字样 * @throws java.rmi.RemoteException */ public String helloWorld() throws RemoteException 异常,因此这里默认的构造方法必须写,必须声明抛出RemoteException异常 * * @throws RemoteException */ public HelloImpl () throws RemoteException { } /** * 简单的返回“Hello World!" 字样 * @throws java.rmi.RemoteException */ public String helloWorld() throws RemoteException ; } catch (RemoteException e) { System.out.println("创建远程对象发生异常!")
简单使用rmi 要发布的服务接口 public interface HelloService extends Remote{ public String sayHello() throws RemoteException ; //要发布的服务类的方法必须都throws RemoteException //在Util中,创建代理对象时会checkMethod,存在没有throws RemoteException { super(); } @Override public String sayHello() throws RemoteException{ { super(); } UnicastRemoteObject构造 protected UnicastRemoteObject() throws RemoteException { this(0); } protected UnicastRemoteObject(int port) throws RemoteException
字样 * @throws java.rmi.RemoteException */ public String helloWorld() throws RemoteException; /** * 一个简单的业务方法,根据传入的人名返回相应的问候语 * @param someBodyName String sayHelloToSomeBody(String someBodyName) throws RemoteException; } /** * Created by IntelliJ 异常,因此这里默认的构造方法必须写,必须声明抛出RemoteException异常 * * @throws RemoteException */ RemoteException { return "Hello World!"
java.lang.Exceptionjava.rmi.RemoteException 在远程方法声明中,声明为参数或返回值的远程对象(直接在参数列表中声明或嵌入在参数中的非远程对象中)必须声明为远程接口 ; public float getBalance() throws java.rmi.RemoteException; } 下一个示例显示了一个有效的远程接口 ; } RemoteException类 的 java.rmi.RemoteException类是一个远程方法调用期间由RMI运行时抛出的异常的超类。 为了确保使用 RMI 系统的应用程序的健壮性,在远程接口中声明的每个远程方法都必须在其 throws 子句中指定java.rmi.RemoteException(或其超类之一,例如java.io.IOException 唯一的例外 java.rmi.RemoteException,当一个远程方法调用由于某种原因失败时抛出。
字样 * @throws java.rmi.RemoteException */ public String helloWorld() throws RemoteException 异常,因此这里默认的构造方法必须写,必须声明抛出RemoteException异常 * * @throws RemoteException */ public HelloImpl() throws RemoteException { } /** * 简单的返回“Hello World!" 字样 * @throws java.rmi.RemoteException */ public String helloWorld() throws RemoteException ; } catch (RemoteException e) { System.out.println("创建远程对象发生异常!")
RMI接口: import java.rmi.Remote; import java.rmi.RemoteException; public interface ServerI extends Remote { public String action(String arg)throws RemoteException; int add(int a,int b) throws RemoteException ; long getServerTime() throws RemoteException; String readToString(String path) throws RemoteException ; void downloadNetFile(String netpath,String localpath,String newName) throws RemoteException; } { super(); } public ServerImp(int port) throws RemoteException { super(port); // TODO Auto-generated
1、定义一个接口(继承Remote): 方法要抛RemoteException。 package rmi; import java.rmi.RemoteException; public interface IAdd extends java.rmi.Remote{ int add ( int a , int b ) throws RemoteException; } 2、定义一个类作为服务端 (继承UnicastRemoteObject ,实现接口IAdd 、,Serializable ): 构造和方法要抛RemoteException。 { super(); } public int add ( int a ,int b ) throws RemoteException { return a+b ; } public
; } 服务实现 import java.rmi.RemoteException; import java.rmi.server.UnicastRemoteObject; // */ private static final long serialVersionUID = 682805210518738166L; /** * @throws RemoteException */ protected ServiceImpl() throws RemoteException { super(); } /* (non-Javadoc ) * */ @Override public String queryName(String no) throws RemoteException { } } RMI客户端 import java.rmi.AccessException; import java.rmi.NotBoundException; import java.rmi.RemoteException
. */ importjava.rmi.RemoteException; importjava.rmi.*; public interface IHello extends Remote { 字样 *@throwsjava.rmi.RemoteException */ public default String helloWorld()throwsRemote Exception { 异常,因此这里默认的构造方法必须写,必须声明抛出RemoteException异常 * *@throwsRemoteException */ public HelloImpl()throws RemoteException 字样 *@throwsjava.rmi.RemoteException */ publicString helloWorld()throwsRemoteException { return"Hello ; }catch(RemoteException e) { System.out.println("创建远程对象发生异常!")
