我试图在eclipse中实现一个简单的RMI添加服务器，但是我得到了一个解组异常。那我错过了什么？我是否必须生成存根文件？在下面找到我的代码。
//The Interface
package test_rmi;
public interface sumInterface extends java.rmi.Remote
{
int find_sum(int n1,int n2) throws java.rmi.RemoteException;
}
//The Implementation
package test_rmi;
import java.rmi.*;
import java.rmi.server.UnicastRemoteObject;
public class sumImpl extends UnicastRemoteObject implements sumInterface{
private static final long serialVersionUID = 1L;
protected sumImpl() throws RemoteException {
super();
// TODO Auto-generated constructor stub
}
public int find_sum(int n1,int n2) throws RemoteException
{
int ans=0;
ans = n1+n2;
return ans;
}
}
//The Server
package test_rmi;
import java.net.MalformedURLException;
import java.rmi.*;
import java.rmi.registry.*;
public class sumServer
{
public static void main(String args[]) throws RemoteException, AlreadyBoundException, MalformedURLException{
sumImpl abc = new sumImpl();
Naming.rebind("SUM", abc);
}
}
//The Client
package test_rmi;
import java.rmi.*;
import java.rmi.registry.*;
import java.rmi.server.*;
import java.util.Scanner;
import java.io.DataInputStream;
public class sumClient
{
public static void main(String args[])
{
try
{
int ans;
System.out.println("HOWDY");
sumInterface pi = (sumInterface) Naming.lookup("BOOBOO");
System.out.println("FOUND!!");
System.out.print("Enter Number 1 : ");
Scanner sc = new Scanner(System.in);
String int1 = sc.nextLine();
System.out.print("Enter Number 2 : ");
Scanner sc1 = new Scanner(System.in);
String int2 = sc.nextLine();
ans = pi.find_sum((Integer.parseInt(int1)),Integer.parseInt(int2));
System.out.println(ans);
}
catch(Exception e) { }
}
}
RMI注册表在默认端口1099上处于活动状态，但获得以下解组异常：
Exception in thread "main" java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: test_rmi.sumInterface
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:421)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:272)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:276)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:253)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:379)
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at java.rmi.Naming.rebind(Naming.java:177)
at test_rmi.sumServer.main(sumServer.java:12)
Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:java.lang.ClassNotFoundException: test_rmi.sumInterface
at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknown Source)
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:411)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:272)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: test_rmi.sumInterface
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.rmi.server.LoaderHandler$Loader.loadClass(LoaderHandler.java:1207)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at sun.rmi.server.LoaderHandler.loadClassForName(LoaderHandler.java:1221)
at sun.rmi.server.LoaderHandler.loadProxyInterfaces(LoaderHandler.java:731)
at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:674)
at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:611)
at java.rmi.server.RMIClassLoader$2.loadProxyClass(RMIClassLoader.java:646)
at java.rmi.server.RMIClassLoader.loadProxyClass(RMIClassLoader.java:311)
at sun.rmi.server.MarshalInputStream.resolveProxyClass(MarshalInputStream.java:265)
at java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1566)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1518)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1781)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1353)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:373)
... 15 more