Here what I am doing:
On clicking Search flight, the data comes from Database and display on another JFrame like this:
I want this data to be shown right below the searching panel instead of opening new frame. Something like this:
My codes are as follows:
listingFlight.java
public class listingFlight extends javax.swing.JPanel implements TableCellRenderer {
public listingFlight() {
initComponents();
}
#SuppressWarnings("unchecked")
//Netbeans autogenerated componnent code
#Override
public Component getTableCellRendererComponent(JTable jTable, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
this.jLabel3.setText(jTable.getModel().getValueAt(row, column).toString()+" ("+jTable.getModel().getValueAt(row, column+1).toString()+")");
this.jLabel4.setText(jTable.getModel().getValueAt(row, column+2).toString()+" ("+jTable.getModel().getValueAt(row, column+3).toString()+")");
this.jLabel6.setText(jTable.getModel().getValueAt(row, column+9).toString());
this.jLabel8.setText(jTable.getModel().getValueAt(row, column+6).toString());
this.jLabel11.setText(jTable.getModel().getValueAt(row, column+8).toString());
this.jLabel12.setText(jTable.getModel().getValueAt(row, column+7).toString());
this.jLabel15.setText(jTable.getModel().getValueAt(row, column+4).toString());
this.jLabel16.setText(jTable.getModel().getValueAt(row, column+5).toString());
return this;
}
}
(on clicking button "Search Flight", i m performing this.)
try {
stmt = conn.createStatement();
rs = stmt.executeQuery("select s.airportName,s.cityName,d.airportName,d.cityName,f.srcTime,f.destTime,f.flightNumber,f.availability,f.price,a.airlineName,f.flightID from flights f inner join airlines a on(a.airlineID=f.flightName) inner join cityinfo s on(s.cityID=f.src) inner join cityinfo d on(d.cityID=f.dest) where f.src=" + jComboBox1.getSelectedIndex() + " and f.dest=" + jComboBox2.getSelectedIndex());
while (rs.next()) {
i++;
}
rs.beforeFirst();
data = new Object[i][11];
i = 0;
while (rs.next()) {
data[i][0] = rs.getString(1);
data[i][1] = rs.getString(2);
data[i][2] = rs.getString(3);
data[i][3] = rs.getString(4);
data[i][4] = rs.getString(5);
data[i][5] = rs.getString(6);
data[i][6] = rs.getString(7);
data[i][7] = rs.getString(8);
data[i][8] = rs.getString(9);
data[i][9] = rs.getString(10);
data[i][10] = rs.getString(11);
i++;
}
table = new JTable(data, columnNames) {
#SuppressWarnings("override")
public TableCellRenderer getCellRenderer(int row, int column) {
return new listingFlight();
}
};
showFrame(table);
table.setRowHeight(82);
conn.close();
}
For now showFrame() is :
private void showFrame(JTable table) {
JFrame f = new JFrame("Search Result");
f.setSize(800, 700);
f.add(new JScrollPane(table));
f.setVisible(true);
}
But i m trying to add jScrollPane to existing JPanel instead of creating new JFrame and displaying Data to it
private void showFrame(JTable table) {
this.jPanel1.add(new JScrollPane(table));
}
This showFrame is not adding JScrollPane to my existing jPanel1.
Related
For some reason my JTable is not displaying it's column names?! I'm certain I've done everything correctly. I've literally copied this from a demonstration so I don't understand why it won't work.
Here is my code:
public class MemTableModel extends AbstractTableModel{
private ArrayList<member> members = new ArrayList<member>();
private String[] columnNames = {"ID", "Name", "Email", "Country", "Genre",
"Gender", "Description", "Type", "Limit", "Card No", "Expiry Date"};
public MemTableModel(){
LoadTableFromDB();
}
public int getRowCount(){
return members.size();
}
public int getColumnCount(){
return columnNames.length;
}
public Object getValueAt(int row, int col){
//Get the row from the about get method
member f = members.get(row);
switch(col){
case 0: return f.getmembId();
case 1: return f.getname();
case 2: return f.getemail();
case 3: return f.getcountry();
case 4: return f.getfavGenre();
case 5: return f.getgender();
case 6: return f.getdescription();
case 7: return f.getmemberType();
case 8: return f.getsongLimit();
case 9: return f.getcard_no();
case 10: return f.getexpiry_date();
}
return null;
}
public String getColumnName(int col){
return columnNames[col];
}
public member getRow(int row){
member c = members.get(row);
return c;
}
public Connection getConnection(){
Connection conDB = null;
/****** DEFAULT MYSQL DRIVERS **************************/
String url = connection.geturl();
String username = connection.getUsername();
String password = connection.getPassword();
try{
//load the MYSQL driver
