I'm trying to develop my first EJB with an Example I found, I have the next mistake:
Exception in thread "main" java.lang.IllegalStateException: No EJB receiver available for handling [appName:,modulename:HelloWorldSessionBean,distinctname:] combination for invocation context org.jboss.ejb.client.EJBClientInvocationContext@41408b80
at org.jboss.ejb.client.EJBClientContext.requireEJBReceiver(EJBClientContext.java:584)
at org.jboss.ejb.client.ReceiverInterceptor.handleInvocation(ReceiverInterceptor.java:119)
at org.jboss.ejb.client.EJBClientInvocationContext.sendRequest(EJBClientInvocationContext.java:181)
at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:136)
at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:121)
at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:104)
at $Proxy0.sayHello(Unknown Source)
at com.ibytecode.client.EJBApplicationClient.main(EJBApplicationClient.java:16)
I use JBOSS 7.1, and the code is this:
HelloWorld.java
package com.ibytecode.business;
import javax.ejb.Remote;
@Remote
public interface HelloWorld {
public String sayHello();
}
HelloWorldBean.java
package com.ibytecode.businesslogic;
import com.ibytecode.business.HelloWorld;
import javax.ejb.Stateless;
/**
* Session Bean implementation class HelloWorldBean
*/
@Stateless
public class HelloWorldBean implements HelloWorld {
/**
* Default constructor.
*/
public HelloWorldBean() {
}
public String sayHello() {
return "Hello World !!!";
}
}
EJBApplicationClient.java:
package com.ibytecode.client;
import javax.naming.Context;
import javax.naming.NamingException;
import com.ibytecode.business.HelloWorld;
import com.ibytecode.businesslogic.HelloWorldBean;
import com.ibytecode.clientutility.ClientUtility;
public class EJBApplicationClient {
public static void main(String[] args) {
// TODO Auto-generated method stub
HelloWorld bean = doLookup();
System.out.println(bean.sayHello()); // 4. Call business logic
}
private static HelloWorld doLookup() {
Context context = null;
HelloWorld bean = null;
try {
// 1. Obtaining Context
context = ClientUtility.getInitialContext();
// 2. Generate JNDI Lookup name
String lookupName = getLookupName();
// 3. Lookup and cast
bean = (HelloWorld) context.lookup(lookupName);
} catch (NamingException e) {
e.printStackTrace();
}
return bean;
}
private static String getLookupName() {
/*
The app name is the EAR name of the deployed EJB without .ear suffix.
Since we haven't deployed the application as a .ear,
the app name for us will be an empty string
*/
String appName = "";
/* The module name is the JAR name of the deployed EJB
without the .jar suffix.
*/
String moduleName = "HelloWorldSessionBean";
/*AS7 allows each deployment to have an (optional) distinct name.
This can be an empty string if distinct name is not specified.
*/
String distinctName = "";
// The EJB bean implementation class name
String beanName = HelloWorldBean.class.getSimpleName();
// Fully qualified remote interface name
final String interfaceName = HelloWorld.class.getName();
// Create a look up string name
String name = "ejb:" + appName + "/" + moduleName + "/" +
distinctName + "/" + beanName + "!" + interfaceName;
return name;
}
}
ClientUtility.java
package com.ibytecode.clientutility;
import java.util.Properties;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
public class ClientUtility {
private static Context initialContext;
private static final String PKG_INTERFACES = "org.jboss.ejb.client.naming";
public static Context getInitialContext() throws NamingException {
if (initialContext == null) {
Properties properties = new Properties();
properties.put("jboss.naming.client.ejb.context", true);
properties.put(Context.URL_PKG_PREFIXES, PKG_INTERFACES);
initialContext = new InitialContext(properties);
}
return initialContext;
}
}
properties.file:
remote.connectionprovider.create.options.org.xnio.Options.SSL_ENABLED=false
remote.connections=default
remote.connection.default.host=localhost
remote.connection.default.port = 4447
remote.connection.default.connect.options.org.xnio.Options.SASL_POLICY_NOANONYMOUS=false
This is what I have. Why I have this?. Thanks so much. Regards
