java 提取应用程序图标，根据exe路径提取图标

上网找到的文章，基本上都是这两种方案，推荐使用第二种，第一种适合做窗口左上角小图标

import lombok.extern.slf4j.Slf4j;
import sun.awt.shell.ShellFolder;

import javax.imageio.ImageIO;
import javax.swing.*;
import javax.swing.filechooser.FileSystemView;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.*;

/**
 * @author NPF
 * @date 2020/10/27 15:53
 */
@Slf4j
public class Icon {

    /**
     * @param args
     */
    public static void main(String[] args) throws FileNotFoundException {

        Icon.getIcon1();
        Icon.getIcon2();

    }

    /**
     * 参考网址：https://blog.youkuaiyun.com/weixin_34023863/article/details/91560836
     * 第一种形式获取icon,利用javax.swing中FileSystemView获取
     * 缺点就是很小，很模糊
     */
    public static void getIcon1(){
        // --------------------------------------------
        // 缺点就是很小，很模糊
        File file1 = new File("C:\\Program Files (x86)\\KuGou2012\\KuGou.exe");
        Image image = ((ImageIcon) FileSystemView.getFileSystemView().getSystemIcon(file1)).getImage();
        int width = 10;
        int height = 10;
        BufferedImage bi = new BufferedImage(width,height,BufferedImage.TYPE_INT_RGB);
        Graphics g = bi.getGraphics();
        g.drawImage(image,0,0,width,height,null);
        g.dispose();
        File f = new File("D:\\KuGou.exe11.png");
        try {
            ImageIO.write(bi, "png", f);
        } catch (IOException e) {
            log.error("写png文件失败",e);
        }
    }

    /**
     * 推荐使用
     * 参考网址：https://zhidao.baidu.com/question/317417746.html
     * 第二种形式获取icon,利用通过awt.shellFolder获取图标
     * 获取的32*32 比较清晰，可以使用
     */
    public static void getIcon2() throws FileNotFoundException {
        File file = new File("C:\\Program Files (x86)\\KuGou2012\\KuGou.exe");
        // 图标保存地址
        OutputStream inStream = new FileOutputStream(new File("D:\\KuGou.exe_64.png"));
        try {
            // 通过awt.shellFolder获取图标 默认为32 *32
            ShellFolder shellFolder = ShellFolder.getShellFolder(file);
            ImageIcon icon = new ImageIcon(shellFolder.getIcon(true));
            BufferedImage imgIcon = (BufferedImage) icon.getImage();

            // 调整icon图标大小，放大后会模糊
            imgIcon = resize(imgIcon,64,64);

            ImageIO.write(imgIcon, "png", inStream);
            inStream.flush();
            inStream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    /**
     * 调整大小
     * @param img
     * @param newW
     * @param newH
     * @return
     */
    public static BufferedImage resize(BufferedImage img, int newW, int newH) {
        int w = img.getWidth();
        int h = img.getHeight();
        BufferedImage dimg = new BufferedImage(newW, newH, img.getType());
        Graphics2D g = dimg.createGraphics();
        g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
                RenderingHints.VALUE_INTERPOLATION_BILINEAR);
        g.drawImage(img, 0, 0, newW, newH, 0, 0, w, h, null);
        g.dispose();
        return dimg;
    }

}