EJB 2.1 ClassCastException異常

Question

下面是我的代碼

Properties localProperties = new Properties(); 
     localProperties.setProperty("java.naming.factory.initial", "com.sun.enterprise.naming.SerialInitContextFactory"); 
     localProperties.setProperty("java.naming.factory.url.pkgs", "com.sun.enterprise.naming"); 
     localProperties.setProperty("java.naming.factory.state", "com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl"); 
     localProperties.setProperty("org.omg.CORBA.ORBInitialHost", "localhost"); 
     localProperties.setProperty("org.omg.CORBA.ORBInitialPort", "3700"); 
     InitialContext localInitialContext = new InitialContext(localProperties); 
     SanityAutomationAvailabilityMain localSanityAutomationAvailabilityMain = (SanityAutomationAvailabilityMain)localInitialContext.lookup("ejb/com/cw/wad/sanity/ejb/session/interfaces/SanityAutomationAvailabilityMain"); 

我得到與上面的代碼一個ClassCastException。任何想法，我可能做錯了什麼？謝謝。

Answer 1

您正在嘗試轉換爲（SanityAutomationAvailabilityMain），並且您得到一個classcastexception，那麼無論您嘗試投射的值是什麼類型，都與SanityAutomationAvailabilityMain不兼容。