RegistrationBacking.class.getName()).log(Level.SEVERE, null, ex);
getContext().addMessage(null, new FacesMessage(SYSTEM_ERROR));
return null;
}
return "login";
}
并注册Facelet:
<f:facet name="header">
<h:outputText value="#{bundle['application.registerpage.registrationMessage']}"/>
</f:facet>
<h:outputText value="#{bundle['momuser.email']}"/><h:inputText id="email"
value="#{momUser.email}"
required="true"
requiredMessage="#{bundle['momuser.email.validation']}"
validatorMessage="#{bundle['momuser.email.invalid']}">
<f:validateRegex pattern="[\w\.-]*[a-zA-Z0-9_]@[\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]"/>
</h:inputText>
<h:message for="email" styleClass="errorMessage"/>
<h:outputText value="#{bundle['momuser.password']}"/>
<h:inputSecret id="password"
value="#{momUser.password}"
required="true"
requiredMessage="#{bundle['momuser.password.validation']}"></h:inputSecret>
<h:message for="password" styleClass="errorMessage"/>
<h:outputText value="#{bundle['momuser.firstname']}"/>
<h:inputText id="firstname"
value="#{momUser.firstname}"
required="true"
requiredMessage="#{bundle['momuser.firstname.validation']}"/>
<h:message for="firstname" styleClass="errorMessage"/>
<h:outputText value="#{bundle['momuser.lastname']}"/>
<h:inputText id="lastname"
value="#{momUser.lastname}"
required="true"
requiredMessage="#{bundle['momuser.lastname.validation']}"/>
<h:message for="lastname" styleClass="errorMessage"/>
<h:outputText value="#{bundle['momuser.company']}"/>
<h:inputText id="company"
value="#{momUser.company}"
required="false"/>
<h:message for="company" styleClass="errorMessage"/>
<f:facet name="footer">
<h:panelGroup style="display:block; text-align:center">
<h:commandButton value="#{bundle['application.registrationpage.proceed']}" action="/registration/registrationconfirm?faces-redirect=true"/>
<h:commandButton value="Register" action="#{registrationBacking.register}"/>
<h:link value="#{bundle['application.registrationpage.gotologin']}" outcome="/login"/>
<h:messages globalOnly="true" styleClass="errorMessage"/>
</h:panelGroup>
</f:facet>
</h:panelGrid>
</h:form>
你有什么主意吗?为什么我可以登录但无法注册新用户?
谢谢
感谢@unwichtich的回答,但我终于找到了问题所在,它是由我的疏忽引起的!我导入了错误的@SessionScope,一个是JSF上下文(javax.faces.bean.SessionScoped),而不是一个企业上下文(javax.enterprise.context.SessionScoped)。现在注册成功了!
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