<span style="font-size:14px;"> </span><span style="font-size:14px; white-space: pre;"> </span><span style="font-family:Courier New;font-size:12px;"><script type="text/javascript" src="jquery-easyui-1.2.6/jquery-1.7.2.min.js"></script>   <link rel="stylesheet" type="text/css" href="jquery-easyui-1.2.6/themes/default/easyui.css">  <link rel="stylesheet" type="text/css" href="jquery-easyui-1.2.6/themes/icon.css">  <script type="text/javascript" src="jquery-easyui-1.2.6/jquery.easyui.min.js"></script>  <script type="text/javascript" src="jquery-easyui-1.2.6/locale/easyui-lang-zh_CN.js"></script></span> 

<span style="font-size:14px;">drop database easyui; create database easyui; use easyui; show tables; #創(chuàng)建菜單表 create table menu(  id int(11) not null auto_increment, ####菜單id###  name varchar(20) default null,  ####菜單名####  url varchar(100) default null,  #### 菜單url####  checked varchar(10) default null, ####菜單是否被選中  icon varchar(30) default null,  ####菜單圖標(biāo)####  parent_id int(11) default null,  ####父節(jié)點(diǎn)菜單的id####  primary key(id)       ####id是主鍵####    ); #插入測(cè)試數(shù)據(jù)   ####測(cè)試數(shù)據(jù)#### insert into menu(id,name,url,checked,icon,parent_id) values (1,'權(quán)限菜單',null,'',null,0), (2,'用戶管理',null,'0',null,1), (3,'崗位管理',null,'',null,1), (4,'資源管理',null,'',null,1), (5,'用戶功能1',null,'',null,2), (6,'崗位功能1',null,'0',null,3), (7,'資源功能2','/easyui/index.jsp','0',null,3), (8,'資源功能1','sss','0',null,4), (9,'崗位功能2',null,'',null,3), (10,'資源功能3','111','0',null,4), (11,'資源管理4','222','',null,4), (14,'崗位功能3','dfds',null,null,3), (17,'用戶功能2','sss','0',null,2); #查看數(shù)據(jù) select * from menu; //查詢跟節(jié)點(diǎn) select * from menu where parent_id=0; #查看指定父節(jié)點(diǎn)下有哪些子節(jié)點(diǎn) select * from menu where parent_id=2;</span><span style="font-size:24px;"> </span> 

<span style="font-family:Courier New;font-size:12px;">package com.hsj.utils; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; public class JDBCUtils {  static {   try {    Class.forName("com.mysql.jdbc.Driver");   } catch (ClassNotFoundException e) {    e.printStackTrace();   }  }  public static Connection getConnection() throws Exception {   return DriverManager.getConnection(     "jdbc:mysql:///easyui?useUnicode=true&characterEncoding=UTF-8",     "root", "zxczxc");  }  public static void close(ResultSet rs, PreparedStatement ps, Connection conn) {   try {    if (rs != null)     rs.close();   } catch (Exception e) {    e.printStackTrace();   } finally {    try {     if (ps != null)      ps.close();    } catch (Exception e) {     e.printStackTrace();    } finally {     try {      if (conn != null)       conn.close();     } catch (Exception e) {      e.printStackTrace();     }    }   }  } }</span><span style="font-size:24px;"> </span> 

<span style="font-family:Courier New;font-size:12px;">package com.hsj.domain; public class Menu {  private int id; //菜單id  private String name; //菜單名  private String url; //菜單鏈接的網(wǎng)址  private String checked; //菜單是否被選中  private String icon; //菜單圖標(biāo)  private int parent_id; //當(dāng)前菜單的父節(jié)點(diǎn)id  public Menu(){}  public Menu(int id, String name, String url, String checked, String icon,int parentId) {   this.id = id;   this.name = name;   this.url = url;   this.checked = checked;   this.icon = icon;   parent_id = parentId;  }  public int getId() {   return id;  }  public void setId(int id) {   this.id = id;  }  public String getName() {   return name;  }  public void setName(String name) {   this.name = name;  }  public String getUrl() {   return url;  }  public void setUrl(String url) {   this.url = url;  }  public String getChecked() {   return checked;  }  public void setChecked(String checked) {   this.checked = checked;  }  public String getIcon() {   return icon;  }  public void setIcon(String icon) {   this.icon = icon;  }  public int getParent_id() {   return parent_id;  }  public void setParent_id(int parentId) {   parent_id = parentId;  } } </span> 

<span style="font-family:Courier New;font-size:12px;">package com.hsj.domain; import java.util.HashMap; import java.util.Map; public class TreeDTO {  private int id;  private String text;  private String iconCls;  private String checked;  private int parent_id;  private String state;  /**   * 自定義屬性信息   */  private Map<String, Object> attributes = new HashMap<String, Object>();  public TreeDTO() {  }  public TreeDTO(int id, String text, String iconCls, String checked,    int parent_id, String state, Map<String, Object> attributes) {   this.id = id;   this.text = text;   this.iconCls = iconCls;   this.checked = checked;   this.parent_id = parent_id;   this.state = state;   this.attributes = attributes;  }  public int getId() {   return id;  }  public void setId(int id) {   this.id = id;  }  public String getText() {   return text;  }  public void setText(String text) {   this.text = text;  }  public String getIconCls() {   return iconCls;  }  public void setIconCls(String iconCls) {   this.iconCls = iconCls;  }  public String getChecked() {   return checked;  }  public void setChecked(String checked) {   this.checked = checked;  }  public int getParent_id() {   return parent_id;  }  public void setParent_id(int parentId) {   parent_id = parentId;  }  public String getState() {   return state;  }  public void setState(String state) {   this.state = state;  }  public Map<String, Object> getAttributes() {   return attributes;  }  public void setAttributes(Map<String, Object> attributes) {   this.attributes = attributes;  }  @Override  public String toString() {   return "TreeDTO [attributes=" + attributes + ", checked=" + checked     + ", iconCls=" + iconCls + ", id=" + id + ", parent_id="     + parent_id + ", state=" + state + ", text=" + text + "]";  } } </span> 

<span style="font-family:Courier New;font-size:12px;">package com.hsj.dao; import java.util.List; import com.hsj.domain.Menu; import com.hsj.domain.TreeDTO; public interface MenuDao{  /**   * 根據(jù)父節(jié)點(diǎn)的值查詢所有的子節(jié)點(diǎn)   * @param parentId   * @return   */  public List<TreeDTO> getChildrenByParentId(String parentId);  /**   * 根據(jù)id值查詢當(dāng)前對(duì)象   * @param id   * @return   */  public Menu findMenuById(int id);  /**   * 保存指定對(duì)象   * @param <T>   * @param t   */  public <T> void save(T t);  /**   * 修改菜單對(duì)象   * @param menu   */  public void update(Menu menu);  /**   * 根據(jù)id刪除指定對(duì)象   * @param id   */  public void delete(int id);  /**   * 根據(jù)父節(jié)點(diǎn)刪除當(dāng)前父節(jié)點(diǎn)下所有的子節(jié)點(diǎn)   * @param parentId 父節(jié)點(diǎn)id   */  public void deleteChildrenByParentId(int parentId);  /**   * 根據(jù)當(dāng)前節(jié)點(diǎn) 的id值刪除它的所有子節(jié)點(diǎn)   * @param id   */   public void deleteChildren(int id); } </span> 

