无法启动JBoss，缺少部署

Question

我在JBoss中遇到这个奇怪的错误。 这很奇怪，因为它正在寻找一些甚至与我当前项目无关的旧项目，并且这些旧项目也在Eclipse中从我的工作空间中删除。

当我尝试运行当前项目时，出现以下错误：

DEPLOYMENTS MISSING DEPENDENCIES:
  Deployment "jboss.j2ee:ear=BibliotheekEAR.ear,jar=BibliotheekEJB.jar,name=Bibliotheek,service=EJB3" is missing the following dependencies:
    Dependency "" (should be in state "Described", but is actually in state "** UNRESOLVED Demands 'persistence.unit:unitName=BibliotheekEAR.ear/BibliotheekJPA.jar#BibliotheekJPA' **")
  Deployment "jboss.j2ee:ear=BibliotheekEAR.ear,jar=BibliotheekEJB.jar,name=Bibliotheek,service=EJB3_endpoint" is missing the following dependencies:
    Dependency "jboss.j2ee:ear=BibliotheekEAR.ear,jar=BibliotheekEJB.jar,name=Bibliotheek,service=EJB3" (should be in state "Configured", but is actually in state "PreInstall")

DEPLOYMENTS IN ERROR:
  Deployment "" is in error due to the following reason(s): ** UNRESOLVED Demands 'persistence.unit:unitName=BibliotheekEAR.ear/BibliotheekJPA.jar#BibliotheekJPA' **
  Deployment "persistence.unit:unitName=BibliotheekEAR.ear/BibliotheekJPA.jar#BibliotheekJPA" is in error due to the following reason(s): org.hibernate.HibernateException: Hibernate Dialect must be explicitly set

有任何想法吗？

我已经删除了所有这些项目，所以我不知道为什么要寻找它们...

Answer 1

似乎您没有为在应用程序中使用的数据库正确设置Hibernate数据库方言属性。 尝试像这样在persistence.xml文件中设置数据库方言：

<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/>

如果您使用的是MySQL。 这是最常用的休眠方言列表。

Answer 2

我已经删除了所有这些项目，所以我不知道为什么要寻找它们

从哪里删除？ 也许要仔细检查一下，确认它们在您使用的服务器配置的deploy或tmp目录下没有剩余的痕迹。

也可以看看

• 2.1。 服务器结构