java实现gif动画效果(java显示动态图片)

就是每隔一定的时间显示一张图片，全部图片文件位于：“工作空间\项目名称\bin\动态图\花好月圆\”文件夹下。文件名类似：1001.jpg,1002.jpg,一直到1016.jpg:

/*
 * donttai.java
 *
 * created on __date__, __time__
 */

package 动态图;

import java.awt.graphics;
import java.awt.image;
import java.awt.image.imageobserver;
import java.io.file;
import java.io.ioexception;

import javax.imageio.imageio;

/**
 *
 * @author  __user__
 */
public class donttai extends javax.swing.jframe implements runnable
{

    /** creates new form donttai */
    public donttai()
    {
        initcomponents();
    }

    //string path = "e:\\workspaces\\myeclipse_9.0\\20120731\\bin\\动态图\\1\\10";
    //java默认文件路径是项目的根目录，所以要手动加上bin及其以下的路径
    string path="bin/动态图/花好月圆/10";
    int idx = 1;

    public void paint(graphics g)
    {
        imageobserver imageobserver = new imageobserver()
        {

            @override
            public boolean imageupdate(image img, int infoflags, int x, int y,
                    int width, int height)
            {
                // todo auto-generated method stub
                return false;
            }
        };
        try
        {
            //g.drawimage(imageio.read(new file(donttai.class.getresource("1.png").tostring())), 20, 20, imageobserver);
            string temp = "";
            if (idx <= 9)
                temp = path + "0" + idx + ".jpg";
            else if (idx >= 10)
            {
                temp = path + idx + ".jpg";
            }
            g.drawimage(imageio.read(new file(temp)), 100, 50, 400, 300,
                    imageobserver);
        }
        catch (ioexception e)
        {
            // todo auto-generated catch block
            e.printstacktrace();
        }
    }

    /** this method is called from within the constructor to
     * initialize the form.
     * warning: do not modify this code. the content of this method is
     * always regenerated by the form editor.
     */
    //gen-begin:initcomponents
    // <editor-fold defaultstate="collapsed" desc="generated code">
    private void initcomponents()
    {

        jbutton1 = new javax.swing.jbutton();

        setdefaultcloseoperation(javax.swing.windowconstants.exit_on_close);

        jbutton1.settext("jbutton1");

        javax.swing.grouplayout layout = new javax.swing.grouplayout(
                getcontentpane());
        getcontentpane().setlayout(layout);
        layout.sethorizontalgroup(layout.createparallelgroup(
                javax.swing.grouplayout.alignment.leading).addgroup(
                javax.swing.grouplayout.alignment.trailing,
                layout.createsequentialgroup()
                        .addcontainergap(483, short.max_value)
                        .addcomponent(jbutton1).addgap(35, 35, 35)));
        layout.setverticalgroup(layout.createparallelgroup(
                javax.swing.grouplayout.alignment.leading).addgroup(
                layout.createsequentialgroup().addgap(37, 37, 37)
                        .addcomponent(jbutton1)
                        .addcontainergap(392, short.max_value)));

        pack();
    }// </editor-fold>
    //gen-end:initcomponents

    /**
     * @param args the command line arguments
     */
    public static void main(string args[])
    {
        //        java.awt.eventqueue.invokelater(new runnable()
        //        {
        //            public void run()
        //            {
        //                new donttai().setvisible(true);
        //               
        //            }
        //        });
        donttai donttai = new donttai();
        donttai.setvisible(true);
        donttai.run();
    }

    //gen-begin:variables
    // variables declaration - do not modify
    private javax.swing.jbutton jbutton1;

    // end of variables declaration//gen-end:variables

    @override
    public void run()
    {
        // todo auto-generated method stub
        while (true)
        {
            repaint();
            if (idx < 16)
                idx++;
            else
                idx = 1;
            try
            {
                thread.sleep(60);
            }
            catch (interruptedexception e)
            {
                // todo auto-generated catch block
                e.printstacktrace();
            }

        }
    }

}