Class.forName(connection.getDriver());
conDB = DriverManager.getConnection(url, username, password);
}
catch(Exception e){
}
return conDB;
}
//Load all DB values into ARRAY
public void LoadTableFromDB(){
Connection conDB = null;
Statement stmt = null;
ResultSet r = null;
try{
//Connection + Statement
conDB = getConnection();
stmt = conDB.createStatement();
//Queries
String sqlSelectAll = "SELECT * FROM members";
r = stmt.executeQuery(sqlSelectAll);
members.clear();
//Loop through the resultset
while(r.next()){
members.add(new member(r.getInt("membId"), r.getString("name"),
r.getString("email"), r.getString("country"), r.getString("favGenre"),
r.getString("gender"), r.getString("description"), r.getString("memberType"),
r.getString("songLimit"), r.getString("card_no"), r.getString("expiry_date")));
}
conDB.close(); // Close the DB connection
}//End of TRY
catch(Exception er){
System.out.println("Error was: " + er);
}
}
}
Here is how I've implemented the JTable:
public class ViewAll extends JFrame implements ActionListener{
//Jtextfields, buttons, labels
private JButton btnBack = new JButton("Back");
private static JLabel lblMembTitle = new JLabel("<html><h1>All Members</h1></html>");
private static JLabel lblPlayTitle = new JLabel("<html><h1>All Playlists</h1><br /></html>");
//Containers, Panels, Scrollpanes
private Container mainCon = this.getContentPane();
private static JPanel pnlTable = new JPanel(new BorderLayout());
//Jpanels - sections
private JPanel mainPanel = new JPanel();
private JPanel subPanel1 = new JPanel();
private JPanel subPanel2 = new JPanel();
private JPanel subPanel3 = new JPanel();
//Tables
private static JTable tblShowAllMemb = new JTable();
private static JTable tblShowAllPlay = new JTable();
JScrollPane scrollPane = new JScrollPane(mainPanel, ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
public ViewAll(){
super("Search/Edit/Delete Members");
this.setBounds(400, 800, 854,400);
this.setVisible(true);
mainCon.add(scrollPane);
//Table Models:
MemTableModel tblMembers = new MemTableModel();
PlayTableModel tblPlaylist = new PlayTableModel();
//LAYOUT
/*By removing this the scrollpane works
^^mainPanel is already added to the scrollPane object above ^^
*/
// mainCon.add(mainPanel);
//Main Panel
mainPanel.setLayout(new BorderLayout());
mainPanel.add(BorderLayout.NORTH, subPanel1);
mainPanel.add(BorderLayout.CENTER, subPanel2);
//Panel1 - Member table + Back Button
subPanel1.setLayout(new BorderLayout());
subPanel1.add(BorderLayout.NORTH, btnBack);
subPanel1.add(BorderLayout.CENTER, lblMembTitle);
subPanel1.add(BorderLayout.SOUTH, tblShowAllMemb);
tblShowAllMemb.setModel(tblMembers);
btnBack.addActionListener(this);
//Panel2 - Playlist table
subPanel2.add(BorderLayout.NORTH, lblPlayTitle);
subPanel2.add(BorderLayout.CENTER, tblShowAllPlay);
tblShowAllPlay.setModel(tblPlaylist);
}
#Override
public void actionPerformed(ActionEvent e) {
if(e.getSource() == btnBack){
this.dispose();
}
}
}
The likely issue is you've not wrapped the JTable, which represents your TableModel in a JScrollPane as demonstrated in How to Use Tables
By simply using something like...
add(new JScrollPane(new JTable(new MemTableModel())));
I can get:
See also How to Use Scroll Panes for more details
Updated based on updated code...
Not one of your tables is actually wrapped within it's own JScrollPane
// By the way, static here is very, very bad idea
private static JTable tblShowAllMemb = new JTable();
private static JTable tblShowAllPlay = new JTable();
JScrollPane scrollPane = new JScrollPane(mainPanel, ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
public ViewAll(){
//....
//Table Models:
MemTableModel tblMembers = new MemTableModel();
PlayTableModel tblPlaylist = new PlayTableModel();
//...
subPanel1.add(BorderLayout.SOUTH, tblShowAllMemb);
//...
subPanel2.add(BorderLayout.CENTER, tblShowAllPlay);
You've just added the table by itself to some other container. Instead, consider using something like
//...
subPanel1.add(BorderLayout.SOUTH, new JScrollPane(tblShowAllMemb));
//...
subPanel2.add(BorderLayout.CENTER, new JScrollPane(tblShowAllPlay));
I'm making a simple program that show the teams, the matches and racking goal of Euro2016 in France.
I have some problem with JTable when changing query.
Here is what happens:
when I change from a Table of (for example) 10 rows to another one that contains only 5 rows it works. But if I change from a table that contains 5 rows to another of 10, the table doesn't change, it displays only 5 rows.
