src/com/sys/web/left/tree/NavTree.java

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package com.sys.web.left.tree;

import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

import com.manager.xml.util.XMLUtil;

public class NavTree {
	private static String systemTitle;
	
	public static String genNav(String parentType,String type) {
		try {
			Document doc = loadConfig();
			Node root = doc.getDocumentElement();
			systemTitle = XMLUtil.getNodeAttribute(root, "name");
			NodeList mgrList = XMLUtil.getChildListByName(root, "manager");
			return genTree(parentType,mgrList,type);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			return null;
		}
	}
	
	public static String genTitile() {
		return systemTitle;
	}

	
	
	private static Document loadConfig() throws Exception {
		String configPath = NavTree.class.getResource("").getPath();
		return XMLUtil.parseXMLFile(configPath+"/tree.xml");
	}
	
	private static String genTree(String pType,NodeList mgrList,String type) {
		StringBuffer sb = new StringBuffer();
		for(int i=0;i<mgrList.getLength();i++) {
			Node nd = (Node)mgrList.item(i);
			String parentType = XMLUtil.getNodeAttribute(nd, "type");
			if(parentType.equals(pType)) {
			sb.append("<li class=\"subMenu\">");
			String name = XMLUtil.getNodeAttribute(nd, "name");
			sb.append("<a href=\"#\">")
			.append(name).append("</a>");
			genChildTree(nd,sb,type);
			sb.append("</li>");
			}
		}
		return sb.toString();
	}
	
	private static void genChildTree(Node parent,StringBuffer sb,String type) {
		NodeList list = XMLUtil.getChildListByName(parent, "link");
		if(list != null && list.getLength() > 0) {
			sb.append("<ul style=\"display: none;\">");
			for(int i=0;i<list.getLength();i++) {
				
				Node nd = (Node)list.item(i);