定义一个远程的接口 package com.rmi; import java.rmi.Remote; import java.rmi.RemoteException; public interface 并且定义的方法里面需要抛出一个RemoteException的异常。 obj) throws RemoteException; void say() throws RemoteException; } 需要定义一个object类型的参数方法。 UserImpl(int port, RMIClientSocketFactory csf, RMIServerSocketFactory ssf) throws RemoteException { super(port, csf, ssf); } public String hello(String hello) throws RemoteException {
at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at org.apache.hadoop.ipc.RemoteException.instantiateException (RemoteException.java:106) at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java HdfsTest.java:33) at com.master01.HdfsTest.main(HdfsTest.java:52) Caused by: org.apache.hadoop.ipc.RemoteException
*/ public void stop() throws android.os.RemoteException; public void pause() throws android.os.RemoteException ; public void start() throws android.os.RemoteException; public void prev() throws android.os.RemoteException ; public void next() throws android.os.RemoteException; public void release() throws android.os.RemoteException ; public boolean isPlaying() throws android.os.RemoteException; public void seek(int pre_100) throws android.os.RemoteException; public void create(java.util.List<java.lang.String> filePaths
InterruptedException e) { e.printStackTrace(); } catch (RemoteException public void login(final String userName, final String passWord, String packageName) throws RemoteException InterruptedException e) { e.printStackTrace(); } catch (RemoteException ).start(); } @Override public void logout(final String packageName) throws RemoteException InterruptedException e) { e.printStackTrace(); } catch (RemoteException
try { NotificationHelper.addNotificationSlot(notificationSlot); } catch (RemoteException ex) { HiLog.error(LABEL_LOG, "%{public}s", "defineNotificationSlot remoteException."); ex) { HiLog.error(LABEL_LOG, "%{public}s", "publishNotification remoteException."); ex) { HiLog.error(LABEL_LOG, "%{public}s", "cancel remoteException."); } } 调用 ex) { HiLog.error(LABEL_LOG, "%{public}s", "cancelAll remoteException."); }
; public void pause() throws android.os.RemoteException; public void start() throws android.os.RemoteException ; public void prev() throws android.os.RemoteException; public void next() throws android.os.RemoteException ; public void release() throws android.os.RemoteException; public boolean isPlaying() throws android.os.RemoteException; public void seek(int pre_100) throws android.os.RemoteException; // 加in public void create(java.util.List<java.lang.String> filePaths) throws android.os.RemoteException
; public interface Hello extends Remote { String hello() throws RemoteException; String hello (String name) throws RemoteException; String hello(Object object) throws RemoteException; } HelloImpl.java package RMI; import java.rmi.RemoteException; import java.rmi.server.UnicastRemoteObject; public class { } public String hello() throws RemoteException { return "hello world"; } sayHello(Object obj) throws RemoteException; void log(String msg) throws RemoteException; } Step
{ super(); } public String sayHello(String name) throws RemoteException { return ; public interface User extends Remote { String name(String name) throws RemoteException; void say(String say) throws RemoteException; void dowork(Object work) throws RemoteException; } 随后实现接口 ,此接口需要有一个显示的构造函数并且要抛出一个RemoteException异常 package RMI; import java.rmi.RemoteException; import java.rmi.server.UnicastRemoteObject public void dowork(Object work) throws RemoteException{ System.out.println("your work is
public java.lang.String OpenAccount(java.lang.String name, java.lang.String password) throws android.os.RemoteException @Override public java.lang.String saveMoney(int money, java.lang.String account) throws android.os.RemoteException java.lang.String closeAccount(java.lang.String account, java.lang.String password) throws android.os.RemoteException */ public java.lang.String saveMoney(int money, java.lang.String account) throws android.os.RemoteException java.lang.String closeAccount(java.lang.String account, java.lang.String password) throws android.os.RemoteException
* */ public interface MyRemote extends Remote { /** * 所有的远程方法都必须抛出RemoteException异常。 * @return * @throws RemoteException */ public String sayHello() throws RemoteException; } MyRemoteImpl.java /** * 远程服务(实现) */ package RMIDemo; import java.rmi.Naming; import java.rmi.RemoteException; import 当然你必须实现所有的接口方法,但请注意:可以不需要声明RemoteException。 * @throws RemoteException */ public MyRemoteImpl() throws RemoteException{} /** * @param args
3.代码步骤 3.1远程接口 package cn.com.tt.rmiserver.stub; import java.rmi.Remote; import java.rmi.RemoteException ; public Account getAdminAccount() throws RemoteException; } 3.2接口实现类 package cn.com.tt.rmiserver ; public class UserManagerImp implements UserManagerInterface { public UserManagerImp() throws RemoteException static final long serialVersionUID = -3111492742628447261L; public String getUserName() throws RemoteException { return "TT"; } public Account getAdminAccount() throws RemoteException{ Account