Here the code:
public class Euro2016GUI extends JFrame {
private Container container;
private Sfondo pnlSfondo;
JTable table;
JPanel panel;
static Vector<Vector<String>> data = new Vector<Vector<String>>();
static Vector<String> headers = new Vector<String>();
public Euro2016GUI() {
data.removeAll(data);
headers.removeAll(headers);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setSize(600, 400);
this.setTitle("Euro2016");
this.setLocationRelativeTo(null);
pnlSfondo = new Sfondo();
container = this.getContentPane();
container.add(pnlSfondo);
}
public void createTable(String pQuery) {
data.removeAll(data);
headers.removeAll(headers);
Control control = new Control();
panel = new JPanel(new BorderLayout());
panel.setSize(300, 300);
panel.setBackground(Color.red);
control.getData(pQuery);
data = control.getData();
headers = control.getHeaders();
//this is the model which contain actual body of JTable
DefaultTableModel model = new DefaultTableModel(data, headers);
table = new JTable(model);
table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
table.setEnabled(false);
table.setMaximumSize(new Dimension(100, 300));
header_size();
JScrollPane scroll = new JScrollPane(table);
//scroll.setSize(600, 400);
scroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
scroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
this.getContentPane().add(panel);
panel.add(scroll, BorderLayout.CENTER);
}
public void header_size() {
int colonne = table.getColumnModel().getColumnCount();
TableColumn column;
for (int i = 0; i < colonne; i++) {
column = table.getColumnModel().getColumn(i);
column.setPreferredWidth(200);
}
}
public void cleanData() {
if (table != null) {
DefaultTableModel dm = (DefaultTableModel) table.getModel();
dm.setRowCount(0);
table.revalidate();
}
data.removeAll(data);
headers.removeAll(headers);
}
}
CLASS CONTROL
public class Control {
private static Vector<Vector<String>> data = new Vector<Vector<String>>();
private static Vector<String> headers = new Vector<String>();
public void getData(String pQuery) {
// Enter Your MySQL Database Table name in below Select Query.
String query = pQuery;
Connection con = null;
ResultSet rs;
Statement st = null;
int colonne = 0;
data.removeAll(data);
headers.removeAll(headers);
try {
con = DBConnectionPool.getConnection();
st = con.createStatement();
rs = st.executeQuery(query);
ResultSetMetaData rsmd = rs.getMetaData();
colonne = rsmd.getColumnCount();
for (int i = 1; i <= colonne; i++) {
headers.add(rsmd.getColumnName(i));
}
while (rs.next()) {
Vector<String> d = new Vector<String>();
for (int i = 1; i <= colonne; i++) {
d.add(rs.getString(i));
}
data.add(d);
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
if (st != null) {
try {
st.close();
} catch (SQLException ex) {
Logger.getLogger(DataInJTable.class.getName()).log(Level.SEVERE, null, ex);
}
}
if (con != null) {
DBConnectionPool.releaseConnection(con);
}
}
}
public Vector<Vector<String>> getData() {
return this.data;
}
public Vector<String> getHeaders() {
return this.headers;
}
}
HERE THE ACTION LISTENER IN THE MENU:
...
//----ROSE---//
private class OnClickRose implements ActionListener {
Sfondo sfondo;
#Override
public void actionPerformed(ActionEvent e) {
String str = e.getActionCommand();
str = str.replace("[", "");
str = str.replace("]", "");
String sx = "'";
String dx = "'";
String query = query2.concat(sx.concat(str.concat(dx)));
//frame.cleanData();
sfondo = frame.getPnlSfondo();
if (sfondo.isVisible() && sfondo.getParent().isVisible()) {
sfondo.setVisible(false);
}
frame.createTable(query);
}
}
//----CALENDARIO----//
private class OnClickCalendario implements ActionListener {
Sfondo sfondo;
#Override
public void actionPerformed(ActionEvent e) {
frame.cleanData();
sfondo = frame.getPnlSfondo();
if (sfondo.isVisible() && sfondo.getParent().isVisible()) {
sfondo.setVisible(false);
}
frame.createTable(query4);
}
}
//----CLASSIFICA MARCATORI----//
private class OnClickMarcatori implements ActionListener {
Sfondo sfondo;
#Override
public void actionPerformed(ActionEvent e) {
frame.cleanData();
sfondo = frame.getPnlSfondo();
if (sfondo.isVisible() && sfondo.getParent().isVisible()) {
sfondo.setVisible(false);
}
frame.createTable(query3);
}
}
...
Could anybody tell me where I wrong?
Basically to tell the table to refresh itself, you just call the method fireTableDataChanged() of it's table model.
So in your example, after you run the query, you could just call:
((DefaultTableModel)yourTable.getModel()).fireTableDataChanged();
But I suggest you to stop using default table model, and implement your own table model. It's a lot easier to work.
