我们开发了一个培训应用程序，其中包含与EJB通信的独立Java客户端。工作设置包括Windows 7上的JBoss AS 7.1和通过/bin/add-user.bat创建的应用程序用户。
客户端编码如下：
Properties jndiProps = new Properties();
jndiProps.put(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory");
jndiProps.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");
jndiProps.put("jboss.naming.client.ejb.context", true);
jndiProps.put(Context.PROVIDER_URL, "remote://localhost:4447");
jndiProps.put(Context.SECURITY_PRINCIPAL, "user");
jndiProps.put(Context.SECURITY_CREDENTIALS, "xxx");
Context ctx = new InitialContext(jndiProps);
MyBeanRemote myBean = (MyBeanRemote) ctx.lookup("ejb:/training//MyBean!mypackage.MyBeanRemote");
String result = myBean.greet("John");
客户端是在类路径中使用jboss-client.jar启动的。
现在我们尝试使用WildFly 8.1而不是成功部署，但客户端失败了
Exception in thread "main" java.lang.IllegalStateException: EJBCLIENT000025: No EJB receiver available for handling [appName:, moduleName:syjeews, distinctName:] combination for invocation context org.jboss.ejb.client.EJBClientInvocationContext@6e7d3146
将JNDI查找名称更改为在部署期间打印出来的内容（例如java:global/training/MyBean!mypackage.MyBeanRemote）导致
Exception in thread "main" javax.naming.CommunicationException: Failed to connect to any server. Servers tried: [remote://localhost:4447 (java.net.ConnectException: Connection refused: no further information)]
在谷歌搜索了一段时间之后，我们对SO上的几篇文章（例如this或that）或samples或Wildfly Developer Guide进行了论述，但所有替代方案，可能是最小的JNDI属性或通过ClientContext的扩展配置都没有使它工作。
所以我的问题是，需要做些什么来迁移上面的代码/配置才能在WildFly下运行它？
注意：这不是生产代码，因此安全性不是问题 - 如果我可以简化整个配置，那很好 - 它应该只演示如何使用独立Java程序中的EJB远程接口。
你需要做两个改变
而不是使用“remote：// localhost：4447”使用“http-remoting：// localhost：8080”
jndiProps.put(Context.PROVIDER_URL, "http-remoting://localhost:8080");
在代码中配置jndi属性时，查找名称不应包含ejb:
MyBeanRemote myBean = (MyBeanRemote) ctx.lookup("/training//MyBean!mypackage.MyBeanRemote");
这个解决方案经过测试和运行
提供者URL应该是http-remoting://localhost:8080而不是remote://localhost:4447
我正在使用：
这对我有用：
Properties jndiProperties = new Properties();
jndiProperties.put(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory");
jndiProperties.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");
jndiProperties.put("jboss.naming.client.ejb.context", true);
jndiProperties.put(Context.PROVIDER_URL, "http-remoting://localhost:8080"); //System.getProperty(Context.PROVIDER_URL, "http-remoting://localhost:8080"));
/* jndiProperties.put(Context.SECURITY_PRINCIPAL, "user");
jndiProperties.put(Context.SECURITY_CREDENTIALS, "xxx");*/
InitialContext context = new InitialContext(jndiProperties);
MyFirstEJBRemote ejb = (MyFirstEJBRemote) context.lookup("/EJBProjectName/MyFirstEJB!src.MyFirstEJBRemote");
希望能帮助到你！
这是我的项目名为“MyFirstEJBProject”。代码里面有一些注意事项可以提供帮助。
package src.ejb;
import javax.ejb.Stateless;
/**
* Session Bean implementation class MyFirstEJB
*/
@Stateless
public class MyFirstEJB implements MyFirstEJBRemote {
public MyFirstEJB() {
}
@Override
public String helloWorld() {
return "Hello World EJB";
}
}
package src.ejb;
import javax.ejb.Remote;
@Remote
public interface MyFirstEJBRemote {
public String helloWorld();
}
package src.clientTest;
import java.util.Properties;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import src.ejb.MyFirstEJB;
import src.ejb.MyFirstEJBRemote;
public class EJBClient {
public static void main(String[] args) throws NamingException {
/**JNDI or Java Naming and Directory Interface.
* When JNDI constructs an initial context, the context's environment
* is initialized with properties defined in the environment parameter
* passed to the constructor, the system properties, the applet parameters,
* and the application resource files.
*
* JNDI applications need a way to communicate various preferences
* and properties that define the environment in which naming and
* directory services are accessed.
* */
Properties jndiProperties = new Properties();
jndiProperties.put(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory");
jndiProperties.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");
jndiProperties.put("jboss.naming.client.ejb.context", true);
jndiProperties.put(Context.PROVIDER_URL, "http-remoting://localhost:8080");
/* jndiProperties.put(Context.SECURITY_PRINCIPAL, "user");
jndiProperties.put(Context.SECURITY_CREDENTIALS, "xxx");*/
/**Context For JNDI**/
InitialContext context = new InitialContext(jndiProperties);
/**The nameOfEJB appears on the console when the server is starting up.**/
String nameOfEJB = "/MyFirstEJBProject/MyFirstEJB!src.ejb.MyFirstEJBRemote";
/**The Method .lookup("") search for EJB by name**/
MyFirstEJBRemote ejb = (MyFirstEJBRemote) context.lookup(nameOfEJB);
System.out.println(ejb.helloWorld());
System.out.println("/** =============== 2º TEST ===============**/");
/**getting a EJB name by a private Method.**/
String nameOfEJB_2 = getEJBName("", "MyFirstEJBProject", "",
MyFirstEJB.class.getSimpleName(), MyFirstEJBRemote.class.getName());
MyFirstEJBRemote ejb_2 = (MyFirstEJBRemote) context.lookup(nameOfEJB_2);
System.out.println(ejb_2.helloWorld());
}
private static String getEJBName(String nameofAppEAR, String nameOfProjectModulo,
String distinctNameOfProject, String classBeanSimpleName, String classInterfaceName){
/**Return a object name for search on JNDI */
String finalNameOfEJB = nameofAppEAR + "/" + nameOfProjectModulo + "/" + distinctNameOfProject +
"/" + classBeanSimpleName + "!" + classInterfaceName;
return finalNameOfEJB;
/**Ex:
String nameofAppEAR= ""; // EAR (if there is)
String nameOfProjectModulo= "MyFirstEJBProject";
String distinctNameOfProject= ""; // Alias (if there is)
String classBeanSimpleName= MyFirstEJB.class.getSimpleName();
String classInterfaceName= MyFirstEJBRemote.class.getName();
String finalNameOfEJB = "" + "/" + "MyFirstEJBProject" + "/" + "" +
"/" + MyFirstEJB.class.getSimpleName() + "!" + MyFirstEJBRemote.class.getName();
The nameOfEJB appears on the console when the server is starting up:
String nameOfEJB = "/MyFirstEJBProject/MyFirstEJB!src.ejb.MyFirstEJBRemote";
*/
}
}
注意：我使用的是Wildfly（JBoss），因此需要在wildfly-10.0.0.Final \ bin \ client \文件夹中导入jboss-client.jar。