java swing jlist拖拽一条重新排序

package com.jlist;import java.awt.BorderLayout;import java.awt.event.MouseEvent;import java.awt.event.MouseListener;import java.awt.event.MouseMotionListener;import javax.swing.DefaultListModel;import javax.swing.JFrame;import javax.swing.JList;import javax.swing.JPanel;import javax.swing.event.ListSelectionEvent;import javax.swing.event.ListSelectionListener;public class Test {public static void main(String[] args) {ListFrame f = new ListFrame();f.setSize(600, 400);f.setTitle("Test");f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);f.setVisible(true);}}class ListFrame extends JFrame {/** * * */private static final long serialVersionUID = 1L;private int first;private int sec;public ListFrame() {JPanel panel = new JPanel();this.getContentPane().add(panel, BorderLayout.CENTER);final DefaultListModel m = new DefaultListModel();for (int i = 0; i < 15; i++)m.addElement("0000" + i);final JList list = new JList(m);list.addMouseListener(new MouseListener() {public void mouseClicked(MouseEvent e) {// TODO Auto-generated method stub}public void mouseEntered(MouseEvent e) {// TODO Auto-generated method stub}public void mouseExited(MouseEvent e) {// TODO Auto-generated method stub}public void mousePressed(MouseEvent e) {// TODO Auto-generated method stubfirst = list.locationToIndex(e.getPoint());System.out.println(first);}public void mouseReleased(MouseEvent e) {// TODO Auto-generated method stubsec = list.locationToIndex(e.getPoint());System.out.println(sec);if (sec != -1) {String s1 = m.getElementAt(first).toString();String s2 = m.getElementAt(sec).toString();if (first != sec) {if (first < sec) {m.add(sec, s1);m.remove(first);} else {m.remove(first);m.add(sec, s1);}list.clearSelection();}}}});panel.add(list);}}

版权声明：本文为博主原创文章，未经博主允许不得转载。