RED5 中使用Spring RMI

由于RED5本身就基于spring的,所以在其上结合spring使用rmi是很简单的!

由于red5中已经存在spring的以下一些包,此文章是基本red5版本 : 1.0.0-rc

, 要使用rmi需要加入以下两个包:

加包时请根据red5版本选择正确的包(不要问我哪个版本对应哪些包,自己试吧)

ok ,准备工作完成

先写客户端和服务都需要的接口吧:

package org.freechat.chatserver.rmi;public interface TestRMI {public void test();}

接口实现:

package org.freechat.chatserver.rmi;public class TestRMIImple implements TestRMI {@Overridepublic void test() {System.out.println("rmi调用成功");}}

添加以下spring配置: 

spring-rmi-exporter.xml 

<?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="testBean" class="org.freechat.chatserver.TestBean"></bean><bean id="testRMI" class="org.freechat.chatserver.rmi.TestRMIImple"></bean><bean id="balanceChessGameServiceExporter" class="org.springframework.remoting.rmi.RmiServiceExporter"><property name="service"><ref bean="testRMI" /></property><property name="serviceName"><value>testRMI</value></property><property name="serviceInterface"><value>org.freechat.chatserver.rmi.TestRMI</value></property><property name="registryPort"><value>1199</value></property><property name="servicePort"><value>2899</value></property></bean></beans>

以上配置将org.freechat.chatserver.rmi.TestRMI接口暴露为名为testRMI的远程服务, 服务端实现类为org.freechat.chatserver.rmi.TestRMIImple

在red5配置文件red5-web.xml中引入以上配置,即red5-web.xml中添加

<import resource="classpath:/spring-bean.xml" />

将应用部署到red5下,启动red5将看到以下信息:

ok, rmi注册成功..

接下来写客户端测试下:

首先配置远程rmi:

rmi.xml :

<?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="testRed5RMI" class="org.springframework.remoting.rmi.RmiProxyFactoryBean"><property name="serviceUrl"><value>rmi://192.168.1.16:1199/testRMI</value></property><property name="serviceInterface"><value>org.freechat.chatserver.rmi.TestRMI</value></property></bean></beans>

测试类:

import org.freechat.chatserver.rmi.TestRMI;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;public class Test {/** * @param args */public static void main(String[] args) {ApplicationContext context = new ClassPathXmlApplicationContext("rmi.xml");TestRMI testRMI = (TestRMI) context.getBean("testRed5RMI");testRMI.test();}}

运行, red5控制台下看到:  

rmi调用成功

注意 事项:

rmi注册时默认注册到hostname : 0.0.0.0上, 本机调用肯定没问题, 要是客户端在不同机器上,或服务端多ip时,客户端调用可能会有以下错误 

java.rmi.ConnectException: Connection refused to host: 0.0.0.0;

这时应该在rmi注册前设置 系统变量:

System.setProperty("java.rmi.server.hostname", "192.168.1.212");指明注册的hostname

在red5中, 可在application启动时设置 ,即 start方法中加入以上语句;

网上也有说 在org.springframework.remoting.rmi.RmiServiceExporter暴露服务时,指定registryHost,即设置属性:

<bean id="balanceChessGameServiceExporter" class="org.springframework.remoting.rmi.RmiServiceExporter"><property name="service"><ref bean="testRMI" /></property><property name="serviceName"><value>testRMI</value></property><property name="serviceInterface"><value>org.freechat.chatserver.rmi.TestRMI</value></property><property name="registryPort"><value>1199</value></property><property name="servicePort"><value>2899</value></property><property name="registerHost"><value>192.168.1.212</value></property></bean>

但是我试了n次, 连注册时都报错了,希望高手指点,错误如下:

 

er' defined in class path resource [spring-bean.xml]: Invocation of init methodfailed; nested exception is java.rmi.ConnectException: Connection refused to host: 192.168.1.212; nested exception is:        java.net.ConnectException: Connection refused: connect        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1420)        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580)        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)        at org.red5.server.tomcat.TomcatLoader$2.run(TomcatLoader.java:774)Caused by: java.rmi.ConnectException: Connection refused to host: 192.168.1.212; nested exception is:        java.net.ConnectException: Connection refused: connect        at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:601)        at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:198)        at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:184)        at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:322)        at sun.rmi.registry.RegistryImpl_Stub.list(Unknown Source)        at org.springframework.remoting.rmi.RmiServiceExporter.testRegistry(RmiServiceExporter.java:420)        at org.springframework.remoting.rmi.RmiServiceExporter.getRegistry(RmiServiceExporter.java:331)        at org.springframework.remoting.rmi.RmiServiceExporter.prepare(RmiServiceExporter.java:268)        at org.springframework.remoting.rmi.RmiServiceExporter.afterPropertiesSet(RmiServiceExporter.java:229)        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477)        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1417)        ... 10 moreCaused by: java.net.ConnectException: Connection refused: connect        at java.net.PlainSocketImpl.socketConnect(Native Method)        at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)        at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)        at java.net.Socket.connect(Socket.java:519)        at java.net.Socket.connect(Socket.java:469)        at java.net.Socket.<init>(Socket.java:366)        at java.net.Socket.<init>(Socket.java:180)        at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:22)        at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:128)        at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:595)        ... 20 more

好了 完了 注你成功!