Java给JLabel加选择路径监听

JLabel 不像按钮，要添加鼠标事件的话 用鼠标事件监听：
JLabel jl = new JLabel();
    jl.addMouseListener(new MouseListener(){
      public void mouseClicked(MouseEvent e) {
        // 处理鼠标点击
      }
      public void mouseEntered(MouseEvent e) {
        // 处理鼠标移入
      }
      public void mouseExited(MouseEvent e) {
        // 处理鼠标离开
      }
      public void mousePressed(MouseEvent e) {
        // 处理鼠标按下
      }
      public void mouseReleased(MouseEvent e) {
        // 处理鼠标释放
      }
    });

JLabel label1 = new JLabel("默认保存路径:");
        label1.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                JFileChooser fileChooser = new JFileChooser();
                fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
                int returnVal = fileChooser.showOpenDialog(fileChooser);
                if (returnVal == JFileChooser.APPROVE_OPTION) {
                    String filePath = fileChooser.getSelectedFile()
                        .getAbsolutePath();//这个就是你选择的文件夹的路径
                    System.out.println("filePath = " + filePath);
                    tfSavePath.setText(filePath);
                    //TODO  日期:2020-12-04T17:17:39.372Z 目的: 设置默认保存路径
//                    ZhihuUtils.setPrivateInfo("defSavePath",filePath);
                }
            }
        });