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Clicking on button doesn't retrieve data from database

So i'm trying to make a frame where it shows a list of every item in my database after you click on the button, but actually when i click on it nothing shows.
public ArrayList show(JTextArea tData) {
ArrayList<Book> books=new ArrayList<>();
try{
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
polaczenie =DriverManager.getConnection("jdbc:sqlserver://localhost;databaseName=master",
"sa", "student");
try(Statement stmt = connection.createStatement();) {
ResultSet rs = stmt.executeQuery("{call dbo.showBook}");
while (rs.next()) {
books.add(new Book(
rs.getString("bookNumber"),
rs.getString("title"),
rs.getString("author"),
rs.getString("publicationYear"),
rs.getString("publisher"))
);
}
}
}
catch (ClassNotFoundException ex) {
JOptionPane.showMessageDialog(null, "Error "+ex.getMessage(), "Error", 0);
}
catch (SQLException ex) {
JOptionPane.showMessageDialog(null, "Error "+ex.getMessage(), "Error", 0);
}
return books;
}
private void bShowActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
DataBook db=new DataBook();
db.show(tData);
}

Your show method will return a ArrayList<Book>
So:
Have you processed this to display data from the list?
Does your database have data yet ?
"Sorry I can't add comment because my reputation < 50 "
Hope it helps you.
package test;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JTextArea;
public class App extends JFrame {
JPanel contentPane;
JButton action;
JList<Book> listBooks;
public App() {
this.prepareGUI();
}
public void prepareGUI() {
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setSize(200, 200);
contentPane = new JPanel();
this.setContentPane(contentPane);
action = new JButton("Action");
contentPane.add(action);
listBooks = new JList<Book>();
contentPane.add(listBooks);
action.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
// Data
Book[] books = new Book[5];
for (int i = 0; i < books.length; i++) {
books[i] = new Book("book " + i, "##");
}
listBooks.setListData(books);
}
});
}
public static void main(String[] args) {
App app = new App();
app.setVisible(true);
}
}
Hope this help you!!!

JTable in GroupLayout not populating from database [duplicate]

I have a text box that allows users to put in select type queries with the idea that when they click a button the result of the select statement will be shown in a JTable. I don't get any errors but also nothing is shown in the textPane when my button is pressed. The I have is below:
public class Console {
String myquery="";
private JFrame frame;
private JTextField textField;
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Console window = new Console();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
public Console() {
initialize();
}
private void initialize() {
frame = new JFrame();
frame.setBounds(100, 100, 950, 800);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JTextArea textAreaQuery = new JTextArea();
JTable table_ResQues = new JTable();
JButton btnNewButton = new JButton("Execute");
btnNewButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e)
{
String connectDB = "jdbc:ucanaccess:///Users/sebastianzeki/Documents/PhysJava/Physiology.mdb;";
System.out.println("Connection To Database Made");
Connection conn = null;
try {
conn = DriverManager.getConnection(connectDB);
} catch (SQLException e1) {
e1.printStackTrace();
}
Statement st = null;
try {
st = conn.createStatement();
} catch (SQLException e1) {
e1.printStackTrace();
}
myquery=textAreaQuery.getText();
String stg2 = "Select "+myquery;
ResultSet rs = null;
try {
rs = st.executeQuery(stg2);
table_ResQues.setModel(getDataFromDatabase);
} catch (SQLException e1) {
e1.printStackTrace();
}
}
}
and the code to build the model:
public TableModel getDataFromDatabase()
{
DefaultTableModel model = new DefaultTableModel(5, 5);
model.setValueAt("Hard", 0, 0);
model.setValueAt("Coded", 1, 1);
model.setValueAt("Data", 2, 2);
return model;
}
}

Ive removed the local variable
No, you removed the instance variable. Did you actually try this with your real code or just edit the question?
I have no idea how to provide a testable database for this question
I already suggested you create a method to simplify the logic. Somethng like:
public TableModel getDataFromDatabase()
{
DefaultTableModel model = new DefaultTableModel(5, 5);
model.setValueAt("Hard", 0, 0);
model.setValueAt("Coded", 1, 1);
model.setValueAt("Data", 2, 2);
return model;
}
Then in your ActionListener you simple do something like:
table_ResQues.setModel( getDataFromDataBase() );
Once you get this basic logic working you move the SQL logic into the getDataFromDatabase() method.
So now you create your SSCCE showing how you actually create the frame and add the components to the frame. The code should be compilable and executable.
Edit:
You have been told to display a table is a scrollpane. It is no extra effort to do this. Instead of using:
panel.add(table);
you use:
panel.add( new JScrollPane( table ) );
I would also suggest that to test your layout you can use code like the following to display a dummy table:
//JTable table_ResQues = new JTable();
JTable table_ResQues = new JTable(5,5);
Then when you use the setModel() method, only the data is affected, not the layout of the table.
I cant help but feel this is a fireTableDataChanged problem though.
I doubt it. That method is invoked by the TableModel when you change the data in the model. It is not used in this case because you are using the setModel(...) method. This will cause the table to repaint() itself automatically.

Here is my solution to your problem. I have retained your variable names though not all of them followed Java conventions. I think all you wanted was that the user would type SQL query in JTextArea and see the result of the query in a JTable.
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.table.AbstractTableModel;
public class Console {
private JFrame frame;
private JTextArea textAreaQuery;
private JTable table_ResQues;
private JButton btnNewButton;
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Console window = new Console();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
public Console() {
initialize();
}
private void initialize() {
frame = new JFrame("SQL Query");
frame.setBounds(100, 100, 950, 800);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
textAreaQuery = new JTextArea();
btnNewButton = new JButton("Execute");
table_ResQues = new JTable();
JPanel queryPanel=new JPanel(new BorderLayout()); // holds JTextArea and JButton
queryPanel.add(new JScrollPane(textAreaQuery), BorderLayout.CENTER);
JPanel btnPanel = new JPanel(new FlowLayout(FlowLayout.RIGHT));
btnPanel.add(btnNewButton);
queryPanel.add(btnPanel, BorderLayout.SOUTH);
JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT, queryPanel,
new JScrollPane(table_ResQues));
splitPane.setOneTouchExpandable(true);
splitPane.setDividerLocation(150);
frame.setContentPane(splitPane);
btnNewButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
/*try {
Class.forName("com.mysql.jdbc.Driver");
} catch (ClassNotFoundException e2) {
e2.printStackTrace();
}*/
String connectDB = "jdbc:ucanaccess:///Users/sebastianzeki/Documents/PhysJava/Physiology.mdb;";
Connection conn = null;
Statement st = null;
try {
conn = DriverManager.getConnection(connectDB);
//conn = DriverManager.getConnection("jdbc:mysql://localhost/cwcx", "root", "admin");// MySQL connection
st = conn.createStatement();
System.out.println("Connection To Database Made");
} catch (SQLException e1) {
e1.printStackTrace();
}
String myquery = textAreaQuery.getText();
if(myquery.endsWith(";")){
myquery=myquery.substring(0, myquery.length()-1);
}
ResultSet rs = null;
try {
rs = st.executeQuery(myquery);
// extract column information
ResultSetMetaData rsmd = rs.getMetaData();
int columnCount = rsmd.getColumnCount();
List<String> columnData = new ArrayList<String>(columnCount);
for (int i = 1; i <= columnCount; i++) {
columnData.add(rsmd.getColumnName(i));
}
// sql result data
List<List<Object>> rowData = new ArrayList<List<Object>>();
while (rs.next()) {
List<Object> row = new ArrayList<Object>(columnCount);
for (int i = 0; i < columnCount; i++) {
row.add(rs.getObject(i + 1));
}
rowData.add(row);
}
table_ResQues.setModel(new ListTableModel(rowData, columnData));
} catch (SQLException e1) {
JOptionPane.showMessageDialog(frame, e1.getMessage(), "SQL Exception", JOptionPane.ERROR_MESSAGE);
e1.printStackTrace();
}finally{
if(rs!=null){
try {
rs.close();
} catch (SQLException e1) {
e1.printStackTrace();
}
}
if(st!=null){
try {
st.close();
} catch (SQLException e1) {
e1.printStackTrace();
}
}
if(conn!=null){
try {
conn.close();
} catch (SQLException e1) {
e1.printStackTrace();
}
}
}
}
});
}
// this table model is created from two dimensional List rowData and single dimensional List columnData
private static class ListTableModel extends AbstractTableModel{
private static final long serialVersionUID = 1L;
private List<List<Object>> rowData;
private List<String> columnData;
public ListTableModel(List<List<Object>> rowData, List<String> columnData) {
this.rowData = rowData;
this.columnData = columnData;
}
#Override
public int getRowCount() {
return rowData.size();
}
#Override
public int getColumnCount() {
return columnData.size();
}
#Override
public Object getValueAt(int rowIndex, int columnIndex) {
return rowData.get(rowIndex).get(columnIndex);
}
#Override
public String getColumnName(int column) {
return columnData.get(column);
}
#Override
public Class<?> getColumnClass(int columnIndex) {
Object obj=rowData.get(0).get(columnIndex);
return obj.getClass();
}
}
}
On my system, I have tested it with MySQL database. But I have commented out that part. You may try this on your system without any modification. Please do tell me whether you wanted to achieve this solution or not.

Display ResultSet of a SQL query in a JTable (Java)

I'm working on a program with which I can search through a database and display the results.
I'm stuck at the displaying part at the moment. My SQL query already works and returns the results. I'm using a PreparedStatement to fill my ResultSet. However I don't know how I can return the data of the ResultSet to a JTable which I want to use to display the data. Can anyone explain to me in detail how to do this or if there is a better way instead of a JTable I'm not seeing?
I'm using the MVC model and the DAO pattern, but I'm still pretty new to programming.
So far from researching it I found the best solution to be to make a custom table class, but from there on I don't know how to progress.
My custom table class:
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.util.Vector;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
public class ResultSetTable {
public static TableModel resultSetToTableModel(ResultSet rs) {
try {
ResultSetMetaData metaData = rs.getMetaData();
int numberOfColumns = metaData.getColumnCount();
Vector columnNames = new Vector();
//Spaltennamen
for (int column = 0; column < numberOfColumns; column++) {
columnNames.addElement(metaData.getColumnLabel(column + 1));
}
//Alle Zeilen
Vector rows = new Vector();
while (rs.next()) {
Vector newRow = new Vector();
for (int i = 1; i <= numberOfColumns; i++) {
newRow.addElement(rs.getObject(i));
}
rows.addElement(newRow);
}
return new DefaultTableModel(rows, columnNames);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
}
And the relevant part of my View class:
import java.awt.FlowLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTable;
import javax.swing.JTextField;
import dbconnect.dao.impl.BTRDaoImpl;
public class View extends JFrame{
public View() {
JTable table = new JTable(new ResultSetTable(BTRDaoImpl.resultset);
this.setSize(600, 400);
setResizable(false);
}
My BTRDaoImpl class with the sql query and resultset:
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collection;
import mvc.View;
import dao.BTRbDao;
import business.BTRBean;
public class BTRDaoImpl extends AbstractDao implements BTRDao {
private Connection dbConnection = null;
private PreparedStatement preparedStatement = null;
public void sqlquery() {
try {
String btrname = View.searchbbtrname.getText();
String btrplz = View.searchbtrplz.getText();
btrname = btrname.trim().toUpperCase();
btrplz = btrplz.trim().toUpperCase();
if (btrplz.isEmpty()) {
String btrResult = "SELECT BBSTBBNR, BBSTNABE, BBSTPLZ FROM BP.TBBBST WHERE BBSTNABEG = ?";
dbConnection = AbstractDao.getConnection();
preparedStatement = dbConnection.prepareStatement(btrResult);
preparedStatement.setString(1, btrname);
} else {
String btrResult = "SELECT BBSTBBNR, BBSTNABE, BBSTPLZ FROM BP.TBBBST WHERE BBSTNABEG = ? AND BBSTPLZ = ?";
dbConnection = AbstractDao.getConnection();
preparedStatement = dbConnection.prepareStatement(btrResult);
preparedStatement.setString(1, btrname);
preparedStatement.setString(2, btrplz);
}
} catch (SQLException e1) {
System.out.println("An error with the SQL query occured: ");
e1.printStackTrace();
}
}
public Collection<BtrBean> getBTR() throws SQLException,
IOException {
sqlquery();
final Collection<BtrBean> result = new ArrayList<BtrBean>();
ResultSet resultset = null;
try {
resultset = preparedStatement.executeQuery();
// while loop to get data
while (resultset.next()) {
BtrBean btr = new BtrBean();
int btrid = resultset.getInt(1);
String btrplz = resultset.getString(3);
String btrname = resultset.getString(2);
btr.setBetriebnr(btrid);
btr.setBetriebplz(btrplz);
btr.setBetriebname(btrname);
result.add(btr);
// System.out.println("BTR-ID: " + btrid + " BTR PLZ: " + btrplz + " BTR: " + btrname);
}
} catch (SQLException e) {
e.printStackTrace();
System.out.println("An error processing the SQL occured: ");
e.printStackTrace();
} catch (NullPointerException npe) {
System.out.println("NullPointerException: ");
npe.printStackTrace();
} finally {
if (preparedStatement != null) preparedStatement.close();
closeConnection(resultset);
}
return result;
}
}
My BTRBean class:
public class BetriebBean {
private String betriebname;
private int betriebnr;
private String betriebplz;
public BetriebBean() {
}
public BetriebBean(String betriebname, int betriebnr, String betriebplz) {
super();
this.betriebname = betriebname;
this.betriebnr = betriebnr;
this.betriebplz = betriebplz;
}
public String getBetriebname() {
return betriebname;
}
public void setBetriebname(String betriebname) {
this.betriebname = betriebname;
}
public int getBetriebnr() {
return betriebnr;
}
public void setBetriebnr(int betriebnr) {
this.betriebnr = betriebnr;
}
public String getBetriebplz() {
return betriebplz;
}
public void setBetriebplz(String betriebplz) {
this.betriebplz = betriebplz;
}
}
//edit:
My whole View.class:
import java.awt.FlowLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTable;
import javax.swing.JTextField;
public class View extends JFrame{
private static final long serialVersionUID = 1L;
public static final String SEARCH = "SEARCH";
private JLabel searchbtrlabel = new JLabel("BTR name:");
public static JTextField searchbtrname = new JTextField(10);
private JLabel searchbtrlabel = new JLabel("PLZ:");
public static JTextField searchbtrplz = new JTextField(10);
private JButton searchbutton = new JButton();
public View() {
this.setTitle("BTR search TBBBST");
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setLayout(new FlowLayout());
this.add(searchbtrlabel);
this.add(searchbtrname);
this.add(searchbtrplzlabel);
this.add(searchbtrplz);
searchbutton.setText("Search");
searchbutton.setActionCommand(View.SEARCH);
this.add(searchbutton);
JTable table = new JTable();
this.add(table);
this.setSize(600, 400);
setResizable(false);
//this.pack();
}
public JTextField getSearchbtrname() {
return searchbetriebname;
}
public JTextField getSearchbbtrplz() {
return searchbetriebplz;
}
public JButton getSearchbutton() {
return searchbutton;
}
}
My Controller class:
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Observable;
import java.util.Observer;
import mvc.Model;
import dbconnect.dao.impl.BTRDaoImpl;
public class Controller implements Observer, ActionListener{
private Model model;
#SuppressWarnings("unused")
private View view;
public Controller(Model model, View view) {
this.model = model;
this.view = view;
model.addObserver(this);
view.getSearchbutton().addActionListener(this);
view.setVisible(true);
}
#Override
public void actionPerformed(ActionEvent e) {
switch (e.getActionCommand()) {
case View.SEARCH:
model.search();
view.table.setModel(ResultSetToTable.buildTableModel(BTRDaoImpl.resultset));
break;
default:
System.out.println("Error : " + e.getActionCommand());
break;
}
}
#Override
public void update(Observable o, Object arg) {
// TODO Auto-generated method stub
}
}

Firstly, include rs2xml.jar in your libraries. You can find it here
In whatever action to populate your MySQL query in your JTable use following general idea:
public void sqlquery() {
try {
String btrResult = "SELECT BBSTBBNR, BBSTNABE, BBSTPLZ FROM BP.TBBBST WHERE BBSTNABEG = ?";
preparedStatement = dbConnection.prepareStatement(btrResult);
dbConnection.setString(1, btrname);
ResultSet rs =dbConnection.executeQuery();
Ur_table_name.setModel(DbUtils.resultSetToTableModel(DbUtils.resultSetToel(rs)); //this line of code will show it in your JTable
}catch(Exception e){
}

What is your question? Try being more specific than "[...] but from there on I don't know how to progress." What do you want to do? Are the results from your query visible in the table?
Using the answer from Paul Vargas over here Most simple code to populate JTable from ResultSet, you could start with something like this (using Java 8):
import java.sql.*;
import java.util.Vector;
import javax.swing.*;
import javax.swing.table.*;
public class ResultSetToTable {
public static void main(final String[] arguments) {
SwingUtilities.invokeLater(() -> {
try {
new ResultSetToTable().createAndShowGui();
} catch (SQLException e) {
e.printStackTrace();
}
});
}
private void createAndShowGui() throws SQLException {
final JFrame frame = new JFrame("Stack Overflow");
frame.setBounds(100, 100, 800, 600);
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
final JPanel panel = new JPanel();
final TableModel tableModel = buildTableModel(getData("Audi"));
final JTable table = new JTable(tableModel);
panel.add(new JScrollPane(table));
frame.getContentPane().add(panel);
frame.setVisible(true);
}
private ResultSet getData(final String btrName) throws SQLException {
final String url = "jdbc:h2:/Freek/TBBBST";
final Connection connection = DriverManager.getConnection(url, "me", "123");
final String sql = "SELECT BBSTBBNR, BBSTNABE, BBSTPLZ " +
"FROM BP.TBBBST " +
"WHERE BBSTNABEG = ?";
final PreparedStatement preparedStatement = connection.prepareStatement(sql);
preparedStatement.setString(1, btrName);
return preparedStatement.executeQuery();
}
/**
* See https://stackoverflow.com/a/10625471/1694043
*/
public static TableModel buildTableModel(final ResultSet resultSet)
throws SQLException {
int columnCount = resultSet.getMetaData().getColumnCount();
// Column names.
Vector<String> columnNames = new Vector<>();
for (int columnIndex = 1; columnIndex <= columnCount; columnIndex++) {
columnNames.add(resultSet.getMetaData().getColumnName(columnIndex));
}
// Data of the table.
Vector<Vector<Object>> dataVector = new Vector<>();
while (resultSet.next()) {
Vector<Object> rowVector = new Vector<>();
for (int columnIndex = 1; columnIndex <= columnCount; columnIndex++) {
rowVector.add(resultSet.getObject(columnIndex));
}
dataVector.add(rowVector);
}
return new DefaultTableModel(dataVector, columnNames);
}
}
For older versions of Java, you should be able to use this version of the main method:
public static void main(final String[] arguments) {
SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
try {
new ResultSetToTable().createAndShowGui();
} catch (SQLException e) {
e.printStackTrace();
}
}
});
}
Edit: connecting controller and table
To make the table available outside the view, you need to convert the table variable in the View() constructor into a field (like you have done with searchbtrname) and create a getTable getter method for it (like you have done with getSearchbtrname). In the Controller.actionPerformed method you can now change view.table into view.getTable().

Load data to a table

private void update_table(){
try{
DefaultTableModel df=(DefaultTableModel)jTable1.getModel();
Conn c=new Conn();
Statement s=c.createConn().createStatement();
// df.getDataVector().removeAllElements();
String sql="Select * from leave_taken";
ResultSet rs=s.executeQuery(sql);
while(rs.next()){
Vector v=new Vector();
df.addRow(v);
jTable1.setModel(DbUtils.resultSetToTableModel(rs));
}
} catch (Exception e) {
e.printStackTrace();
}
This is what i wrote. i want to lad data to the table by this method. but it loads only the table headings. how can i load table data to the table? Is there some thing need to add to this code?

Your v variable happens to be empty vector when you do df.addRow(v). Seems like you don't need df in your code.
Full example working with data
package javaapplication2;
import javax.swing.*;
import javax.swing.table.*;
import java.awt.event.*;
import java.awt.*;
import java.sql.*;
import net.proteanit.sql.DbUtils;
public class JavaApplication2
{
public static void main(String[] args)
{
Runnable r = new Runnable()
{
#Override
public void run()
{
JFrame f = new JFrame();
JPanel p = new JPanel();
f.setContentPane(p);
f.setPreferredSize(new Dimension(600, 600));
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
final JTable t = new JTable();
p.add(new JScrollPane(t), BorderLayout.CENTER);
JButton b = new JButton("Run");
p.add(b, BorderLayout.WEST);
b.addActionListener(
new ActionListener()
{
#Override
public void actionPerformed(ActionEvent ae)
{
try
{
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
Connection c = DriverManager.getConnection("jdbc:sqlserver://localhost;integratedSecurity=true;databaseName=stackoverflow");
Statement s = c.createStatement();
ResultSet rs = s.executeQuery("SELECT * FROM leave_taken");
t.setModel(DbUtils.resultSetToTableModel(rs));
}
catch (SQLException es)
{
es.printStackTrace();
}
catch (ClassNotFoundException ecn)
{
ecn.printStackTrace();
}
}
});
f.pack();
f.setVisible(true);
}
};
EventQueue.invokeLater(r);
}
}
Result on application start.
Result after button "Run" pressed.

How to auto load into Jtable, when frame/Jtable opens

Trying to pass an SQL query to a Jtable as the Frame/Jtable_1 loads.
looking into the forums and on the net I seem to end at WindowOpened event or some abstract example, which i have commented out.
I am new to Java and thought it may be Jtable setFocus event or on onload event etc but now struggling as i pick up knowledge, although a button Actionperformed event works a treat.
Any help would be appreciated.
Eclipse IDE Luna 4.4.1/ SQLite / Windows8.1
enter code here
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JTabbedPane;
import javax.swing.JButton;
import javax.swing.JLabel;
import java.sql.*;
import javax.swing.*;
import net.proteanit.sql.DbUtils;
import java.awt.event.ActionListener;
public class update extends JFrame {
private JPanel contentPane;
//private String x = Hardware.rowid;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
update frame = new update();
frame.setVisible(true);
frame.addWindowListener(new WindowAdapter(){
public void windowOpened(WindowEvent e){
System.out.println("hello");
//Connection connection=null;
//connection=sqliteConnection.dbConnector(); //set new connection to sql
//String query="select id, Firstname, Surname, username, admin from users where id = "+ Hardware.rowid ; //set sql query statement to variable query
//PreparedStatement pst;
//try {
//pst=connection.prepareStatement(query);
// ResultSet rs=pst.executeQuery(); //pass to rs resultset and execute
//table_1.setModel(DbUtils.resultSetToTableModel(rs)); //pass data to table
//} catch (SQLException e1) {
// TODO Auto-generated catch block
// e1.printStackTrace();
//}
}
});
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
Connection connection=null;
// WindowListener wl = new WindowListener(){
// public void windowOpened(WindowEvent e)
// {
// try
// {
// System.out.println (Hardware.rowid);
// }
// catch (FileNotFoundException ex) {
// System.out.println ("didnt work");
// }
// }
// public void windowClosing(WindowEvent e) {}
// public void windowClosed(WindowEvent e) {}
// public void windowIconified(WindowEvent e) {}
// public void windowDeiconified(WindowEvent e) {}
// public void windowActivated(WindowEvent e) {}
// public void windowDeactivated(WindowEvent e) {}
//};
//super.getFrame().addWindowListener(wl);
//}
private JTable table;
//private static JTable table_1;
private JTable table_1;
/**
* Create the frame.
*/
public update() {
connection=sqliteConnection.dbConnector(); //set new connection to sql
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JButton btn_update = new JButton("Update Database");
btn_update.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
try {
String query="select id, Firstname, Surname, username, admin from users where id = "+ Hardware.rowid ; //set sql query statement to variable query
PreparedStatement pst=connection.prepareStatement(query); //passs data to pst
ResultSet rs=pst.executeQuery(); //pass to rs resultset and execute
table_1.setModel(DbUtils.resultSetToTableModel(rs)); //pass data to table
System.out.println (Hardware.rowid);
} catch (Exception e) {
e.printStackTrace();
}
}
});
btn_update.setBounds(270, 219, 154, 31);
contentPane.add(btn_update);
JLabel lbl_update = new JLabel("Selection HISTORY");
lbl_update.setBounds(142, 11, 160, 14);
contentPane.add(lbl_update);
table_1 = new JTable();
table_1.setBounds(20, 36, 404, 175);
contentPane.add(table_1);
JScrollPane scrollPane = new JScrollPane();
scrollPane.setBounds(246, 102, 2, 2);
contentPane.add(scrollPane);
}
}
Thanks in advance.