请问如何用jb8+jboss3.x测试ejb?

[xiaoyuzi]

--------------bean--------
package converterejb;

import javax.ejb.*;

public class ConverterBean implements SessionBean {
SessionContext sessionContext;
public void ejbCreate() throws CreateException {
/**@todo Complete this method*/
}
public void ejbRemove() {
/**@todo Complete this method*/
}
public void ejbActivate() {
/**@todo Complete this method*/
}
public void ejbPassivate() {
/**@todo Complete this method*/
}
public void setSessionContext(SessionContext sessionContext) {
this.sessionContext = sessionContext;
}
public double DollarToRMB(double dollars) {
/**@todo Complete this method*/
return dollars * 8.3000;
}
public double RMBToDollar(double RMB) {
/**@todo Complete this method*/
return RMB / 8.3000;
}
}
-------------------------------------------
------------------remote-------------------------
package converterejb;

import javax.ejb.*;
import java.util.*;
import java.rmi.*;

public interface Converter extends javax.ejb.EJBObject {
public double DollarToRMB(double dollars) throws RemoteException;
public double RMBToDollar(double RMB) throws RemoteException;
}
---------------------------------------------------
-----------------home-----------------
package converterejb;

import javax.ejb.*;
import java.util.*;
import java.rmi.*;

public interface ConverterHome extends javax.ejb.EJBHome {
public Converter create() throws CreateException, RemoteException;
}
-------------------------------------------
测试客户端是：
package converterejb;

import javax.naming.*;
import javax.rmi.PortableRemoteObject;
import converterejb.Converter;
import converterejb.ConverterHome;

public class ConverterClient extends Object {
private static final String ERROR_NULL_REMOTE = "Remote interface reference is null. It must be created by calling one of the Home interface methods first.";
private static final int MAX_OUTPUT_LINE_LENGTH = 100;
private boolean logging = true;
private ConverterHome converterHome = null;
private Converter converter = null;

//Construct the EJB test client
public ConverterClient() {
initialize();
}

public void initialize() {
long startTime = 0;
if (logging) {
log("Initializing bean access.");
startTime = System.currentTimeMillis();
}

try {
//get naming context
Context context = getJBossInitialContext();

//look up jndi name
Object ref = context.lookup("Converter");
//look up jndi name and cast to Home interface
converterHome = (ConverterHome) PortableRemoteObject.narrow(ref, ConverterHome.class);
if (logging) {
long endTime = System.currentTimeMillis();
log("Succeeded initializing local bean access through Local Home interface.");
log("Execution time: " + (endTime - startTime) + " ms.");
}
}
catch(Exception e) {
if (logging) {
log("Failed initializing bean access.");
}
e.printStackTrace();
}
}
private javax.naming.Context getJBossInitialContext() throws NamingException {
java.util.Hashtable JNDIParm = new java.util.Hashtable();
JNDIParm.put(Context.PROVIDER_URL, "localhost");
JNDIParm.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
return new InitialContext(JNDIParm);
}


//----------------------------------------------------------------------------
// Methods that use Home interface methods to generate a Remote interface reference
//----------------------------------------------------------------------------

public Converter create() {
long startTime = 0;
if (logging) {
log("Calling create()");
startTime = System.currentTimeMillis();
}
try {
converter = converterHome.create();
if (logging) {
long endTime = System.currentTimeMillis();
log("Succeeded: create()");
log("Execution time: " + (endTime - startTime) + " ms.");
}
}
catch(Exception e) {
if (logging) {
log("Failed: create()");
}
e.printStackTrace();
}

if (logging) {
log("Return value from create(): " + converter + ".");
}
return converter;
}

//----------------------------------------------------------------------------
// Methods that use Remote interface methods to access data through the bean
//----------------------------------------------------------------------------

public double DollarToRMB(double dollars) {
double returnValue = 0f;

if (converter == null) {
System.out.println("Error in DollarToRMB(): " + ERROR_NULL_REMOTE);
return returnValue;
}

long startTime = 0;
if (logging) {
log("Calling DollarToRMB(" + dollars + ")");
startTime = System.currentTimeMillis();
}

try {
returnValue = converter.DollarToRMB(dollars);
if (logging) {
long endTime = System.currentTimeMillis();
log("Succeeded: DollarToRMB(" + dollars + ")");
log("Execution time: " + (endTime - startTime) + " ms.");
}
}
catch(Exception e) {
if (logging) {
log("Failed: DollarToRMB(" + dollars + ")");
}
e.printStackTrace();
}