<span style="font-family:Courier New;font-size:12px;">package com.hsj.dao.bean; import java.lang.reflect.Field; import java.lang.reflect.Method; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import com.hsj.dao.MenuDao; import com.hsj.domain.Menu; import com.hsj.domain.TreeDTO; import com.hsj.utils.JDBCUtils; public class MenuDaoBean implements MenuDao{  public <T> int getTotalRecord(Class<T> clazz) {   // TODO Auto-generated method stub   return 0;  }  public <T> void save(T t)  {   //1.根據(jù)對(duì)象得到類模板對(duì)象   Class<T> clazz= (Class<T>) t.getClass();   //2.得到當(dāng)前類中所有字段組成的數(shù)組，不管訪問權(quán)限如何，但不包括父類中的字段   Field[] fields=clazz.getDeclaredFields();   //insert into t_menu(field1,field2,....) values(value1,value2,....)   List<String> key=new ArrayList<String>();//key用來存儲(chǔ)字段列表   List<Object> value=new ArrayList<Object>();//value用來存儲(chǔ)值列表   String methodName=null;   Method method=null;   for(int i=0;i<fields.length;i++)   {    try    {      //getName     methodName="get"+getMethodName(fields[i].getName());     method=clazz.getMethod(methodName);     Object o=method.invoke(t);     if(o!=null && !"id".equals(fields[i].getName()))     {       key.add(fields[i].getName());       value.add(o);          }    }    catch (Exception e)    {     e.printStackTrace();    };   }   //組拼sql語(yǔ)句   //String table=clazz.getName().substring(clazz.getName().lastIndexOf(".")+1);   String table=clazz.getSimpleName();   StringBuffer sql= new StringBuffer("insert into "+table+" (");   StringBuffer values=new StringBuffer(" values(");   for(int i=0;i<value.size();i++)   {      sql.append(key.get(i)+",");      values.append("?,");   }   //insert into menu (name,url)   sql.deleteCharAt(sql.length()-1).append(")");   //values(?,?)   values.deleteCharAt(values.length()-1).append(")");   //insert into menu (name,url) values(?,?)   sql.append(values);   Connection conn=null;   PreparedStatement ps=null;   try   {    conn=JDBCUtils.getConnection();    ps=conn.prepareStatement(sql.toString());    //只有Object[]不為空且數(shù)組中有元素    if(key!=null && key.size()>0)    {     for(int i=0;i<key.size();i++)     {      ps.setObject(i+1,value.get(i));     }    }    System.out.println(ps.toString());    ps.execute();    System.out.println("添加成功");   }   catch (Exception e) {    e.printStackTrace();   }finally{    JDBCUtils.close(null, ps, conn);   }  }  /**   * 將該字符串的一個(gè)字母變成大寫   * @param fildeName 字符串   * @return   * @throws Exception   */  private static String getMethodName(String fieldName) throws Exception  {   byte[] items = fieldName.getBytes();   items[0] = (byte) ((char) items[0] - 'a' + 'A');   return new String(items);  }  /**   * 根據(jù)菜單的父id找到他所有的子菜單并存儲(chǔ)到集合中   */  public List<TreeDTO> getChildrenByParentId(String parentId) {   Connection conn = null;   PreparedStatement ps = null;   ResultSet rs = null;   List<Menu> menus=new ArrayList<Menu>();   List<TreeDTO> treeDTOS=new ArrayList<TreeDTO>();   try   {    String sql="";    if(parentId==null || "".equals(parentId))    {     sql="select * from menu where parent_id=0";    }else{     sql="select * from menu where parent_id="+parentId;    }    conn=JDBCUtils.getConnection();    ps=conn.prepareStatement(sql);    rs=ps.executeQuery();    while(rs.next())    {      Menu menu=new Menu();      menu.setId(rs.getInt("id"));      menu.setIcon(rs.getString("icon"));      menu.setUrl(rs.getString("url"));      menu.setChecked(rs.getString("checked"));      menu.setName(rs.getString("name"));      menu.setParent_id(rs.getInt("parent_id"));      menus.add(menu);    }   }catch(Exception e){    e.printStackTrace();   }finally{    JDBCUtils.close(rs, ps, conn);   }   for(Menu m : menus)   {    TreeDTO td=new TreeDTO();    td.setId(m.getId());    