Java JTable3

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Java JTable3_第1张图片


代码 :

/**
 * 
 */
package com.han;

import java.awt.Color;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.Vector;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.ListSelectionModel;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.JTableHeader;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumnModel;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;

/**
 * @author HAN
 * 
 */
public class JTable3 extends JFrame {

	/**
	 * coming from the JFrame
	 */
	private static final long serialVersionUID = -8022000459941822250L;

	/**
	 * 
	 */
	public JTable3() {
		// TODO Auto-generated constructor stub
		super();
		setTitle("定义表格");
		setBounds(100, 100, 500, 375);
		setLayout(new GridLayout(3,1));
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		JScrollPane scrollPane = new JScrollPane();
		getContentPane().add(scrollPane);
		String[] columnNames = { "A", "B", "C", "D", "E", "F" };
		Vector<String> columnNameV = new Vector<String>();
		for (int column = 0; column < columnNames.length; column++) {
			columnNameV.add(columnNames[column]);
		}
		Vector<Vector<String>> tableValueV = new Vector<Vector<String>>();
		for (int row = 1; row < 21; row++) {
			Vector<String> rowV = new Vector<String>();
			for (int column = 0; column < columnNames.length; column++) {
				rowV.add(columnNames[column] + row);
			}
			tableValueV.add(rowV);
		}
		final DefaultTableModel tableModel = new DefaultTableModel(tableValueV,
				columnNameV);
		final JTable table = new MTable(tableModel);
		table.setRowSorter(new TableRowSorter<DefaultTableModel>(tableModel));
		scrollPane.setViewportView(table);
		table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
		table.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
		TableColumnModel tableColumnModel = table.getColumnModel();
		ListSelectionModel listSelectionModel = tableColumnModel
				.getSelectionModel();
		System.out.println(listSelectionModel.getSelectionMode());
		System.out.println(table.getColumnSelectionAllowed());
		System.out.println(table.getRowSelectionAllowed());
		table.setColumnSelectionAllowed(true);
		table.setRowSelectionAllowed(true);
		table.setBackground(Color.YELLOW);
		table.setForeground(Color.RED);
		table.setRowHeight(30); // in pixels

		/* manipulate the table */
		table.setRowSelectionInterval(1, 3);
		table.setColumnSelectionInterval(1, 1);
		table.addRowSelectionInterval(4, 5);// must consider the selection mode
											// that has been set before
		JPanel buttonPanel = new JPanel();
		getContentPane().add(buttonPanel);
		JButton selectAllButton = new JButton("全部选择");
		selectAllButton.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				table.selectAll();
			}
		});
		buttonPanel.add(selectAllButton);
		JButton clearSelectionButton = new JButton("取消选择");
		clearSelectionButton.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				table.clearSelection();
			}
		});
		buttonPanel.add(clearSelectionButton);
		System.out.println("表格共有" + table.getRowCount() + "行"
				+ table.getColumnCount() + "列");
		System.out.println("共有" + table.getSelectedRowCount() + "行被选中");
		System.out.println("第1行的选择状态是: " + table.isRowSelected(0));
		System.out.println("第3行的选择状态是: " + table.isRowSelected(2));
		System.out.println("被选中的第一行索引是: " + table.getSelectedRow());
		int[] selectedRows = table.getSelectedRows();
		System.out.print("所有被选中的行的索引是: ");
		for (int row = 0; row < selectedRows.length; row++) {
			System.out.print(selectedRows[row] + "\t");
		}
		System.out.println();
		System.out.println("移动前第2列的名称是: " + table.getColumnName(1));
		System.out.println("移动前第2行第2列的值是: " + table.getValueAt(1, 1));
		table.moveColumn(1, 3);
		System.out.println("移动后第2列的名称是: " + table.getColumnName(1));
		System.out.println("移动后第2行第2列的值是: " + table.getValueAt(1, 1));
		
		/* 维护表格模型 */
		JPanel panelModel = new JPanel();
		panelModel.add(new JLabel("A: "));
		final JTextField aTextField = new JTextField("A4", 10);
		panelModel.add(aTextField);
		panelModel.add(new JLabel("B: "));
		final JTextField bTextField = new JTextField("B4", 10);
		panelModel.add(bTextField);
		JButton addButton = new JButton("添加");
		panelModel.add(addButton);
		JButton updButton = new JButton("修改");
		panelModel.add(updButton);
		JButton delButton = new JButton("删除");
		panelModel.add(delButton);
		getContentPane().add(panelModel);
		table.addMouseListener(new MouseAdapter(){
			public void mouseClicked(MouseEvent e){
				int selectedRow=table.getSelectedRow();
				selectedRow=table.convertRowIndexToModel(selectedRow);// because there exists sorting
				Object oa=tableModel.getValueAt(selectedRow, 0);
				Object ob=tableModel.getValueAt(selectedRow, 1);
				aTextField.setText(oa.toString());
				bTextField.setText(ob.toString());
			}
		});
		addButton.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				String[] rowValues = {aTextField.getText(), bTextField.getText()};
				tableModel.addRow(rowValues);
			}
		});
		updButton.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				int selectedRow=table.getSelectedRow();
				selectedRow=table.convertRowIndexToModel(selectedRow);
				if(selectedRow != -1){
					tableModel.setValueAt(aTextField.getText(), selectedRow, 0);
					tableModel.setValueAt(bTextField.getText(), selectedRow, 1);
				}
			}
		});
		delButton.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				int selectedRow=table.getSelectedRow();
				selectedRow=table.convertRowIndexToModel(selectedRow);
				if(selectedRow != -1){
					tableModel.removeRow(selectedRow);
				}
			}
		});
	}

	private class MTable extends JTable {

		/**
		 * 
		 */
		private static final long serialVersionUID = -3934300578737290495L;

		public MTable(TableModel tableModel) {
			// TODO Auto-generated constructor stub
			super(tableModel);
		}

		@Override
		public JTableHeader getTableHeader() {
			JTableHeader tableHeader = super.getTableHeader();
			tableHeader.setReorderingAllowed(false);
			DefaultTableCellRenderer tableCellRenderer = (DefaultTableCellRenderer) tableHeader
					.getDefaultRenderer();
			tableCellRenderer
					.setHorizontalAlignment(DefaultTableCellRenderer.CENTER);
			return tableHeader;
		}

		@Override
		public TableCellRenderer getDefaultRenderer(Class<?> columnClass) {
			DefaultTableCellRenderer cr = (DefaultTableCellRenderer) super
					.getDefaultRenderer(columnClass);
			cr.setHorizontalAlignment(DefaultTableCellRenderer.CENTER);
			return cr;
		}

		@Override
		public boolean isCellEditable(int row, int column) {
			return false;
		}
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		JTable3 frame = new JTable3();
		frame.setVisible(true);
	}

}


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