新建j2ee工程,工程名称为:struts-menu
Context root URL: /menu
选中Add JSTL libraries to WEB-INF/lib forlder? JSTL版本(随意)
 
以下所有的文件可以从源代码中拷贝
拷贝文件中的以下内容到工程的webroot目录中
imagesscriptsstylestemplates 四个文件夹
 
拷贝以下文件到 /WEB-INF/ 目录
struts-menu.tld
struts-menu-el.tld
menu-config.xml
 
拷贝以下文件到 /WEB-INF/lib/ 目录
struts-menu-2.3.jar
velocity-1.4.jar
velocity-tools-view-1.0.jar
 
拷贝以下文件到 /src/ 目录
globalMacros.vm
 
拷贝以下文件到 /WEB-INF/lib/ 目录,此文件是在使用j2ee1.4版本创建工程时才需要
commons-lang-2.0.jar         此文件将在录像包中提供
 
刷新工程
 
创建Struts框架
 
按下Ctrl + N ,使用向导新增 struts 插件
 
Plugin class: net.sf.navigator.menu.MenuPlugIn
点击 add 按钮,在对话框中填入以下内容
Property:menuConfig
   Value:/WEB-INF/menu-config.xml
 
 
按下Ctrl + N ,使用向导新增 Action
Use case:find
其它使用默认值
 
在WebRoot目录中新建两个jsp文件,index.jsp ok.jsp
 
创建一个 Forward
name:okGo
Path:/ok.jsp
 
修改 index.jsp 文件,内容如下:
<html>
 <head>
    <title>ok</title>
 </head>
 <body>
    <a href="find.do">Find</a>
 </body>
</html>
 
修改 ok.jsp 文件,内容如下:
<%@ page contentType="text/html;charset=UTF-8" language="java"%>
<%@ taglib uri="/WEB-INF/struts-menu.tld" prefix="menu" %>
<%@ taglib uri="/WEB-INF/struts-menu-el.tld" prefix="menu-el" %>
<%@ taglib uri="/WEB-INF/c.tld" prefix="c" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
    <title>Dynamic, Database-driven Menu</title>
    <link rel="stylesheet" type="text/css" media="all"
        href="<c:urlvalue="/styles/menuExpandable.css"/>"/>
    <script type="text/javascript"
        src="<c:urlvalue="/scripts/menuExpandable.js"/>"></script>
    <link rel="stylesheet" type="text/css" media="all"
        href="<c:urlvalue="/styles/xtree.css"/>"/>
    <script type="text/javascript"
        src="<c:urlvalue="/scripts/xtree.js"/>"></script>
    <link rel="stylesheet" type="text/css" media="all"
        href="<c:urlvalue="/styles/global.css"/>"/>
    <script type="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";
                }
            }
        }
    </script>
</head>
<body>
    <div class="dynamicMenu">
        <menu:useMenuDisplayer name="ListMenu" repository="repository">
            <menu:displayMenu name="DatabaseMenu"/>
            <menu:displayMenu name="StandaloneMenu"/>
        </menu:useMenuDisplayer>
    </div>
    <div class="dynamicMenu tree">
    <script type="text/javascript">
        <menu:useMenuDisplayer name="Velocity" config="/templates/xtree.html"
            repository="repository">
          <c:forEach var="menu" items="${repository.topMenus}">
            <menu-el:displayMenu name="${menu.name}"/>
          </c:forEach>
        </menu:useMenuDisplayer>
    </script>
    </div>
</body>
</html>
 
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');
 
 
创建 Hibernate 框架,配置数据库连接,关于数据库连接的配置就不做介绍了,如果不知道如何配置的话请参考以前发布的录像!
记得点击 Copy JDBC Driver and add to classpath 链接
 
打开 MyEclipse Database Explorer 视图,创建 menu_item 的映射文件
 
修改 FindAction.java 文件,内容如下:
import java.util.List;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import net.sf.navigator.menu.MenuComponent;
import net.sf.navigator.menu.MenuRepository;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
import com.Hibernate.MenuItem;
import com.Hibernate.SessionFactory;
 
public class FindAction extends Action {
 
    public ActionForward execute(
        ActionMapping mapping,
        ActionForm form,
        HttpServletRequest request,
        HttpServletResponse response) {
        //创建连接
                   Session session=SessionFactory.currentSession();
        //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");
    }
}
 
以上代码是使用了hibernate操作数据,得到一个数据集,并将数据集添加到MenuRepository中
然后在jsp页面中使用以下代码显示树型菜单
<menu:useMenuDisplayer name="ListMenu" repository="repository">
            <menu:displayMenu name="DatabaseMenu"/>
            <menu:displayMenu name="StandaloneMenu"/>
        </menu:useMenuDisplayer>
 
menu-config.xml 文件中的内容已经被精减了,如果要使用XML文件来配置菜单的话,请查看struts-menu的示例
代码完成,现在进行测试!