if (logging) {
log("Return value from DollarToRMB(" + dollars + "): " + returnValue + ".");
}
return returnValue;
}

public double RMBToDollar(double RMB) {
double returnValue = 0f;

if (converter == null) {
System.out.println("Error in RMBToDollar(): " + ERROR_NULL_REMOTE);
return returnValue;
}

long startTime = 0;
if (logging) {
log("Calling RMBToDollar(" + RMB + ")");
startTime = System.currentTimeMillis();
}

try {
returnValue = converter.RMBToDollar(RMB);
if (logging) {
long endTime = System.currentTimeMillis();
log("Succeeded: RMBToDollar(" + RMB + ")");
log("Execution time: " + (endTime - startTime) + " ms.");
}
}
catch(Exception e) {
if (logging) {
log("Failed: RMBToDollar(" + RMB + ")");
}
e.printStackTrace();
}

if (logging) {
log("Return value from RMBToDollar(" + RMB + "): " + returnValue + ".");
}
return returnValue;
}

public void executeRemoteCallsWithDefaultArguments() {
if (converter == null) {
System.out.println("Error in executeRemoteCallsWithDefaultArguments(): " + ERROR_NULL_REMOTE);
return ;
}
DollarToRMB(0f);
RMBToDollar(0f);
}

//----------------------------------------------------------------------------
// Utility Methods
//----------------------------------------------------------------------------

private void log(String message) {
if (message == null) {
System.out.println("-- null");
return ;
}
if (message.length() > MAX_OUTPUT_LINE_LENGTH) {
System.out.println("-- " + message.substring(0, MAX_OUTPUT_LINE_LENGTH) + " ...");
}
else {
System.out.println("-- " + message);
}
}
//Main method

public static void main(String[] args) {
try{
ConverterClient client = new ConverterClient();
Converter nowConverter = client.create();
double amount = nowConverter.DollarToRMB(100.00);
System.out.println(String.valueOf(amount));
}
catch (Exception e){
System.out.println("exception:"+e.toString());
}


}
}

我就在jb8的run->configurations里设了一个server,但vm和application参数什么都没填，用这个启动了jboss，另外一个就是生成测试程序自动生成的configuration，运行他，出现了错误，-- Failed: create()

-- Return value from create(): null.

exception:java.lang.NullPointerException

[xiaoyuzi]

具体的错误是：- Initializing bean access.

javax.naming.NameNotFoundException: Converter not bound

at org.jnp.server.NamingServer.getBinding(NamingServer.java:495)

at org.jnp.server.NamingServer.getBinding(NamingServer.java:503)

at org.jnp.server.NamingServer.getObject(NamingServer.java:509)

at org.jnp.server.NamingServer.lookup(NamingServer.java:282)-- Failed initializing bean access.



at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:324)

at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)

at sun.rmi.transport.Transport$1.run(Transport.java:148)

at java.security.AccessController.doPrivileged(Native Method)

at sun.rmi.transport.Transport.serviceCall(Transport.java:144)

at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)

at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)

at java.lang.Thread.run(Thread.java:536)

at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)

at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)

at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:133)

at org.jnp.server.NamingServer_Stub.lookup(Unknown Source)

at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:484)

at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:463)

at javax.naming.InitialContext.lookup(InitialContext.java:347)

at converterejb.ConverterClient.initialize(ConverterClient.java:32)

at converterejb.ConverterClient.<init>(ConverterClient.java:17)

at converterejb.ConverterClient.main(ConverterClient.java:190)

-- Calling create()

java.lang.NullPointerException

at converterejb.ConverterClient.create(ConverterClient.java:67)

at converterejb.ConverterClient.main(ConverterClient.java:191)

-- Failed: create()

-- Return value from create(): null.

exception:java.lang.NullPointerException

[孤独求败1978]

不是没好心人，是大家都不怎么会

[xiaoyuzi]

哦，只有自己摸索了，java好麻烦啊，每一个部分都要浪费很多时间，怎么就没有比较系统的教程和参考书啊

[xiaoyuzi]

没有好心人么

[xiaoyuzi]

自己搞定了，分都送给lz485078你了