Hi i have a j list where i want to put some database value and want to create jlist automatically but when i try to do this i am not able to achieve this when do i got only one value from database to jlist
how can i achieve this?
here is my code
public class RootSelection1 {
private String connectionURL = "jdbc:mysql://localhost:3306/Trainpis";
private String s1="";
private String s2="";
private final Map<String, ImageIcon> imageMap;
public RootSelection1() {
try{
Class.forName("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection(connectionURL, "root", "");
Statement st=conn.createStatement();
ResultSet rs=st.executeQuery("Select route,fromr from route");
while(rs.next()){
s1=rs.getString("route");
s2=rs.getString("fromr");
}
} catch(Exception e) {
}
String[] nameList={s1,s2};
imageMap = createImageMap(nameList);
JList list = new JList(nameList);
list.setCellRenderer(new MarioListRenderer());
JScrollPane scroll = new JScrollPane(list);
scroll.setPreferredSize(new Dimension(300, 400));
JFrame frame = new JFrame();
frame.add(scroll);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setExtendedState(JFrame.MAXIMIZED_BOTH);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
public class MarioListRenderer extends DefaultListCellRenderer {
Font font = new Font("helvitica", Font.BOLD, 24);
#Override
public Component getListCellRendererComponent(
JList list, Object value, int index,
boolean isSelected, boolean cellHasFocus) {
JLabel label = (JLabel) super.getListCellRendererComponent(
list, value, index, isSelected, cellHasFocus);
label.setVerticalTextPosition(JLabel.TOP);
label.setHorizontalTextPosition(JLabel.CENTER);
label.setBorder(new MatteBorder( 0, 0, 2, 0, Color.GRAY));
label.setIcon(imageMap.get((String) value));
label.setHorizontalTextPosition(JLabel.RIGHT);
label.setFont(font);
return label;
}
}
private Map<String, ImageIcon> createImageMap(String[] list) {
Map<String, ImageIcon> map = new HashMap<>();
for (String s : list) {
map.put(s, new ImageIcon("E:\\SOFTWARE\\TrainPIS\\res\\drawable\\yellow.png"));
}
return map;
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
new RootSelection1 ();
// ComboboxDemo cb=new ComboboxDemo();
//System.out.println(cb.a);
}
});
}
}
Thanks in advance
You got only one value (one row) because
while(rs.next()){
s1=rs.getString("route");
s2=rs.getString("fromr");
}
has looped already thru the whole record set and s1,s2 hold the values of the last row in the record set.
Try something like this:
List<String> nameList = new ArrayList<String>();
try{
Class.forName("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection(connectionURL, "root", "");
Statement st=conn.createStatement();
ResultSet rs=st.executeQuery("Select route,fromr from route"
while(rs.next()){
String s1=rs.getString("route");
String s2=rs.getString("fromr");
nameList.add(s1+" "+s2);
}
} catch(Exception e) {
}
JList list = new JList(nameList.toArray());
I'm passing values for a java file which creates a JTable.
ResultSet res = np.InvestmentByInvestType(IType);
String tablename = "Investment By Invest Type";
int customAmt = np.showCustomizeInvestAmount1(IType);
CommonTable ct = new CommonTable();
ct.CommonSearchTable(res, customAmt,tablename);
I created a button in CommonSearchTable to export the JTable data using the ResultSet. But it showing error "Operation not allowed after ResultSet closed". A method in CommonSearchTable.java is as below:
public void CommonSearchTable( final ResultSet res, int totally, final String tablename) throws SQLException
{
JButton exportTable= new JButton ("Export");
ResultSetMetaData metaData = res.getMetaData();
// names of columns
Vector<String> columnNames = new Vector<String>();
int columnCount = metaData.getColumnCount();
for (int column = 1; column <= columnCount; column++)
{
columnNames.add(metaData.getColumnName(column));
}
// data of the table
Vector<Vector<String>> data = new Vector<Vector<String>>();
while (res.next())
{
Vector<String> vector = new Vector<String>();
for (int columnIndex = 1; columnIndex <= columnCount; columnIndex++)
{
vector.add(res.getString(columnIndex));
}
data.add(vector);
}
model1 = new DefaultTableModel(data, columnNames);
JTable table = new JTable(model1);
int rows = table.getRowCount();
Sorter = new TableRowSorter<DefaultTableModel> (model1);
table.setRowSorter(Sorter);
showSearchPages(30, 1);
table.setModel(model1);
String showTotal = "Total Amount : Rs."+totally+"/-";
JPanel footer = new JPanel();
JLabel show = new JLabel(showTotal);
box1.setBounds(10,30,800,30);
show.setBounds(10, 60, 100, 30);
show.setFont(new Font("Tahoma",Font.BOLD,16));
footer.add(box1);
footer.add(show);
footer.setPreferredSize(new Dimension(800,100));
JPanel holdingPanel = new JPanel(null);
JScrollPane sp = new JScrollPane(table);
JButton print = new JButton ("Print");
print.setBounds(10,10,100,30);
exportTable.setBounds(120,10,100,30);
sp.setBounds(10,50,780,580);
holdingPanel.add(print);
holdingPanel.add(exportTable);
holdingPanel.add(sp);
JFrame f = new JFrame("Search Results");
f.getContentPane().add(holdingPanel,BorderLayout.CENTER);
f.getContentPane().add(sp.getVerticalScrollBar(),BorderLayout.EAST);
f.getContentPane().add(footer,BorderLayout.SOUTH);
f.setPreferredSize(new Dimension(850,680));
f.pack();
f.setLocationRelativeTo(null);
f.dispose();
f.setResizable(false);
f.setIconImage(img.getImage());
f.setVisible(true);
exportTable.addActionListener(new ActionListener()
{
#Override
public void actionPerformed(ActionEvent aev)
{
try
{
ExportFile ef = new ExportFile();
ef.WriteFile(res, tablename);
}
catch (SQLException | IOException ex)
{
Logger.getLogger(CommonTable.class.getName()).log(Level.SEVERE, null, ex);
}
}
});
print.addActionListener(new ActionListener()
{
#Override
public void actionPerformed(ActionEvent e)
{
PrinterJob printJob = PrinterJob.getPrinterJob();
if (printJob.printDialog())
try
{
printJob.print();
}
catch(PrinterException pe)
{
}
}
});
}
Please show me the way.
