spring 调用远程ejb-优快云博客

本文介绍了两种远程服务调用的方法：一是通过Spring框架配置文件实现远程服务的查找与调用；二是直接使用JNDI API进行服务定位及调用。这两种方法均可用于Java环境中远程服务的交互。

使用了2个方法

1 使用配置

<bean id="remoteHelloJndiTemplate" class="org.springframework.jndi.JndiTemplate">
<property name="environment">  
 <props>  
  <prop key="java.naming.factory.initial">org.jnp.interfaces.NamingContextFactory</prop>  
  <prop key="java.naming.provider.url">jnp://localhost:1099</prop>  
  <prop key="java.naming.factory.url.pkgs">org.jnp.interfaces:org.jboss.naming</prop>  
 </props>  
</property>
</bean>    
<bean id="remoteHello"  class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiTemplate" ref="remoteHelloJndiTemplate" />
<property name="jndiName" value="TestServiceBean/remote" />
</bean>

调用代码

		System.out.println("call hello begin");
		try
		{
		    {
				TestService svc = (TestService) SpringContextHolder.getBean("remoteHello");
				if ( svc != null )
				{
				    System.out.println("getBean Ok!");
				    System.out.println(svc.hello("abc"));
				}
		    }
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
		System.out.println("call hello end");

方法2

调用代码

	try {
			Hashtable<String,String> map = new Hashtable<String,String>();
			map.put("java.naming.factory.initial","org.jnp.interfaces.NamingContextFactory");
			map.put("java.naming.factory.url.pkgs","org.jboss.naming:org.jnp.interfaces");
			map.put("java.naming.provider.url","jnp://localhost:1099");
			ctx = 
				new javax.naming.InitialContext(map);
			
			TestService svc = (TestService)ctx.lookup( name );
			if ( svc != null )
			{
			    System.out.println(svc.hello("TestServiceBean/remote"));
			}
		} catch (NamingException e) {
			e.printStackTrace();
		}