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3 ,01 5/ $$ I*$ 5/ +$ I*$! 88 5/ " 5/ 5$$ $ $$? 5/ 256!0 $$ $* J $* $! 7.%. 2,rmic 9 2 % + " 5? $* 8 * 5 " $* 8 8! 7 $* / $ 5 java.io.serializable ou java.io.externalizable 2$6 8.9 :! $ < B 2" 2. $ 5 5 5/? $ $ $* rmiregister :? 5 $ 0F" $ /? : 5 $ / * 2 ) $ 5* 0F 7 $ 7 1 $ 5** ) $ /;..($% 1;. <; 6rmic =; $ ; rmiregister $ >;? % $ C E
4 G ($$ ( 4, / 4 $ $? $? $ : : : $ :? : 5 Calculator.java : 5/ CalculatorImpl.java : $* CalculatorServer.java : $* CalculatorClient.java )H.. $? $ $ java.rmi.remote 5! java.rmi.remoteexception Calculator.java public interface Calculator extends Remote { public long add(long a, long b) throws RemoteException; public long sub(long a, long b) throws RemoteException; public long mul(long a, long b) throws RemoteException; public long div(long a, long b) throws RemoteException; ).! CalculatorImpl.java import java.rmi.server.*; public class CalculatorImpl extends UnicastRemoteObject implements Calculator { // il faut surcharger le constructeur vide pour déclarer // l exception RemoteException public CalculatorImpl() throws RemoteException { super(); public long add(long a, long b) throws RemoteException { return a + b; public long sub(long a, long b) throws RemoteException { return a - b; public long mul(long a, long b) throws RemoteException { return a * b; public long div(long a, long b) throws RemoteException { return a / b; )) - rmic CalculatorImpl *! Calculator_Stub.java *! Calculator_Skel.java $ $$ &/ -keep 4 : $ 5$! + $ -v1.2 4 *! Calculator_Stub ) $ CalculatorServer.java import java.rmi.naming; public class CalculatorServer { public CalculatorServer() { try { Calculator c = new CalculatorImpl(); Naming.rebind("rmi://localhost:1099/CalculatorService", c); catch (Exception e) { System.out.println("Trouble: " + e); public static void main(string args[]) { new CalculatorServer(); )9 CalculatorClient.java import java.rmi.naming; public class CalculatorClient { public static void main(string[] args) { try { Calculator c = (Calculator) Naming.lookup("rmi://remotehost /CalculatorService"); System.out.println(c.sub(4, )); System.out.println(c.add(4, 5)); System.out.println(c.mul(, 6)); System.out.println(c.div(9, )); catch (MalformedURLException murle) { System.out.println("java.net.MalformedURLException" + murle); catch (RemoteException re) { System.out.println("java.rmi.RemoteException" + re); catch (NotBoundException nbe) { System.out.println("java.rmi.NotBoundException" + nbe); catch (java.lang.arithmeticexception ae) { System.out.println("java.lang.ArithmeticException" + ae); 4
5 $ rmiregistry * $ java CalculatorServer * 5 $ 7 5 $ java CalculatorClient 4 $ 1 $ 9 $ 18 $ 19, $ echo()!$ ; =, Echo 4 5 5/ 1 EchoImpl 4 5 $ 51 EchoAppliServer 4 $$ EchoClient 4 5$$ 51 )< )B.. Echo.java public interface Echo extends Remote { public String echo(string str) throws RemoteException;.! EchoImpl.java import java.rmi.server.*; public class EchoImpl extends UnicastRemoteObject implements Echo { public EchoImpl() throws RemoteException { super(); public String echo(string str) throws RemoteException { return "Echo : " + str; )C )E.$/ + *$ 4 RMISecurityManager $ 5/ $" 5* 8RMIregistry8 $ Naming.rebind("echo", od); $ " / $ 7 $ 5 String url = "rmi://nomserveurrmi:port/nomod" String url = "rmi://leo.inria.fr/echo" $ $ * *K? 5$$ Naming.lookup(url);.$1 EchoAppliServer.java public class EchoAppliServer { public static void main(string args[]) { // Création et installation du manager de sécurité System.setSecurityManager(new RMISecurityManager()); try { // Création de l OD EchoImpl od = new EchoImpl(); // Enregistrement de l OD dans RMI Naming.rebind("echo", od); catch(exception e) { )G H 5
6 $ javac -d $HOME/classes Echo.java $ javac -d $HOME/classes EchoImpl.java $ javac -d $HOME/classes EchoAppliServer.java & $ $ $HOME/classes/demo/rmi/ $ rmic -d $HOME/classes demo.rmi.echoimpl 7 $ + EchoImpl_Stub.class EchoImpl_Skel.class 2rmiregister $. $, $ rmiregister& $ java demo.rmi.echoappliserver $ $ & ).% / );!$ import java.rmi.registery.*; public class EchoClient { public static void main(string args[]) { // Création et installation du manager de sécurité System.setSecurityManager(new RMISecurityManager()); // Recherche de l OD String url = "rmi://" + args[0] + "/echo"; Echo od = (Echo)Naming.lookup(url); System.out.println(od.echo(args[1]));.% 1 + $ 51 5 & $! RMISecurityManager" 5/ * 858 $ 4 Naming.lookup(url) A 4 String url="rmi://nomserveurrmi:port/nomod" : 4 nomserveurrmi = "localhost" 9 $ javac -d $HOME/classes EchoClient.java $ java demo.rmi.echoclient leo.inria.fr coucou $ Echo : coucou + + $$ 4 / $ / 5 $ 5 1 $ $ $? 57" 5 * + $ *"! $ * " * $$ 5 * $ 5 *4 java.rmi.server.rmiclassloader < B 6
7 C 2 5 $ * RMICLassLoader 5$$ 5$$ 5 $ SecurityManager$ & " CLASSPATH $ = $ * $ $ java.rmi.rmisecuritymanager = System.setSecurity() $ $$ $ $! $ $$" 5 5 $$ *$ 5 * RMISecurityManager $* * $ $ $ * E 26 java.rmi $ L? 1 java.rmi.server $ L 1 java.rmi.registery 5*? 1 java.rmi.dgc $ 1 7
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