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我试图通过客户端访问远程Wildfly 10.x服务器上的EJB，但我无法让它工作。再次从远程客户端调用EJB
我已经看到this，this,this,this和许多其他帖子，但它仍然不起作用。
根据上述帖子中的建议，我有两个Java代码版本引发“无法注册EJB”或“无法连接到服务器”。
也许问题出在服务器配置上，但我不是这里的专家。
我真的很感激任何帮助。
我部署的EJB上WildFly 10.1远程服务器：
java:global/Remote/EJB-Remote-Demo-ejb-1.0/CalculatorBean!com.maggioni.Stateless2.RemoteCalculator
java:app/EJB-Remote-Demo-ejb-1.0/CalculatorBean!com.maggioni.Stateless2.RemoteCalculator
java:module/CalculatorBean!com.maggioni.Stateless2.RemoteCalculator
java:jboss/exported/Remote/EJB-Remote-Demo-ejb-1.0/CalculatorBean!com.maggioni.Stateless2.RemoteCalculator
java:global/Remote/EJB-Remote-Demo-ejb-1.0/CalculatorBean
java:app/EJB-Remote-Demo-ejb-1.0/CalculatorBean
java:module/CalculatorBean
服务器配置：
<subsystem xmlns="urn:jboss:domain:remoting:3.0">
<endpoint/>
<http-connector name="http-remoting-connector" connector-ref="default" security-realm="ApplicationRealm"/>
</subsystem>
POM的配置：
<dependency>
<groupId>org.wildfly</groupId>
<artifactId>wildfly-ejb-client-bom</artifactId>
<version>10.1.0.Final</version>
<type>pom</type>
</dependency>
我有现在的两个版本我码。
版本1：
private static RemoteCalculator lookupRemoteStatelessCalculator() throws NamingException {
final Hashtable jndiProperties = new Hashtable<>();
jndiProperties.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");
jndiProperties.put("jboss.naming.client.ejb.context", true);
final Context context = new InitialContext(jndiProperties);
String appName = "Remote/"
String moduleName = "EJB-Remote-Demo-ejb-1.0/";
String beanName = CalculatorBean.class.getSimpleName();
String viewClassName = RemoteCalculator.class.getName();
final String jndiname = "ejb:" + appName + moduleName + "/" + beanName + "!" + viewClassName;
System.out.println("jndiname is : " + jndiname);
return (RemoteCalculator) context.lookup(jndiname);
}
这个版本是引发错误“无法注册一个EJB接收器”：
Apr 21, 2017 10:44:47 AM org.jboss.ejb.client.remoting.ConfigBasedEJBClientContextSelector setupEJBReceivers
WARN: Could not register a EJB receiver for connection to <myEnvironmentNumber>.jelastic.dogado.eu:4447
java.net.ConnectException: Connection refused: no further information
........
Exception in thread "main" java.lang.IllegalStateException: EJBCLIENT000025: No EJB receiver available for handling [appName:Remote, moduleName:EJB-Remote-Demo-ejb-1.0, distinctName:] combination for invocation context [email protected]
at org.jboss.ejb.client.EJBClientContext.requireEJBReceiver(EJBClientContext.java:798)
版本2：
private static RemoteCalculator lookupRemoteStatelessCalculator() throws NamingException {
Properties jndiProperties = new Properties();
jndiProperties.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");
jndiProperties.put(javax.naming.Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory");
jndiProperties.put(javax.naming.Context.PROVIDER_URL, "http-remoting://<myEnvironmentNumber>.jelastic.dogado.eu:4447");
jndiProperties.put(javax.naming.Context.SECURITY_PRINCIPAL, "app");
jndiProperties.put(javax.naming.Context.SECURITY_CREDENTIALS, "app");
jndiProperties.put("jboss.naming.client.ejb.context", true);
final Context context = new InitialContext(jndiProperties);
String appName = "Remote/";
String moduleName = "EJB-Remote-Demo-ejb-1.0/";
String beanName = CalculatorBean.class.getSimpleName();
String viewClassName = RemoteCalculator.class.getName();
final String jndiname = appName + moduleName + beanName + "!" + viewClassName;
System.out.println("jndiname is : " + jndiname);
return (RemoteCalculator) context.lookup(jndiname);
}
这个版本是引发错误“无法连接到任何服务器”：
Apr 21, 2017 9:42:10 AM org.xnio.Xnio <clinit>
INFO: XNIO version 3.4.0.Final
Apr 21, 2017 9:42:10 AM org.xnio.nio.NioXnio <clinit>
INFO: XNIO NIO Implementation Version 3.4.0.Final
Apr 21, 2017 9:42:11 AM org.jboss.remoting3.EndpointImpl <clinit>
INFO: JBoss Remoting version 4.0.21.Final
jndiname is : Remote/EJB-Remote-Demo-ejb-1.0/CalculatorBean!com.maggioni.Stateless2.RemoteCalculator
Exception in thread "main" javax.naming.CommunicationException: Failed to connect to any server. Servers tried: [http-remoting://<myEnvironmentNumber>.jelastic.dogado.eu:4447 (java.net.ConnectException: Connection refused: no further information)]
两个版本的jboss-ejb-client.properties正在寻找这样的：
remote.connectionprovider.create.options.org.xnio.Options.SSL_ENABLED=false
remote.connections=default
remote.connection.default.connect.options.org.xnio.Options.SASL_POLICY_NOANONYMOUS=false
remote.connection.default.connect.options.org.xnio.Options.SASL_POLICY_NOPLAINTEXT=false
remote.connection.default.host=<myEnvironmentNumber>.jelastic.dogado.eu
remote.connection.default.port = 4447
remote.connection.default.username=app
remote.connection.default.password=app
编辑：
我想这个问题可能与用户配置WildFly。不幸的是，我不能使用脚本来设置用户，所以我必须直接将它输入到application-users.properties中。
假设我想设置一个用户名= MyUser和一个Password = MyUser应该看起来像username = HEX（MD5（MyUser'：'realm'：'MyUser））？
默认情况下，WildFly使用8080作为远程处理端口。看看https://docs.jboss.org/author/display/WFLY10/EJB+invocations+from+a+remote+client+using+JNDI –
你是否启用了公共IP https://docs.jelastic.com/公共IPv4的？ – Ruslan
@FedericoSierra将端口更改为8080显示以下错误： 线程“main”中的异常javax.naming.AuthenticationException：无法连接到任何服务器。尝试使用服务器：[http-remoting：// .jelastic.dogado.eu：8080（身份验证失败：所有可用的身份验证机制失败： JBOSS-LOCAL-USER：javax.security.sasl.SaslException：无法读取服务器质询[引起java.io.FileNotFoundException：\ opt \ repo \ versions \ 10.1 \ standalone \ tmp \ auth \ local7673066471051300535.challenge（Das System kann den angegebenen Pfad nicht finden）] –
ken