java.sql.SQLException: Kein geeigneter Treiber für jdbc gefunden: sqlite: db/Fakturi.sqlite

Question

Ich benutze Java SWING + SQLite. Wenn ich ausführbare JAR exportieren (Option Extrahiere benötigte Bibliotheken in generierte JAR) und versuche zu laufen, gibt es einen Fehler: ....>java -jar g222.jar java.sql.SQLException: No suitable driver found for jdbc:sqlite:db/Fakturi.sqlit e

Wenn ich es unter Eclipse ausführen - es funktioniert. Hier ist mein Code:

public class MainFrame extends JFrame { 

    private JPanel contentPane; 
    private JTextField textField_6; 
    private JTextField textField_7; 



    /** 
    * Launch the application. 
    */ 
    public static void main(String[] args) { 
     EventQueue.invokeLater(new Runnable() { 
      public void run() { 
       try { 
        MainFrame frame = new MainFrame(); 
        frame.setVisible(true); 
       } catch (Exception e) { 
        e.printStackTrace(); 
       } 
      } 
     }); 
    } 

    /** 
    * Create the frame. 
    * @throws SQLException 
    */ 
    public MainFrame() throws SQLException { 
     setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     setBounds(100, 100, 643, 298); 
     contentPane = new JPanel(); 
     contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); 
     setContentPane(contentPane); 
     contentPane.setLayout(null); 

     JPanel panel = new JPanel(); 
     panel.setLayout(null); 
     panel.setBorder(new EmptyBorder(5, 5, 5, 5)); 
     panel.setBounds(10, 11, 670, 287); 
     contentPane.add(panel); 


     JPanel panel_2 = new JPanel(); 
     panel_2.setLayout(null); 
     panel_2.setBorder(new EtchedBorder(EtchedBorder.LOWERED, null, null)); 
     panel_2.setBounds(196, 51, 249, 100); 
     panel.add(panel_2); 

     JLabel label_21 = new JLabel("\u0411\u0440\u043E\u0439:"); 
     label_21.setBounds(10, 40, 128, 16); 
     panel_2.add(label_21); 

     textField_6 = new JTextField(); 
     textField_6.setText("0"); 
     textField_6.setHorizontalAlignment(SwingConstants.RIGHT); 
     textField_6.setEditable(false); 
     textField_6.setColumns(10); 
     textField_6.setBackground(new Color(135, 206, 250)); 
     textField_6.setBounds(150, 37, 42, 22); 
     panel_2.add(textField_6); 

     JLabel label_22 = new JLabel("\u041E\u0431\u0449\u0430 \u0441\u0442\u043E\u0439\u043D\u043E\u0441\u0442 \u0441 \u0414\u0414\u0421:"); 
     label_22.setBounds(10, 70, 135, 16); 
     panel_2.add(label_22); 

     textField_7 = new JTextField(); 
     textField_7.setText("0.00 \u043B\u0432."); 
     textField_7.setHorizontalAlignment(SwingConstants.RIGHT); 
     textField_7.setForeground(Color.RED); 
     textField_7.setFont(new Font("Tahoma", Font.BOLD, 11)); 
     textField_7.setEditable(false); 
     textField_7.setColumns(10); 
     textField_7.setBackground(new Color(255, 160, 122)); 
     textField_7.setBounds(150, 67, 87, 22); 
     panel_2.add(textField_7); 

     JLabel label_23 = new JLabel("\u041F\u0440\u043E\u0444\u043E\u0440\u043C\u0430 \u0444\u0430\u043A\u0442\u0443\u0440\u0438"); 
     label_23.setHorizontalAlignment(SwingConstants.CENTER); 
     label_23.setForeground(Color.GRAY); 
     label_23.setBounds(6, 6, 224, 14); 
     panel_2.add(label_23); 

     String danOsnInvoices = ConnectionToDb.stmSqlQuery("SELECT printf('%.2f', ROUND(sum(quantity*price), 2)) FROM invoices_out WHERE number = '0000000001'"); 
     textField_6.setText(danOsnInvoices); 

    } 
} 

Und Connection-Klasse ist:

public class ConnectionToDb { 

    public Connection conn = null; 
    public static final String DBURL = "jdbc:sqlite:db/Fakturi.sqlite"; 

    public static Connection connectDb() throws ClassNotFoundException,SQLException { 
     Class.forName("org.sqlite.JDBC"); 
     Connection conn = DriverManager.getConnection(DBURL); 
     return conn; 
    } 

    public static String dmlSqlQuery(String value) throws SQLException, ClassNotFoundException { 

      Statement stmt; 
      String result = null; 

       Class.forName("org.sqlite.JDBC"); 

       Connection c = DriverManager.getConnection(DBURL); 
       c.setAutoCommit(false); 

       stmt = c.createStatement(); 
       String sql = value; 
       stmt.executeUpdate(sql); 

       stmt.close(); 
       c.commit(); 
       c.close(); 

      return result; 
     } 

    public static String stmSqlQuery(String value) throws SQLException { 

     String result = null; 
     DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver()); 
     Connection con = DriverManager.getConnection(DBURL); 

     Statement statement = con.createStatement(); 

     // Enables us to retrieve values as if querying from a table 
     ResultSet rs = statement.executeQuery(value); 

     if (rs.next()) { 
      result = rs.getString(1); // get first column returned 
     } 

     rs.close(); 
     statement.close(); 
     con.close(); 
     return result; 
    } 
} 

Ich kann nicht verstehen, warum dieser Fehler zeigt.

Answer 1

Gelöst: Ich füge gerade hinzu: ConnectionToDb.connectDb(); vor irgendwelchen SQL-Abfragen.