Java 捕获InitialContext.lookup引起的错误

Java 捕获InitialContext.lookup引起的错误,java,error-handling,glassfish,ejb,jndi,Java,Error Handling,Glassfish,Ejb,Jndi,我正在开发一个命令行客户机(JavaSE6),现在需要与GlassFish2.1服务器通信。 设置此连接的代码为 try { final InitialContext context = new InitialContext(); final String ejbName = GeneratorCancelledRemote.class.getName(); generatorCancelled = (GeneratorCancelledRemote) context.l

我正在开发一个命令行客户机(JavaSE6),现在需要与GlassFish2.1服务器通信。 设置此连接的代码为

try {
    final InitialContext context = new InitialContext();
    final String ejbName = GeneratorCancelledRemote.class.getName();
    generatorCancelled = (GeneratorCancelledRemote) context.lookup(ejbName);
}
catch (Throwable t) {
    System.err.println("--> Could not call server:");
    t.printStackTrace(System.err);
    runWithOutEJB = true;
}
我现在在没有运行服务器的情况下测试它,而客户机(从Eclipse4.2运行时)只是使用

31.10.2012 10:40:09 com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl WARNUNG: "IOP00410201: (COMM_FAILURE) Connection failure: socketType: IIOP_CLEAR_TEXT; hostname: localhost; port: 3700" org.omg.CORBA.COMM_FAILURE: vmcid: SUN minor code: 201 completed: No at com.sun.corba.ee.impl.logging.ORBUtilSystemException.connectFailure(ORBUtilSystemException.java:2783) at com.sun.corba.ee.impl.logging.ORBUtilSystemException.connectFailure(ORBUtilSystemException.java:2804) at com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.(SocketOrChannelConnectionImpl.java:261) at com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.(SocketOrChannelConnectionImpl.java:274) at com.sun.corba.ee.impl.transport.SocketOrChannelContactInfoImpl.createConnection(SocketOrChannelContactInfoImpl.java:130) at com.sun.corba.ee.impl.protocol.CorbaClientRequestDispatcherImpl.beginRequest(CorbaClientRequestDispatcherImpl.java:192) at com.sun.corba.ee.impl.protocol.CorbaClientDelegateImpl.request(CorbaClientDelegateImpl.java:184) at com.sun.corba.ee.impl.protocol.CorbaClientDelegateImpl.is_a(CorbaClientDelegateImpl.java:328) at org.omg.CORBA.portable.ObjectImpl._is_a(ObjectImpl.java:112) at org.omg.CosNaming.NamingContextHelper.narrow(NamingContextHelper.java:69) at com.sun.enterprise.naming.SerialContext.narrowProvider(SerialContext.java:134) at com.sun.enterprise.naming.SerialContext.getCachedProvider(SerialContext.java:259) at com.sun.enterprise.naming.SerialContext.getRemoteProvider(SerialContext.java:204) at com.sun.enterprise.naming.SerialContext.getProvider(SerialContext.java:159) at com.sun.enterprise.naming.SerialContext.lookup(SerialContext.java:409) at javax.naming.InitialContext.lookup(InitialContext.java:392) at com.werkii.latex.generator.Generator.main(Generator.java:344) Caused by: java.lang.RuntimeException: java.net.ConnectException: Connection refused: connect at com.sun.enterprise.iiop.IIOPSSLSocketFactory.createSocket(IIOPSSLSocketFactory.java:347) at com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.(SocketOrChannelConnectionImpl.java:244) ... 14 more Caused by: java.net.ConnectException: Connection refused: connect at sun.nio.ch.Net.connect(Native Method) at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:532) at com.sun.corba.ee.impl.orbutil.ORBUtility.openSocketChannel(ORBUtility.java:105) at com.sun.enterprise.iiop.IIOPSSLSocketFactory.createSocket(IIOPSSLSocketFactory.java:332) ... 15 more 31.10.2012 10:40:09 com.sun.corba.ee.impl.transport.socketorchannelconnection impl 警告:“IOP0041201:(通信故障)连接故障:socketType:IIOP\U CLEAR\u TEXT;主机名:localhost;端口:3700” org.omg.CORBA.COMM_故障:vmcid:SUN次要代码:201已完成:否 在com.sun.corba.ee.impl.logging.ORBUtilSystemException.connectFailure(ORBUtilSystemException.java:2783) 在com.sun.corba.ee.impl.logging.ORBUtilSystemException.connectFailure(ORBUtilSystemException.java:2804) 位于com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.(SocketOrChannelConnectionImpl.java:261) 位于com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.(SocketOrChannelConnectionImpl.java:274) 位于com.sun.corba.ee.impl.transport.socketorchannelcontactinfo.createConnection(socketorchannelcontactinfo.java:130) 位于com.sun.corba.ee.impl.protocol.CorbaClientRequestDispatcherImpl.beginRequest(CorbaClientRequestDispatcherImpl.java:192) 位于com.sun.corba.ee.impl.protocol.CorbaClientDelegateImpl.request(CorbaClientDelegateImpl.java:184) com.sun.corba.ee.impl.protocol.CorbaClientDelegateImpl.is_a(CorbaClientDelegateImpl.java:328) 在org.omg.CORBA.portable.ObjectImpl._是_a(ObjectImpl.java:112) 位于org.omg.CosNaming.NamingContextHelper.slow(NamingContextHelper.java:69) 位于com.sun.enterprise.naming.SerialContext.窄带提供者(SerialContext.java:134) 位于com.sun.enterprise.naming.SerialContext.getCachedProvider(SerialContext.java:259) 位于com.sun.enterprise.naming.SerialContext.getRemoteProvider(SerialContext.java:204) 位于com.sun.enterprise.naming.SerialContext.getProvider(SerialContext.java:159) 位于com.sun.enterprise.naming.SerialContext.lookup(SerialContext.java:409) 在javax.naming.InitialContext.lookup(InitialContext.java:392)中 位于com.werkii.latex.generator.generator.main(generator.java:344) 原因:java.lang.RuntimeException:java.net.ConnectException:连接被拒绝:连接 在com.sun.enterprise.iiop.iiopslsocketfactory.createSocket上(iiopssslsocketfactory.java:347) 位于com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.(SocketOrChannelConnectionImpl.java:244) ... 14多 原因:java.net.ConnectException:连接被拒绝:连接 位于sun.nio.ch.Net.connect(本机方法) 位于sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:532) 在com.sun.corba.ee.impl.orbutil.ORBUtility.openSocketChannel(ORBUtility.java:105)上 在com.sun.enterprise.iiop.iiopslsocketfactory.createSocket上(iiopssslsocketfactory.java:332) ... 还有15个 现在还可以(我还在开发中),它会轰炸,但它会反复轰炸,而且永远不会到达
catch
子句(即使我正在捕获可丢弃的
)-消息不会打印


