Question

我正在使用以下配置：

EclipseLink 2.5.2
Spring Security 4.0.3
Wildfly 9.0.2

我有一个无状态EJB来执行基本的数据库操作。

@Stateless
public class GenericService {

    @PersistenceContext(unitName = "VoxFlowPU")
    protected EntityManager em;

    public <T extends DefaultEntity> T save(T entity) {
        if (entity.getId() == null) {
            em.persist(entity);
            return entity;
        } else {
            return em.merge(entity);
        }
    }
    //other methods
}

我正在使用自定义身份验证提供程序来使用Spring Security框架。我有一个UserDao类，这个类需要执行一个基本的数据库操作，我使用@EJB注释来使用GenericService类。

@Repository
public class UserDao {

@EJB
private GenericService genericService;

    public IrisUser loadUserByUsername(final String username) {
        Map<String, Object> params = new HashMap<>();
        params.put("login", username);
        List<IrisUser> users = genericService.findAllBySpecificsParams(IrisUser.class, params);
        if (Utility.isCollectionEmpty(users)) {
            return null;
        } else {
            Role r = new Role();
            r.setName("ROLE_USER");
            List<Role> roles = new ArrayList<>();
            roles.add(r);
            users.get(0).setAuthorities(roles);

            //Caso seja o primeiro login do usuário ele será inserido nas tabelas de relacionamento do sistema
            if (!checkIfUserExistsInVoxFlow(username)) {
                addUserInVoxFlow(users.get(0));
            }

            return users.get(0);
        }
    }
    //other methods
}

但是当代码到达该行时：

List<IrisUser> users = genericService.findAllBySpecificsParams(IrisUser.class, params);

GenericService实例不为null，但EntityManager始终为null。 @PersistenceContext没有实例化变量。

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="VoxFlowPU" transaction-type="JTA">
        <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
        <jta-data-source>java:/comp/env/jdbc/voxFlowDatasource</jta-data-source>
        <exclude-unlisted-classes>false</exclude-unlisted-classes>
        <class>br.com.voxage.voxflow.entities.Team</class>
        <class>br.com.voxage.voxflow.entities.User</class>
        <class>br.com.voxage.voxflow.entities.Action</class>
        <class>br.com.voxage.voxflow.entities.ActionFields</class>
        <class>br.com.voxage.voxflow.entities.Comment</class>
        <class>br.com.voxage.voxflow.entities.Field</class>
        <class>br.com.voxage.voxflow.entities.FieldType</class>
        <class>br.com.voxage.voxflow.entities.FieldTypeOption</class>
        <class>br.com.voxage.voxflow.entities.Issue</class>
        <class>br.com.voxage.voxflow.entities.IssueFieldsValues</class>
        <class>br.com.voxage.voxflow.entities.Status</class>
        <class>br.com.voxage.voxflow.entities.StatusHistory</class>
        <class>br.com.voxage.voxflow.entities.StatusTeamPermission</class>
        <class>br.com.voxage.voxflow.entities.StatusUserPermission</class>
        <class>br.com.voxage.voxflow.entities.Step</class>
        <class>br.com.voxage.voxflow.entities.Workflow</class>
        <class>br.com.voxage.voxflow.entities.IrisUser</class>
        <class>br.com.voxage.voxflow.entities.IrisTeam</class>
        <class>br.com.voxage.voxflow.entities.FileUpload</class>
        <properties>
            <property name="eclipselink.logging.logger" value="JavaLogger" />
            <property name="eclipselink.logging.level" value="FINE"/>
            <property name="eclipselink.logging.level.sql" value="FINE"/>
            <property name="eclipselink.logging.parameters" value="true"/>
        </properties>
    </persistence-unit>
</persistence>

Wildfly standalone.xml：

<datasource jndi-name="java:/comp/env/jdbc/voxFlowDatasource" pool-name="jdbc/voxFlowDatasource" enabled="true" use-java-context="true">
    <connection-url>jdbc:sqlserver://MACHINE-NAME;databaseName=voxflow;instanceName=SQLEXPRESS</connection-url>
    <driver>sqlserver</driver>
    <security>
        <user-name>*****</user-name>
        <password>*****</password>
    </security>
</datasource>

我已经尝试了许多我在foruns中找到的不同解决方案，但我所做的一切似乎没有任何影响。

EntityManager始终为null

0 个答案: