请教：如何让JTree的节点显示不同的图标？

Question

DefaultTreeCellRenderer类中的
setLeafIcon(Icon newIcon) 
setOpenIcon(Icon newIcon) 
setClosedIcon(Icon newIcon) 

Answer 1

谢谢LoveRose兄的指教！
可是我还是不太明白，我是想根据不同的节点信息给各个节点设置不同的图标，而不是按照是叶子节点或者还是打开或者关闭的节点来设置。
请继续指教！
谢谢。

Answer 2

大概看看不明白去找本Swing关于JTree的书看看public class CellTreeCellRenderer extends DefaultTreeCellRenderer
{
public  Component getTreeCellRendererComponent(JTree tree,
                                                  Object value,
                                                  boolean sel,
                                                  boolean expanded,
                                                  boolean leaf,
                                                  int row,
                                                  boolean hasFocus)
{
        try
            {
                    super.getTreeCellRendererComponent( tree, value, sel, expanded, leaf, row, hasFocus);
                    //set the icon if the node has
                     if(value == null) return this;
                    DefaultMutableTreeNode node=(DefaultMutableTreeNode)value;
                    if(node.isLeaf()&&node.getLevel()==1)
                    {
                        Icon icon = getClosedIcon();
                        setIcon(icon);
                        return this;
                    }
                    Object objvec=node.getUserObject();
                    Vector vector;
                    if(objvec instanceof Vector)
                    {
                     vector=(Vector)objvec;
                     Object pobj=vector.get(0);
                     LocationInfo ploc=(LocationInfo)pobj;
                     //System.out.println("cell"+ploc);
                     UiTreeObj uobj=UiNodeManager.instance().getObject(ploc);
                     Object obj=UiNodeManager.instance().getEntity(ploc);
                     UiEntityParts ppobj=(UiEntityParts)obj;
                     //Object obj=node.getUserObject();
                     if(ppobj.getType().equals(PartsType.PGN_CELL))
                     {
                     LocationInfo loc= ((UiTreeObj)uobj).getLocation();
                      setText(ppobj.getName());
                     if (vector.size()>1)
                    {
                       setForeground(Color.red);
                     }
                     setIcon(null);
                  }
          else
          {
                     return this;
                    }
            }
         }
         catch(Exception e)
         {
              GUILog.OutputLog(e);
         }
        return this;
}}