td.setText(m.getName());    td.setChecked(m.getChecked());    td.setIconCls(m.getIcon());    td.setParent_id(m.getParent_id());    List<Menu> childrenList=getChildren(m.getId());    if(childrenList.size()>0)    {     td.setState("closed");    }else{     td.setState("open");    }    Map<String,Object> attributes=new HashMap<String,Object>();    attributes.put("url", m.getUrl());    td.setAttributes(attributes);    treeDTOS.add(td);   }   return treeDTOS;  }  /**   * 根據(jù)當(dāng)前菜單的主鍵值找到當(dāng)前菜單有哪些子菜單對(duì)象組成的集合并返回   * @param id   * @return   */  public List<Menu> getChildren(int id)  {   Connection conn = null;   PreparedStatement ps = null;   ResultSet rs = null;   List<Menu> menus=new ArrayList<Menu>();   try   {    conn=JDBCUtils.getConnection();    ps=conn.prepareStatement("select * from menu where parent_id="+id);    rs=ps.executeQuery();    while(rs.next())    {      Menu menu=new Menu();      menu.setId(rs.getInt("id"));      menu.setIcon(rs.getString("icon"));      menu.setUrl(rs.getString("url"));      menu.setChecked(rs.getString("checked"));      menu.setName(rs.getString("name"));      menu.setParent_id(rs.getInt("parent_id"));      menus.add(menu);    }   }   catch(Exception e)   {    e.printStackTrace();   }finally{    JDBCUtils.close(rs, ps, conn);   }   return menus;  }  /**   * 根據(jù)菜單的主鍵查找當(dāng)前菜單對(duì)象   */  public Menu findMenuById(int id) {   Connection conn = null;   PreparedStatement ps = null;   ResultSet rs = null;   Menu menu=null;   try   {    conn=JDBCUtils.getConnection();    ps=conn.prepareStatement("select * from menu where id="+id);    rs=ps.executeQuery();    if(rs.next())    {      menu=new Menu();      menu.setId(rs.getInt("id"));      menu.setIcon(rs.getString("icon"));      menu.setUrl(rs.getString("url"));      menu.setChecked(rs.getString("checked"));      menu.setName(rs.getString("name"));      menu.setParent_id(rs.getInt("parent_id"));    }   }   catch(Exception e)   {    e.printStackTrace();   }finally{    JDBCUtils.close(rs, ps, conn);   }   return menu;  }  public void update(Menu menu) {   Connection conn = null;   PreparedStatement ps = null;   ResultSet rs = null;   try   {    conn=JDBCUtils.getConnection();    ps=conn.prepareStatement("update menu set name=?,url=?,checked=?,icon=?,parent_id=? where id=?");    ps.setString(1, menu.getName());    ps.setString(2, menu.getUrl());    ps.setString(3, menu.getChecked());    ps.setString(4, menu.getIcon());    ps.setInt(5, menu.getParent_id());    ps.setInt(6, menu.getId());    ps.executeUpdate();   }   catch(Exception e)   {    e.printStackTrace();   }finally{    JDBCUtils.close(rs, ps, conn);   }  }  /**   * 根據(jù)主鍵刪除當(dāng)前菜單對(duì)象   */  public void delete(int id) {   Connection conn = null;   PreparedStatement ps = null;   ResultSet rs = null;   try   {    conn=JDBCUtils.getConnection();    ps=conn.prepareStatement("delete from menu where id="+id);    ps.executeUpdate();   }   catch(Exception e)   {    e.printStackTrace();   }finally{    JDBCUtils.close(rs, ps, conn);   }  }  /**   * 根據(jù)當(dāng)前菜單的主鍵值刪除當(dāng)前菜單的所有子菜單及當(dāng)前菜單對(duì)象   */  public void deleteChildren(int id)  {   List<Menu> menus=getChildren(id);   for(int i=0;i<menus.size();i++)   {    int cid=menus.get(i).getId();    //delete(cid);    deleteChildren(cid);   }   delete(id);  }  /**   * 根據(jù)菜單的父id刪除所有子菜單   */  public void deleteChildrenByParentId(int parentId) {   Connection conn = null;   PreparedStatement ps = null;   ResultSet rs = null;   try   {    conn=JDBCUtils.getConnection();    ps=conn.prepareStatement("delete from menu where parent_id="+parentId);    System.out.println("========="+ps.toString());    ps.executeUpdate();   }   catch(Exception e)   {    e.printStackTrace();   }finally{    JDBCUtils.close(rs, ps, conn);   }  } } </span> 

