我在运行时在我的表模型中实现了“addTableModelListener”，但我想再创建一个控件来删除它。我已经搜索了谷歌，但我没有找到任何合适的逻辑来实现删除表模型侦听器。
请帮我实现该removeTableModelListener方法。
import java.awt.Component;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.ResultSet;
import java.sql.Statement;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ScrollPaneConstants;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableModel;
public class CheckList extends JPanel {
private static final long serialVersionUID = 1L;
/**
* Create the panel.
*/
static JTable table;
public int row;
public int column;
static MyTableModel model;
static int t;
public CheckList() {
try {
model = new MyTableModel();
table = new JTable(model);
table.setPreferredScrollableViewportSize(new Dimension(100, 70));
table.setFillsViewportHeight(true);
table.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
// Create the scroll pane and add the table to it.
JScrollPane scrollPane = new JScrollPane(table);
scrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
scrollPane.setBounds(10, 132, 998, 522);
setLayout(null);
add(scrollPane);
JButton btnNewButton = new JButton("New button");
btnNewButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (model.getRowCount() != 0) {
model.getDataVector().removeAllElements();
}
model.addrows();
}
});
btnNewButton.setBounds(868, 33, 89, 23);
add(btnNewButton);
final JComboBox comboBox = new JComboBox();
comboBox.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
switch (comboBox.getSelectedIndex()) {
case 0: {
model.removeTableModelListener(table.getModel());
}
case 1: {
model.addTableModelListener(new TableModelListener() {
public void tableChanged(TableModelEvent e) {
try {// TODO Auto-generated method stub
row = e.getFirstRow();
column = e.getColumn();
TableModel mod = (TableModel) e.getSource();
String columnName = mod.getColumnName(column);
Object data = mod.getValueAt(row, column);
System.out.println(columnName + " "
+ data + " row is " + row);
System.out.println("value at"
+ model.getValueAt(row, 4));
Boolean status = (Boolean) data;
String check;
// int value = (Integer) getValueAt(row, 4);
// System.out.println(value);
if (status == true) {
check = "Recieved";
} else {
check = "not Recieved";
}
System.out.println(check);
// int row1 = row + 1;
model.st.executeUpdate("update temp1 set ["
+ columnName + "]='" + check
+ "' where [Packet ID]="
+ model.getValueAt(row, 4) + "");
} catch (Exception t) {
System.out.println(t);
}
}
});
break;
}
}
}
});
comboBox.setModel(new DefaultComboBoxModel(new String[]{"view",
"edit"}));
comboBox.setBounds(158, 48, 81, 20);
add(comboBox);
JLabel lblNewLabel = new JLabel("Mode");
lblNewLabel.setBounds(102, 51, 46, 14);
add(lblNewLabel);
} catch (Exception e) {
System.out.println(e);
}
}
public class MyTableModel extends DefaultTableModel implements
TableCellRenderer, TableModelListener {
/**
*
*/
public void add() {
addRow(new Object[]{"", "", " ", " ", "", " ", new Boolean(status)});
}
public void addrows() {
try {
st = login.con.createStatement();
ResultSet re = st.executeQuery("select * FROM temp1 where operator="
+ managment.log_id + "");
while (re.next()) {
String n1 = re.getString("customer ID");
String n2 = re.getString("customer name");
String n3 = re.getString("packet id");
String n4 = re.getString("packet type");
String n5 = re.getString("reciever id");
String n6 = re.getString("reciever name");
String n7 = re.getString("reciever status");
if (n7.equals("Recieved")) {
status = true;
} else {
status = false;
}
addRow(new Object[]{"" + n1 + "", " " + n2 + "",
" " + n5 + "", " " + n6 + "", " " + n3 + "",
" " + n4 + "", new Boolean(status)});
}
} catch (Exception e) {
// TODO Auto-generated catch block
System.out.println(e);
}
}
private static final long serialVersionUID = 1L;
/*
*
*/
public Statement st;
boolean status;
public int row;
public int column;
/**
*
*/
public MyTableModel() {
// TODO Auto-generated constructor stub
addColumn("sender ID");
addColumn("sender Name");
addColumn("Recieving ID");
addColumn("Reciever Name");
addColumn("Packet ID");
addColumn("Packet Category");
addColumn("reciever status");
}
@Override
public int getColumnCount() {
// TODO Auto-generated method stub
return super.getColumnCount();
}
@Override
public int getRowCount() {
// TODO Auto-generated method stub
return super.getRowCount();
}
@Override
public String getColumnName(int column) {
// TODO Auto-generated method stub
return super.getColumnName(column);
}
@Override
public Object getValueAt(int row, int column) {
// TODO Auto-generated method stub
return super.getValueAt(row, column);
}
@Override
public boolean isCellEditable(int row, int column) {
return super.isCellEditable(row, column);
}
public Class<?> getColumnClass(int c) {
return getValueAt(0, c).getClass();
}
@Override
public void setValueAt(Object aValue, int row, int column) {
// TODO Auto-generated method stub
super.setValueAt(aValue, row, column);
// System.out.println("new value");
// printDebugData();
}
@Override
public Component getTableCellRendererComponent(JTable arg0,
Object arg1, boolean arg2, boolean arg3, int arg4, int arg5) {
// TODO Auto-generated method stub
return null;
}
@Override
public void tableChanged(TableModelEvent arg0) {
// TODO Auto-generated method stub
}
}
// @Override
// public void addTableModelListener(TableModelListener l) {
// // TODO Auto-generated method stub
//
// super.addTableModelListener(new TableModelListener() {
//
// @Override
// public void tableChanged(TableModelEvent e) {
//
// try {// TODO Auto-generated method stub
// row = e.getFirstRow();
// column = e.getColumn();
// TableModel mod = (TableModel) e.getSource();
// String columnName = mod.getColumnName(column);
// Object data = mod.getValueAt(row, column);
// System.out.println(columnName + " " + data
// + " row is " + row);
// System.out.println("value at" + getValueAt(row, 4));
// Boolean status = (Boolean) data;
// String check;
// // int value = (Integer) getValueAt(row, 4);
// // System.out.println(value);
// if (status == true) {
// check = "Recieved";
//
// } else {
// check = "not Recieved";
// }
// System.out.println(check);
// // int row1 = row + 1;
// st.executeUpdate("update temp1 set [" + columnName
// + "]='" + check + "' where [Packet ID]="
// + getValueAt(row, 4) + "");
//
// } catch (Exception t) {
// System.out.println(t);
// }
//
// }
// });
// }
/*
* private void printDebugData() { int numRows = getRowCount(); int numCols
* = getColumnCount();
*
* for (int i = 0; i < numRows; i++) { System.out.print(" row " + i + ":");
* for (int j = 0; j < numCols; j++) { System.out.print(" " + getValueAt(i,
* j)); } System.out.println(" ");
*
* }
*
* System.out.println("--------------------------"); }
*/
}