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ÄúÏÖÔÚµÄλÖ㺠µçÄÔ¼¼ÇÉ >> Java >> JavaXML >> WebServices >> JavaÕýÎÄ

Java RMI֮HelloWorldƪ

ÎÄÕÂÀ´Ô´£ºÏ£ÈüÍø ×÷ÕߣºØýÃû ¸üÐÂʱ¼ä£º2008-8-23 14:40:30 ¡¾´ó С¡¿ ¡¾¼ÓÈëÊղء¿
    Java RMI Ö¸µÄÊÇÔ¶³Ì·½·¨µ÷Óà £¨Remote Method Invocation£©¡£ËüÊÇÒ»ÖÖ»úÖÆ£¬Äܹ»ÈÃÔÚij¸ö Java ÐéÄâ»úÉϵĶÔÏóµ÷ÓÃÁíÒ»¸ö Java ÐéÄâ»úÖеĶÔÏóÉϵķ½·¨¡£¿ÉÒÔÓô˷½·¨µ÷ÓõÄÈκζÔÏó±ØÐëʵÏÖ¸ÃÔ¶³Ì½Ó¿Ú¡£     Java RMI²»ÊÇʲôм¼Êõ£¨ÔÚJava1.1µÄʱ´ú¶¼ÓÐÁË£©£¬µ«È´ÊÇÊǷdz£ÖØÒªµÄµ×²ã¼¼Êõ¡£     ´óÃû¶¦¶¦µÄEJB¶¼Êǽ¨Á¢ÔÚrmi»ù´¡Ö®Éϵģ¬ÏÖÔÚ»¹ÓÐһЩ¿ªÔ´µÄÔ¶³Ìµ÷ÓÃ×é¼þ£¬Æäµ×²ã¼¼ÊõÒ²ÊÇrmi.     ÔÚ´óÁ¦¹Ä´µWeb Service¡¢SOAµÄʱ´ú£¬ÊDz»ÊÇÿ¸öÓ¦Óö¼Ó¦¸ÃÑ¡Óñ¿×¾µÄWeb Service×é¼þÀ´ÊµÏÖ£¬Í¨¹ý¶Ô±È²âÊÔºó£¬RMIÊÇ×î¼òµ¥µÄ£¬ÔÚһЩСµÄÓ¦ÓÃÖÐÊÇ×îºÏÊʵġ£     ÏÂÃæÍ¨¹ýÒ»¸ö¼òµ¥µÄÀý×ÓÀ´ËµÃ÷RMIµÄÔ­ÀíºÍÓ¦Óã¬ÏÂÃæÕâ¸öÀý×ÓÊÇÒ»¸ö¼òµ¥HelloWorld£¬µ«ÒѺ­¸ÇRMIµÄºËÐÄÓ¦ÓÃÓ뿪·¢Ä£Ê½¡£   /**
* Created by IntelliJ IDEA.
* User: leizhimin
* Date: 2008-8-7 21:50:02
* ¶¨ÒåÒ»¸öÔ¶³Ì½Ó¿Ú£¬±ØÐë¼Ì³ÐRemote½Ó¿Ú£¬ÆäÖÐÐèÒªÔ¶³Ìµ÷Óõķ½·¨±ØÐëÅ׳öRemoteExceptionÒì³£
*/
public interface IHello extends Remote {

    /**
     * ¼òµ¥µÄ·µ»Ø¡°Hello World£¡"×ÖÑù
     * @return ·µ»Ø¡°Hello World£¡"×ÖÑù
     * @throws java.rmi.RemoteException
     */
    public String helloWorld() throws RemoteException;

    /**
     * Ò»¸ö¼òµ¥µÄÒµÎñ·½·¨£¬¸ù¾Ý´«ÈëµÄÈËÃû·µ»ØÏàÓ¦µÄÎʺòÓï
     * @param someBodyName  ÈËÃû
     * @return ·µ»ØÏàÓ¦µÄÎʺòÓï
     * @throws java.rmi.RemoteException
     */
    public String sayHelloToSomeBody(String someBodyName) throws RemoteException;
}   /**
* Created by IntelliJ IDEA.
* User: leizhimin
* Date: 2008-8-7 21:56:47
* Ô¶³ÌµÄ½Ó¿ÚµÄʵÏÖ
*/
public class HelloImpl extends UnicastRemoteObject implements IHello {
    /**
     * ÒòΪUnicastRemoteObjectµÄ¹¹Ôì·½·¨Å׳öÁËRemoteExceptionÒì³££¬Òò´ËÕâÀïĬÈϵĹ¹Ôì·½·¨±ØÐëд£¬±ØÐëÉùÃ÷Å׳öRemoteExceptionÒì³£
     *
     * @throws RemoteException
     */
    public HelloImpl() throws RemoteException {
    }

    /**
     * ¼òµ¥µÄ·µ»Ø¡°Hello World£¡"×ÖÑù
     *
     * @return ·µ»Ø¡°Hello World£¡"×ÖÑù
     * @throws java.rmi.RemoteException
     */
    public String helloWorld() throws RemoteException {
        return "Hello World!";
    }

