Jpa Openshift应用程序和ejb“；部署失败。/ROOT.war

我正在openshift上开发第一个应用程序。它是一个具有数据库连接性的jsf应用程序。 首先，我只尝试了一些JSFXHTML页面，没有jpa和所有的工作。 当我插入一个bean来访问数据库时，我收到了来自服务器的消息“部署失败。/ROOT.waer。正是当我插入这段代码时，出现了一些错误：

用于查看意图的类

 @ManagedBean(name="utnavctrl" ,eager=true)
@SessionScoped
public class Utnavctrl {
    boolean newrecord=false;
    @EJB
    private Usersdao usersdao;
public Utnavctrl(){

用于db连接的bean类

    @Stateless
@LocalBean
public class Usersdao {
    @PersistenceContext(unitName = "primary")
    private EntityManager em;

    public Usersdao() {
        // TODO Auto-generated constructor stub
    }
    public List<User> getAllUsers() {
                return em.createNamedQuery("User.findAll", User.class)
                    .getResultList();
            }

@无状态
@本地豆
公共类Usersdao{
@PersistenceContext（unitName=“primary”）
私人实体管理者；
公共用户dao（）{
//TODO自动生成的构造函数存根
}
公共列表getAllUsers（）{
返回em.createNamedQuery（“User.findAll”，User.class）
.getResultList（）；
}

我不明白为什么在添加了这两个类（没有修改视图端的xhtml ecc）之后，程序不再工作了

persince.xml是

 <?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="primary">
      <!-- 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/kitchensink-quickstart-ds.xml, you
         can find it in the source at src/main/webapp/WEB-INF/kitchensink-quickstart-ds.xml -->
      <jta-data-source>java:jboss/datasources/MySQLDS</jta-data-source>
      <class>com.antoiovi.gestcars.model.Automobili</class>
      <class>com.antoiovi.gestcars.model.Group</class>
      <class>com.antoiovi.gestcars.model.Prenotazioniauto</class>
      <class>com.antoiovi.gestcars.model.Proglav</class>
      <class>com.antoiovi.gestcars.model.Role</class>
      <class>com.antoiovi.gestcars.model.User</class>
      <class>com.antoiovi.gestcars.model.UserData</class>

      <properties>
         <!-- Properties for Hibernate -->
         <property name="hibernate.hbm2ddl.auto" value="create-drop" />
         <property name="hibernate.show_sql" value="false" />
      </properties>
   </persistence-unit>
</persistence>

java:jboss/datasources/MySQLDS
com.antiovi.gestcars.model.Automobili
com.antiovi.gestcars.model.Group
com.antiovi.gestcars.model.Prenotazioniauto
com.antiovi.gestcars.model.Proglav
com.antiovi.gestcars.model.Role
com.antiovi.gestcars.model.User
com.antiovi.gestcars.model.UserData

这个bean.xml是

    <?xml version="1.0" encoding="UTF-8"?>
<!-- This file can be an empty text file (0 bytes) -->
<!-- We're declaring the schema to save you time if you do have to configure 
   this in the future -->
<beans 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/beans_1_0.xsd">
</bean

Remove eager=true，因为这会给OpenShift带来问题……我不知道为什么，但我已经看到了