[code]
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.sql.ResultSet;
import java.sql.SQLException;import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel; class MyTableDemo extends JFrame{ public MyTableDemo() {
//声明自己的表格,并添加到JTable中
MyTableModel myModel = new MyTableModel();
JTable table = new JTable(myModel);
table.setPreferredScrollableViewportSize(new Dimension(500, 70)); //将表格添加到可滚动的面板
JScrollPane scrollPane = new JScrollPane(table); //将滚动面板添加到窗体
this.add(scrollPane, BorderLayout.CENTER);
this.setVisible(true);
}
public static void main(String[] args) {
JFrame.setDefaultLookAndFeelDecorated(true);
MyTableDemo frame = new MyTableDemo();
}
class MyTableModel extends AbstractTableModel {
private static final long serialVersionUID = 1L;
final String[] columnNames = {"课程编号",
"课程名称",
"课程代码",
"是否已选"};
Object[][] data{{"张三", "男",
"大本", new Integer(25), new Boolean(false)},
{"李四", "男",
"大本", new Integer(33), new Boolean(true)},
{"王五", "男",
"高中", new Integer(20), new Boolean(false)},
{"赵倩", "女",
"大专", new Integer(26), new Boolean(true)},
{"周大", "男",
"大本", new Integer(24), new Boolean(false)}
};
}
}
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 c) {
return getValueAt(0, c).getClass();
} public boolean isCellEditable(int row, int col) {
if (col < 2) {
return false;
} else {
return true;
}
} public void setValueAt(Object value, int row, int col) {
System.out.println("修改数据位置: " + row + "," + col
+ " 新数据为: " + value); data[row][col] = value;
fireTableCellUpdated(row, col); System.out.println("表格新数据:");
printDebugData(); } private void printDebugData() {
int numRows = getRowCount();
int numCols = getColumnCount(); for (int i=0; i < numRows; i++) {
System.out.print(" 行 " + i + ":");
for (int j=0; j < numCols; j++) {
System.out.print(" " + data[i][j]);
}
System.out.println();
}
System.out.println("--------------------------");
}
}
}
[/code]
找了好久了,才知道继承这个类AbstractTableModel 里面才能让表格有打勾的选项,但这个类方法似乎很复杂 很难用
分开两个类,不知道怎么连接数据库,自己琢磨了几天没搞出来,就是连不上数据库,请各位大侠不吝赐教!
或者能提供个别的能在表格打勾的办法!
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.sql.ResultSet;
import java.sql.SQLException;import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel; class MyTableDemo extends JFrame{ public MyTableDemo() {
//声明自己的表格,并添加到JTable中
MyTableModel myModel = new MyTableModel();
JTable table = new JTable(myModel);
table.setPreferredScrollableViewportSize(new Dimension(500, 70)); //将表格添加到可滚动的面板
JScrollPane scrollPane = new JScrollPane(table); //将滚动面板添加到窗体
this.add(scrollPane, BorderLayout.CENTER);
this.setVisible(true);
}
public static void main(String[] args) {
JFrame.setDefaultLookAndFeelDecorated(true);
MyTableDemo frame = new MyTableDemo();
}
class MyTableModel extends AbstractTableModel {
private static final long serialVersionUID = 1L;
final String[] columnNames = {"课程编号",
"课程名称",
"课程代码",
"是否已选"};
Object[][] data{{"张三", "男",
"大本", new Integer(25), new Boolean(false)},
{"李四", "男",
"大本", new Integer(33), new Boolean(true)},
{"王五", "男",
"高中", new Integer(20), new Boolean(false)},
{"赵倩", "女",
"大专", new Integer(26), new Boolean(true)},
{"周大", "男",
"大本", new Integer(24), new Boolean(false)}
};
}
}
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 c) {
return getValueAt(0, c).getClass();
} public boolean isCellEditable(int row, int col) {
if (col < 2) {
return false;
} else {
return true;
}
} public void setValueAt(Object value, int row, int col) {
System.out.println("修改数据位置: " + row + "," + col
+ " 新数据为: " + value); data[row][col] = value;
fireTableCellUpdated(row, col); System.out.println("表格新数据:");
printDebugData(); } private void printDebugData() {
int numRows = getRowCount();
int numCols = getColumnCount(); for (int i=0; i < numRows; i++) {
System.out.print(" 行 " + i + ":");
for (int j=0; j < numCols; j++) {
System.out.print(" " + data[i][j]);
}
System.out.println();
}
System.out.println("--------------------------");
}
}
}
[/code]
找了好久了,才知道继承这个类AbstractTableModel 里面才能让表格有打勾的选项,但这个类方法似乎很复杂 很难用
分开两个类,不知道怎么连接数据库,自己琢磨了几天没搞出来,就是连不上数据库,请各位大侠不吝赐教!