<span style="font-family:Courier New;font-size:12px;">package com.hsj.servlet; import java.io.IOException; import java.io.PrintWriter; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import net.sf.json.JSONArray; import com.hsj.dao.MenuDao; import com.hsj.dao.bean.MenuDaoBean; import com.hsj.domain.Menu; import com.hsj.domain.TreeDTO; public class MenuServlet extends HttpServlet {  public void doGet(HttpServletRequest request, HttpServletResponse response)    throws ServletException, IOException {   this.doPost(request, response);  }  public void doPost(HttpServletRequest request, HttpServletResponse response)    throws ServletException, IOException {   response.setContentType("text/html;charset=utf-8");   PrintWriter out = response.getWriter();   String method = request.getParameter("method");   if (method != null && !"".equals(method) && "getMenu".equals(method)) {    getMenu(request, response);   } else if (method != null && !"".equals(method)     && "changeMenu".equals(method)) {    changeMenu(request, response);   } else if (method != null && !"".equals(method)     && "addMenu".equals(method)) {    addMenu(request, response);   } else if (method != null && !"".equals(method)     && "updateMenu".equals(method)) {    updateMenu(request, response);   } else if (method != null && !"".equals(method)     && "deleteMenu".equals(method)) {    deleteMenu(request, response);   }   out.flush();   out.close();  }  /**   * 刪除當(dāng)前菜單及其當(dāng)前菜單的所有子菜單   * @param request   * @param response   */  private void deleteMenu(HttpServletRequest request,    HttpServletResponse response) {   String id=request.getParameter("id");   MenuDao menuDao=new MenuDaoBean();   System.out.println(id);   menuDao.deleteChildren(Integer.valueOf(id));  }  /**   * 修改菜單   * @param request   * @param response   */  private void updateMenu(HttpServletRequest request,    HttpServletResponse response) {   String id=request.getParameter("id");   String name=request.getParameter("name");   String url=request.getParameter("url");   MenuDao menuDao=new MenuDaoBean();   Menu menu=menuDao.findMenuById(Integer.valueOf(id));   menu.setName(name);   menu.setUrl(url);   menuDao.update(menu);  }  /**   * 添加菜單   * @param request   * @param response   */  private void addMenu(HttpServletRequest request,HttpServletResponse response) {   String parentId=request.getParameter("parentId");   String name=request.getParameter("name");   String url=request.getParameter("url");   Menu menu=new Menu();   menu.setName(name);   menu.setUrl(url);   menu.setParent_id(Integer.valueOf(parentId));   MenuDao menuDao=new MenuDaoBean();   menuDao.save(menu);  }  /**   * 菜單菜單的父菜單   * @param request   * @param response   */  private void changeMenu(HttpServletRequest request,    HttpServletResponse response) {    String targetId= request.getParameter("targetId");    String sourceId= request.getParameter("sourceId");    String point= request.getParameter("point");    System.out.println("point="+point);    MenuDao menuDao=new MenuDaoBean();    Menu target= menuDao.findMenuById(Integer.valueOf(targetId));    Menu source= menuDao.findMenuById(Integer.valueOf(sourceId));    