求助:HELLOWORLD EJB入门部署折腾了3天了,吐血啊.

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fishrabbit

发表文章: 1
注册时间: 2007年06月22日 10:47
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求助:HELLOWORLD EJB入门部署折腾了3天了,吐血啊.

发表: 2007年06月22日 10:49

小弟不才,最近在研究EJB.开头的例子HELLOWORLD..看了网上无数例子,总是无法跑通,很多例子本有就有问题.经过3天,终于部署成功,但是无法运行,JNDI出错,实在没有办法了,网上找不到资料,请高手指点下迷途的羔羊.
第一个类:package examples;
import java.rmi.RemoteException;
import javax.ejb.EJBObject;
public interface Hello extends EJBObject {
public String hello() throws RemoteException;
}
第二个类 package examples;
import javax.ejb.SessionContext;
public class HelloBean implements javax.ejb.SessionBean {
private SessionContext ctx;
public void EJBCreate() {
System.out.print("ejbCreate()");
}
public void EJBRemove() {
System.out.print("ejbRemove()");
}
public void EJBActivate() {
System.out.print("ejbActivate()");
}

public void EJBPassivate() {
System.out.print("ejbPassivate");
}
public void setSessionContext(javax.ejb.SessionContext ctx) {
this.ctx = ctx;
}
public String hello() {
System.out.print("hello()");
return "Hello World~!";
}
}
第三个类:package examples;
public interface HelloHome extends javax.ejb.EJBHome{
Hello create()throws java.rmi.RemoteException,javax.ejb.CreateException;
}
XML:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE EJB-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">
<ejb-jar>
<enterprise-beans>
<Session>
<ejb-name>Hello</ejb-name>
<Home>examples.HelloHome</Home>
<Remote>examples.Hello</Remote>
<ejb-class>examples.HelloBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Bean</transaction-type>
</Session>
</enterprise-beans>
</ejb-jar>

打包成HelloWorld.jar 放在JBOSS Deploy 文件夹下...然后运行测试文件:

package examples;

import java.rmi.RemoteException;
import java.util.Properties;

import javax.ejb.CreateException;
import javax.ejb.RemoveException;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;

public class test {
public static void main(String args[]) throws NamingException, RemoteException, CreateException, RemoveException {

Properties props = new Properties();
props.setProperty("java.naming.factory.initial","org.jnp.interfaces.NamingContextFactory");
props.setProperty("java.naming.provider.url","localhost:1099");
props.setProperty("java.naming.factory.url.pkgs","org.jboss.naming");

Context ctx = new InitialContext(props);

Object obj = ctx.lookup("HelloHome");

HelloHome Home = (HelloHome) javax.rmi.PortableRemoteObject.narrow(obj,
HelloHome.class);
Hello hello = Home.create();

System.out.print(hello.hello());
hello.remove();
}
}

部署成功了,但是测试一直出错 Exception in thread "main" javax.naming.NameNotFoundException: HelloHome not bound
at org.jnp.server.NamingServer.getBinding(NamingServer.java:529)
at org.jnp.server.NamingServer.getBinding(NamingServer.java:537)
at org.jnp.server.NamingServer.getObject(NamingServer.java:543)
at org.jnp.server.NamingServer.lookup(NamingServer.java:296)

实在是不行了,请坛子的高手们抽几分钟看下....已经痛苦3天了.