dropmenutag.java

这是一个轻便的j2ee的web应用框架,是一个在多个项目中运用的实际框架,采用struts,hebinate,xml等技术,有丰富的tag,role,navigation,session,dictio

package com.esimple.framework.web.taglib.menu;


import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.BodyTagSupport;
import javax.servlet.jsp.tagext.TagSupport;

import org.apache.struts.util.RequestUtils;
import org.apache.struts.util.ResponseUtils;


/**
 * @author steven
 *
 */
public class DropMenuTag  extends BodyTagSupport {
	private String menuId = "mainMenu";
	private String style = "hbr";
	private String theme = "ThemeOffice";
	private String model = "mainMenu";
	
	protected String scope = null;

	public String getScope() {
		return (this.scope);
	}

	public void setScope(String scope) {
		this.scope = scope;
	}	
	public void setMenuId(String menuId){
		this.menuId = menuId;
	}
	
	public String getMenuId(){
		return this.menuId;
	}
	
	public void setStyle(String style){
		this.style = style;
	}
	
	public String getStyle(){
		return this.style;
	}
	
	public void setTheme(String theme){
		this.theme = theme;
	}
	
	public String getTheme(){
		return this.theme;
	}		
	
	public void setModel(String model){
		this.model = model;
	}
	
	public String getModel(){
		return this.model;
	}		
		
	public int doStartTag() {
		
		MenuModel menu=null;
		try {
			if( model != null ){
				menu = (MenuModel)RequestUtils.lookup(pageContext, model,scope);
			}
		} catch (JspException e) {
			e.printStackTrace();
		}
		
		//System.out.println("menu:" + menu );
		if( menu == null ) return SKIP_BODY;
			
		try {
			writeHtml( menu );
		} catch (Exception e) {
			e.printStackTrace();
		}
		
		return TagSupport.SKIP_BODY;
	}

	private void writeHtml(MenuModel menu) throws Exception {
		StringBuffer results = new StringBuffer();
		results.append("<DIV id="+menuId+"></DIV>");
		results.append("<SCRIPT language=JavaScript src='/widget/menu/JSCookMenu.js' type=text/javascript></SCRIPT>");
		results.append("<SCRIPT language=JavaScript type=text/javascript>");
		results.append( DropMenuMaker.makeMenu(menu) );
		results.append("cmDraw ('"+ menuId + "', myMenu, '"+ style + "', cmThemeOffice, '"+ theme +"');");
		results.append("</SCRIPT></div>");
		ResponseUtils.write(pageContext, results.toString());

	}
}