我目前正在向Java EE介绍自己,尤其是如何使用EJB和JMS。
我在互联网上有一个本地客户端和一个远程服务器。 JMS通信工作正常,EJB通信没有。通信在我的本地网络中成功。
我正在使用Maven构建:
我正在使用WildFly应用服务器来部署EAR。根据服务器日志,EJB已成功导出。所有流量均基于http-remoting
。根据需要,根据嗅探流量进行交换。
让我们以客户端登录为例。登录API调用基于远程EJB通信,同时发送JMS消息。
如果我在Eclipse的本地计算机上运行客户端和服务器,则登录正常,JMS消息正确处理。如果我在同一网络中的其他计算机上运行客户端,则同样适用。如果我在本地网络中运行客户端,但是在Internet中运行服务器,则EJB通信失败并且JMS消息仍然正确处理。
为什么?
未调用远程EJB的登录方法,没有日志。我已将log4j.logger.org.jboss.ejb.client=TRACE
添加到log4j.properties
。如果API调用失败,客户端会记录:
2015-06-21 16:47:49 [GS Desktop Init Thread] DEBUG PropertiesBasedEJBClientConfiguration:242 - endpoint.create.options. has the following options {}
2015-06-21 16:47:49 [GS Desktop Init Thread] TRACE PropertiesBasedEJBClientConfiguration:272 - Options {} have been merged with defaults {org.xnio.Options.THREAD_DAEMON=>true} to form {org.xnio.Options.THREAD_DAEMON=>true}
2015-06-21 16:47:49 [GS Desktop Init Thread] DEBUG PropertiesBasedEJBClientConfiguration:242 - remote.connectionprovider.create.options. has the following options {org.xnio.Options.SSL_ENABLED=>false}
2015-06-21 16:47:49 [GS Desktop Init Thread] TRACE PropertiesBasedEJBClientConfiguration:272 - Options {org.xnio.Options.SSL_ENABLED=>false} have been merged with defaults {} to form {org.xnio.Options.SSL_ENABLED=>false}
2015-06-21 16:47:49 [GS Desktop Init Thread] DEBUG PropertiesBasedEJBClientConfiguration:242 - remote.connection.default.connect.options. has the following options {org.xnio.Options.SASL_DISALLOWED_MECHANISMS=>[JBOSS-LOCAL-USER],org.xnio.Options.SASL_POLICY_NOANONYMOUS=>false}
2015-06-21 16:47:49 [GS Desktop Init Thread] TRACE PropertiesBasedEJBClientConfiguration:272 - Options {org.xnio.Options.SASL_DISALLOWED_MECHANISMS=>[JBOSS-LOCAL-USER],org.xnio.Options.SASL_POLICY_NOANONYMOUS=>false} have been merged with defaults {} to form {org.xnio.Options.SASL_DISALLOWED_MECHANISMS=>[JBOSS-LOCAL-USER],org.xnio.Options.SASL_POLICY_NOANONYMOUS=>false}
2015-06-21 16:47:49 [GS Desktop Init Thread] DEBUG PropertiesBasedEJBClientConfiguration:242 - remote.connection.default.channel.options. has the following options {}
2015-06-21 16:47:49 [GS Desktop Init Thread] DEBUG PropertiesBasedEJBClientConfiguration:490 - Connection org.jboss.ejb.client.PropertiesBasedEJBClientConfiguration$RemotingConnectionConfigurationImpl@33f49f38 successfully created for connection named default
2015-06-21 16:47:49 [GS Desktop Init Thread] DEBUG PropertiesBasedEJBClientConfiguration:295 - No clusters configured in properties
2015-06-21 16:47:49 [GS Desktop Init Thread] DEBUG EJBClientPropertiesLoader:100 - Looking for jboss-ejb-client.properties using classloader sun.misc.Launcher$AppClassLoader@58644d46
2015-06-21 16:47:49 [GS Desktop Init Thread] INFO client:45 - JBoss EJB Client version 2.1.1.Final
...
