Spring - RMI

Dependency

<dependency>             <groupId>aopalliance</groupId>             <artifactId>aopalliance</artifactId>             <version>1.0</version>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-aop</artifactId>             <version>4.1.7.RELEASE</version>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-asm</artifactId>             <version>3.1.4.RELEASE</version>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-beans</artifactId>             <version>4.1.7.RELEASE</version>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-context</artifactId>             <version>4.1.7.RELEASE</version>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-context-support</artifactId>             <version>4.1.7.RELEASE</version>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-core</artifactId>             <version>4.1.7.RELEASE</version>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-expression</artifactId>             <version>4.1.7.RELEASE</version>         </dependency>

SERVER

Remote Server

▶XML 파일 생성 : 위치는 당연히 main/resources

▶Example File Name : remote-server-config.xml 

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans"     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"     xmlns:context="http://www.springframework.org/schema/context"     xsi:schemaLocation="http://www.springframework.org/schema/beans                                      http://www.springframework.org/schema/beans/spring-beans-4.0.xsd                                      http://www.springframework.org/schema/aop                                      http://www.springframework.org/schema/aop/spring-aop-4.0.xsd                                      http://www.springframework.org/schema/context                                      http://www.springframework.org/schema/context/spring-context-4.0.xsd">     <bean id="serviceRemote" class="com.odin.remoteServer.ServiceRemoteImpl" />     <bean class="org.springframework.remoting.rmi.RmiServiceExporter">         <property name="serviceName" value="serviceRemote" />         <property name="service" ref="serviceRemote" />         <property name="serviceInterface" value="com.odin.remoteServer.ServiceRemote" />         <property name="registryPort" value="1099" />     </bean> </beans>

Remote Server Run

public class RMIserver {         private ApplicationContext context;          public RMIserver() {              }          public void run(){         context = new ClassPathXmlApplicationContext("remote-server-config.xml");         logger.info("Remote Server Open / Waiting Client ...");     }     }

public interface ServiceRemote {     public String rmiAction(String command); }

Remote Server 구현 Class

public class ServiceRemoteImpl implements ServiceRemote{          @Override     public String rmiAction(String command) {         if(command.equals("confirm")){             return "connect";         }         else{             MemoryDB memoryDB = new MemoryDB();             memoryDB.db_synchronization(command);             return "update";         }     }     }

Client

Remote Client xml

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" 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/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">   <bean id="serviceRemote" class="org.springframework.remoting.rmi.RmiProxyFactoryBean"> <property name="serviceUrl" value="rmi://서버IP:1099/serviceRemote"/> <property name="serviceInterface" value="com.chience.odin.remote.ServiceRemote"/> </bean>  </beans>

 

Remote Client Run & Connection

public class RMIclient {         private static ApplicationContext context = null;      private static ServiceRemote serviceRemote = null;          public RMIclient() {     }          public void connectRemote(){         try {             context = new ClassPathXmlApplicationContext("remote-client-config.xml");             serviceRemote = (ServiceRemote) context.getBean("serviceRemote");             System.out.println("connect RMI");                 }catch (Exception e){             System.out.println("disconnect RMI");             context = null;         }     }             public static ApplicationContext getContext() {         return context;     }     public static void setContext(ApplicationContext context) {         RMIclient.context = context;     }    //기능     public String confirm_connect(){         return serviceRemote.rmiAction("confirm");     }         public String db_command(String command){         return serviceRemote.rmiAction(command);     }     }

Remote Client Service

public interface ServiceRemote {     public String rmiAction(String confirm);     }

Remote Client Synchronized

public class StaticRMI {     private static RMIclient rmIclient;     public StaticRMI() {         rmIclient = new RMIclient();     }    //Web Project 가 Client로 사용됨에 따라 static synchronized     public static synchronized RMIclient getRmIclient() {         return rmIclient;     }     public static synchronized void setRmIclient(RMIclient rmIclient) {         StaticRMI.rmIclient = rmIclient;     } }