插入测试数据：
INSERT INTO menu_item
(id, parent_name, name, title, titleCN, location)
VALUES
(1,null,'DatabaseMenu','Database Menu','数据库动态菜单',null),
(2,'DatabaseMenu','Yahoo','Yahoo Mail','雅虎邮件','http://mail.yahoo.com'),
(3,'DatabaseMenu','JavaBlogs','JavaBlogs','Java博客','http://javablogs.com'),
(4,null,'StandaloneMenu','Standalone Menu','独立的菜单','http://www.sohu.com')
> 将数据库驱动程序放到lib目录中，并加入到Build Path，如MySQL的数据库驱动mysql-connector-java-3.1.8-bin.jar，解压缩commons- collections-3.1.zip，将commons-collections-3.1.jar释放到lib目录，并加入Build Path
> 新建一个Struts的Action，代码如下：
package cn.appex.menu;
import java.io.UnsupportedEncodingException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.ListResourceBundle;
import java.util.Map;
import com.mysql.jdbc.Driver;
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 net.sf.navigator.menu.PermissionsAdapter;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
public class MenuAction extends Action {
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
buildMenuRepository(request);
buildMenuResourceBundle(request);
buildMenuPermissions(request);
return (mapping.findForward("success"));
}
/**
* 创建菜单数据结构
*
* @param request
*/
private void buildMenuRepository(HttpServletRequest request) {
MenuRepository repository = new MenuRepository();
// Get the repository from the application scope - and copy the
// DisplayerMappings from it.
MenuRepository defaultRepository = (MenuRepository) request
.getSession().getServletContext().getAttribute(
MenuRepository.MENU_REPOSITORY_KEY);
repository.setDisplayers(defaultRepository.getDisplayers());
Map[] menus = getMenuComponents();
for (int i=0; i < menus.length; i++) {
MenuComponent mc = new MenuComponent();
Map row = menus[i];
String name = (String) row.get("name");
mc.setName(name);
String parent = (String) row.get("parent_name");
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) row.get("title");
mc.setTitle(title);
String location = (String) row.get("location");
mc.setLocation(location);
String description = (String) row.get("description");
mc.setDescription(description);
repository.addMenu(mc);
}
request.setAttribute("examplesRepository", repository);
}