linux＋eclipse+weblogic10.3.2.0开发ejb3实例

我是一个weblogic的初学者，这些天一直在想把有个ejb3放在weblogic上去调用，但遇到了很多问题，经过很多高手的指点后，终于成功的实现了，代码如下：

ejb3的代码
package com.ouruan.ejb3.interfaces;
import javax.ejb.Remote;
@Remote(value=HelloRemoteInterface.class)
public interface HelloRemoteInterface {
public String sayHello();
}

package com.ouruan.ejb3.interfaces;
import javax.ejb.Stateless;
@Stateless(mappedName="HelloRemoteSessionBean")
public class HelloRemoteSessionBean implements HelloRemoteInterface {
@Override
public String sayHello() {
return "无状态的会话bean，远程调用接口！";
}
}

这个Session Bean使用了@Stateless注释指定了该Session Bean是无状态的，需要设置mappedName属性指定该Session Bean的JNDI名

(Weblogic应用服务)客户端代码
import javax.naming.InitialContext;
import javax.naming.NamingException;

import com.ouruan.ejb3.interfaces.HelloRemoteInterface;

public class HelloRemoteTest {

public static void main(String[] args) {
Properties props = new Properties();
props.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
props.put(Context.PROVIDER_URL, "t3://localhost:7001");
try {
InitialContext ctx = new InitialContext(props);
HelloRemoteInterface helloworld = (HelloRemoteInterface) ctx
.lookup("HelloRemoteSessionBean#com.ouruan.ejb3.interfaces.HelloRemoteInterface");
System.out.println(helloworld.sayHello());
} catch (NamingException e) {
e.printStackTrace();
System.out.println(e.getMessage());
}
}
}
其中 Context.INITIAL_CONTEXT_FACTORY指：定到目录服务的连接工厂
Context.PROVIDER_URL指：目录服务提供者URL，

注：lookup方法里面的参数是从weblogic里面获取到的名字,如果用HelloRemoteSessionBean/remote会抛出异常：
javax.naming.NameNotFoundException: While trying to lookup 'HelloRemoteSessionBean.remote' didn't find subcontext 'HelloRemoteSessionBean'. Resolved '' [Root exception is javax.naming.NameNotFoundException: While trying to lookup 'HelloRemoteSessionBean.remote' didn't find subcontext 'HelloRemoteSessionBean'. Resolved '']; remaining name 'HelloRemoteSessionBean/remote'While trying to lookup 'HelloRemoteSessionBean.remote' didn't find subcontext 'HelloRemoteSessionBean'. Resolved ''

at weblogic.rjvm.ResponseImpl.unmarshalReturn(ResponseImpl.java:234)
at weblogic.rmi.cluster.ClusterableRemoteRef.invoke(ClusterableRemoteRef.java:348)
at weblogic.rmi.cluster.ClusterableRemoteRef.invoke(ClusterableRemoteRef.java:259)
at weblogic.jndi.internal.ServerNamingNode_1032_WLStub.lookup(Unknown Source)
at weblogic.jndi.internal.WLContextImpl.lookup(WLContextImpl.java:405)
at weblogic.jndi.internal.WLContextImpl.lookup(WLContextImpl.java:393)
at javax.naming.InitialContext.lookup(InitialContext.java:392)
at com.ouruan.ejb3.test.HelloRemoteTest.main(HelloRemoteTest.java:20)
Caused by: javax.naming.NameNotFoundException: While trying to lookup 'HelloRemoteSessionBean.remote' didn't find subcontext 'HelloRemoteSessionBean'. Resolved ''
at weblogic.jndi.internal.BasicNamingNode.newNameNotFoundException(BasicNamingNode.java:1139)
at weblogic.jndi.internal.BasicNamingNode.lookupHere(BasicNamingNode.java:247)
at weblogic.jndi.internal.ServerNamingNode.lookupHere(ServerNamingNode.java:182)
at weblogic.jndi.internal.BasicNamingNode.lookup(BasicNamingNode.java:206)
at weblogic.jndi.internal.RootNamingNode_WLSkel.invoke(Unknown Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:589)
at weblogic.rmi.cluster.ClusterableServerRef.invoke(ClusterableServerRef.java:230)
at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:477)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:147)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:473)
at weblogic.rmi.internal.wls.WLSExecuteRequest.run(WLSExecuteRequest.java:118)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
lookup方法的参数可以通过：http://localhost:7001/console/consolejndi.portal?_nfpb=true&_pageLabel=JNDIHomePage&server=AdminServer 这个路径找到我们部署在weblogic上面的ejb项目，点开我们自己的ejb项目找到我们的接口类将：概述-->绑定名copy下来作为lookup方法的参数就可以了！

注：同时还需要将导入weblogic.jar添加的到项目中去，如果没有这个jar包会抛出java.io.EOFException

再运行HelloRemoteTest就可以了


（Jboss应用服务器）客户端代码

public class HelloRemoteTest {

public static void main(String[] args) {
Properties props = new Properties();
props.setProperty("java.naming.factory.initial", "org.jnp.interfaces.NamingContextFactory");
props.setProperty("java.naming.provider.url", "localhost:1099");
try {
InitialContext ctx = new InitialContext(props);
HelloRemoteInterface helloworld = (HelloRemoteInterface) ctx
.lookup("HelloRemoteSessionBean/remote");
System.out.println(helloworld.sayHello());
} catch (NamingException e) {
e.printStackTrace();
System.out.println(e.getMessage());
}
}
}