如何从容器外部访问Websphere 7.0中定义的JNDI名称空间?

时间:2012-03-16 15:18:39

标签: java jndi websphere-7

我想使用iiop协议从Container的外部查找Websphere aplication Server 7.0上定义的资源,如下所示:

(RMI客户端)Test.jar的Java代码:

public static void main(String[] args){
Hashtable<Object, Object> properties = new Hashtable<Object, Object>();
properties.put(Context.INITIAL_CONTEXT_FACTORY, 
        "com.ibm.websphere.naming.WsnInitialContextFactory"); 
           properties.put(Context.PROVIDER_URL, "iiop://localhost:2809"); 
InitialContext intCt;
try {
       InitialContext initCtx = new InitialContext(properties);
       Object obj = intCt.lookup(JNDI_NAME);
     }catch (NamingException namingE) {
            System.out.println("Naming Exception occurred :");
            namingE.printStackTrace();
        }   
}

调用Test.jar的Cmmand文件:

set appClassPath=C:\WebSphere\AppServer7.0\deploytool\itp\plugins\com.ibm.websphere.v7_7.0.1.v20090422_1423\wasJars\naming.jar;C:\WebSphere\AppServer7.0\deploytool\itp\plugins\com.ibm.websphere.v7_7.0.1.v20090422_1423\wasJars\namingclient.jar;C:\WebSphere\AppServer7.0\properties;C:\Batch\CommandFiles\JobServer\Test.jar

C:\WebSphere\AppServer7.0\java\jre\bin\java -jar -cp "%appClassPath%" C:\Batch\CommandFiles\JobServer\Test.jar %Parameters%  

注意:请注意,我在本地machin和bootstrap主机上运行客户端是:localhost,端口是2809。

在从命令文件运行Test.jar代码时,我收到以下错误:

javax.naming.NoInitialContextException: Failed to create InitialContext using factory specified in hashtable {java.naming.provider.url=iiop://localhost:2809, java.naming.factory.initial=com.ibm.websphere.naming.WsnInitialContextFactory} [Root exception is java.lang.NullPointerException]
    at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:243)
    at javax.naming.InitialContext.initializeDefaultInitCtx(InitialContext.java:327)
    at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:357)
    at javax.naming.InitialContext.internalInit(InitialContext.java:295)
    at javax.naming.InitialContext.(InitialContext.java:212)
    at com.uuic.ets.rmi.server.client.Client.main(Client.java:130)
Caused by: java.lang.NullPointerException
    at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:235)
    ... 5 more

我不知道为什么这段代码无法实例化InitialContext(Hashmap env)。此相同的代码在Websphere应用程序服务器版本5.1中运行,但在Websphere应用程序服务器版本7.0中存在问题。

1 个答案:

答案 0 :(得分:1)

不支持使用WAS_HOME / deploytool中的JAR作为类路径。尝试将记录的EJB thinclient与WAS_HOME / runtimes / com.ibm.ws.ejb.thinclient_7.0.0.jar一起使用。