我在这段代码中有一点问题。我想显示一个JTable
与列标题但问题是,column's titles
不被显示,作为截图下图为:JTable未显示colums标题
private static final String DB_DRIVER = "oracle.jdbc.driver.OracleDriver";
private static final String DB_CONNECTION = "jdbc:oracle:thin:@localhost:1521:DB";
private static final String DB_USER = "*******";
private static final String DB_PASSWORD = "********";
Connection conn = null;
Statement stmt = null;
static Vector<Vector<String>> dataJ, dataC, data;
Vector<String> columnJ,
public void getCleubJoueurData() {
data = new Vector<Vector<String>>();
colum = new Vector<String>();
colum.add("nom");
colum.add("nom_cleub");
colum.add("numero_maillot");
colum.add("nationalite");
String query = "SELECT joueur.NOM,CLEUB.NOM_CLEUB," +
"JOUEUR_CLEUB.NUMERO_MAILLOT, joueur.NATIONALITE " +
"FROM joueur JOIN JOUEUR_CLEUB ON joueur.ID_J=" +
"JOUEUR_CLEUB.ID_J JOIN CLEUB ON JOUEUR_CLEUB.ID_C=CLEUB.ID_C";
try {
try {
Class.forName(DB_DRIVER);
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
conn = DriverManager.getConnection(DB_CONNECTION, DB_USER, DB_PASSWORD);
stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery(query);
while (rs.next()) {
Vector<String> vstring = new Vector<String>();
vstring.add(rs.getString("nom"));
vstring.add(rs.getString("nom_cleub"));
vstring.add(rs.getString("numero_maillot"));
vstring.add(rs.getString("nationalite"));
data.add(vstring);
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
if (stmt != null) {
try {
stmt.close();
} catch (SQLException ex) {
}
}
}
}
public App() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 882, 477);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JTabbedPane tabbedPane = new JTabbedPane(JTabbedPane.TOP);
tabbedPane.setBackground(Color.WHITE);
tabbedPane.setBounds(40, 43, 812, 390);
contentPane.add(tabbedPane);
JPanel panel = new JPanel();
tabbedPane.addTab("joueurs", null, panel, null);
panel.setLayout(null);
getJoueurData();
DefaultTableModel mode = new DefaultTableModel(data, column);
table = new JTable(model);
table.setToolTipText("");
table.setBounds(0, 94, 819, 269);
panel.add(table);
}
这不是代码给你的错误,或者是这个错字!!!!尽管你传递'new JTable(model)',然后你创建了__colum = new Vector()__,但是你传递了''new DefaultTableModel(data,column)'',所以你创建'DefaultTableModel'引用时使用名称__mode__。请纠正这些错误,如果他们只是错字,否则提及他们以及某处:-) –