请大家看看这是什么问题~~我在JBuilder里对一张表(stuffandduty)建立了:
EBean-->生成了Stuffandduty.java 、StuffanddutyBean.java 、 StuffanddutyHome.java三个文件。(interface为local)
DTO-->生成了StuffanddutyDtoAssembler.java 和 StuffanddutyDto.java两个文件。(已进行了序列化)
SBean--->StuffanddutySBHome.java 、 StuffanddutySB.java 、StuffanddutySBBean.java三个文件。(interface为remote)其中加了写函数建立完这些之后我deploy了一下,重新rebuild了我的project在主函数中调用的方法为:
StuffanddutySB sdSB = null; Context ctx = GetContext.getContext();// StuffanddutySBHome sdSBHome = (StuffanddutySBHome) ctx.lookup("StuffanddutySB");
// sdSB = sdSBHome.create();//第一种方法
Object ref = ctx.lookup("StuffanddutySB");
*** StuffanddutySBHome sdSBHome = (StuffanddutySBHome)PortableRemoteObject.narrow(ref, StuffanddutySBHome.class);
sdSB = sdSBHome.create();单步执行,到***出现异常:
java.lang.ClassCastException at com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:229) at javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:137) at qesuite.plugin.tqm.QPlan.QplanGUI.BasicInforPanel.loadData(BasicInforPanel.java:143) at qesuite.plugin.tqm.QPlan.QplanGUI.BasicInforPanel.<init>(BasicInforPanel.java:122) at qesuite.plugin.tqm.QPlan.QplanGUI.QPlanFrame.<init>(QPlanFrame.java:26) at qesuite.plugin.tqm.QPlan.management.PlanList.actionPerformed(PlanList.java:121) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:234) at java.awt.Component.processMouseEvent(Component.java:5488) at javax.swing.JComponent.processMouseEvent(JComponent.java:3126) at java.awt.Component.processEvent(Component.java:5253) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3955) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822) at java.awt.Container.dispatchEventImpl(Container.java:2010) at java.awt.Window.dispatchEventImpl(Window.java:1774) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)Caused by: java.lang.ClassCastException: $Proxy24 at com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:212) ... 29 more尝试修改过的方法:
1.$JBOSS_HOME/server/default/deploy/jbossweb- tomcat55.sar/META-INF目录下的jboss-service.xml文件,UseJBossWebLoader的属性值为 true2.网上有关资料说:StuffanddutySBHome sdSBHome = (StuffanddutySBHome)PortableRemoteObject.narrow(ref, StuffanddutySBHome.class);
这句话强制类型转换的对象不对。那应该怎么修改?我做的这个东东是嵌在一个大工程里面,其他的EJB的调用方法如上就能够正确执行3.将ejb和工程里面的上面相应.class全部删掉,重新生成,但是还是不行。请各位帮帮忙,看一下,我已经苦恼两天了。
EBean-->生成了Stuffandduty.java 、StuffanddutyBean.java 、 StuffanddutyHome.java三个文件。(interface为local)
DTO-->生成了StuffanddutyDtoAssembler.java 和 StuffanddutyDto.java两个文件。(已进行了序列化)
SBean--->StuffanddutySBHome.java 、 StuffanddutySB.java 、StuffanddutySBBean.java三个文件。(interface为remote)其中加了写函数建立完这些之后我deploy了一下,重新rebuild了我的project在主函数中调用的方法为:
StuffanddutySB sdSB = null; Context ctx = GetContext.getContext();// StuffanddutySBHome sdSBHome = (StuffanddutySBHome) ctx.lookup("StuffanddutySB");
// sdSB = sdSBHome.create();//第一种方法
Object ref = ctx.lookup("StuffanddutySB");
*** StuffanddutySBHome sdSBHome = (StuffanddutySBHome)PortableRemoteObject.narrow(ref, StuffanddutySBHome.class);
sdSB = sdSBHome.create();单步执行,到***出现异常:
java.lang.ClassCastException at com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:229) at javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:137) at qesuite.plugin.tqm.QPlan.QplanGUI.BasicInforPanel.loadData(BasicInforPanel.java:143) at qesuite.plugin.tqm.QPlan.QplanGUI.BasicInforPanel.<init>(BasicInforPanel.java:122) at qesuite.plugin.tqm.QPlan.QplanGUI.QPlanFrame.<init>(QPlanFrame.java:26) at qesuite.plugin.tqm.QPlan.management.PlanList.actionPerformed(PlanList.java:121) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:234) at java.awt.Component.processMouseEvent(Component.java:5488) at javax.swing.JComponent.processMouseEvent(JComponent.java:3126) at java.awt.Component.processEvent(Component.java:5253) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3955) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822) at java.awt.Container.dispatchEventImpl(Container.java:2010) at java.awt.Window.dispatchEventImpl(Window.java:1774) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)Caused by: java.lang.ClassCastException: $Proxy24 at com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:212) ... 29 more尝试修改过的方法:
1.$JBOSS_HOME/server/default/deploy/jbossweb- tomcat55.sar/META-INF目录下的jboss-service.xml文件,UseJBossWebLoader的属性值为 true2.网上有关资料说:StuffanddutySBHome sdSBHome = (StuffanddutySBHome)PortableRemoteObject.narrow(ref, StuffanddutySBHome.class);
这句话强制类型转换的对象不对。那应该怎么修改?我做的这个东东是嵌在一个大工程里面,其他的EJB的调用方法如上就能够正确执行3.将ejb和工程里面的上面相应.class全部删掉,重新生成,但是还是不行。请各位帮帮忙,看一下,我已经苦恼两天了。
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楼主【judy_0131】截止到2008-06-23 22:31:35的历史汇总数据(不包括此帖):
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如何结贴请参考这里:http://topic.csdn.net/u/20080501/09/ef7ba1b3-6466-49f6-9d92-36fe6d471dd1.html
这句话强制类型转换的对象不对。那应该怎么修改?我做的这个东东是嵌在一个大工程里面,其他的EJB的调用方法如上就能够正确执行
这句说的是对的,就是类型转换异常
java.lang.ClassCastException
的问题,你就看你的对应的 包名写错没有
Object objRef = null; try { ctx = new InitialContext();
*** objRef = ctx.lookup("Stuffandduty");
sdhome = (StuffanddutyHome) PortableRemoteObject.narrow(objRef,
StuffanddutyHome.class);
}执行到***的时候
javax.naming.NameNotFoundException: StuffanddutySB not bound at org.jnp.server.NamingServer.getBinding(NamingServer.java:491) at org.jnp.server.NamingServer.getBinding(NamingServer.java:499) at org.jnp.server.NamingServer.getObject(NamingServer.java:505) at org.jnp.server.NamingServer.lookup(NamingServer.java:278) at sun.reflect.GeneratedMethodAccessor114.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)。我的jndi就应该是“StuffanddutySB”,问题出在那儿呢?