RMI Network programming: How to build a distributed Java RMI based on JDK1.5

1. Create a server-side project in Eclipse. Then, create an interface that is the method definition that you want to open to the client side. It is called: Usermanagerinterface, and must inherit the remote interface.

1  Packagedataserver.rmi.stub;2  3 ImportJava.rmi.Remote;4 Importjava.rmi.RemoteException;5  6 ImportDataserver.rmi.bean.Account;7  8  Public InterfaceUsermanagerinterfaceextendsremote{9      PublicString GetUserName ()throwsremoteexception;Ten      PublicAccount Getadminaccount ()throwsremoteexception; One}

2. To prove how easy it is to "object-oriented" or "seamlessly pass Java object" in RMI, we need to define an account class that is a bean that must implement the implements serializable serialization interface. This is a serializable object that can be transferred between client and server.

 PackageDataserver.rmi.bean; Importjava.io.Serializable;  Public classAccountImplementsserializable,cloneable{/**      *       */     Private Static Final LongSerialversionuid = -1858518369668584532l; PrivateString username; PrivateString password;  PublicString GetUserName () {returnusername; }      Public voidSetusername (String username) { This. Username =username; }      PublicString GetPassword () {returnpassword; }      Public voidSetPassword (String password) { This. Password =password; }       } 

3. At this point, you need to implement an interface that you have already opened:

 PackageDataserver.rmi; Importjava.rmi.RemoteException; ImportDataserver.rmi.bean.Account;ImportDataserver.rmi.stub.UserManagerInterface;  Public classUsermanagerimplImplementsUsermanagerinterface { PublicUsermanagerimpl ()throwsRemoteException {//super (); //TODO auto-generated Constructor stub//Unicastremoteobject.exportobject (this);    }      /**      *       */     Private Static Final LongSerialversionuid = -3111492742628447261l;  PublicString GetUserName ()throwsRemoteException {//TODO auto-generated Method Stub        return"Tommy Lee."; }       PublicAccount Getadminaccount ()throwsRemoteException {//TODO auto-generated Method StubAccount account=NewAccount (); Account.setusername ("Admin"); Account.setpassword ("Admin"); returnAccount ; }  } 

4. Define a main program entry to register the RMI interface you have implemented, including open ports. It's actually very simple:

Name our interface named "Usermanager" for easy client invocation

1  PackageDataserver.entry;2  3 Importjava.rmi.AlreadyBoundException;4 Importjava.rmi.RemoteException;5 ImportJava.rmi.registry.LocateRegistry;6 ImportJava.rmi.registry.Registry;7 ImportJava.rmi.server.UnicastRemoteObject;8  9 ImportDataserver.rmi.UserManagerImpl;Ten ImportDataserver.rmi.stub.UserManagerInterface; One   A  Public classEntry { -   -      Public Static voidMain (String []args)throwsalreadyboundexception, remoteexception{ the       -   -Usermanagerimpl usermanager=NewUsermanagerimpl (); -Usermanagerinterface usermanageri= (usermanagerinterface) unicastremoteobject.exportobject (userManager,0);  +             //Bind The remote object ' s stub in the registry -Registry Registry = Locateregistry.createregistry (2001);  +Registry.rebind ("Usermanager", Usermanageri);  ASYSTEM.OUT.PRINTLN ("Server is ready");  at     }  -}

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5. The server-side code is all written, but the Bean Class (account) and the interface Class (Usermangerinterface) are packaged into jars so that they can be imported into the client-side project below.

Project-"Right-click"-"Export-" jar--"Select Bean and interface--" named rmiserverinterface.jar--"Finish

6. Start creating a client-side program. Create a new project. After the creation is complete, import the jar package into the client project.

7. After importing our interface jar, you can start writing a client-side main program and call the server-side method.

1  PackageWeiblog.rmi;2 Importjava.rmi.NotBoundException;3 Importjava.rmi.RemoteException;4 ImportJava.rmi.registry.LocateRegistry;5 ImportJava.rmi.registry.Registry;6  7 ImportDataserver.rmi.stub.UserManagerInterface;8  9  Public classEntry2 {Ten   One      Public Static voidMain (String []args) { A           -         Try {  -Registry Registry = locateregistry.getregistry ("localhost", 2001);  theUsermanagerinterface Usermanager = (usermanagerinterface) registry.lookup ("Usermanager");  -System.out.println ("" +Usermanager.getadminaccount (). GetUserName () -+Usermanager.getadminaccount (). GetPassword ());  -}Catch(RemoteException e) { +             //TODO auto-generated Catch block - e.printstacktrace (); +}Catch(notboundexception e) { A             //TODO auto-generated Catch block at e.printstacktrace (); -         }  -           -     }  -}

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8. Start the server-side main program, and then start the client-side main program.

Server Console Printing: server is ready

Client Console printing: Adminadmin

Refer to: http://www.cnblogs.com/end/archive/2012/11/16/2772812.html

RMI Network programming: How to build a distributed Java RMI based on JDK1.5