As you can read in the docs for Resultset:
A ResultSet object is automatically closed when the Statement object
that generated it is closed, re-executed, or used to retrieve the next
result from a sequence of multiple results.
This means you have to copy the result data into another data structure (like a list, map, whatever suits your needs) before closing the database connection.
Look at this example this will help you. In this example we fetch all data from database on jcombobox actionlistener. Change this according to your need.
class Credit extends JFrame implements ActionListener{
private String value4="0";
private String val="0";
private String val1="0";
private String jama="0",baki="0";
private String nettdate="0",nettb="0",nettbal="0";
private int row=0,count=0,aa=0,bb=0,t1=0;
private String tj1="0",tb1="0",gt1="0";
String h[]={"TID","Date","Jama","Baki","Nett"};
private TableModel buildTableModel(ResultSet rs) throws SQLException {
ResultSetMetaData metaData = rs.getMetaData();
// names of columns
Vector<String> columnNames = new Vector<String>();
int columnCount = metaData.getColumnCount();
for (int column = 0; column < columnCount; column++) {
//columnNames.add(metaData.getColumnName(column));
columnNames.add(h[column]);
}
// data of the table
//Vector<Object> vector = new Vector<Object>();
//Vector<Object> vector1 = new Vector<Object>();
Vector<String> vector1 = new Vector<String>();
Vector<String> vector2 = new Vector<String>();
Vector<Vector<String>> data = new Vector<Vector<String>>();
//Vector<Vector<Object>> data = new Vector<Vector<Object>>();
while (rs.next()) {
//for (int columnIndex = 1; columnIndex <= columnCount; columnIndex++) {
Vector<String> vector = new Vector<String>();
//vector.add(rs.getString(columnIndex));
vector.add(rs.getString(1));
vector.add(rs.getString(2));
vector.add(rs.getString(3));
vector.add(rs.getString(4));
vector.add(rs.getString(5));
// System.out.println(vector);
//}
count++;
data.add(vector);
//System.out.println(data.get(0).get(0));
}
for(int i=0;i<count;i++){
//aa=aa+Integer.parseInt(data.get(i).get(2));
aa=aa+Integer.parseInt(table.getValueAt(i, 2).toString());
System.out.println(table.getValueAt(i, 2).toString());
System.out.println("A:"+aa);
//bb=bb+Integer.parseInt(data.get(i).get(3));
bb=bb+Integer.parseInt(table.getValueAt(i, 3).toString());
System.out.println(table.getValueAt(i, 3).toString());
System.out.println("B:"+bb);
}
tj1=Integer.toString(aa);
System.out.println("TJ:"+tj1);
//header1 = new Vector<String>();
vector1.add("");
vector1.add("Total");
vector1.add(tj1);
tb1=Integer.toString(bb);
//header1 = new Vector<String>();
//header3.add("Total");
vector1.add(tb1);
vector1.add("");
//data1.setSize(table1.getRowCount()+1);
//data1.set(table1.getRowCount()-1, header3);
//data.setSize(count++);
//data.setSize(table.getRowCount()+1);
//data.set(count, header2);
System.out.println("h2:"+vector1);
data.add(vector1);
System.out.println("data:"+data);
//data.set(table.getRowCount()-1, header2);
t1=Integer.parseInt(tb1)-Integer.parseInt(tj1);
gt1=Integer.toString(t1);
System.out.println("GT:"+gt1);
vector2.add("");
vector2.add("Nett Balance");
//header4.add("");
vector2.add("");
vector2.add(gt1);
vector2.add("");
//data.setSize(table.getRowCount()+1);
//data.setSize(count++);
data.add(vector2);
System.out.println("data1:"+data);
//data.set(count, header3);
//data.set(table.getRowCount()-1, header3);
//header2.add("");
count=0;
aa=0;
bb=0;
t1=0;
tj1="0";
tb1="0";
gt1="0";
return new DefaultTableModel(data, columnNames);
}
private static final int GAP = 5;
private static final Font BTN_FONT = new Font(Font.DIALOG, Font.PLAIN, 15);
private JPanel mainPanel = new JPanel();
JButton add,cancel,show,search,print,update,delete,net;
JTextField jTextField,jTextField1,jTextField2,jTextField3,jTextField4,jTextField5;
JComboBox jComboBox;
String Select[]={"Select"};
Object name,s1;
String an="0",nam="0",mono="0",cit="0";
int token=0,tid=1,a,stid=0;
JFrame f;
AbstractAction action;
private String id;
Connection con=null;
Statement st=null;
ResultSet rs=null;
//private String stid;
JPanel tablePanel;
DefaultTableModel model;
