使用S2SH整合EXT的步骤如下:

1):创建表exttree,表结构如下:

drop table if exists exttree;

CREATE TABLE exttree(

 id bigint(11) auto_increment primary key,

 parentId bigint(11) NOT NULL,

 title varchar(255) default NULL,

 number bigint(11) default NULL,

 leaf int(4) default NULL,

 url varchar(255) default NULL  

);

insert into `exttree` values(null,-1,'Root',0,0,null);

insert into `exttree` values(null,1,'音乐',0,0,null);

insert into `exttree` values(null,2,'轻金属',1,1,null);

insert into `exttree` values(null,2,'重金属',2,1,null);

insert into `exttree` values(null,2,'R&B',3,1,null);

insert into `exttree` values(null,1,'体育',0,0,null);

insert into `exttree` values(null,6,'篮球',1,1,null);

insert into `exttree` values(null,6,'足球',2,1,null);

insert into `exttree` values(null,6,'体操',3,1,null);

insert into `exttree` values(null,1,'美食',0,0,null);

insert into `exttree` values(null,10,'中国菜',0,0,null);

insert into `exttree` values(null,11,'青椒找肉',0,1,null);

insert into `exttree` values(null,10,'日本菜',0,0,null);

insert into `exttree` values(null,13,'河夫烤鱼',0,1,null);

insert into `exttree` values(null,10,'法国菜',0,0,null);

insert into `exttree` values(null,15,'爆炒蜗牛',0,1,null);

PSNUMBER为节点之间的排序,ParentIDleaf为父节点和子节点的代码。

2)后台数据处理接口:

package com.exttree.dao;

import java.util.List;

import com.exttree.pojo.Exttree;

/**
 * Ext
访问数据库接口封装
 * 
 * 
@author BruceLeey
 * 
 */

public interface IExtTreeDemo  {

    
/**
     * 
根据ID查找对象
     * 
     * 
@param id
     * 
@return
     * 
@throws Exception
     */

    
public Exttree findById(Long id) throws Exception;

    
/**
     * 
根据父节点查询所有子节点列表
     * 
     * 
@param parentId
     * 
@return
     * 
@throws Exception
     */

    
public List<Exttree> findChildById(Long parentId) throws Exception;

    
/**
     * 
保存节点
     * 
     * 
@param node
     * 
@throws Exception
     */

    
public void save(Exttree node) throws Exception;

    
/**
     * 
根据ID删除子节点
     * 
     * 
@param node
     * 
@throws Exception
     */

    
public void removeChildById(Exttree node) throws Exception;

    
/**
     * 
修改节点
     * 
     * 
@param node
     * 
@throws Exception
     */

    
public void modify(Exttree node) throws Exception;

    
/**
     * 
执行繁杂的修改语句
     * 
     * 
@param hql
     * 
@throws Exception
     */

    
public void modifyBySQL(String hql) throws Exception;

    
/**
     * 
移除节点
     * 
     * 
@param id
     * 
@throws Exception
     */

    
public void ajaxRemoveNode(Long id) throws Exception;

实现类如下:

package com.exttree.dao;

import java.util.List;

import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import com.exttree.pojo.Exttree;

public class ExtTreeDemoImpl extends HibernateDaoSupport implements IExtTreeDemo  {

    public Exttree findById(Long id) throws Exception  {
        List<Exttree> list = 
this.getHibernateTemplate().find(
                "from Exttree ext where ext.id=?", id);
        
return list.size() >= 1 ? list.get(0) : null;
    }

    
public List<Exttree> findChildById(Long parentId) throws Exception  {

        
return this.getHibernateTemplate().find(
                "from Exttree ext where ext.parentId=?", parentId);
    }

    
public void modify(Exttree node) throws Exception  {

        
this.getHibernateTemplate().merge(node);  //相当于SaveOrUpdate

    }

    
public void removeChildById(Exttree node) throws Exception  {

        String hql = "delete from Exttree tree where tree.id="+node.getId();
        Session session = 
this.getHibernateTemplate().getSessionFactory()
                .openSession();
        Transaction tm = session.beginTransaction();
        tm.begin();
        Query query = session.createQuery(hql);
        query.executeUpdate();
        tm.commit();
    }

    
public void save(Exttree node) throws Exception  {

        
this.getHibernateTemplate().save(node);

    }

    
public void modifyBySQL(String hql) throws Exception  {
        Session session = 
this.getHibernateTemplate().getSessionFactory()
                .openSession();
        Transaction tm = session.beginTransaction();
        tm.begin();
        Query query = session.createSQLQuery(hql);
        query.executeUpdate();
        tm.commit();
    }

    
public void ajaxRemoveNode(Long id) throws Exception  {
        List<Exttree> list = 
this.findChildById(id);
        
for (Exttree object : list)  // 移除子节点
            ajaxRemoveNode(object.getId());
        }
        Exttree tree = 
new Exttree(); // 需改进
        tree.setId(id);
        
this.removeChildById(tree); // 父节点始终会移除
    }

}
需要注意的是,如果将removeChildById改成这样:

 

public void removeChildById(Exttree node) throws Exception  {

        
this.getHibernateTemplate().delete(node);
    }

 

 将会报此异常:a different object with the same identifier value was already associated with the session
 
内存中存在两个实例,但是不是同一个对象,因此Hibernate不知道该删除哪一个,因为在删除之前已构建一个实例,删除时再传递需要删除的对象,因为内存地址不一样,因此报这样的错误,解决办法是重新打开一个Session或者清空当前Session

 修改时也是如此,可使用HibernategetHibernateTemplate().merge(node);

 业务层接口如下:

 


package com.exttree.service;

import java.util.List;

import com.exttree.pojo.Exttree;

/**
 * EXTTree 
业务逻辑接口封装
 * 
 * 
@author BruceLeey
 * 
 */

public interface IExtTreeDemoService  {

    
/**
     * 
异步修改标题
     * 
     * 
@param id
     * 
@param title
     * 
@throws Exception
     */

    
public void ajaxModifyTitle(Long id, String title) throws Exception;

    
/**
     * 
异步移除父节点
     * 
     * 
@param parentId
     * 
@throws Exception
     */

    
public void ajaxRemoveParentById(Long parentId) throws Exception;

    
/**
     * 
异步移动节点
     * 
     * 
@param id
     * 
@param oldParentId
     * 
@param newParentId
     * 
@param nodeIndex
     * 
@throws Exception
     */

    
public void ajaxMoveNode(Long id, Long oldParentId, Long newParentId,
            Long nodeIndex) 
throws Exception;

    
/**
     * 
节点向上
     * 
     * 
@param parentId
     * 
@param minIndex
     * 
@param maxIndex
     * 
@throws Exception
     */

    
public void upNode(int parentId, int minIndex, int maxIndex)
            
throws Exception;

    
/**
     * 
节点向下
     * 
     * 
@param parentId
     * 
@param minIndex
     * 
@param maxIndex
     * 
@throws Exception
     */

    
public void downNode(int parentId, int minIndex, int maxIndex)
            
throws Exception;

    
/**
     * 
根据ID查找对象
     * 
     * 
@param id
     * 
@return
     * 
@throws Exception
     */

    
public Exttree findById(Long id) throws Exception;

    
/**
     * 
根据父节点查询所有子节点列表
     * 
     * 
@param parentId
     * 
@return
     * 
@throws Exception
     */

    
public List<Exttree> findChildById(Long parentId) throws Exception;

    
/**
     * 
修改节点
     * 
     * 
@param node
     * 
@throws Exception
     */

    
public void modify(Exttree node) throws Exception;
    
/**
     * 
保存节点
     * 
     * 
@param node
     * 
@throws Exception
     */

    
public void save(Exttree node) throws Exception;

}

 

 实现:

 


package com.exttree.service.impl;

import java.util.List;
import com.exttree.dao.IExtTreeDemo;
import com.exttree.pojo.Exttree;
import com.exttree.service.IExtTreeDemoService;

public class ExtTreeDemoServiceImpl implements IExtTreeDemoService  {

    
private IExtTreeDemo treeDAO = null;

    
public IExtTreeDemo getTreeDAO()  {
        
return treeDAO;
    }

    
public void setTreeDAO(IExtTreeDemo treeDAO)  {
        
this.treeDAO = treeDAO;
    }

    
public void ajaxModifyTitle(Long id, String title) throws Exception  {
        Exttree node = treeDAO.findById(id);
        
if (!title.equals(node.getTitle()))  // 
当节点标题确认修改了后调用
            node.setTitle(title);
            treeDAO.modify(node);
        }

    }

    
public void ajaxRemoveParentById(Long parentId) throws Exception  {
        Exttree obj = treeDAO.findById(parentId);
        
this.downNode(obj.getParentId().intValue(), obj.getNumber().intValue(),
                -1);
        treeDAO.ajaxRemoveNode(obj.getId()); 
// 移除父节点
    }

    
public void ajaxMoveNode(Long id, Long oldParentId, Long newParentId,
            Long nodeIndex) 
throws Exception  {
        Exttree node = treeDAO.findById(id);
        
int minIndex = node.getNumber().intValue();
        
int maxIndex = nodeIndex.intValue();
        
if (oldParentId == newParentId && minIndex != maxIndex)  {
            
if (minIndex < maxIndex)  {

                
this.downNode(oldParentId.intValue(), minIndex, maxIndex);

            } 
else if (minIndex > maxIndex)  {

                maxIndex = minIndex;
                minIndex = nodeIndex.intValue();
                
this.upNode(oldParentId.intValue(), minIndex, maxIndex);
            }

            node.setNumber(nodeIndex);
            treeDAO.modify(node);
        }
        
if (oldParentId != newParentId)  {

            
this.downNode(oldParentId.intValue(), minIndex, -1);

            
this.upNode(newParentId.intValue(), maxIndex, -1);

            node.setNumber(nodeIndex);
            node.setParentId(newParentId);
            treeDAO.modify(node);
        }
    }

    
public void downNode(int parentId, int minIndex, int maxIndex)
            
throws Exception  {
        StringBuffer hql = 
new StringBuffer(
                "update exttree set number=number-1 where parentId = ");
        hql.append(parentId);
        
if (maxIndex != -1)  {
            hql.append(" and number <= ");
            hql.append(maxIndex);
        }
        
if (minIndex != -1)  {
            hql.append(" and number > ");
            hql.append(minIndex);
        }
        treeDAO.modifyBySQL(hql.toString());
    }

    
public void upNode(int parentId, int minIndex, int maxIndex)
            
throws Exception  {
        StringBuffer hql = 
new StringBuffer(
                "update exttree set number=number+1 where parentId = ");
        hql.append(parentId);
        
if (maxIndex != -1)  {
            hql.append(" and number < ");
            hql.append(maxIndex);
        }
        
if (minIndex != -1)  {
            hql.append(" and number >= ");
            hql.append(minIndex);
        }
        treeDAO.modifyBySQL(hql.toString());
    }

    
public Exttree findById(Long id) throws Exception  {
        
return treeDAO.findById(id);
    }

    
public List<Exttree> findChildById(Long parentId) throws Exception  {
        
return treeDAO.findChildById(parentId);
    }

    
public void modify(Exttree node) throws Exception  {
        treeDAO.modify(node);
    }

    
public void save(Exttree node) throws Exception  {
        treeDAO.save(node);

    }
}

 

 主要的数据访问与业务写好之后,接下来将Web的访问控制写好:

 


package com.exttree.web;

import org.apache.struts2.ServletActionContext;

import com.exttree.pojo.Exttree;
import com.exttree.service.IExtTreeDemoService;

/**
 * Web
后端控制器
 * 
 * 
@author BruceLeey
 * 
 */

public class ExtTreeAction  {

    
private Exttree extTree = null;

    
private IExtTreeDemoService service = null;

    
/**
     * 
添加节点
     * 
     * 
@return
     */

    
public String saveNode() throws Exception  {
        
if (!"".equals(extTree.getId()) && null != extTree.getId())  {
            
if (service.findById(extTree.getId()) == null {

                
return "ERROR";
            } 
else  {

                service.modify(extTree);
                
return "SUCCESS";
            }
        }
        service.save(extTree);
        
return "SUCCESS";
    }

    
/**
     * 
修改节点
     * 
     * 
@return
     */

    
public String modifyNode() throws Exception  {
        
if (null != extTree.getId())  {
            ServletActionContext.getRequest().setAttribute("obj",
                    service.findById(extTree.getId()));
        } 
else  {

            ServletActionContext.getRequest().setAttribute("obj", extTree);
        }
        
return "EDIT";

    }

    
/**
     * 
异步获取数据
     * 
     * 
@return
     */

    
public String jsonData() throws Exception  {

        ServletActionContext.getRequest().setAttribute(
                "list",
                service.findChildById(Long.valueOf(ServletActionContext
                        .getRequest().getParameter("id"))));
        
return "JSON";
    }

    
public IExtTreeDemoService getService()  {
        
return service;
    }

    
public void setService(IExtTreeDemoService service)  {
        
this.service = service;
    }

    
public Exttree getExtTree()  {
        
return extTree;
    }

    
public void setExtTree(Exttree extTree)  {
        
this.extTree = extTree;
    }
}

  Spring配置如下:

 


<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi
="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:aop
="http://www.springframework.org/schema/aop"
    xmlns:tx
="http://www.springframework.org/schema/tx"
    xsi:schemaLocation
="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd">



    
<!-- 
配置SessionFactory -->
    
<bean id="sessionFactory"
        class
="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        
<property name="configLocation">
            
<value>classpath:hibernate.cfg.xml</value>
        
</property>
    
</bean>
    
<!-- 配置事务管理器 -->
    
<bean id="transactionManager"
        class
="org.springframework.orm.hibernate3.HibernateTransactionManager">
        
<property name="sessionFactory" ref="sessionFactory"></property>
    
</bean>

    
<!-- 配置事务的传播属性 -->
    
<tx:advice id="txAdvice" transaction-manager="transactionManager">
        
<tx:attributes>
            
<tx:method name="save*" propagation="REQUIRED" />
            
<tx:method name="modify*" propagation="REQUIRED" />
            
<tx:method name="remove*" propagation="REQUIRED" />
            
<tx:method name="ajax*" propagation="REQUIRED" />
            
<tx:method name="*" read-only="true" />
        
</tx:attributes>
    
</tx:advice>
    
<!-- 配置事务的切入点 -->
    
<aop:config>
        
<aop:pointcut id="allMethod"
            expression
="execution(* com.exttree.dao.*.*(..))" />
        
<aop:advisor pointcut-ref="allMethod" advice-ref="txAdvice" />
    
</aop:config>

    
<bean id="treeDAO" class="com.exttree.dao.ExtTreeDemoImpl">
        
<property name="sessionFactory" ref="sessionFactory"></property>
    
</bean>
    
<bean id="treeService"
        class
="com.exttree.service.impl.ExtTreeDemoServiceImpl">
        
<property name="treeDAO" ref="treeDAO"></property>
    
</bean>
    
<bean id="treeAction" class="com.exttree.web.ExtTreeAction"
        scope
="prototype">
        
<property name="service" ref="treeService"></property>
    
</bean>
</beans>

 本例子中使用了DWR作为异步调用服务器方法,DWR框架配置比较简单,因为例子中的对象由Spring托管,因此需要配置DWRSpring的交互,首先先看Web.xml中的配置

 


<?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">

    
<!-- Spring
托管HibernateSession -->
    
<filter>
        
<filter-name>sessionFilter</filter-name>
        
<filter-class>
            org.springframework.orm.hibernate3.support.OpenSessionInViewFilter
        
</filter-class>
    
</filter>
    
<filter-mapping>
        
<filter-name>sessionFilter</filter-name>
        
<url-pattern>/*</url-pattern>
    
</filter-mapping>

    
<!-- Struts2的前端控制器 -->
    
<filter>
        
<filter-name>struts2.x</filter-name>
        
<filter-class>
            org.apache.struts2.dispatcher.FilterDispatcher
        
</filter-class>
    
</filter>
    
<filter-mapping>
        
<filter-name>struts2.x</filter-name>
        
<url-pattern>/*</url-pattern>
    
</filter-mapping>
    
<!-- Spring配置文件的读取 -->
    
<context-param>
        
<param-name>contextConfigLocation</param-name>
        
<param-value>/WEB-INF/applicationContext.xml</param-value>
    
</context-param>
    
<listener>
        
<listener-class>
            org.springframework.web.context.ContextLoaderListener
        
</listener-class>
    
</listener>
    
<!-- DWR的配置 -->
    
<servlet>
        
<servlet-name>dwr-invoker</servlet-name>
        
<servlet-class>uk.ltd.getahead.dwr.DWRServlet</servlet-class>
        
<init-param>
            
<param-name>debug</param-name>
            
<param-value>true</param-value>
        
</init-param>
        
<init-param>
            
<param-name>
                allowGetForSafariButMakeForgeryEasier
            
</param-name>
            
<param-value>true</param-value>
        
</init-param>
        
<load-on-startup>1</load-on-startup>
    
</servlet>
    
<servlet-mapping>
        
<servlet-name>dwr-invoker</servlet-name>
        
<url-pattern>/dwr/*</url-pattern>
    
</servlet-mapping>
    
<welcome-file-list>
        
<welcome-file>index.jsp</welcome-file>
    
</welcome-file-list>
</web-app>

 

  dwr.xml配置与Spring的交互:

 


<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 2.0//EN" "http://www.getahead.ltd.uk/dwr//dwr20.dtd">

<dwr>
    
<allow>
        
<!-- javascript
属性为用户调研DWR的实例,这里creator交由Spring监管 -->
        
<create javascript="TreeDWR" creator="spring">
            
<!-- beanNameDWR配置Spring时特定,value值为在applicationContext.xml中配置的bean -->
            
<param name="beanName" value="treeService"></param>
            
<!-- 提供访问的方法 -->
            
<include method="ajaxModifyTitle" />
            
<include method="ajaxRemoveParentById" />
            
<include method="ajaxMoveNode" />
        
</create>
    
</allow>
</dwr>

 EXTJS的核心JS导入后,需要手动编写JS的业务,代码如下:

 


// 
全局路径
var basePath = "http://localhost:8080/ext_treedemo";
if(typeof(glbRootPath) != "undefined") {
    basePath = glbRootPath;
}
// 扩展窗体
FormEditWin = function() {
    
var curFormWin;
    
return  {
        width : 600,
        height : 400,
        showAddDirWin : 
function(parentNode)  {
            
// 显示添加子目录窗口
            var number = parentNode.indexOf(parentNode.lastChild) + 1;
            
var editpage = basePath
                    + "/treeAction!modifyNode.action?extTree.parentId="
                    + parentNode.id + "&extTree.leaf=0&extTree.number=" + number;
            
var window = this.createWin("windirnew", "新建目录节点", editpage, function()  {
                parentNode.reload();
            });
            window.show();
        },
        showAddLeafWin : 
function(parentNode)  {
            
// 显示添加子叶子节点窗口
            var number = parentNode.indexOf(parentNode.lastChild) + 1;
            
var editpage = basePath
                    + "/treeAction!modifyNode.action?extTree.parentId="
                    + parentNode.id + "&extTree.leaf=1&extTree.number=" + number;
            
var window = this.createWin("winleafnew", "新建叶子节点", editpage, function()  {
                parentNode.reload();
            });
            window.show();
        },
        showEditDirWin : 
function(node)  {
            
// 显示目录编辑窗口
            var editpage = basePath
                    + "/treeAction!modifyNode.action?extTree.id=" + node.id;
            
var window = this.createWin("win" + node.id, node.text, editpage, function()  {
                
var nodeparent = node.parentNode;
                
var tree = node.getOwnerTree();
                nodeparent.on("expand", 
function(pnode)  {
                    tree.getNodeById(node.id).select();
                }, 
this {
                    single : 
true
                });
                node.parentNode.reload();
            });
            window.show();
        },
        showEditLeafWin : 
function(node)  {
            
// 显示叶子节点编辑窗口
            var editpage = basePath
                    + "/treeAction!modifyNode.action?extTree.id=" + node.id;
            
var window = this.createWin("win" + node.id, node.text, editpage, function()  {
                
var nodeparent = node.parentNode;
                
var tree = node.getOwnerTree();
                nodeparent.on("expand", 
function(pnode)  {
                    tree.getNodeById(node.id).select();
                }, 
this {
                    single : 
true
                });
                node.parentNode.reload();
            });
            window.show();
        },
        createWin : 
function(winId, winTitle, iframePage, closeFun)  {
            
// 供各类型窗口创建时调用
            var win = Ext.getCmp(winId);
            
if (!win)  {
                win = 
new Ext.Window( {
                    id : winId,
                    title : "
菜单编辑窗口-" + winTitle,
                    width : 
this.width,
                    height : 
this.height,
                    maximizable : 
true,
                    modal : 
true,
                    html : "<iframe width='100%' height='100%' frameborder='0' src='"
                            + iframePage + "'></iframe>"
                });
                
this.reloadNavNode = closeFun;
            }
            curFormWin = win;
            
return win;
        },
        reloadNavNode : 
function()  {
        },
        close : 
function()  {
            
if(curFormWin) {
                curFormWin.close();
            }
        }
    }
}();

// 导航树
NavTree = function() {
    
var nav;
    
var navEditor;
    
var leafMenu;
    
var dirMenu;
    
var loader;
    
var root;
    
var removeFlag = false;
    
var titleChangeFlag = false;
    
var nodeSelected;
    
var mgr;
    
return  {
        init : 
function() {
            
if(!mgr) {
                Ext.Msg.alert("
警告提示","请先通过NavTree.setMgr()设置mgr");
                
return;
            }
            
if(!loader) {
                loader = 
new Ext.tree.TreeLoader( {
                    url : basePath + '/treeAction!jsonData.action'
                });
                loader.on('beforeload', 
function(treeloader, node)  {
                    treeloader.baseParams = 
{
                        id : node.id,
                        method : 'tree'
                    };
                }, 
this);
            }
            
if(!root) {
                root = 
new Ext.tree.AsyncTreeNode( {
                    id : '1',
                    text : "BruceLeey's ExtTree"
                });
            }
            
if(!nav) {
                nav = 
new Ext.tree.TreePanel( {
                    title : "
左部导航",
                    width : 232,
                    autoScroll : 
true,
                    animate : 
true,
                    loader : loader,
                    root : root,
                    enableDD : 
true,
                    listeners : 
{
                        'click' : 
function(node, event)  {
                            
if (node.isLeaf())  {
                                
// 为叶子节点时,点击不进入链接
                                //event.stopEvent();
                                //alert(node.url);
                                 //window.open('http://www.google.com');
                            }
                        }
                    }
                });
                
// 添加右键菜单
                nav.on("contextmenu", this.showTreeMenu);
                
// 当节点文本改变时触发事件
                nav.on("textchange", function(node, newText, oldText)  {
                    
if (!titleChangeFlag && newText != oldText)  {
                        mgr.ajaxModifyTitle(node.id, newText, 
function(success)  {
                            
                                
                            
                        });
                    }
                });
                
// 当节点移动时触发事件
                nav.on("movenode", function(tree, node, oldParent, newParent, index)  {
                    mgr.ajaxMoveNode(node.id, oldParent.id, newParent.id, index);
                });
                