那么,在我的程序中
查找期间如何处理连接错误呢?

由于您正在与JVM外部的EJB进行对话,您可能需要提供初始上下文的其他详细信息。玻璃鱼,试试看

Properties props = new Properties();
props.setProperty(“java.naming.factory.initial”, “com.sun.enterprise.naming.SerialInitContextFactory”);
props.setProperty(“java.naming.factory.url.pkgs”, “com.sun.enterprise.naming”);
props.setProperty(“java.naming.factory.state”, “com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl”);
props.setProperty(“org.omg.CORBA.ORBInitialHost”, “127.0.0.1″);
props.setProperty(“org.omg.CORBA.ORBInitialPort”, “3700″);
InitialContext ctx = new InitialContext (props);

我知道我需要这个-但是当事情出错时我如何捕捉错误?我猜你已经用catch块捕捉到了错误。快速提出建议-您可能希望避免像在
catch(Throwable t)
中那样的全面异常,并捕获特定异常并相应地处理它们。我知道
Throwable
是一种糟糕的风格。我尝试了
异常
,但没有被捕获。而且我很确定,即使是现在也没有达到捕获量。我看到跟踪没有错误,只有例外。因此,
catch(Exception)
应该处理它。你能试着注释掉
t.printStackTrace(System.err)
并检查跟踪是否正在打印。另外,
是否无法调用服务器:
正在客户端日志中打印?这(将属性传递给
InitialConext
的构造函数)对于Glassfish来说实际上是错误的:请参阅。