java - 访问 EJB3 时 JBoss 类转换异常

Question

我在使用 EJB3 时遇到了一个奇怪的问题。已部署和 EJB3，并且正在尝试从已部署实例访问业务方法。 执行查找时出现以下错误:

• UserAuthenticationRemote 是远程 i/face
• UserAuthenticationBean 是 Bean

代码(失败):

UserAuthenticationRemote remoteInterface = (UserAuthenticationRemote) context.lookup("UserAuthenticationBean/remote");

错误日志:

    java.lang.ClassCastException: javax.naming.Reference cannot be cast to eds.enhancedqc.authentication.UserAuthenticationRemote 
            at        eds.enhancedqc.client.application.LoginDialog$3.doInBackground(LoginDialog.java:220)
            at org.jdesktop.swingworker.SwingWorker$1.call(Unknown Source)

    Exception "java.lang.ClassNotFoundException: org.openide.loaders.DataObject"while constructing DataFlavor for: application/x-java-openide-dataobjectdnd; mask=1; class=org.openide.loaders.DataObject
            at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    Exception "java.lang.ClassNotFoundException: org.openide.loaders.DataObject"while constructing DataFlavor for: application/x-java-openide-dataobjectdnd; mask=1; class=org.openide.loaders.DataObject
            at java.util.concurrent.FutureTask.run(FutureTask.java:138)
            at org.jdesktop.swingworker.SwingWorker.run(Unknown Source)
            at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
            at java.lang.Thread.run(Thread.java:619)

---

请帮忙!

谢谢， 山姆

Answer 1

问题仅出在 jar 文件上。所以从你项目中删除所有 jar 文件并从 jboss-6.0.0.Final\client 文件夹中取出 jar 文件，这是你正在运行的服务器并将其作为类路径然后它将运行正常