Question

我创建了一个Web项目并创建了一个EJB（接口：LibrarySessionBeanRemote.java和class：LibrarySessionBean）。我已经在JBoss 7.1服务器上部署了war文件。以下是两个文件的代码：

LibrarySessionBeanRemote.java

package com.practice.stateless;

import java.util.List;

import javax.ejb.Remote;

@Remote
public interface LibrarySessionBeanRemote {

    void addBook(String bookName);

    List<String> getBooks();

}

LibrarySessionBean.java

package com.practice.stateless;

import java.util.ArrayList;
import java.util.List;

import javax.ejb.Stateless;

@Stateless
public class LibrarySessionBean implements LibrarySessionBeanRemote {

    List<String> bookShelf;

    public LibrarySessionBean() {
        bookShelf = new ArrayList<String>();
    }

    @Override
    public void addBook(final String bookName) {
        bookShelf.add(bookName);
    }

    @Override
    public List<String> getBooks() {
        return bookShelf;
    }
}

我试图在main方法中本地调用EJB，下面是代码：

LibrarySessionBeanTest2

package com.practice.stateless.test;

import java.util.Properties;

import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;

import com.practice.stateless.LibrarySessionBean;
import com.practice.stateless.LibrarySessionBeanRemote;

public class LibrarySessionBeanTest2 {

    public static LibrarySessionBeanRemote doLookup() throws NamingException {
        final Properties jndiProp = new Properties();
        jndiProp.put(Context.INITIAL_CONTEXT_FACTORY,
                "org.jboss.naming.remote.client.InitialContextFactory");
        jndiProp.put(Context.PROVIDER_URL, "remote://localhost:4447");
        jndiProp.put(Context.SECURITY_PRINCIPAL, "username");
        jndiProp.put(Context.SECURITY_CREDENTIALS, "password");

        final String appName = "";

        final String moduleName = "StatelessExample";

        final String distinctName = "";

        final String beanName = LibrarySessionBean.class.getSimpleName();

        final String viewClassName = LibrarySessionBeanRemote.class.getName();

        final Context ctx = new InitialContext(jndiProp);
        final String jndiName = "ejb:" + appName + "/" + moduleName + "/"
                + distinctName + "/" + beanName + "!" + viewClassName;
        // jndiName = "java:global/StatelessExample/LibrarySessionBean";
        return (LibrarySessionBeanRemote) ctx.lookup(jndiName);

    }

    public static void invokeStatelessBean() throws NamingException {
        final LibrarySessionBeanRemote librarySessionBeanRemote = doLookup();
        librarySessionBeanRemote.addBook("book 1");
        for (final String book : librarySessionBeanRemote.getBooks()) {
            System.out.println(book);
        }
    }

    public static void main(final String[] args) {
        try {
            invokeStatelessBean();
        } catch (final NamingException e) {
            e.printStackTrace();
        }
    }

}

运行LibrarySessionBeanTest2类后，我收到以下错误：

javax.naming.NameNotFoundException: ejb:/StatelessExample//LibrarySessionBean!com.practice.stateless.LibrarySessionBeanRemote -- service jboss.naming.context.java.jboss.exported.ejb:.StatelessExample."LibrarySessionBean!com.practice.stateless.LibrarySessionBeanRemote"
    at org.jboss.as.naming.ServiceBasedNamingStore.lookup(ServiceBasedNamingStore.java:97)
    at org.jboss.as.naming.NamingContext.lookup(NamingContext.java:178)
    at org.jboss.naming.remote.protocol.v1.Protocol$1.handleServerMessage(Protocol.java:127)
    at org.jboss.naming.remote.protocol.v1.RemoteNamingServerV1$MessageReciever$1.run(RemoteNamingServerV1.java:73)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

我是EJB 3的新手，所以我不知道我是否正确使用JNDI名称。如果有人可以帮我解决这个问题，那将会很棒。

Answer 1

现在通过添加另外两个属性修复了问题，请在下面找到它们：

jndiProp.put("jboss.naming.client.ejb.context", true);
jndiProp.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");

EJB 3本地测试，获取错误

1 个答案: