寝食难安农业的毕业设计问题：如何解决JTree中的选择事件,请大家一定看看，谢谢！

Question

TreePath得到每一级路径，然后合并起来不就行了？如果还没理解我帮你写

Answer 1

public class TreeNode extends JPanel
{
        protected JTree m_tree;
        protected JTextField m_display;
        protected DefaultMutableTreeNode nodeZhuangxiang,nodejieXiang,nodeSearch,nodeSetting,
                                         nodeWaittingTest,nodeWaittingPacking,nodeWaittingRepair,userManagement,
                                         nodejieXiangBySN,nodejieXiangByBox,
                                         search,search1;
        public TreeNode()
        {
                DefaultMutableTreeNode top=new DefaultMutableTreeNode(new OidNode(1000,"RMA"));
                DefaultMutableTreeNode parent=top;                nodeZhuangxiang=new DefaultMutableTreeNode(new OidNode(0,"裝箱"));
                nodeWaittingTest=new DefaultMutableTreeNode(new OidNode(01,"待測庫"));
                nodeWaittingPacking=new DefaultMutableTreeNode(new OidNode(02,"包裝庫"));
                nodeWaittingRepair=new DefaultMutableTreeNode(new OidNode(03,"待修庫"));                nodeZhuangxiang.add(nodeWaittingTest);
                nodeZhuangxiang.add(nodeWaittingPacking);
                nodeZhuangxiang.add(nodeWaittingRepair);
                parent.add(nodeZhuangxiang);                nodejieXiang=new DefaultMutableTreeNode(new OidNode(1,"解箱"));
                nodejieXiangBySN=new DefaultMutableTreeNode(new OidNode(11,"按序號解箱"));
                nodejieXiangByBox=new DefaultMutableTreeNode(new OidNode(12,"按箱號解箱"));
                nodejieXiang.add(nodejieXiangBySN);
                nodejieXiang.add(nodejieXiangByBox);
                parent.add(nodejieXiang);                nodeSearch=new DefaultMutableTreeNode(new OidNode(2,"查詢"));
                search=new DefaultMutableTreeNode(new OidNode(21,"查詢"));
                search1=new DefaultMutableTreeNode(new OidNode(22,"查詢RMA NO"));
                nodeSearch.add(search);
                nodeSearch.add(search1);
                parent.add(nodeSearch);
                
                nodeSetting=new DefaultMutableTreeNode(new OidNode(3,"設置"));
userManagement = new DefaultMutableTreeNode(new OidNode(31,"用戶管理"));
nodeSetting.add(userManagement);
parent.add(nodeSetting);

                m_tree=new JTree(top);
                m_tree.setShowsRootHandles(true);
                m_tree.putClientProperty("JTree.linestyle","Angled");
                m_tree.setEditable(false);
                this.add( m_tree,BorderLayout.CENTER);  ////////////////////在?里加一行
                //JScrollPane s=new JScrollPane(m_tree);                setSize(400,300);
                setVisible(true);
        }
        public JTree getTree()
        {
         return this.m_tree;
        }
}
tree.getTree().addMouseListener(new MouseAdapter(){
public void mouseClicked(MouseEvent e){
tvwTreeView_mouseClicked(e);
}
});
private void tvwTreeView_mouseClicked(MouseEvent e)
{
try
{
TreePath pa=tree.getTree().getPathForLocation(e.getX(),e.getY());
if(pa==null)return;
Object[] nodes = pa.getPath();
String oid="";
for(int k=0;k<nodes.length;k++)
{
DefaultMutableTreeNode node =(DefaultMutableTreeNode)nodes[k];
OidNode nd = (OidNode)node.getUserObject();
oid+="."+nd.getId();
}
if(oid.equals(".1000.2.21"))
{
bcp=new BarCodePanel();
js.setRightComponent(bcp);
//JOptionPane.showMessageDialog(null,"輸入的目錄名不能為空","Error",JOptionPane.ERROR_MESSAGE);
}
else if(oid.equals(".1000.0.1"))
{
try
{
rs=conManager.getResultSet(con,"1");
wt=new waitTest(rs);
js.setRightComponent(wt);
}catch(Exception ex){
System.out.println(ex.toString());
}
}
else if(oid.equals(".1000.0.2"))
{
try
{
rs=conManager.getResultSet(con,"3");
wP=new waitPacking(rs);
js.setRightComponent(wP);
}catch(Exception ex){
System.out.println(ex.toString());
}
}
else if(oid.equals(".1000.0.3"))
{
try
{
rs=conManager.getResultSet(con,"2");
wR=new waitRepair(rs);
js.setRightComponent(wR);
}catch(Exception ex){
System.out.println(ex.toString());
}
}
else if(oid.equals(".1000.3.31"))
{
try
{
uM = new UserManagement();
js.setRightComponent(uM);
}catch(Exception ex){
System.out.println(ex.toString());
}
}
else if(oid.equals(".1000.2.22"))
{
swe=new SearchWithExcel();
js.setRightComponent(swe);
}
else
{
js.setRightComponent(la1);
}
la1.setText(oid);
}catch(Exception ex){
System.out.println(ex.toString());
}    
}你參考一下點擊不同的葉子節點時  顯示不同的panel

