Question

我正在使用Wildfly 10。我正在尝试将实体绑定到jsf页面并将其与jpa保存到我的数据库中。

我得到了 javax.servlet.ServletException：javax.ejb.EJBException：java.lang.IllegalArgumentException：未知实体：de.rupp.model.Contact $ Proxy $ _ $$ _ WeldClientProxy javax.faces.webapp.FacesServlet.service（FacesServlet.java:671）

我在WEB-INF / classes / META-INF中的persistence.xml：

<?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="contacts">
      <!-- If you are running in a production environment, add a managed 
         data source, this example data source is just for development and testing! -->
      <!-- The datasource is deployed as WEB-INF/jsftest-ds.xml, you
         can find it in the source at src/main/webapp/WEB-INF/jsftest-ds.xml -->
      <jta-data-source>java:/ContactsDS</jta-data-source>
      <class>de.rupp.model.Contact</class>
      <properties>
         <!-- Properties for Hibernate -->
         <property name="hibernate.hbm2ddl.auto" value="update" />
         <property name="hibernate.show_sql" value="false" />
      </properties>
   </persistence-unit>
</persistence>

我的实体

@Named
@RequestScoped
@Entity
@NamedQueries({
    @NamedQuery(name=Contact.FIND_ALL, query="SELECT c FROM Contact c"),
    @NamedQuery(name=Contact.DELETE_ALL, query="DELETE FROM Contact")
})
public class Contact implements Serializable{


    public final static String FIND_ALL = "Contacts.findAll";
    public final static String DELETE_ALL = "Contacts.deleteAll";

    /**
     * 
     */
    private static final long serialVersionUID = -7050382512059267701L;

    @Id
    @GeneratedValue
    private Long id;

    private String firstName;
    private String lastName;
    private String email;
    private String phone;
    private String message;


    //getter and setter omitted for brevity 

}

我的控制器

@Named
@RequestScoped
public class EingabeController implements Serializable {

    private Logger log = LoggerFactory.getLogger(EingabeController.class);

    @Inject
    private ContactsDAOBean contactsDAOBean;


    @Inject
    private Contact contact;


    public void save() {
        this.contactsDAOBean.save(this.contact);
        log.info(this.contact + " saved");
    }

}

我的持久层工作我为此编写了一个Arquillian测试：

@RunWith(Arquillian.class)
public class ContactsDAOTest {


     @Deployment
        public static Archive<?> createTestArchive() {
            return ShrinkWrap.create(WebArchive.class, "test.war")
                    .addClasses(Contact.class, AbstractDAO.class, AbstractDAOBean.class, ContactsDAOBean.class)
                    .addAsResource("META-INF/persistence.xml")
                    .addAsWebInfResource(EmptyAsset.INSTANCE, "beans.xml");

        }




     @Inject
     private ContactsDAOBean contactsDAOBean;

     @Before
     public void init() {
         contactsDAOBean.deleteAll();
     }

     @Test
     public void save() {
         Contact contact = new Contact();
         contact.setEmail("h.rupp@dzbw.de");
         contact.setFirstName("Hans");
         contact.setLastName("Rupp");
         contact.setPhone("0711 8108 276232");
         contact.setMessage("Ich will hier raus");
         contactsDAOBean.save(contact);
         List<Contact> contacts = contactsDAOBean.findAll();
         assertEquals(1, contacts.size());
     }

}

非常感谢任何想法

------------------- edit --------------------------- -----------

我重构了这个页面：最初Contact实体已直接绑定到输入元素，如

<h:inputText value="#{contact.firstName}"  styleClass="form-control"/>

我更改了控制器，以便生成要保存的实体。

@Named
@RequestScoped
public class EingabeController implements Serializable {

    @Inject
    private ContactsDAOBean contactsDAOBean;

    @Named
    @Produces
    private Contact newContact;

    @PostConstruct
    public void init() {
        this.newContact = new Contact();
    }

    public String save() {
        this.contactsDAOBean.save(this.newContact);
        log.info(this.newContact + " saved");
        this.savedContact = this.newContact;
        return "data";
    }

    @Named
    @Produces
    private Contact savedContact;

}

@Named和@RequestScoped Annotations已从Contact eintity中删除。

<h:inputText value="#{newContact.lastName}" styleClass="form-control" id="lastName"/>

页面的工作原理如下，可以在没有errro的情况下调用保存操作。

也许真正的原因是我对JSF和CDI应该如何工作的误解。

我认为在原版中 - 在呈现页面时实例化绑定到控件的bean - bean填充了用户输入的值 - 当调用save动作时，bean被注入控制器这可能是我在推理中的错误：控制器已实例化使用该页面，并且当时注入了Contacts bean，是不是像绑定到控件的bean那样的实例？

我只是想（重新）学习JSF ....任何人都可以推荐一个很好的来源，详尽讨论JSF应用程序的架构吗？我想我有足够的书籍可以单独讨论控件等。

Answer 1

尝试编辑您的实体，如下所示。

@Entity
@Table(name = "nameOfTableInDatabase", catalog = "databaseName")
@NamedQueries({
    @NamedQuery(name=Contact.FIND_ALL, query="SELECT c FROM Contact c"),
    @NamedQuery(name=Contact.DELETE_ALL, query="DELETE FROM Contact")
})
public class Contact implements java.io.Serializable {

bla
bla
}

JEE Web应用程序实体未找到Wildfly

1 个答案: