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我试图在使用RMI的远程服务器上调用斐波那契方法,但是当我尝试通过给该方法调用一个整数值来调用客户端方法时,出现以下错误:当调用远程方法时出错
java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.UnmarshalException: unrecognized method hash: method not supported by remote object
at sun.rmi.server.UnicastServerRef.dispatch(Unknown Source)
at sun.rmi.transport.Transport$1.run(Unknown Source)
at sun.rmi.transport.Transport$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(Unknown Source)
at sun.rmi.transport.StreamRemoteCall.executeCall(Unknown Source)
at sun.rmi.server.UnicastRef.invoke(Unknown Source)
at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(Unknown Source)
at java.rmi.server.RemoteObjectInvocationHandler.invoke(Unknown Source)
at com.sun.proxy.$Proxy0.fibonacciArrayTest(Unknown Source)
at ie.gmit.FibonacciClient.main(FibonacciClient.java:37)
有没有人有任何想法,我在这个实施出错了?
这是RMI应用程序的客户端:
//get user input
Scanner user_input = new Scanner(System.in);
String fibMaxNum;
System.out.println("Enter the max fibonacci number: ");
fibMaxNum = user_input.next();
int fibMax = Integer.parseInt(fibMaxNum);
//Get Fibonacci array.
int[] sequence = power_proxy.fibonacciArrayTest(fibMax);
for (int value : sequence) {
System.out.println(value);
}
而且这是在服务器端执行,我也得到一个错误这里The return type is incompatible with IPower.fibonacciArrayTest(int)
。我从这个,我不是指定收集Ipower
界面中的正确返回类型,但是如何纠正签名以解决此问题?我应该在Ipower
更改方法:
public int[] fibonacciArrayTest(int n) {
int a = 0;
int b = 1;
int[] sequence = new int[n];
// Fill array with Fibonacci values.
for (int i = 0; i < n; i++) {
sequence[i] = a;
int temp = a;
a = b;
b = temp + b;
}
return sequence;
}
接口:
public interface IPower extends Remote{
//Declare available methods and must throw RemoteException
int[] fibonacciArrayTest(int fibMax) throws RemoteException;
}
注意:所有需要描述和回答问题的信息都必须包含在问题本身中。你提供的pastebin链接是无意义的浪费时间。 – EJP 2014-12-02 02:05:52
@RambabuMandalapu删除的答案确实是一个答案。只是一个错误的答案。奇怪的评论。 – EJP 2016-10-10 07:42:31