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嘿每个人我试图编写一个客户端服务器井字游戏，我遇到了一些问题。我真的迷失了，花了8个小时试图弄清楚什么是错的。目前我正在尝试在我的用户界面中向JTextArea附加消息。但它不想在文本区域添加任何内容。任何帮助将不胜感激。不能附加JTextArea
public class GameUI extends javax.swing.JFrame{
/**
* The circle icon
*/
private ImageIcon circle = new ImageIcon("data/tile-05.png");
/**
* The cross icon
*/
private ImageIcon cross = new ImageIcon("data/tile-03.png");
/**
* keeps track of whose turn it is
*/
private int turn = 1;
/**
* Where the hear of the game runs
*/
private Client game;
/**
* This is an 2d array that stores all the buttons
*/
JButton[][] buttons = new JButton[3][3];
/**
* Class constructor Creates new form GameUI
*/
public GameUI() {
startGame("Tic Tac");
storeButtons();
}
public void connectionError(String message) {
JOptionPane.showMessageDialog(rootPane, message, "Tic Tac Toe", 0);
}
private void startGame(String message) {
String host, login;
int temp = 0;
JTextField hostText = new JTextField();
JTextField loginText = new JTextField();
Object[] info = {"Host: ", hostText, "login ID: ", loginText};
temp = JOptionPane.showConfirmDialog(rootPane, info, message, JOptionPane.OK_CANCEL_OPTION);
while (true) {
try {
if (temp == JOptionPane.OK_OPTION) {
host = hostText.getText();
login = loginText.getText();
game = new Client(login, host, 5555, this); //Initializes the game
initComponents();
break;
} else if (temp == JOptionPane.CANCEL_OPTION || temp == JOptionPane.CLOSED_OPTION) {
System.exit(0);
}
} catch (IOException e2) {
connectionError("Can't connect to the game server!");
System.exit(0);
}
}
//Scrubs memory for more RAM :)
login = null;
host = null;
}
private void storeButtons() {
buttons[0][0] = btnTicTac1;
buttons[0][1] = btnTicTac2;
buttons[0][2] = btnTicTac3;
buttons[1][0] = btnTicTac4;
buttons[1][1] = btnTicTac5;
buttons[1][2] = btnTicTac6;
buttons[2][0] = btnTicTac7;
buttons[2][1] = btnTicTac8;
buttons[2][2] = btnTicTac9;
}
private void btnOpponentSendActionPerformed(java.awt.event.ActionEvent evt) {
String message = txtOpponentMessage.getText();
game.handleMessageFromGameUI("#Opponent " + message); //Specified the game text area
txtOpponentMessage.setText("");
}
private void btnLobbySendActionPerformed(java.awt.event.ActionEvent evt) {
String message = txtLobbyMessage.getText();
game.handleMessageFromGameUI("#lobby " + message); //Specified the lobby text area
txtLobbyMessage.setText("");
}
public void setTurn(int value) {
turn = value;
}
public void appendLobbyArea(String message) {
txtLobbyTextArea.append(message);
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
GameUI cgui = new GameUI();
cgui.setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton btnLobbySend;
private javax.swing.JButton btnOpponentSend;
private javax.swing.JButton btnTicTac1;
private javax.swing.JButton btnTicTac2;
private javax.swing.JButton btnTicTac3;
private javax.swing.JButton btnTicTac4;
private javax.swing.JButton btnTicTac5;
private javax.swing.JButton btnTicTac6;
private javax.swing.JButton btnTicTac7;
private javax.swing.JButton btnTicTac8;
private javax.swing.JButton btnTicTac9;
private javax.swing.JComboBox jComboBox1;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JScrollPane jScrollPane2;
private javax.swing.JScrollPane jScrollPane4;
private javax.swing.JLabel lblOpponentSelect;
private javax.swing.JList txtClientList;
private javax.swing.JTextArea txtGameTextArea;
private javax.swing.JTextField txtLobbyMessage;
private javax.swing.JTextArea txtLobbyTextArea;
private javax.swing.JTextField txtOpponentMessage;
// End of variables declaration
public void display(String message) {
System.out.println(message);
}
}
下一部分是中间人类。所有消息都通过这个类进行操作。
public class Client extends AbstractClient {
/**
* GameUI Object. Used to communicate from the game to the end user
*/
private GameUI gameUI;
/**
* This keeps track of whose turn it is. Defaults to x.
*/
private int turn = 1;
public Client(String userID, String host, int port, GameUI gameUI) throws IOException {
super(host, port);
this.gameUI = gameUI;
openConnection();
sendToServer("#login " + "<" + userID + ">");
}
@Override
public void handleMessageFromServer(Object msg) {
while (isConnected()) {
if (msg.toString().startsWith("#")) {
doFunction(msg);
} else {
}
}
}
public void handleMessageFromGameUI(String message) {
try {
sendToServer(message);
} catch (IOException e) {
gameUI.display("Can't send message to server");
System.exit(0);
}
}
private void doFunction(Object msg) {
if (msg.toString().startsWith("#connectedClient")) {
gameUI.appendLobbyArea(msg.toString().substring(17) + " connected");
} else if (msg.toString().startsWith("#disconnectedClient")) {
gameUI.appendLobbyArea(msg.toString().substring(20) + " disconnected");
} else if (msg.toString().startsWith("#lobby")) {
gameUI.appendLobbyArea(msg.toString().substring(7)); //Add client username
}
}
}
为了更好的帮助的能力更快，发布[SSCCE]（http://sscce.org/）。 –