或者能提供个别的能在表格打勾的办法!
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.sql.ResultSet;
import java.sql.SQLException;import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel; class MyTableDemo extends JPanel{ public MyTableDemo() {
//声明自己的表格,并添加到JTable中
MyTableModel myModel = new MyTableModel();
JTable table = new JTable(myModel);
table.setPreferredScrollableViewportSize(new Dimension(500, 70)); //将表格添加到可滚动的面板
JScrollPane scrollPane = new JScrollPane(table); //将滚动面板添加到窗体
this.add(scrollPane, BorderLayout.CENTER);
this.setVisible(true);
}
public static void main(String[] args) {
JFrame.setDefaultLookAndFeelDecorated(true);
MyTableDemo frame = new MyTableDemo();
}
class MyTableModel extends AbstractTableModel {
private static final long serialVersionUID = 1L;
final String[] columnNames = {"课程编号",
"课程名称",
"课程代码",
"是否已选"};
final Object[][] data = {
{"张三", "男",
"大本",new Boolean(false)},
{"李四", "男",
"大本", new Boolean(true)},
{"王五", "男",
"高中", new Boolean(false)},
{"赵倩", "女",
"大专", new Boolean(true)},
{"周大", "男",
"大本",new Boolean(false)}
};
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 c) {
return getValueAt(0, c).getClass();
} public boolean isCellEditable(int row, int col) {
if (col < 2) {
return false;
} else {
return true;
}
} public void setValueAt(Object value, int row, int col) {
System.out.println("修改数据位置: " + row + "," + col
+ " 新数据为: " + value); data[row][col] = value;
fireTableCellUpdated(row, col); System.out.println("表格新数据:");
printDebugData(); } private void printDebugData() {
int numRows = getRowCount();
int numCols = getColumnCount(); for (int i=0; i < numRows; i++) {
System.out.print(" 行 " + i + ":");
for (int j=0; j < numCols; j++) {
System.out.print(" " + data[i][j]);
}
System.out.println();
}
System.out.println("--------------------------");
}
}
}
[/code]
这样的一个例子,帮我插入一段数据库连接,我连了好久了,都没连下,把数据从数据库里的数据显示到JTABLE里
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.sql.ResultSet;
import java.sql.SQLException;import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel; class MyTableDemo extends JPanel{ public MyTableDemo() {
//声明自己的表格,并添加到JTable中
MyTableModel myModel = new MyTableModel();
JTable table = new JTable(myModel);
table.setPreferredScrollableViewportSize(new Dimension(500, 70)); //将表格添加到可滚动的面板
JScrollPane scrollPane = new JScrollPane(table); //将滚动面板添加到窗体
this.add(scrollPane, BorderLayout.CENTER);
this.setVisible(true);
}
public static void main(String[] args) {
JFrame.setDefaultLookAndFeelDecorated(true);
MyTableDemo frame = new MyTableDemo();
}
class MyTableModel extends AbstractTableModel {
private static final long serialVersionUID = 1L;
final String[] columnNames = {"课程编号",
"课程名称",
"课程代码",
"是否已选"};
final Object[][] data = {
{"张三", "男",
"大本",new Boolean(false)},
{"李四", "男",
"大本", new Boolean(true)},
{"王五", "男",
"高中", new Boolean(false)},
{"赵倩", "女",
"大专", new Boolean(true)},
{"周大", "男",
"大本",new Boolean(false)}
};
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 c) {
return getValueAt(0, c).getClass();
} public boolean isCellEditable(int row, int col) {
if (col < 2) {
return false;
} else {
return true;
}
} public void setValueAt(Object value, int row, int col) {
System.out.println("修改数据位置: " + row + "," + col
+ " 新数据为: " + value); data[row][col] = value;
fireTableCellUpdated(row, col); System.out.println("表格新数据:");
printDebugData(); } private void printDebugData() {
int numRows = getRowCount();
int numCols = getColumnCount(); for (int i=0; i < numRows; i++) {
System.out.print(" 行 " + i + ":");
for (int j=0; j < numCols; j++) {
System.out.print(" " + data[i][j]);
}
System.out.println();
}
System.out.println("--------------------------");
}
}
}