// 当节点删除时触发事件
                nav.on("remove", function(tree, parentNode, node)  {
                    
if (removeFlag)  {
                        
                        mgr.ajaxRemoveParentById(node.id);
                    }
                });
            }
            
if(!navEditor) {
                navEditor = 
new Ext.tree.TreeEditor(nav,  {
                    allowBlank : 
false,
                    ignoreNoChange : 
true,
                    blankText : '
标题不能为空',
                    selectOnFocus : 
true
                });
            }
            
this.setLeafMenu();
            
this.setDirMenu();
        },
        setMgr : 
function(manager) {
            mgr = manager;
        },
        getMgr : 
function() {
            
return mgr;
        },
        setLeafMenu: 
function() {
            
// 设置叶子菜单
            if(!leafMenu) {
                leafMenu = 
new Ext.menu.Menu( {
                    items : [
{
                        text : "
修改标题",
                        handler : 
function()  {
                            navEditor.triggerEdit(nodeSelected);
                        }
                    }, "-", 
{
                        text : "
编辑",
                        handler : 
function()  {
                            FormEditWin.showEditLeafWin(nodeSelected);
                        }
                    }, "-", 
{
                        text : "
删除",
                        handler : 
this.delTreeItemComfirm
                    }]
                });
            }
        },
        setDirMenu: 
function() {
            
// 设置目录菜单
            if(!dirMenu) {
                dirMenu = 
new Ext.menu.Menu( {
                    items : [
{
                        text : "
修改标题",
                        handler : 
function()  {
                            navEditor.triggerEdit(nodeSelected);
                        }
                    }, "-", 
{
                        text : "
编辑",
                        handler : 
function()  {
                            FormEditWin.showEditDirWin(nodeSelected);
                        }
                    }, "-", 
{
                        text : "
添加叶子节点",
                        handler : 
function()  {
                            FormEditWin.showAddLeafWin(nodeSelected);
                        }
                    }, "-", 
{
                        text : "
添加目录节点",
                        handler : 
function()  {
                            FormEditWin.showAddDirWin(nodeSelected);
                        }
                    }, "-", 
{
                        text : "
删除",
                        handler : 
this.delTreeItemComfirm
                    }]
                });
            }
        },
        showTreeMenu : 
function(node, e) {
            nodeSelected = node;
            nodeSelected.select();
            
if (node.isLeaf())  {
                
// 显示叶子节点菜单
                leafMenu.showAt(e.getPoint());
            } 
else  {
                
// 显示目录节点菜单
                dirMenu.showAt(e.getPoint());
            }
        },
        delTreeItemComfirm : 
function() {
            Ext.Msg.confirm("
确认删除", "确定要删除所选节点吗?", function(btn)  {
                
if (btn == "yes")  {
                    NavTree.delTreeItem();
                }
            });
        },
        delTreeItem : 
function() {
            
if (nodeSelected != nav.getRootNode())  {
                removeFlag = 
true;
                nodeSelected.remove();
                removeFlag = 
false;
            } 
else  {
                Ext.Msg.alert("
警告", "不能删除树的根节点!");
            }
        },
        show : 
function() {
            nav.render(Ext.getBody());
            nav.getRootNode().toggle();
        }
    }
}();

// 文档加载完毕执行
Ext.onReady(function() {
    Ext.BLANK_IMAGE_URL = "../scripts/ext/resources/images/default/s.gif";
    
if(typeof(TreeDWR)=="undefined") {
        Ext.Msg.alert("
警告提示","请先设置DWR Spring加载错误!");
    }
else {
        NavTree.setMgr(TreeDWR);
        NavTree.init();
        NavTree.show();
    }
});

 展示代码:

 


<% @ page contentType="text/html;charset=UTF-8"%>
<html>
    
<head>
        
<title>
导航控制</title>
        
<link rel="stylesheet" type="text/css"
            href
="../scripts/ext/resources/css/ext-all.css">
        
<script type="text/javascript"
            src
="../scripts/ext/adapter/ext/ext-base.js"></script>
        
<script type="text/javascript" src="../scripts/ext/ext-all.js"></script>
        
<script type="text/javascript" src="../dwr/engine.js"></script>
        
<script type="text/javascript" src="../dwr/util.js"></script>
        
<script type="text/javascript" src="../dwr/interface/TreeDWR.js"></script>
        
<script type="text/javascript"
            src
="../scripts/treedemo/console-index.js"></script>
    
</head>
    
<body>
    
</body>
</html>

posted on 2011-11-24 17:14  不过是技术  阅读(2678)  评论(1编辑  收藏  举报