spring 中RMI的应用

利用Spring来实现RMI,不用实现remote接口,也不用调用rmic编译stub和skeleton,
服务端可以定义org.springframework.remoting.rmi.RmiServiceExporter类完成RMI服务器实现.
客户端只要定义org.springframework.remoting.rmi.RmiProxyFactoryBean,告知rmi的url和接口

服务器实现:
接口: IHello.java

 

 

package com.callan.Test; public interface IHello {  public String hello(String name); }

 

 

实现类：HelloImp.java

 

package com.callan.Test; public class HelloImp implements IHello{  public String hello(String name){   return "hello:" + name;  } }

 

 

 

 

服务端spring的配置:

 

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"     "http://www.springframework.org/dtd/spring-beans.dtd"> <beans>  <bean id="helloService" class="com.callan.Test.HelloImp"/>    <bean id="serviceExporter" class="org.springframework.remoting.rmi.RmiServiceExporter">   <property name="service">    <ref bean="helloService"/>   </property>   <!-- 定义服务名 -->   <property name="serviceName">    <value>hello</value>   </property>   <property name="serviceInterface">    <value>com.callan.Test.IHello</value>   </property>   <property name="registryPort">             <value>8888</value>         </property>  </bean> </beans>

 

 

 

客户端 spring:

必须把服务端的IHello.class文件放到客户端一份

 

接下来看看客户端要如何实作，只要透过org.springframework.remoting.rmi.RmiProxyFactoryBean，并告知服务的URL、代理的接口即可，就好像在使用本地端管理的服务一样：

 

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">  <bean id="serviceClient"   class="org.springframework.remoting.rmi.RmiProxyFactoryBean">      <property name="serviceInterface">    <value>com.callan.Test.IHello</value>   </property>   <!-- serviceUrl以rmi开头,定义服务器地址与端口和服务名 -->   <property name="serviceUrl">    <value>rmi://localhost:8888/hello</value>   </property>  </bean> </beans>

 

客户端调用

package com.callan.Test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.FileSystemXmlApplicationContext; public class RMIClient {  public static void main(String[] args) {   ApplicationContext content = new FileSystemXmlApplicationContext("E:/workspace/rmiClient/src/applicationContext.xml");      IHello iHello = (IHello)content.getBean("serviceClient");      System.out.println(iHello.hello("callan"));  } }