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Thread: JTable, Database

  1. #1
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    Default JTable, Database

    Hello guys, I just started to code and i got a problem with this code:
    		model = new JTable();
    		model.setModel((TableModel) model);
    		final DefaultTableModel model = new DefaultTableModel(new String[]{"Vardas,Pavard\u0117", "\u012Emon\u0117", "Patik. Data", "Iki Data"}, 0);
     
    		JButton perkrauti = new JButton("Perkrauti s\u0105ra\u0161\u0105.");
    		perkrauti.addActionListener(new ActionListener() {
    			public void actionPerformed(ActionEvent e) {
    				try {
    	            Class.forName( "com.mysql.jdbc.Driver" );
    	            Connection connection = DriverManager.getConnection("jdbc:mysql://ip/db","root", "");	
     
    				String sql="SELECT * FROM db";
    				Statement st = connection.createStatement();
    				ResultSet rs = st.executeQuery(sql);
     
    				while(rs.next())
    				{
    				    String vp = rs.getString("Vardas,Pavard\u0117");
    				    String i = rs.getString("\u012Emon\u0117");
    				    String pd = rs.getString("Patik. Data");
    				    String id = rs.getString("Iki Data");
    				    model.addRow(new Object[]{vp, i, pd, id});
    				}
    				}
    				catch (SQLException e1) {
    				    e1.printStackTrace();
    				} catch (ClassNotFoundException e1) {
    					e1.printStackTrace();
    				}
    			}
     
     
    		});

    I get error then i started this code.
    Error:
    	at java.security.AccessController.doPrivileged(Native Method)
    	at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
    	at java.awt.EventQueue.dispatchEvent(Unknown Source)
    	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    	at java.awt.EventDispatchThread.run(Unknown Source)

    I am trying to pick from database and add to JTable row. THanks for help
    Last edited by domasbug1; October 14th, 2017 at 05:37 AM.

  2. #2
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    Default Re: JTable, Database

    model = new JTable();
    model.setModel((TableModel) model);
    final DefaultTableModel model = new DefaultTableModel
    You have a JTable named 'model' as well as a DefaultTableModel also named 'model'. I'm surprised you're able to compile and get that stacktrace (which is not complete) in the first place.

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