尝试运行客户端时出现EJB异常

Question

javax.naming.NoInitialContextException: Cannot instantiate class: org.jnp.interf
aces.NamingContextFactory [Root exception is java.lang.ClassNotFoundException: o
rg.jnp.interfaces.NamingContextFactory]
        at javax.naming.spi.NamingManager.getInitialContext(Unknown Source)
        at javax.naming.InitialContext.getDefaultInitCtx(Unknown Source)
        at javax.naming.InitialContext.init(Unknown Source)
        at javax.naming.InitialContext.<init>(Unknown Source)
        at Client_TestPortal.main(Client_TestPortal.java:54)
Caused by: java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFac
tory
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Unknown Source)
        at com.sun.naming.internal.VersionHelper12.loadClass(Unknown Source)
        ... 5 more

Answer 1

该异常表示初始化InitialContext已失败,因为您的Client_TestPortal应用程序.重要的是,它无法加载org.jnp.interfaces.NamingContextFactory(我假设)您的平台的默认Java命名提供程序的类.

您的应用程序类路径似乎缺少必需的JAR文件.根据这个findjar查询,它可能是以下之一:

[LOCAL] jbossall-client.jar
[LOCAL] jbossjmx-ant.jar
[MAVEN2] jnpserver-3.2.3.jar
[MAVEN2] jbossall-client-3.2.1.jar
[MAVEN2] jbossall-client-3.2.3.jar
[MAVEN2] jbossjmx-ant-3.2.3.jar
[MAVEN2] jnp-client-3.2.1.jar
[MAVEN2] jnp-client-4.0.2.jar

... 或类似的东西.上述JAR中哪一个(如果有的话)最合适很难说.