if("append".equals(point))    {      //源菜單作為目標(biāo)菜單的子菜單     source.setParent_id(target.getId());    }else{     //源菜單和目標(biāo)菜單使用相同的父菜單的id值     source.setParent_id(target.getParent_id());    }    menuDao.update(source);  }  /**   * 根據(jù)父id得到它所有的子菜單   * @param request   * @param response   */  private void getMenu(HttpServletRequest request,HttpServletResponse response) {   System.out.println("getMenu-------");   //獲取當(dāng)前展的節(jié)點(diǎn)的id   try {    String parentId=request.getParameter("id");    MenuDao menuDao=new MenuDaoBean();    List<TreeDTO> treeDTOS=menuDao.getChildrenByParentId(parentId);    System.out.println(treeDTOS.toString());    response.setContentType("text/html;charset=utf-8");    String json=JSONArray.fromObject(treeDTOS).toString();    response.getWriter().write(json);    System.out.println("json="+json);   } catch (Exception e) {    e.printStackTrace();   }  } } </span> 

<span style="font-family:Courier New;"><?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5"  xmlns="http://java.sun.com/xml/ns/javaee"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xsi:schemaLocation="http://java.sun.com/xml/ns/javaee  http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">  <servlet>  <servlet-name>MenuServlet</servlet-name>  <servlet-class>com.hsj.servlet.MenuServlet</servlet-class>  </servlet>  <servlet-mapping>  <servlet-name>MenuServlet</servlet-name>  <url-pattern>/menuServlet</url-pattern>  </servlet-mapping>  <welcome-file-list>  <welcome-file>index.jsp</welcome-file>  </welcome-file-list> </web-app></span> 

<span style="font-family:Courier New;"><%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html>  <head>  <base href="<%=basePath%>">  <title>tree的使用</title>  <script type="text/javascript" src="jquery-easyui-1.2.6/jquery-1.7.2.min.js"></script>   <link rel="stylesheet" type="text/css" href="jquery-easyui-1.2.6/themes/default/easyui.css">  <link rel="stylesheet" type="text/css" href="jquery-easyui-1.2.6/themes/icon.css">  <script type="text/javascript" src="jquery-easyui-1.2.6/jquery.easyui.min.js"></script>  <script type="text/javascript" src="jquery-easyui-1.2.6/locale/easyui-lang-zh_CN.js"></script>  <script type="text/javascript">   var flag;   $(function(){    $("#t1").tree({     url:"menuServlet?method=getMenu",      animate:true,//展開和折疊菜單時(shí)會(huì)伴隨著動(dòng)畫      dnd:true,//啟動(dòng)菜單項(xiàng)的拖拽功能      //checkbox:true,//菜單項(xiàng)前面是否顯示復(fù)選框      /*      point的取值可能為：       append：源節(jié)點(diǎn)作為目標(biāo)節(jié)點(diǎn)的子節(jié)點(diǎn)       top：源節(jié)點(diǎn)和目標(biāo)節(jié)點(diǎn)使用相同的父節(jié)點(diǎn)，并且源節(jié)點(diǎn)在目標(biāo)節(jié)點(diǎn)的上面       bottom：源節(jié)點(diǎn)會(huì)產(chǎn)生在目標(biāo)節(jié)點(diǎn)的下面，并且和目標(biāo)節(jié)點(diǎn)是兄弟關(guān)系，并且源節(jié)點(diǎn)在目標(biāo)節(jié)點(diǎn)的下面      */      onDrop:function(target, source, point){//當(dāng)拖拽節(jié)點(diǎn)松手時(shí)觸發(fā)       //獲取目標(biāo)節(jié)點(diǎn)對(duì)象       var tar=$("#t1").tree("getNode",target);       $.ajax({        type:"post",        url:"menuServlet?method=changeMenu",        data:{         targetId:tar.id,         sourceId:source.id,         point:point        },        dataType:"json",        cache:false,        success:function(result){         $.messager.show({          title:"提示信息",          msg:"操作成功"         });        }       });      },      onContextMenu: function(e,node){       //禁止瀏覽器的右鍵菜單       e.preventDefault();       $(this).tree('select', node.target);       $('#mm').menu('show', {        left: e.pageX,        top: e.pageY       });      }    });    $("#savebtn").click(function(){      if(flag=="add")      {        //1.