spring整合rmi远程调用

前言：

      先说说，webservice和rmi的最主要的区别， rmi的客户端和服务端都必须是java，webservice没有这个限制，webservice是在http协议上传递xml文本文件。与语言和平台无关，rmi是在tcp协议上传递可序列化的java对象，只能用在java虚拟机上，绑定语言。 RMI是EJB远程调用的基础，仅用RMI技术就可以实现远程调用，使用EJB是为了实现组件，事物，资源池，集群等功能。
  WebService是通过XML来传输数据，可用http等协议因此可在异构系统间传递，并且可以穿过防火墙，可在公网上远程调用。更详细内容参看这篇文字http://blog.csdn.net/shan9liang/article/details/8995023

代码：首先为rmiservice端

定义一个接口

package com.guop.service;
public interface IHelloWorld {

public String helloWorld();
public String sayHelloToSomeBody(String name);

}

接口的实现类

package com.guop.service.impl;
import com.guop.service.IHelloWorld;
public class HelloWorldImpl implements IHelloWorld{
@Override
public String helloWorld() {
	return "hello world";
}

@Override
public String sayHelloToSomeBody(String name) {
	  return "Hello World!" + name;  
}

}

服务器启动类，这个启动类可以和tomcat关联在启动应用的时候，启动该服务就可以了

package com.guop.service;
import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;
public class HelloHost {

public static void main(String[] args) {

ApplicationContext ctx = new ClassPathXmlApplicationContext(

"applicationContext.xml");

System.out.println("rmi 服务启动了");

}

}

spring配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	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-3.0.xsd 
    http://www.springframework.org/schema/aop 
    http://www.springframework.org/schema/aop/spring-aop-3.0.xsd 
    http://www.springframework.org/schema/tx  
    http://www.springframework.org/schema/tx/spring-tx-3.0.xsd ">
                   	&lt;bean id=&quot;helloWorld&quot; class=&quot;com.guop.service.impl.HelloWorldImpl&quot; /&gt;

&lt;bean id=&quot;serviceExporter&quot; class=&quot;org.springframework.remoting.rmi.RmiServiceExporter&quot;&gt;
	&lt;property name=&quot;service&quot; ref=&quot;helloWorld&quot; /&gt;
	&lt;!-- 定义服务名 --&gt;
	&lt;property name=&quot;serviceName&quot; value=&quot;hello&quot; /&gt;
	&lt;property name=&quot;serviceInterface&quot; value=&quot;com.guop.service.IHelloWorld&quot; /&gt;
	&lt;property name=&quot;registryPort&quot; value=&quot;8088&quot; /&gt;
&lt;/bean&gt;

</beans>

rmiclient：client访问类

package com.guop.client;
import java.rmi.RemoteException;
import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.guop.service.IHelloWorld;
public class HelloClient {

public static void main(String[] args) throws RemoteException {

ApplicationContext ctx = new ClassPathXmlApplicationContext(

"applicationContext.xml");

IHelloWorld hs = (IHelloWorld) ctx.getBean("helloWorld");

System.out.println(hs.helloWorld());

System.out.println(hs.sayHelloToSomeBody("captain.cc"));

}

}

spring配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	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-3.0.xsd 
    http://www.springframework.org/schema/aop 
    http://www.springframework.org/schema/aop/spring-aop-3.0.xsd 
    http://www.springframework.org/schema/tx  
    http://www.springframework.org/schema/tx/spring-tx-3.0.xsd ">
&lt;bean id=&quot;helloWorld&quot; class=&quot;org.springframework.remoting.rmi.RmiProxyFactoryBean&quot;&gt;
	&lt;property name=&quot;serviceUrl&quot; value=&quot;rmi://localhost:8088/hello&quot; /&gt;
	&lt;property name=&quot;serviceInterface&quot; value=&quot;com.guop.service.IHelloWorld&quot; /&gt;
&lt;/bean&gt;

</beans>