Swing JTable 表格排序jdk1.5于1.6

import java.awt.Component;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import java.util.Vector;

import javax.swing.Icon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.WindowConstants;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.JTableHeader;

public class TableSort {
 final static Icon upIcon = new UpDownArrow(0);
 final static Icon downIcon = new UpDownArrow(1);

 private boolean ascending = false;
 private TableModel model;

 private int sortColumn = -1;

 public static void main(String[] args) {
  new TableSort().init();
 }

 private void init() {
  List<Object[]> list = new Vector<Object[]>();
  Object[] obj = null;
  for (int i = 0; i < 50; i++) {
   obj = new Object[3];
   String s = "";
   if (i % 2 == 0) {
    s = "aw";
   } else {
    s = "3e";
   }
   obj[0] = "name" + s;
   obj[1] = i + (123 / (i + 1)) + 2;
   obj[2] = i + 17.0169 / (i + 1) * 1.1347;
   list.add(obj);
  }
  String[] names = { "姓名", "学号", "成绩" };
  model = new TableModel(names, 0);
  model.addData(list);
  final JTable table = new JTable(model);
  // TableRowSorter<TableModel> sort = new
  // TableRowSorter<TableModel>(model);
  // CompareTo to = new CompareTo();
  // for(int i=0;i<names.length;i++)
  // {
  // sort.setComparator(i,to);
  // }
  // SortManager sortManager = new SortManager(table);
  // table.setRowSorter(sort);
  DefaultTableCellRenderer defaultHeaderRenderer = new SortHeaderRenderer();
  defaultHeaderRenderer.setHorizontalAlignment(0);
  defaultHeaderRenderer.setHorizontalTextPosition(JLabel.LEFT);
  JTableHeader jtableheader = table.getTableHeader();
  jtableheader.setDefaultRenderer(defaultHeaderRenderer);
  addListener(table);
  JScrollPane js = new JScrollPane(table);
  JFrame frame = new JFrame();
  frame.getContentPane().add(js);
  frame.setSize(400, 300);
  frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
  frame.pack();
  frame.setVisible(true);
 }

 public void addListener(final JTable table) {
  table.getTableHeader().addMouseListener(new MouseAdapter() {
   public void mouseClicked(MouseEvent mouseevent) {
    int i = table.columnAtPoint(mouseevent.getPoint());
    int j = table.convertColumnIndexToModel(i);
    // 转换出用户想排序的列和底层数据的列，然后判断
    if (j == sortColumn) {
     ascending = !ascending;
    } else {
     ascending = true;
     sortColumn = j;
    }
    model.sort(ascending, sortColumn);
    table.revalidate();
    table.repaint();

   }

  });
 }

 // jdk1.5表头渲染器
 class SortHeaderRenderer extends DefaultTableCellRenderer {

  public SortHeaderRenderer() {

  }

  public Component getTableCellRendererComponent(JTable jtable,
    Object obj, boolean flag, boolean flag1, int i, int j) {
   if (jtable != null) {
    JTableHeader jtableheader = jtable.getTableHeader();
    if (jtableheader != null) {
     setForeground(jtableheader.getForeground());
     setBackground(jtableheader.getBackground());
     setFont(jtableheader.getFont());
    }
   }
   setText(obj != null ? obj.toString() : "");
   int col = jtable.convertColumnIndexToModel(j);
   if (col == sortColumn) {

    setIcon(ascending ? TableSort.upIcon : TableSort.downIcon);
   } else {
    setIcon(null);
   }
   setBorder(UIManager.getBorder("TableHeader.cellBorder"));
   return this;
  }
 }
}

class TableModel extends DefaultTableModel {
 List<Object[]> dataLst = new ArrayList<Object[]>();
 private Compare compare = new Compare();

 public TableModel(String[] tableHeaders, int count) {
  super(tableHeaders, count);
 }

 @Override
 public Object getValueAt(int row, int col) {
  if (dataLst.size() > 0) {
   Object[] obj = dataLst.get(row);
   return obj[col];
  }
  return "";
 }

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

 @Override
 public int getRowCount() {
  if (null != dataLst) {
   return dataLst.size();
  }
  return 0;
 }

 public void sort(boolean desc, int col) {
  compare.setDes(desc);
  compare.setCol(col);
  java.util.Collections.sort(this.dataLst, compare);
 }

 public void addData(List<Object[]> objLst) {
  dataLst.addAll(objLst);
  this.fireTableDataChanged();
 }
}

// jdk1.5排序比较器
class Compare implements Comparator {
 private boolean des;

 private int col;

 public Compare() {
  this(true, 0);
 }

 public Compare(boolean des, int col) {
  this.des = des;
  this.col = col;
 }

 public int compare(Object o1, Object o2) {
  int result = 0;
  if (!(o1 instanceof Object[]) && !(o2 instanceof Object[])) {
   return -1;
  } else {
   Object[] l1 = (Object[]) o1;
   Object[] l2 = (Object[]) o2;
   Object oo1 = l1[col];
   Object oo2 = l2[col];
   if (oo1.getClass() == String.class
     && oo2.getClass() == String.class) {
    String obj1 = (String) oo1;
    String obj2 = (String) oo2;
    result = obj1.compareTo(obj2);
   } else if (oo1.getClass() == Double.class
     && oo2.getClass() == Double.class) {
    Double obj1 = (Double) oo1;
    Double obj2 = (Double) oo2;
    double t = obj1 - obj2;
    if (t > 0.00000) {
     result = 1;
    } else if (t < 0.00000) {
     result = -1;
    }
   } else {
    Integer obj1 = (Integer) oo1;
    Integer obj2 = (Integer) oo2;
    result = obj1 - obj2;
   }
  }
  if (!des) {
   result = -result;
  }
  return result;
 }

 public boolean isDes() {
  return des;
 }

 public void setDes(boolean des) {
  this.des = des;
 }

 public int getCol() {
  return col;
 }

 public void setCol(int col) {
  this.col = col;
 }
}

/*
// jdk1.6表格排序 修改上面文件的init()方法即可
 private void init() {
  List<Object[]> list = new Vector<Object[]>();
  Object[] obj = null;
  for (int i = 0; i < 50; i++) {
   obj = new Object[3];
   String s = "";
   if (i % 2 == 0) {
    s = "aw";
   } else {
    s = "3e";
   }
   obj[0] = "name" + s;
   obj[1] = i + (123 / (i + 1)) + 2;
   obj[2] = i + 17.0169 / (i + 1) * 1.1347;
   list.add(obj);
  }
  String[] names = { "姓名", "学号", "成绩" };
  model = new TableModel(names, 0);
  model.addData(list);
  final JTable table = new JTable(model);
  TableRowSorter<TableModel> sort = new TableRowSorter<TableModel>(model);
  CompareTo to = new CompareTo();
  for (int i = 0; i < names.length; i++) {
   sort.setComparator(i, to);
  }
  table.setRowSorter(sort);
  // DefaultTableCellRenderer defaultHeaderRenderer = new
  // SortHeaderRenderer();
  // defaultHeaderRenderer.setHorizontalAlignment(0);
  // defaultHeaderRenderer.setHorizontalTextPosition(JLabel.LEFT);
  // JTableHeader jtableheader = table.getTableHeader();
  // jtableheader.setDefaultRenderer(defaultHeaderRenderer);
  // addListener(table);
  JScrollPane js = new JScrollPane(table);
  JFrame frame = new JFrame();
  frame.getContentPane().add(js);
  frame.setSize(400, 300);
  frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
  frame.pack();
  frame.setVisible(true);
 }

*/