JNDI“无法实例化类：org.jboss.naming.remote.client.InitialContextFactory”
我正在使用JBoss Server for EJB我需要在控制台应用程序中使用JNDI来获取会话bean的引用，控制台应用程序代码看起来像这样
import java.util.Properties; import javax.naming.InitialContext; import javax.naming.NamingException; public class Program { public static void main(String[] args) throws NamingException { // TODO Auto-generated method stub Properties pr = new Properties(); pr.put(InitialContext.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory"); pr.put(InitialContext.PROVIDER_URL,"remote://localhost:4447"); InitialContext ic = new InitialContext(pr); } } 当我运行应用程序时，我得到了exception
Exception in thread "main" javax.naming.NoInitialContextException: Cannot instantiate class: org.jboss.naming.remote.client.InitialContextFactory [Root exception is java.lang.ClassNotFoundException: org.jboss.naming.remote.client.InitialContextFactory] 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.(Unknown Source) at Program.main(Program.java:14) Caused by: java.lang.ClassNotFoundException: org.jboss.naming.remote.client.InitialContextFactory at java.net.URLClassLoader$1.run(Unknown Source) 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.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at com.sun.naming.internal.VersionHelper12.loadClass(Unknown Source) ... 5 more
您可以使用以下上下文进行连接。 我已经尝试并测试过设置它。
import java.util.Properties; import javax.naming.Context; import javax.naming.NamingException; public class Program { public static void main(String[] args) throws NamingException { Properties jndiProps = new Properties(); jndiProps.put(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory"); jndiProps.put(Context.PROVIDER_URL,"remote://localhost:4447"); jndiProps.put(Context.SECURITY_PRINCIPAL, "testuser"); jndiProps.put(Context.SECURITY_CREDENTIALS, "testpassword"); jndiProps.put("jboss.naming.client.ejb.context", true); Context ctx = new InitialContext(jndiProps); } }
然后我得到了这个错误
JBREM000200: Remote connection failed: javax.security.sasl.SaslException: Authentication failed: all available authentication mechanisms failed - Could not register a EJB receiver for connection to remote://localhost:4447 java.lang.RuntimeException: javax.security.sasl.SaslException: Authentication failed: all available authentication mechanisms failed.
然后我使用add-user.sh添加了用户。
成功的握手消息来了。
要克服上述错误，您需要注意两点。
首先，您需要在classpath中使用jboss-client.jar 。
其次，根据您使用的Jboss版本，您需要更改您的提供者URL 。
对于JBossAS 5，您应该在环境中设置以下属性
env.put(Context.INITIAL_CONTEXT_FACTORY,"org.jboss.naming.NamingContextFactory"); env.put(Context.URL_PKG_PREFIXES,"org.jboss.naming:org.jnp.interfaces"); env.put(Context.PROVIDER_URL, "jnp://127.0.0.1:1099");
对于JBossAS 7，您应该在环境中设置以下属性
env.put(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory"); env.put(Context.PROVIDER_URL, System.getProperty(Context.PROVIDER_URL, "remote://localhost:4447")); env.put(Context.SECURITY_PRINCIPAL, System.getProperty("username", DEFAULT_USERNAME)); env.put(Context.SECURITY_CREDENTIALS, System.getProperty("password", DEFAULT_PASSWORD));
您可能需要将jboss-client.jar和jboss-ejb3-common-client.jar添加到您的库中