Answer 2

其中
tree.getTree().addMouseListener(new MouseAdapter(){
public void mouseClicked(MouseEvent e){
tvwTreeView_mouseClicked(e);
}
});
是點擊葉子節點時候的響應事件然後根據不懂的id 來決定做神麼

Answer 3

public class TreeNode extends JPanel
{
        protected JTree m_tree;
        protected JTextField m_display;
        protected DefaultMutableTreeNode nodeZhuangxiang,nodejieXiang,nodeSearch,nodeSetting,
                                         nodeWaittingTest,nodeWaittingPacking,nodeWaittingRepair,userManagement,
                                         nodejieXiangBySN,nodejieXiangByBox,
                                         search,search1;
        public TreeNode()
        {
                DefaultMutableTreeNode top=new DefaultMutableTreeNode(new OidNode(1000,"RMA"));
                DefaultMutableTreeNode parent=top;                nodeZhuangxiang=new DefaultMutableTreeNode(new OidNode(0,"裝箱"));
                nodeWaittingTest=new DefaultMutableTreeNode(new OidNode(01,"待測庫"));
                nodeWaittingPacking=new DefaultMutableTreeNode(new OidNode(02,"包裝庫"));
                nodeWaittingRepair=new DefaultMutableTreeNode(new OidNode(03,"待修庫"));                nodeZhuangxiang.add(nodeWaittingTest);
                nodeZhuangxiang.add(nodeWaittingPacking);
                nodeZhuangxiang.add(nodeWaittingRepair);
                parent.add(nodeZhuangxiang);                nodejieXiang=new DefaultMutableTreeNode(new OidNode(1,"解箱"));
                nodejieXiangBySN=new DefaultMutableTreeNode(new OidNode(11,"按序號解箱"));
                nodejieXiangByBox=new DefaultMutableTreeNode(new OidNode(12,"按箱號解箱"));
                nodejieXiang.add(nodejieXiangBySN);
                nodejieXiang.add(nodejieXiangByBox);
                parent.add(nodejieXiang);                nodeSearch=new DefaultMutableTreeNode(new OidNode(2,"查詢"));
                search=new DefaultMutableTreeNode(new OidNode(21,"查詢"));
                search1=new DefaultMutableTreeNode(new OidNode(22,"查詢RMA NO"));
                nodeSearch.add(search);
                nodeSearch.add(search1);
                parent.add(nodeSearch);
                
                nodeSetting=new DefaultMutableTreeNode(new OidNode(3,"設置"));
userManagement = new DefaultMutableTreeNode(new OidNode(31,"用戶管理"));
nodeSetting.add(userManagement);
parent.add(nodeSetting);

                m_tree=new JTree(top);
                m_tree.setShowsRootHandles(true);
                m_tree.putClientProperty("JTree.linestyle","Angled");
                m_tree.setEditable(false);
                this.add( m_tree,BorderLayout.CENTER);  ////////////////////在?里加一行
                //JScrollPane s=new JScrollPane(m_tree);                setSize(400,300);
                setVisible(true);
        }
        public JTree getTree()
        {
         return this.m_tree;
        }
}
這個是一個類   用來表示整個數的 它繼承了JPanel