DefaultTableModel model1;
JTable table,table3;
private Vector<Vector<String>> data; //used for data from database
private Vector<Vector<String>> data1; //used for data from database
private Vector<String> header; //used to store data header
private Vector<String> header2; //used to store data header
private Vector<String> header3;
private Vector<String> header4;
private JLabel jlab4,jlab5,jlab6,jlab7;
Credit(JFrame frm){
Toolkit tk=Toolkit.getDefaultToolkit();
Image img=tk.getImage("1.jpg");
setIconImage(img);
JPanel creditPanel = createPanel1("Customer Credit & Debit Amount");
tablePanel = createPanel2("Customer Credit & Debit Table");
creditPanel.setBackground(Color.WHITE);
tablePanel.setBackground(Color.WHITE);
mainPanel.setLayout(new BorderLayout());
mainPanel.setBorder(BorderFactory.createEmptyBorder(GAP, GAP, GAP, GAP));
mainPanel.add(creditPanel, BorderLayout.PAGE_START);
mainPanel.add(tablePanel, BorderLayout.CENTER);
creditPanel.setVisible(true);
mainPanel.setBackground(Color.BLACK);
frm.add(mainPanel);
}
private JPanel createPanel2(String title){
tablePanel=new JPanel();
tablePanel.setLayout(new BoxLayout(tablePanel,BoxLayout.Y_AXIS));
header = new Vector<String>();
header.add("TID");
header.add("Date");
header.add("Jama");
header.add("Baki");
header.add("Nett");
header4 = new Vector<String>();
header4.add("A/C No.");
header4.add("Name");
//header4.add("Date");
header4.add("Mobile");
header4.add("City");
model=new DefaultTableModel(data,header);
model1=new DefaultTableModel(data1,header4);
table = new JTable(model);
table3 = new JTable(model1);
table.setRowSorter(new TableRowSorter(model));
table.setRowHeight(30);
table3.setRowHeight(30);
table.setFont(new Font("Times New Roman",Font.BOLD,15));
table3.setFont(new Font("Times New Roman",Font.BOLD,15));
table.getTableHeader().setFont( new Font( "Times New Roman" , Font.BOLD, 15 ));
table3.getTableHeader().setFont( new Font( "Times New Roman" , Font.BOLD, 15 ));
table.setDefaultRenderer(Object.class, new TableCellRenderer(){
table3.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
table3.getColumnModel().getColumn(0).setPreferredWidth(123);
table3.getColumnModel().getColumn(1).setPreferredWidth(250);
table3.getColumnModel().getColumn(2).setPreferredWidth(123);
table3.getColumnModel().getColumn(3).setPreferredWidth(125);
JScrollPane scroll=new JScrollPane(table);
JScrollPane scroll1=new JScrollPane(table3);
scroll1.setPreferredSize(new Dimension(50,63));
JPanel p=new JPanel();
JButton btn=new JButton("Print");
JButton btn1=new JButton("Export");
p.add(btn);
p.add(btn1);
tablePanel.add(p);
tablePanel.add(scroll1);
tablePanel.add(scroll);
tablePanel.setBorder(BorderFactory.createTitledBorder(title));
return tablePanel;
}
private JPanel createPanel1(String title) {
JPanel addUnitPanel = new JPanel();
addUnitPanel.setLayout(new GridLayout(4,1, GAP, GAP));
JLabel jlab=new JLabel("Name:");
jComboBox=new JComboBox(Select);//Select
jlab.setPreferredSize(new Dimension(100,10));
jComboBox.setPreferredSize(new Dimension(150,30));
jComboBox.addActionListener(new ActionListener(){
private int b=0,a=0;
private String tj="0";
private String tb="0";
private int t=0;
private String gt="0";
public void actionPerformed(ActionEvent ae){
try
{
Connection con=null;
Statement st=null;
ResultSet rs=null;
// ResultSet rs1=null;
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String url=null,userID=null,password=null;
String dbFileName=null;
String sql=null;
dbFileName = "C:/Program Files/Shop/shop.accdb";
//userID = "Admin";
password = "3064101991";
url = "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb, *.accdb)};"+
"DBQ="+dbFileName+";"+
"Pwd="+password+";";
//sql = "SELECT * FROM tblUserProfile";
Object name=jComboBox.getSelectedItem();
con=DriverManager.getConnection(url);//,"system","manager"
st=con.createStatement();
model.setRowCount(0);
model1.setRowCount(0);
b=0;
a=0;
tj="0";
tb="0";
t=0;
gt="0";
an="0";nam="0";mono="0";cit="0";
DBEngine dbengine = new DBEngine();
data = dbengine.getJamaCustomer(name);
data1 = dbengine.getIdName(name);
System.out.println("data:"+data1);
Object[] d3={data1.get(0).get(0),data1.get(0).
