关于Jenkov JSP Prize Tags

目标jsp页面，里面有定义节电，删除节点的代码。希望能替换掉原来的静态代码部分。<%@ page import="com.jenkov.prizetags.tree.impl.TreeNode,
                 com.jenkov.prizetags.tree.impl.Tree,
                 com.jenkov.prizetags.tree.itf.*"%>
<%@ taglib uri="/WEB-INF/treetag.tld" prefix="tree" %>
<%@ taglib uri="/WEB-INF/requesttags.tld" prefix="request" %>
<%@ taglib uri="/WEB-INF/ajaxtags.tld" prefix="ajax" %>
<%
    response.setHeader("Cache-Control", "no-cache");
    response.setHeader("Pragma", "no-cache");
%><%
    //this Java code should be replaced by code that builds the tree from file system, xml document,
    //database etc. It could also be moved to a Struts action or Spring controller.
    if(session.getAttribute("tree.model") == null){        //creating a simple tree model instance
        ITree       tree          = new Tree();
        tree.setSingleSelectionMode(true);        //adding server side event listeners to the tree model instance
        tree.addExpandListener(new IExpandListener(){
           public void nodeExpanded(ITreeNode node, ITree tree){
               System.out.println("node " + node.getName() + " was expanded");
           }
        });        tree.addCollapseListener(new ICollapseListener(){
           public void nodeCollapsed(ITreeNode node, ITree tree){
               System.out.println("node " + node.getName() + " was collapsed");
           }
        });        tree.addSelectListener(new ISelectListener(){
            public void nodeSelected(ITreeNode node, ITree tree){
                System.out.println("node " + node.getName() + " was active");
            }
        });        tree.addUnSelectListener(new IUnSelectListener(){
            public void nodeUnselected(ITreeNode node, ITree tree){
                System.out.println("node " + node.getName() + " was unselected");
            }
        });        //adding tree nodes in a tree structure to the tree model instance.        ITreeNode   charts        = new TreeNode ("chartsID", "Charts Name", "root");
ITreeNode   zhs           = new TreeNode ("zhsID", "Chinese Simplified", "charts");
ITreeNode   zht           = new TreeNode ("zhtID", "Chinese Traditional", "charts");
ITreeNode   us            = new TreeNode ("usID", "US", "us");

ITreeNode   zhs_r12       = new TreeNode ("zhs_R12ID", "Chinese Simplified R12", "zhs");        //Tool Tips on some nodes...
        charts.setToolTip("ROOT");

tree.setRoot(charts);

        charts.addChild(zhs);
charts.addChild(zht);
charts.addChild(us);
zhs.addChild(zhs_r12);
        
        //tree.expand(charts.getId());
        //tree.expand(cartoons.getId());        //tree.select(fantasy.getId());        //attaching an object to a tree node. The attached object
        //can also be used when generating the HTML for the tree.
        //thrillers.setObject("Attached Object");
charts.setObject("ROOT Directory");        //storing the tree model instance in the session.
        //this is where the tags get the tree model from later.
        session.setAttribute("tree.model", tree);
    }
%>
<tree:onExpand>
  <%--<script>top.window.main.location.href="detail.jsp?expand=<tree:expandedNodeId />"; </script>--%>
</tree:onExpand><tree:onCollapse>
  <%--<script>top.window.main.location.href="detail.jsp?collapse=<tree:collapsedNodeId />"; </script>--%>
</tree:onCollapse><tree:onSelect>
  <%--<script>top.window.main.location.href="detail.jsp?select=<tree:selectedNodeId />"; </script>--%>
</tree:onSelect><tree:onUnselect>
  <%--<script>top.window.main.location.href="detail.jsp?unselect=<tree:unselectedNodeId />"; </script>--%>
</tree:onUnselect><%-- Generating the Tree HTML --%>
<table cellspacing="0" cellpadding="0" border="0">
<tree:tree tree="tree.model" node="tree.node" >
    <tr><td
    ><table cellspacing="0" cellpadding="0" border="0">
    <tr><td><tree:nodeIndent    node="tree.node" indentationType="type"><tree:nodeIndentVerticalLine indentationType="type" ><img src="../images/verticalLine.gif"></tree:nodeIndentVerticalLine><tree:nodeIndentBlankSpace   indentationType="type" ><img src="../images/blankSpace.gif"></tree:nodeIndentBlankSpace></tree:nodeIndent></td>
    <tree:nodeMatch    node="tree.node" expanded="false" hasChildren="true"  isLastChild="false"><td><ajax:link targetElement="treeCell"><a href="treeAjaxTree.jsp?expand=<tree:nodeId node="tree.node"/>"><img src="../images/collapsedMidNode.gif" border="0"></a></ajax:link><img src="../images/closedFolder.gif"></td></tree:nodeMatch>
    <tree:nodeMatch    node="tree.node" expanded="true"  hasChildren="true"  isLastChild="false"><td><ajax:link targetElement="treeCell"><a href="treeAjaxTree.jsp?collapse=<tree:nodeId node="tree.node"/>"><img src="../images/expandedMidNode.gif"  border="0"></a></ajax:link><img src="../images/openFolder.gif"></td></tree:nodeMatch>
    <tree:nodeMatch    node="tree.node" expanded="false" hasChildren="true"  isLastChild="true" ><td><ajax:link targetElement="treeCell"><a href="treeAjaxTree.jsp?expand=<tree:nodeId node="tree.node"/>"><img src="../images/collapsedLastNode.gif"  border="0"></a></ajax:link><img src="../images/closedFolder.gif"></td></tree:nodeMatch>
    <tree:nodeMatch    node="tree.node" expanded="true"  hasChildren="true"  isLastChild="true" ><td><ajax:link targetElement="treeCell"><a href="treeAjaxTree.jsp?collapse=<tree:nodeId node="tree.node"/>"><img src="../images/expandedLastNode.gif" border="0"></a></ajax:link><img src="../images/openFolder.gif"></td></tree:nodeMatch>
    <tree:nodeMatch    node="tree.node" expanded="false" hasChildren="false" isLastChild="false"><td><img src="../images/noChildrenMidNode.gif"><img src="../images/nonFolder.gif"></td></tree:nodeMatch>
    <tree:nodeMatch    node="tree.node" expanded="false" hasChildren="false" isLastChild="true" ><td><img src="../images/noChildrenLastNode.gif"><img src="../images/nonFolder.gif"></td></tree:nodeMatch>    <td valign="top">
    <tree:nodeMatch node="tree.node" selected="true"><span style="Font-Size: 12px;"><b><tree:nodeName      node="tree.node"/></b></span></tree:nodeMatch>
    <tree:nodeMatch node="tree.node" selected="false"><ajax:link targetElement="detailCell"><a title="<tree:nodeToolTip node="tree.node" />" href="treeAjaxDetail.jsp?select=<tree:nodeId node="tree.node"/>"><span style="Font-Size: 12px;"><tree:nodeName      node="tree.node"/></span></a></ajax:link></tree:nodeMatch>    <%-- using the attached object of a node.
         The node object is now available in the http request attribute with the
         name given in the detachedObject attribute. You can then use the JSTL
         or Struts <bean:write id="theNodeObject" /> etc. tags to display information from the attached
         object.
    --%>
    <tree:detachNodeObject node="tree.node" detachedObject="theNodeObject"/>
    <%  if(request.getAttribute("theNodeObject") != null){
           out.print(request.getAttribute("theNodeObject"));
        }
    %>    </td>
    </tr>
    </table></td></tr>
</tree:tree>
</table>