Question

我想使用Glassfish提供的持久性管理器。

当服务器启动时，持久性单元可以使用_pu1 login successful的日志条目。

网络服务有效。我可以从客户端访问它，但EntityManager保持NULL

如果我删除@PersistenceContext(unitName = "pu1")注释，则_pu1 login successful的日志条目不再出现。如果我改变了unitName，我会得到一个例外。

我一定错过了一个细节。

设置非常简单：

web.xml为空
beans.xml为空
sun-jaxws.xml包含Web服务的定义

以下是WebService类的代码（为简洁起见，开头已经省略了）：

@LocalBean
@Stateless
@WebService()
public class AlbauInterface implements Serializable {
   private Logger logger = Logger.getLogger( getClass().getName() );

   @PersistenceContext(unitName = "pu1")
   private EntityManager em;

   private DataAccess session;

   private List<ServiceReport> reports = new ArrayList<ServiceReport>();

   private boolean logedIn = false;

   @PostConstruct
   private void init() {
      logger.fine( "initializing" );
   }

   @PreDestroy
   private void finalizer() {
   }

   @WebMethod
   public void login( @WebParam( name = "user", mode = WebParam.Mode.IN ) String user,
                      @WebParam( name = "password", mode = WebParam.Mode.IN ) String password )
               throws WebApplicationException {
      logedIn = true;
      return;
   }
}

这是persistence.xml：

<persistence xmlns="http://java.sun.com/xml/ns/persistence" version="1.0">
   <persistence-unit name="pu1">
      <jta-data-source>jdbc/__default</jta-data-source>
      <properties>
         <!--Use the java2db feature -->
         <property name="eclipselink.ddl-generation" value="create-tables"/>
         <!-- Generate the sql specific to Derby database -->
         <property name="eclipselink.target-database" value="Derby"/>
      </properties>
   </persistence-unit>
</persistence>

日志文件包含以下警告，我不明白：

#|2012-03-14T17:57:29.298+0100|WARNING|glassfish3.1.1|org.eclipse.persistence.session.file:/Development/glassfish3/glassfish/domains/domain1/applications/SertalInterface/WEB-INF/classes/_pu1.server|_ThreadID=17;_ThreadName=Thread-3;|Multiple [2] JMX MBeanServer instances exist, we will use the server at index [0] : [com.sun.enterprise.v3.admin.DynamicInterceptor@d25538].|#]
[#|2012-03-14T17:57:29.298+0100|WARNING|glassfish3.1.1|org.eclipse.persistence.session.file:/Development/glassfish3/glassfish/domains/domain1/applications/SertalInterface/WEB-INF/classes/_pu1.server|_ThreadID=17;_ThreadName=Thread-3;|JMX MBeanServer in use: [com.sun.enterprise.v3.admin.DynamicInterceptor@d25538] from index [0] |#]
[#|2012-03-14T17:57:29.300+0100|WARNING|glassfish3.1.1|org.eclipse.persistence.session.file:/Development/glassfish3/glassfish/domains/domain1/applications/SertalInterface/WEB-INF/classes/_pu1.server|_ThreadID=17;_ThreadName=Thread-3;|JMX MBeanServer in use: [com.sun.jmx.mbeanserver.JmxMBeanServer@9c2a55] from index [1] |#]

EntityManager未在Web Service中注入

0 个答案: