我正在尝试显示表格,在 for 循环中动态填充行数据并显示,单击按钮即可。这是我的代码,有人可以帮助我吗?
public class GetQuotes {
private JTextField wtField = new JTextField(10);
private JTextField htField = new JTextField(10);
private JTextField lnField = new JTextField(10);
private JTextField wiField = new JTextField(10);
final JPanel gui = new JPanel(new BorderLayout(2,3));
JPanel labelFields = new JPanel(new BorderLayout(2,2));
JTable table;
JPanel guiCenter = new JPanel(new BorderLayout(2,3));
//default constructor
public GetQuotes(){
labelFields.setBorder(new TitledBorder("Enter Inputs"));
JPanel labels = new JPanel(new GridLayout(0,1,1,1));
//labels.setBorder(new TitledBorder("GridLayout"));
JPanel fields = new JPanel(new GridLayout(0,1,1,1));
labels.add(new JLabel("Weight"));
labels.add(new JLabel("Length"));
labels.add(new JLabel("Width"));
labels.add(new JLabel("Height"));
fields.add(wtField);
fields.add(lnField);
fields.add(wiField);
fields.add(htField);
labelFields.add(labels,BorderLayout.CENTER);
labelFields.add(fields,BorderLayout.EAST);
JPanel buttonConstrsint = new JPanel(new FlowLayout(FlowLayout.CENTER));
JButton getQuotesButton = new JButton("Get Quotes..");
getQuotesButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
Quote[] data = getData();
table = new JTable(generateTableModel(data));
table.setModel(generateTableModel(data));
JScrollPane pane = new JScrollPane(table);
guiCenter.add(pane, BorderLayout.SOUTH);
gui.add(guiCenter,BorderLayout.CENTER);
}
}
});
buttonConstrsint.add(getQuotesButton);
guiCenter.add(buttonConstrsint,BorderLayout.NORTH);
gui.add(labelFields,BorderLayout.NORTH);
gui.add(guiCenter,BorderLayout.CENTER);
JOptionPane.showMessageDialog(null, gui);
}
private Quote[] getData(){
//this function returns the needed data
}
//test the class
public static void main(String[]args) throws Exception{
SwingUtilities.invokeLater(new Runnable(){
public void run(){
new GetQuotes();
}
});
}
public static TableModel generateTableModel(Quote[] dataa) {
String[][] data = new String[100][2] ;
String[] colNames = {"col1","col2"};
//here how to add another column data dataa[j].getPrice
for(int i=0; i<colNames.length; i++){
for(int j=0; j<dataa.length; j++){
data[j][i] = dataa[j].getServiceName();
}
}
return new DefaultTableModel(data, colNames);
}
}
1) 我需要帮助在 generateTableModel 函数的 for 循环中填充 rowData。目前我可以填写单列数据,如何构建第二列数据。
2)一旦表在这里构造并返回到上面的actionperformed函数,我将表添加到jscrollpanel和guicenterpanel。但不知何故,这并没有显示表格。
有人可以帮帮我吗?