java默认的选择器太丑了

如下选择管理器

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if(fileChooser.showOpenDialog(null)==JFileChooser.APPROVE_OPTION){
            pathField.setText(fileChooser.getSelectedFile().getPath());//文本框给出路径
            imgname = fileChooser.getSelectedFile().getName();//获取加密文件名
            imgpath = pathField.getText() ;
            imgpath = imgpath.substring(0,imgpath.length()-imgname.length());//获取加密的文件所在的文件夹
        }

增加下面代码
参考链接如下
https://zhidao.baidu.com/question/425294497293157012.html

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 if(UIManager.getLookAndFeel().isSupportedLookAndFeel()){//使用系统的文件管理器
            final String platform = UIManager.getSystemLookAndFeelClassName();
// If the current Look & Feel does not match the platform Look & Feel,
// change it so it does.
            if (!UIManager.getLookAndFeel().getName().equals(platform)) {
                try {
                    UIManager.setLookAndFeel(platform);
                } catch (Exception exception) {
                    exception.printStackTrace();
                }
            }
        }

总代码

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//选择图片路径事件
    public void cpathaction(ActionEvent arg0){
        JFileChooser fileChooser=new JFileChooser("C:/Users/Administrator/Desktop/");//默认首先搜寻路径,可根据自己的需要进行修改
        if(UIManager.getLookAndFeel().isSupportedLookAndFeel()){//使用系统的文件管理器
            final String platform = UIManager.getSystemLookAndFeelClassName();
// If the current Look & Feel does not match the platform Look & Feel,
// change it so it does.
            if (!UIManager.getLookAndFeel().getName().equals(platform)) {
                try {
                    UIManager.setLookAndFeel(platform);
                } catch (Exception exception) {
                    exception.printStackTrace();
                }
            }
        }
        if(fileChooser.showOpenDialog(null)==JFileChooser.APPROVE_OPTION){
            pathField.setText(fileChooser.getSelectedFile().getPath());//文本框给出路径
            imgname = fileChooser.getSelectedFile().getName();//获取加密文件名
            imgpath = pathField.getText() ;
            imgpath = imgpath.substring(0,imgpath.length()-	imgname.length());//获取加密的文件所在的文件夹
        }
    }