2015-06-21 16:47:51 [Remoting "config-based-ejb-client-endpoint" task-4] DEBUG RemotingConnectionEJBReceiver:191 - Channel Channel ID eb5d763d (outbound) of Remoting connection 25bff644 to euve1234.vserver.de/84.46.96.86:8080 opened for context EJBReceiverContext{clientContext=org.jboss.ejb.client.EJBClientContext@3baeae68, receiver=Remoting connection EJB receiver [connection=org.jboss.ejb.client.remoting.ConnectionPool$PooledConnection@3f310404,channel=jboss.ejb,nodename=euve1234]} Waiting for version handshake message from server
2015-06-21 16:47:51 [Remoting "config-based-ejb-client-endpoint" task-5] INFO remoting:103 - EJBCLIENT000017: Received server version 2 and marshalling strategies [river]
2015-06-21 16:47:51 [GS Desktop Thread 0] INFO remoting:218 - EJBCLIENT000013: Successful version handshake completed for receiver context EJBReceiverContext{clientContext=org.jboss.ejb.client.EJBClientContext@3baeae68, receiver=Remoting connection EJB receiver [connection=org.jboss.ejb.client.remoting.ConnectionPool$PooledConnection@3f310404,channel=jboss.ejb,nodename=euve1234]} on channel Channel ID eb5d763d (outbound) of Remoting connection 25bff644 to euve1234.vserver.de/84.46.96.86:8080
2015-06-21 16:47:51 [Remoting "config-based-ejb-client-endpoint" task-6] TRACE ChannelAssociation:375 - Received message with header 0x8
2015-06-21 16:47:51 [Remoting "config-based-ejb-client-endpoint" task-6] DEBUG RemotingConnectionEJBReceiver:763 - Received module availability report for 11 modules
2015-06-21 16:47:51 [Remoting "config-based-ejb-client-endpoint" task-6] DEBUG RemotingConnectionEJBReceiver:765 - Registering module EJBModuleIdentifier{appName='GSServerEAR-0.0.1', moduleName='GSAuthManagerEjb-0.0.1', distinctName=''} availability for receiver context EJBReceiverContext{clientContext=org.jboss.ejb.client.EJBClientContext@3baeae68, receiver=Remoting connection EJB receiver [connection=org.jboss.ejb.client.remoting.ConnectionPool$PooledConnection@3f310404,channel=jboss.ejb,nodename=euve1234]}
2015-06-21 16:47:51 [Remoting "config-based-ejb-client-endpoint" task-6] DEBUG RemotingConnectionEJBReceiver:765 - Registering module EJBModuleIdentifier{appName='GSServerEAR-0.0.1', moduleName='GSNotificationManagerEjb-0.0.1', distinctName=''} availability for receiver context EJBReceiverContext{clientContext=org.jboss.ejb.client.EJBClientContext@3baeae68, receiver=Remoting connection EJB receiver [connection=org.jboss.ejb.client.remoting.ConnectionPool$PooledConnection@3f310404,channel=jboss.ejb,nodename=euve1234]}
...
2015-06-21 16:47:51 [Remoting "config-based-ejb-client-endpoint" task-6] DEBUG RemotingConnectionEJBReceiver:765 - Registering module EJBModuleIdentifier{appName='GSServerEAR-0.0.1', moduleName='GSServerEAR-0.0.1', distinctName=''} availability for receiver context EJBReceiverContext{clientContext=org.jboss.ejb.client.EJBClientContext@3baeae68, receiver=Remoting connection EJB receiver [connection=org.jboss.ejb.client.remoting.ConnectionPool$PooledConnection@3f310404,channel=jboss.ejb,nodename=euve1234]}
2015-06-21 16:47:51 [GS Desktop Thread 0] DEBUG ConfigBasedEJBClientContextSelector:174 - Registered 1 remoting EJB receivers for EJB client context org.jboss.ejb.client.EJBClientContext@3baeae68
...
