我目前在Java中遇到了一个奇怪的问题，这是我以前从未见过的。
错误是“无法访问类型Server的封闭实例。必须使用类型Server的封闭实例限定分配（例如，在x.new A()中，x是Server的一个实例）。”
我已经在代码中标注出现错误的行。
package game;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.StringTokenizer;
public class Server {
private static List<ThreadModtagClient> clients;
class ReceiveDataListener implements SocketListener {
@Override
public void dataReceived(ThreadModtagClient client, String data) {
}
}
/**
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException {
// TODO Auto-generated method stub
clients = new ArrayList<ThreadModtagClient>();
ServerSocket welcomeSocket = new ServerSocket(16567);
while (true) {
Socket connectionSocket = welcomeSocket.accept();
ThreadModtagClient client = new ThreadModtagClient(connectionSocket);
ReceiveDataListener listener = new ReceiveDataListener(); // <--- this is where the error occurs
client.addSocketListener(listener);
clients.add(client);
}
}
}
class ThreadModtagClient extends Thread implements SocketThread {
private BufferedReader inFromClient;
private DataOutputStream outToClient;
private Player player;
private List<SocketListener> listeners;
public ThreadModtagClient(Socket connection) throws IOException {
inFromClient = new BufferedReader(new InputStreamReader(connection.getInputStream()));
outToClient = new DataOutputStream(connection.getOutputStream());
listeners = new ArrayList<SocketListener>();
}
public void addSocketListener(SocketListener listener) {
listeners.add(listener);
}
public void removeSocketListener(SocketListener listener) {
listeners.remove(listener);
}
public Player getPlayer() {
return player;
}
public void setPlayer(Player player) {
this.player = player;
}
public void sendData(String data) throws IOException {
outToClient.writeChars(data);
}
public void run() {
while (true) {
try {
String data = inFromClient.readLine();
for(SocketListener listener : listeners) {
listener.dataReceived(this, data);
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch(NoSuchElementException e1) {
e1.printStackTrace();
}
}
}
}