    /**
     * Ò»¸ö¼òµ¥µÄÒµÎñ·½·¨£¬¸ù¾Ý´«ÈëµÄÈËÃû·µ»ØÏàÓ¦µÄÎʺòÓï
     *
     * @param someBodyName ÈËÃû
     * @return ·µ»ØÏàÓ¦µÄÎʺòÓï
     * @throws java.rmi.RemoteException
     */
    public String sayHelloToSomeBody(String someBodyName) throws RemoteException {
        return "ÄãºÃ£¬" + someBodyName + "!";
    }
}   /**
* Created by IntelliJ IDEA.
* User: leizhimin
* Date: 2008-8-7 22:03:35
* ´´½¨RMI×¢²á±í£¬Æô¶¯RMI·þÎñ£¬²¢½«Ô¶³Ì¶ÔÏó×¢²áµ½RMI×¢²á±íÖС£
*/
public class HelloServer {
    public static void main(String args[]) {

        try {
            //´´½¨Ò»¸öÔ¶³Ì¶ÔÏó
            IHello rhello = new HelloImpl();
            //±¾µØÖ÷»úÉϵÄÔ¶³Ì¶ÔÏó×¢²á±íRegistryµÄʵÀý£¬²¢Ö¸¶¨¶Ë¿ÚΪ8888£¬ÕâÒ»²½±Ø²»¿ÉÉÙ£¨JavaĬÈ϶˿ÚÊÇ1099£©£¬±Ø²»¿ÉȱµÄÒ»²½£¬È±ÉÙ×¢²á±í´´½¨£¬ÔòÎÞ·¨°ó¶¨¶ÔÏóµ½Ô¶³Ì×¢²á±íÉÏ
            LocateRegistry.createRegistry(8888);

            //°ÑÔ¶³Ì¶ÔÏó×¢²áµ½RMI×¢²á·þÎñÆ÷ÉÏ£¬²¢ÃüÃûΪRHello
            //°ó¶¨µÄURL±ê×¼¸ñʽΪ£ºrmi://host:port/name(ÆäÖÐЭÒéÃû¿ÉÒÔÊ¡ÂÔ£¬ÏÂÃæÁ½ÖÖд·¨¶¼ÊÇÕýÈ·µÄ£©
            Naming.bind("rmi://localhost:8888/RHello",rhello);
//            Naming.bind("//localhost:8888/RHello",rhello);

            System.out.println(">>>>>INFO:Ô¶³ÌIHello¶ÔÏó°ó¶¨³É¹¦£¡");
        } catch (RemoteException e) {
            System.out.println("´´½¨Ô¶³Ì¶ÔÏó·¢ÉúÒì³££¡");
            e.printStackTrace();
        } catch (AlreadyBoundException e) {
            System.out.println("·¢ÉúÖØ¸´°ó¶¨¶ÔÏóÒì³££¡");
            e.printStackTrace();
        } catch (MalformedURLException e) {
            System.out.println("·¢ÉúURL»ûÐÎÒì³££¡");
            e.printStackTrace();
        }
    }
}   /**
* Created by IntelliJ IDEA.
* User: leizhimin
* Date: 2008-8-7 22:21:07
* ¿Í»§¶Ë²âÊÔ£¬ÔÚ¿Í»§¶Ëµ÷ÓÃÔ¶³Ì¶ÔÏóÉϵÄÔ¶³Ì·½·¨£¬²¢·µ»Ø½á¹û¡£
*/
public class HelloClient {
    public static void main(String args[]){
        try {
            //ÔÚRMI·þÎñ×¢²á±íÖвéÕÒÃû³ÆÎªRHelloµÄ¶ÔÏ󣬲¢µ÷ÓÃÆäÉϵķ½·¨
            IHello rhello =(IHello) Naming.lookup("rmi://localhost:8888/RHello");
            System.out.println(rhello.helloWorld());
            System.out.println(rhello.sayHelloToSomeBody("ÈÛÑÒ"));
        } catch (NotBoundException e) {
            e.printStackTrace();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (RemoteException e) {
            e.printStackTrace();  
        }
    }
}   ÔËÐÐRMI·þÎñ¶Ë³ÌÐò£º         ÔËÐÐRMI¿Í»§¶Ë³ÌÐò£º         ×ܽ᣺´ÓÉÏÃæµÄ¹ý³ÌÀ´¿´£¬RMI¶Ô·þÎñÆ÷µÄIPµØÖ·ºÍ¶Ë¿ÚÒÀÀµºÜ½ôÃÜ£¬µ«ÊÇÔÚ¿ª·¢µÄʱºò²»ÖªµÀ½«À´µÄ·þÎñÆ÷IPºÍ¶Ë¿ÚÈçºÎ£¬µ«Êǿͻ§¶Ë³ÌÐòÒÀÀµÕâ¸öIPºÍ¶Ë¿Ú¡£     ÕâÒ²ÊÇRMIµÄ¾ÖÏÞÐÔÖ®Ò»¡£Õâ¸öÎÊÌâÓÐÁ½ÖÖ½â¾ö;¾¶£ºÒ»ÊÇͨ¹ýDNSÀ´½â¾ö£¬¶þÊÇͨ¹ý·â×°½«IP±©Â¶µ½³ÌÐò´úÂëÖ®Íâ¡£     RMIµÄ¾ÖÏÞÐÔÖ®¶þÊÇRMIÊÇJavaÓïÑÔµÄÔ¶³Ìµ÷Óã¬Á½¶ËµÄ³ÌÐòÓïÑÔ±ØÐëÊÇJavaʵÏÖ£¬¶ÔÓÚ²»Í¬ÓïÑÔ¼äµÄͨѶ¿ÉÒÔ¿¼ÂÇÓÃWeb Service»òÕß¹«ÓöÔÏóÇëÇó´úÀíÌåϵ£¨CORBA£©À´ÊµÏÖ¡£
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