獲取所選中的節(jié)點(diǎn)        var parent=$("#t1").tree("getSelected");        $("#t1").tree("append",{         parent:parent.target,         data:[{          text:$("#dialogMenu").find("input[name=name]").val(),          attributes:{url:$("#dialogMenu").find("input[name=url]").val()}         }]        });        //后臺(tái)更新        $.ajax({         type:"post",         url:"menuServlet?method=addMenu",         cache:false,         data:{          parentId:parent.id,          name:$("#dialogMenu").find("input[name=name]").val(),          url:$("#dialogMenu").find("input[name=url]").val()          },         dataType:"json",         success:function(result){          //重新加載tree          $("#t1").tree("reload",parent.target);          $.messager.show({            title:"提示信息",            msg:"操作成功"           });         }        });      }else{        $.ajax({         type:"post",         url:"menuServlet?method=updateMenu",         cache:false,         data:{          id:$("#dialogMenu").find("input[name=id]").val(),          name:$("#dialogMenu").find("input[name=name]").val(),          url:$("#dialogMenu").find("input[name=url]").val()          },         dataType:"json",         success:function(result){          //重新加載tree,刷新所選中的節(jié)點(diǎn)的父節(jié)點(diǎn)          var node=$("#t1").tree("getSelected");          var parentNode=$("#t1").tree("getParent",node.target);          $("#t1").tree("reload",parentNode.target);          $.messager.show({            title:"提示信息",            msg:"操作成功"           });         }        });      }      //關(guān)閉dialog       $("#dialog").dialog("close");     });     $("#cancelbtn").click(function(){     $("#dialog").dialog("close");     });   });   function append(){    flag="add";    $("#dialogMenu").form("clear");    $("#dialog").dialog("open");   }   function removes(){    //前臺(tái)更新    //選中的節(jié)點(diǎn)    var selecteNode=$("#t1").tree("getSelected");    $("#t1").tree("remove",selecteNode.target);    //后臺(tái)更新    $.post("menuServlet?method=deleteMenu",{id:selecteNode.id},function(result){      $.messager.show({       title:"提示信息",       msg:"操作成功"      });    });   }   function editor(){    flag="edit";    //清空表單，把選中的節(jié)點(diǎn)填充到該dialog中,包括:id,name,url    $("#dialogMenu").form("clear");    //選中的節(jié)點(diǎn)    var selecteNode=$("#t1").tree("getSelected");    //填充數(shù)據(jù)    $("#dialogMenu").form("load",{     id:selecteNode.id,     name:selecteNode.text,     url:selecteNode.attributes.url    });    //打開dialog    $("#dialog").dialog("open");   }  </script>  </head>  <body>  <div id="mm" class="easyui-menu" style="width:120px;">   <div onclick="append()">Append</div>   <div onclick="editor()">Editor</div>   <div onclick="removes()">Remove</div>  </div>  <ul id="t1"></ul>  <div id="dialog" title="設(shè)置權(quán)限" class="easyui-dialog" style="width:400px" closed=true modal=true>   <form id="dialogMenu" method="post">    <input type="hidden" name="id"/>    <table>     <tr>      <td>名稱:</td>      <td><input type="text" name="name"/></td>     </tr>     <tr>      <td>url:</td>      <td><input type="text" name="url"/></td>     </tr>     <tr>      <td colspan="2">       <input id="savebtn" type="button" value="保存"/>       <input id="cancelbtn" type="button" value="取消"/>      </td>     </tr>    </table>   </form>  </div>  </body> </html> </span>