get(1),data1.get(0).get(3),data1.get(0).get(4)};
model1.addRow(d3);
JTable table1=new JTable(data,header);
for(int i=0;i<table1.getRowCount();i++){
Object[] d={data.get(i).get(0),data.get(i).get(1),
data.get(i).get(2),data.get(i).get(3),data.get(i).get(4)};
model.addRow(d);
}
for(int i=0;i<table1.getRowCount();i++){
a=a+Integer.parseInt(data.get(i).get(2));
b=b+Integer.parseInt(data.get(i).get(3));
}
tj=Integer.toString(a);
tb=Integer.toString(b);
Object[] d1={"","Total",tj,tb,""};
model.addRow(d1);
t=Integer.parseInt(tb)-Integer.parseInt(tj);
gt=Integer.toString(t);
Object[] d2={"","Nett Balance","",gt,""};
model.addRow(d2);
table = new JTable(model);
table3 = new JTable(model1);
table.setRowHeight(30);
table3.setRowHeight(30);
JScrollPane scroll=new JScrollPane(table);
JScrollPane scroll1=new JScrollPane(table3);
//scroll.setBackground(Color.red);
tablePanel.add(scroll1);
tablePanel.add(scroll);
rs.close();
// rs1.close();
st.close();
con.close();
}
catch(Exception e)
{
System.out.println("GG"+e);
}
}
});
JPanel p1=new JPanel();
p1.add(jlab);
p1.add(jComboBox);
addUnitPanel.add(p1);
loadcombo2();
addUnitPanel.setBorder(BorderFactory.createTitledBorder(title));
return addUnitPanel;
}
void loadcombo2()
{
try
{
Connection con=null;
Statement st=null;
ResultSet rs=null;
// ResultSet rs1=null;
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String url=null,userID=null,password=null;
String dbFileName=null;
String sql=null;
dbFileName = "C:/Program Files/Shop/shop.accdb";
//userID = "Admin";
password = "3064101991";
url = "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb, *.accdb)};"+
"DBQ="+dbFileName+";"+
"Pwd="+password+";";
//sql = "SELECT * FROM tblUserProfile";
con=DriverManager.getConnection(url);//,"system","manager"
st=con.createStatement();
rs= st.executeQuery("select distinct(Name) from ManageCustomer");
//rs1=st.executeQuery("select Unit from AddUnit");
while(rs.next())
{
jComboBox.addItem(rs.getString(1));
//jComboBox1.addItem(rs1.getString(1));
}
rs.close();
// rs1.close();
st.close();
con.close();
}
catch(Exception e)
{
System.out.println("GG"+e);
}
}
#Override
public void actionPerformed(ActionEvent ae){
if(ae.getSource()==print){
//Your print code
}
if(ae.getSource()==Export){
//Add jComboBox.addActionListener code here
}
}
public static void main(String args[]){
JFrame frm=new JFrame("Title");
Credit b=new Credit(frm);
//frm.setSize(650, 236);
frm.setSize(650, 700);
frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frm.setResizable(false);
frm.setLocationRelativeTo(null);
frm.show();
}
}
This program is used to read data from database. In the database,there are three tables pki17, pki18, pkn18. For viewing different tables,JComboBox is used and it works by changing the TableModel of the table. Also by using tableChanged method I made table editable. When a cell value in the table is changed the corresponding value in the database has to change to.
When I use tableChanged and actionPerformed methods together, value in database doesn’t get changed when I’m editing a cell in the swing table. When I remove actionPerformed method, then I can update database by editing table cells.
I need to have both abilities, to choose a table from the database by using JComboBox and update database values by editing values in the swing table.