2015-06-21 16:47:51 [JavaFX Application Thread] WARN GsTask:38 - API call background task failed
java.lang.IllegalStateException: EJBCLIENT000025: No EJB receiver available for handling [appName:GSServerEAR, moduleName:GSAuthManagerEjb-0.0.1, distinctName:] combination for invocation context org.jboss.ejb.client.EJBClientInvocationContext@63dd58c4
at org.jboss.ejb.client.EJBClientContext.requireEJBReceiver(EJBClientContext.java:774)
at org.jboss.ejb.client.ReceiverInterceptor.handleInvocation(ReceiverInterceptor.java:116)
at org.jboss.ejb.client.EJBClientInvocationContext.sendRequest(EJBClientInvocationContext.java:186)
at org.jboss.ejb.client.EJBInvocationHandler.sendRequestWithPossibleRetries(EJBInvocationHandler.java:255)
at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:200)
at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:183)
at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:146)
at com.sun.proxy.$Proxy7.createSession(Unknown Source)
...
问题可能是由
引起的standalone.xml
配置,并通过观察所有呼叫接收到的所有呼叫的网络流量来确保。 JMS可以工作。javax.jms.ObjectMessage
个。 Session.createObjectMessage(Serializable object)
需要Serializable
,这就是我建议我们在这里使用RMI的原因。如果我错了,请纠正我。
自从我真的陷入困境以来,我非常感谢对此的任何想法和评论。非常感谢提前。
服务器:
@Remote
public interface GsAuthManager {
GsClientSession createSession(String username, String password);
}
@Stateless
public class GsAuthManagerBean implements GsAuthManager {
@Override
public GsClientSession createSession(String username, String password) {
// ...
}
}
WildFly日志:
java:jboss/exported/GSServerEAR/GSAuthManagerEjb-0.0.1/GsAuthManagerBean!de.genesys.server.ejb.auth.GsAuthManager
客户端:
static void initEjbClient(String serverHostname, String username, String password) {
final Properties ejbClientProps = new Properties();
ejbClientProps.put("remote.connections", "default");
ejbClientProps.put("remote.connection.default.port", "8080");
ejbClientProps.put("remote.connection.default.host", serverHostname);
ejbClientProps.put("remote.connection.default.username", username);
ejbClientProps.put("remote.connection.default.password", password);
ejbClientProps.put("remote.connection.default.connect.options.org.xnio.Options.SASL_POLICY_NOANONYMOUS", "false");
ejbClientProps.put("remote.connection.default.connect.options.org.xnio.Options.SASL_DISALLOWED_MECHANISMS", "JBOSS-LOCAL-USER");
ejbClientProps.put("remote.connectionprovider.create.options.org.xnio.Options.SSL_ENABLED", "false");
EJBClientConfiguration clientConfig = new PropertiesBasedEJBClientConfiguration(ejbClientProps);
ContextSelector<EJBClientContext> selector = new ConfigBasedEJBClientContextSelector(clientConfig);
EJBClientContext.setSelector(selector);
}
static GsAuthManager initEjbProxy(String serverHostname, String username, String password) throws NamingException{
Properties props = new Properties();
props.put("jboss.naming.client.ejb.context", true);
props.put("jboss.naming.client.connect.options.org.xnio.Options.SASL_POLICY_NOPLAINTEXT", "false");
props.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");
props.put(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory");
props.put(Context.PROVIDER_URL, "http-remoting://" + serverHostname + ":8080");
props.put(Context.SECURITY_PRINCIPAL, username);
props.put(Context.SECURITY_CREDENTIALS, password);
InitialContext context = new InitialContext(props); // Stripped down, original code keeps a strong reference and closes context on program termination
return (GsAuthManager) context.lookup("ejb:GSServerEAR/GSAuthManagerEjb-0.0.1/GsAuthManagerBean!de.genesys.server.ejb.auth.GsAuthManager");
}
答案 0 :(得分:1)
在部署appName='GSServerEAR-0.0.1'
的日志中,但发生异常时:appName:GSServerEAR
。所以我想,你的EAR文件的运行时(当你部署它时)包含版本,它不应该。