[질문] rmi error ..꼭 도와주세요.

글쓴이 :권영준 1999년 3월 04일 18:06:55

안녕하세요. 권영준이라고 합니다.
rmi를 공부하고 있습니다.
rmi 콜백에서 javac -d . RMIChatServer.java RMIChatServerImpl.java
하면, 4개의 에러가 떨어집니다.
에러내용 ->
1번째 에러
A default construcotr cannot be created for this class because the constructor of its superclass throws the exception java.rmi.RemoteException.
Define the constructor for this class explicitly.

2,3 번째에러
class rmichat.public not found

4번째 에러
only constructors can invoke constructors;
super()

이렇게 에러가 납니다.
그리고, rmi P/G에서는 javac -d . RMIChat.....
이런식으로 해주는데, javac -d . 는 왜 이렇게 하는거죠..
그리고, DOS Command 상에서 javac -d . 2개의 java file
이렇게 해주는데, kawa에서는 어떻게 하면되죠.(자세히)
javac -d . RMIChatClient.java RMIChatClientApplet.java 하면 에러가 없습니다.

쏘쓰를 첨부하여 드립니다.


* RMIChatServer.java

package rmichat;

import java.rmi.*;

public interface RMIChatServer extends Remote {
public void register(RMIChatClient client) throws RemoteException;
public void broadcast(String msg) throws RemoteException;
public void unregister(RMIChatClient client) throws RemoteException;
}


* RMIChatServerImpl.java

package rmichat;

import java.rmi.server.*;
import java.rmi.*;
import java.util.*;

public class RMIChatServerImpl extends UnicastRemoteObject implements RMIChatServer
{
Vector clientList;
pulbic RMIChatServerImpl() throws RemoteException {
super();
clientList=new Vector(5, 5);
}

public synchronized void register(RMIChatClient client) throws RemoteException
{
clientList.addElement(client);
}

public void broadcast(String msg) throws RemoteException {
synchronized(clientList) {
Enumeration e = clientList.elements();
while(e.hasMoreElements()) {
RMIChatClient c = (RMIChatClient)e.nextElement();
c.setMessage(msg);
}
}
}

public synchronized void unregister(RMIChatClient client) throws RemoteException
{
clientList.removeElement(client);
}

public static void main(String args[]) {
System.setSecurityManager(new RMISecurityManager());
try {
RMIChatServerImpl c = new RMIChatServerImpl();
Naming.rebind("rmi://localhost/chat", c);
System.out.println("RMI Chat Server is ready.");
} catch(Exception ex) {
System.out.println(ex);
}
}

* RMIChatClient.java

package rmichat;

import java.rmi.*;

public interface RMIChatClient extends Remote {
public void setMessage(String msg) throws RemoteException;
}

* RMIChatClinetApplet.java

package rmichat;

import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.rmi.*;
import java.rmi.server.*;

public class RMIChatClientApplet extends Applet implements RMIChatClient, ActionListener {
TextArea display;
TextField input;
RMIChatServer server;

public void init() {
setLayout(new BorderLayout());
add("Center", display = new TextArea());
display.setEditable(false);
add("South", input = new TextField());
input.addActionListener(this);

try {
UnicastRemoteObject.exportObject(this);
System.out.println(getCodeBase().getHost() + "/chat");
server.register(this);
} catch (Exception ex) {
display.append(ex.toString());
}
}

public synchronized void setMessage(String msg) {
try {
display.append(msg + "\n");
} catch(Exception e) {
display.append(e.toString());
}
}

public void actionPerformed(ActionEvent e) {
Component c = (Component) e.getSource();

if(c == input) {
try {
server.broadcast(input.getText());
input.setText("");
} catch (Exception ex) {
display.append(ex.toString());
}
}
}

public void destroy() {
try {
server.unregister(this);
} catch(Exception ex) { }
}
}


* javaplugN.html

<EMBED type="application/x-java-applet;version=1.1"
code="RMIChatClientApplet.class"
pluginspage="http://java.sun.com/products/activator/ea3/plugin-install.html"
width=400 height=300>
</EMBDE>

}

다음 글들:

• 에러는 이곳에... 김필호 21:10:16 3/04/99 (1)
  • [필호님] 필호님 보세요. - rmi 다시질문 권영준 18:52:09 3/05/99 (0)

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