JTable之单元格显示Tip

gdvxcv

import java.awt.Point; import java.awt.event.MouseEvent; import java.awt.event.MouseMotionListener; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.table.AbstractTableModel; import javax.swing.table.TableModel; public class TableTip { private JFrame jFrame; private JTable jTable; private JScrollPane jScrollPane; private int row; private int column; /** * @param args */ public static void main(String[] args) { TableTip tableTip = new TableTip(); tableTip.show(); } private void show() { jFrame = new JFrame(); jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); jFrame.setSize(300, 128); final Object jtText[][] = { { 1, 2, 3, 4 }, { 5, 6, 7, 8 }, { 9, 10, 11, 12 }, { 13, 14, 15, 16 }, { 17, 18, 19, 20 } }; final String jtHead[] = { "Column1", "Column2", "Column3", "Column4" }; TableModel dataModel = new AbstractTableModel() { private static final long serialVersionUID = 0L; public int getColumnCount() { return jtHead.length; } public int getRowCount() { return jtText.length; } public Object getValueAt(int rowIndex, int columnIndex) { return jtText[rowIndex][columnIndex]; } public String getColumnName(int column) { return jtHead[column]; } public boolean isCellEditable(int row, int col) { return false; } public void setValueAt(Object aValue, int row, int column) { jtText[row][column] = aValue; } }; jTable = new JTable(dataModel); jTable.setCellSelectionEnabled(false); // 设置不能重新调整列宽 jTable.getTableHeader().setResizingAllowed(false); // 设置不能重新排序各列 jTable.getTableHeader().setReorderingAllowed(false); // 监听鼠标移动，修改TIP jTable.addMouseMotionListener(new MouseMotionListener() { @Override public void mouseDragged(MouseEvent e) { } public void mouseMoved(MouseEvent e) { Point point = e.getPoint(); int x = jTable.rowAtPoint(point); int y = jTable.columnAtPoint(point); if (x != row || y != column) { row = x; column = y; } Object tip = jTable.getValueAt(row, column); if (tip != null) { jTable.setToolTipText("Row:" (row 1) " Column:" (column 1) ":" tip.toString()); } } }); jScrollPane = new JScrollPane(jTable); jScrollPane.setBounds(10, 40, 280, 90); jFrame.add(jScrollPane); jFrame.setVisible(true); } }