JTree的节点式样美化实现鼠标事件监听

想要实现JTree节点的式样自定义，首先要继承DefaultTreeCellRenderer类，DefaultTreeCellRenderer类是每个节点的父类。

public class TreeCell extends DefaultTreeCellRenderer {
   
   

    /**
     * ID
     */
    private static final long serialVersionUID = 1L;

    public static int mouseRow = -1;

    // 通过mouseEnter判定当前鼠标是否悬停
    private boolean mouseEnter = false;

    public TreeCell() {
        super();

    }

    //绘制每个节点的式样
    @Override