做了七天的动态树，虽然还没有做完但先把一些比较重要的东西记下来。
目前实现了点击节点动态加载树的功能，但点击左侧的箭头相应的事件还没有找到，还是希望有经验的朋友可以指点一二。
<h:panelGrid columns="2" width="100%" columnClasses="col1,col2"> <rich:tree style="width:300px" nodeSelectListener="#{tree1bean.nodeload}" toggleOnClick="true" switchType="ajax" value="#{tree1bean.treeNode}"> </rich:tree> </h:panelGrid>
以上的toggleOnClick实现了点击节点时展开、关闭树节点。
switchType="ajax"实现了局部刷新，只是树加载的部分刷新，但不重载整个页面。
package org.jboss.test.main;
import java.util.List;
import javax.ejb.Remove;import javax.faces.event.AbortProcessingException;import javax.persistence.EntityManager;
import org.jboss.seam.ScopeType;import org.jboss.seam.annotations.In;import org.jboss.seam.annotations.Name;import org.jboss.seam.annotations.Scope;import org.richfaces.component.UITree;import org.richfaces.event.NodeExpandedEvent;import org.richfaces.event.NodeSelectedEvent;import org.richfaces.model.TreeNode;import org.richfaces.model.TreeNodeImpl;
@Scope(ScopeType.SESSION)@Name("tree1bean")public class Tree1Bean{ private Tree tree; private TreeNode treenode = null; private List<Tree> onloadtree; private List<Tree> onloadtree1; private String selectnodesql = "from Tree t where t.parentid = ? order by t.id"; private int linkid; private int flg; private int parentid;
@In("entityManager") private EntityManager em;
private void firstNode(int id,TreeNode node){ onloadtree = em.createQuery(selectnodesql).setParameter(1, id).getResultList(); for (int i=0;i<onloadtree.size();i++){ TreeNodeImpl nodeImpl = new TreeNodeImpl(); nodeImpl.setData(onloadtree.get(i).getName()); node.addChild(new Integer(onloadtree.get(i).getId()), nodeImpl); secondeNode(onloadtree.get(i).getId(),nodeImpl); } } private void secondeNode(int id,TreeNode node){ onloadtree1 = em.createQuery(selectnodesql).setParameter(1, id).getResultList(); for (int i=0;i<onloadtree1.size();i++){ TreeNodeImpl nodeImpl = new TreeNodeImpl(); nodeImpl.setData(onloadtree1.get(i).getName()); node.addChild(new Integer(onloadtree1.get(i).getId()), nodeImpl); } } public TreeNode getTreeNode(){ if (treenode == null){ treenode = new TreeNodeImpl(); parentid = 0; firstNode(parentid,treenode); } return treenode; } public void nodeload(NodeSelectedEvent event){ UITree tree = (UITree) event.getComponent(); String sss [] = tree.getRowKey().toString().split(":"); linkid = Integer.parseInt(sss[sss.length-1]); System.out.println("linkid="+linkid); tree.clearTreeNodeState(); firstNode(linkid,tree.getModelTreeNode()); }
public int getLinkid() { return linkid; } public void setLinkid1(int linkid) { this.linkid = linkid; } @Remove public void destroy() { // TODO Auto-generated method stub }}
以上的tree.clearTreeNodeState();实现了收缩节点以后其以后的节点都收缩了回去。回到了初始状态
相关资源：richfaces tree权限树
