hibernate做无限极菜单树如此简单

package cn.isvi.entity;

import java.util.HashSet;
import java.util.Set;

public class Menu {
	
	private Integer id;
	private String menuName;
	private String parentId;
	private Menu parentMenu;
	private Set<Menu> children=new HashSet<Menu>();
	
	
	
	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	public String getMenuName() {
		return menuName;
	}
	public void setMenuName(String menuName) {
		this.menuName = menuName;
	}
	public String getParentId() {
		return parentId;
	}
	public void setParentId(String parentId) {
		this.parentId = parentId;
	}
	public void addMenu(Menu menu){
		children.add(menu);
		menu.parentMenu=this;
	}

	public Set<Menu> getChildren() {
		return children;
	}
	public void setChildren(Set<Menu> children) {
		this.children = children;
	}
	public Menu getParentMenu() {
		return parentMenu;
	}
	public void setParentMenu(Menu parentMenu) {
		this.parentMenu = parentMenu;
	}
}

 

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC 
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
    
<hibernate-mapping package="cn.isvi.entity">
   <class name="Menu" 
   table="Menu">
     <id name="id" column="id">
 		 <generator class="increment">
	 	</generator>
     </id>
     
     
     <property name="menuName"></property>
     <property name="parentId"></property>
      <set name="children" 
     	cascade="save-update" lazy="false" inverse="true">
     	<key column="nc_id"></key>
     	<one-to-many class="cn.isvi.entity.Menu"/>
     </set>
     <many-to-one name="parentMenu" column="nc_id"></many-to-one>
   </class>
   
</hibernate-mapping>

 

package cn.isvi.test;

import cn.isvi.dao.TemplateDAO;
import cn.isvi.dao.impl.TemplateDAOImpl;
import cn.isvi.entity.Menu;

public class MenuTest {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		TemplateDAO tdao=new TemplateDAOImpl();
		Menu menu=new Menu();
		menu.setMenuName("1级");
		
		Menu s1=new Menu();
		s1.setMenuName("2级");
		menu.addMenu(s1);
		
		Menu s2=new Menu();
		s2.setMenuName("3级");
		s1.addMenu(s2);
		try {
			tdao.saveObj(menu);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}

}
<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical">
	
	<mx:RemoteObject id="menus" destination="menus"
		 endpoint="http://localhost:8400/GDGWeb/messagebroker/amf"
		 result="resultHandle(event)" fault="faultHandle(event)"> 
		
	</mx:RemoteObject> 
	<mx:Script>
		<![CDATA[
			import mx.rpc.events.FaultEvent;
			import mx.rpc.events.ResultEvent;
			import mx.collections.ArrayCollection;
			[Bindable]
			private var hibernateData:ArrayCollection;
			
			private function getData():void{
				menus.getMenus();//注意，不能查询所有的Menu，只查询root第一个Menu就可以了
			}
			private function resultHandle(event:ResultEvent):void{
				this.hibernateData=event.result as ArrayCollection;
				trace("得到数据");
			}
			private function faultHandle(event:FaultEvent):void{
				trace(event.message);
			}
		]]>
	</mx:Script>
	<mx:Tree dataProvider="{hibernateData}" labelField="menuName" width="100%" height="90%">
		
	</mx:Tree>
	<mx:Button label="得到数据" click="getData()">
		
	</mx:Button>
</mx:WindowedApplication>