I think the problem exists because TableModel of the table is changed in both methods. But I don’t know how to solve it.
public class TableCombobox extends JPanel implements ActionListener, TableModelListener {
static JTable table;
static JComboBox box;
static MyTableModel model;
static Connection con = null;
static Statement stmt = null;
public TableCombobox() throws SQLException {
super(new BorderLayout());
table = new JTable(new MyTableModel("pki18"));
table.setPreferredScrollableViewportSize(new Dimension(500, 400));
table.setFillsViewportHeight(true);
table.getModel().addTableModelListener(this);
JScrollPane scrollPane = new JScrollPane(table);
JPanel menuPanel = new JPanel();
menuPanel.setLayout(new BoxLayout(menuPanel, BoxLayout.Y_AXIS));
menuPanel.setBorder(BorderFactory.createMatteBorder(0, 0, 0, 1,
Color.black));
String[] dalykas = { "Chose groop", "pki17", "pki18", "pkn18" };
box = new JComboBox(dalykas);
box.setMaximumSize(new Dimension(150, 25));
box.setAlignmentX(Component.LEFT_ALIGNMENT);
box.addActionListener(this);
box.setSelectedIndex(2);
menuPanel.add(box);
JPanel cards = new JPanel(new CardLayout());
cards.add(scrollPane, "view");
add(menuPanel, BorderLayout.LINE_START);
add(cards, BorderLayout.CENTER);
}
public void tableChanged(TableModelEvent e) {
int row = e.getFirstRow();
int col = e.getColumn();
model = (MyTableModel) e.getSource();
String stulpPav = model.getColumnName(col);
Object data = model.getValueAt(row, col);
Object studId = model.getValueAt(row, 0);
System.out.println("tableChanded works");
try {
new ImportData(stulpPav, data, studId);
} catch (ClassNotFoundException e1) {
e1.printStackTrace();
} catch (SQLException e1) {
e1.printStackTrace();
}
}
public void actionPerformed(ActionEvent event) {
JComboBox cb = (JComboBox) event.getSource();
String pav = (String) cb.getSelectedItem();
if (pav != "Chose groop") {
try {
model = new MyTableModel(pav);
table.setModel(model);
} catch (SQLException e) {
e.printStackTrace();
}
}
}
private static void GUI() throws SQLException {
JFrame frame = new JFrame("E-gradebook");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setContentPane(new TableCombobox());
frame.pack();
frame.setSize(800, 400);
frame.setVisible(true);
}
public static void main(String[] args) throws SQLException {
try {
Class.forName("com.mysql.jdbc.Driver");
con = DriverManager.getConnection("jdbc:mysql://localhost/pki18",
"root", "");
GUI();
} catch (SQLException e) {
e.printStackTrace();
} catch (ClassNotFoundException e1) {
e1.printStackTrace();
} finally {
if (stmt != null)
stmt.close();
}
}
static Connection getConnection() {
return con;
}
}
public class ImportData {
static Connection con = TableCombobox.getConnection();
public ImportData(String a, Object b, Object c)
throws ClassNotFoundException, SQLException {
Statement stmt = null;
try {
String stulpPav = a;
String duom = b.toString();
String studId = c.toString();
System.out.println(duom);
con.setAutoCommit(false);
stmt = con.createStatement();
stmt.addBatch("update pki18 set " + stulpPav + " = " + duom
+ " where studento_id = " + studId + ";");
stmt.executeBatch();
con.commit();
} catch (BatchUpdateException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
} finally {
if (stmt != null)
stmt.close();
con.setAutoCommit(true);
System.out.println("Data was imported to database");
}
}
}
public class MyTableModel extends AbstractTableModel{
static int rowCount;
static Object data [][];
static String columnNames [];
public MyTableModel(String grupName) throws SQLException{
String query ="select Studento_id, vardas_pavarde, 1_semestras,"+
" 2_semestras, egzaminas, bendras_balas "+
"from pki18." + grupName;
ResultSet rs ;
Connection con = TableCombobox.getConnection();
Statement stmt = null;
stmt = con.createStatement();
rs = stmt.executeQuery(query);
rs.last();
rowCount = rs.getRow();
data = new Object[rowCount][6];
rs = stmt.executeQuery(query);
for (int iEil = 0; iEil < rowCount; iEil++){
rs.next();
data[iEil][0] = rs.getLong("Studento_id");
data[iEil][1] = rs.getString("Vardas_Pavarde");
data[iEil][2] = rs.getByte("1_semestras");
data[iEil][3] = rs.getByte("2_semestras");
data[iEil][4] = rs.getByte("Egzaminas");
data[iEil][5] = rs.getByte("bendras_balas");
}
String[] columnName = {"Asmens_kodas","Vardas_Pavarde","1_Semestras"
,"2_Semestras","Egzaminas","Bendras_Balas"};
columnNames = columnName;
}
public int getColumnCount(){
return columnNames.length;
}
public int getRowCount(){
return data.length;
}
public String getColumnName(int col){
return columnNames[col];
}
public Object getValueAt(int row, int col){
return data[row][col];
}
public Class getColumnClass(int col){
return getValueAt(0, col).getClass();
}
public boolean isCellEditable(int row, int col){
return true;
}
public void setValueAt(Object value, int row, int col){
data[row][col] = value;
fireTableCellUpdated(row, col);
}
}
In the constructor, you add the table model listener to the current model only:
table.getModel().addTableModelListener(this);
In the action event, however, you replace the table model:
model = new MyTableModel(pav);
table.setModel(model);
As a consequence, the new table model won't have the listener, and you won't receive notifications any more. Have the actionPerformed method add the listener as well, and your problem should be fixed.