使用struts-menu制作树型菜单实例

阅读更多

sql 代码

创建数据库表
CREATE TABLE `menu_item` (
  `id` bigint(20) NOT NULL default '0',
  `parent_name` varchar(30) default NULL,
  `name` varchar(30) default NULL,
  `title` varchar(30) default NULL,
  `description` varchar(50) default NULL,
  `location` varchar(255) default NULL,
  `target` varchar(10) default NULL,
  `onclick` varchar(100) default NULL,
  `onmouseover` varchar(100) default NULL,
  `onmouseout` varchar(100) default NULL,
  `image` varchar(50) default NULL,
  `altImage` varchar(30) default NULL,
  `tooltip` varchar(100) default NULL,
  `roles` varchar(100) default NULL,
  `page` varchar(255) default NULL,
  `width` varchar(5) default NULL,
  `height` varchar(5) default NULL,
  `forward` varchar(50) default NULL,
  `action` varchar(50) default NULL,
  PRIMARY KEY  (`id`)
);
INSERT INTO menu_item (id, name, title) VALUES (1,'DatabaseMenu','Database Menu');
INSERT INTO menu_item (id, parent_name, name, title, location) VALUES (2,'DatabaseMenu','Yahoo','Yahoo Mail','http://mail.yahoo.com');
INSERT INTO menu_item (id, parent_name, name, title, location) VALUES(3,'DatabaseMenu','JavaBlogs','JavaBlogs','http://javablogs.com');
INSERT INTO menu_item (id, name, title, location) VALUES (4,'StandaloneMenu','Standalone Menu','http://raibledesigns.com');

struts-menu.tld

struts-menu-el.tld

menu-config.xml

放到 /WEB-INF/ 目录

struts-menu-2.3.jar

velocity-1.4.jar

velocity-tools-view-1.0.jar

commons-lang-2.0.jar

放到 /WEB-INF/lib/ 目录

globalMacros.vm放到 /src/ 目录

以上大多文件在下载的struts-menu里带了有

java 代码

public class FindAction extends Action {

    public ActionForward execute(
        ActionMapping mapping,
        ActionForm form,
        HttpServletRequest request,
        HttpServletResponse response) {
        //创建
        Session session=HibernateSessionFactory.getSession();
        //创建事务
        Transaction tx=session.beginTransaction();
        //创建对话
        Query query=session.createQuery("FROM MenuItem m order by id");
        List list=query.list();
        //事务提交
        tx.commit();
        if(list.size()<0)
            return mapping.getInputForward();
        MenuRepository repository = new MenuRepository();
        HttpSession httpsession=(HttpSession)request.getSession();
        ServletContext application=(ServletContext)httpsession.getServletContext();
        MenuRepository defaultRepository = (MenuRepository)application.getAttribute(MenuRepository.MENU_REPOSITORY_KEY);
        repository.setDisplayers(defaultRepository.getDisplayers());
        for (int i=0; i < list.size(); i++) {
            MenuComponent mc = new MenuComponent();
            MenuItem mi=(MenuItem) list.get(i);
            String name = mi.getName();
            mc.setName(name);
            String parent = (String) mi.getParentName();
            System.out.println(name + ", parent is: " + parent);
            if (parent != null) {
                MenuComponent parentMenu = repository.getMenu(parent);
                if (parentMenu == null) {
                    System.out.println("parentMenu '" + parent + "' doesn't exist!");
                    // create a temporary parentMenu
                    parentMenu = new MenuComponent();
                    parentMenu.setName(parent);
                    repository.addMenu(parentMenu);
                }
                mc.setParent(parentMenu);
            }
            String title = (String)mi.getTitle();
            mc.setTitle(title);
            String location = (String) mi.getLocation();
            mc.setLocation(location);
            repository.addMenu(mc);
        }
        request.setAttribute("repository", repository);
        return mapping.findForward("okGo");
    }
}

    Dynamic, Database-driven Menu
    "stylesheet" type="text/css" media="all"
        href="/styles/menuExpandable.css"/>" />
    "text/javascript"
        src="/scripts/menuExpandable.js"/>">
    "stylesheet" type="text/css" media="all"
        href="/styles/xtree.css"/>" />
    "text/javascript"
        src="/scripts/xtree.js"/>">
    "stylesheet" type="text/css" media="all"
        href="/styles/global.css"/>" />
    "text/javascript">
        /* Function for showing and hiding elements that use 'display:none' to hide */
        function toggleDisplay(targetId) {
            if (document.getElementById) {
                target = document.getElementById(targetId);
                if (target.style.display == "none"){
                    target.style.display = "";
                } else {
                    target.style.display = "none";
                }
            }
        }



    class="dynamicMenu">
        "ListMenu" repository="repository">
            "DatabaseMenu"/>
            "StandaloneMenu"/>

  

    class="dynamicMenu tree">   

    "text/javascript">   

        "Velocity" config="/templates/xtree.html"  

            repository="repository">   

          "menu" items="${repository.topMenus}">   

            "${menu.name}"/>   

             

           

       

    

  

  

java 代码