S2SH整合下的动态树(w��i)(非Ajax)

BruceLeey — Fri, 29 May 2009 05:32:00 GMT

Dtree是个非常��单易用的JS�c�d��Q�封装了JS�Ҏ(gu��)��(w��i)型结构的一些复杂操作，其简单易用的API能��新手��利的完成动态树(w��i)�Q�下载地址为：(x��)http://destroydrop.com/javascripts/tree/
本文�l�合Struts2.X�Q�Spring2.0�Q�Hibernate3.0整合使用�Q�数据库为简单�v见��用MySQL�Q�表�l�构的设计是�Ҏ(gu��)��Dtree的结构来的，Dtree基本数据字段如下:

id	Number	Unique identity number.
pid	Number	Number refering to the parent node. The value for the root node has to be -1.
name	String	Text label for the node.
url	String	Url for the node.
title	String	Title for the node.
target	String	Target for the node.
icon	String	Image file to use as the icon. Uses default if not specified.
iconOpen	String	Image file to use as the open icon. Uses default if not specified.
open	Boolean	Is the node open.

SQL脚本如下�Q?br />

create database exercise;
use database exercise;
create table dtreedemo01(
   id varchar(50) primary key,
   pid varchar(50),
   name varchar(50),
   url  varchar(50),
   title varchar(50),
   target varchar(50),
   icon varchar(50),
   iconopen varchar(50),
   opened varchar(50)
);

insert into dtreedemo01 values('0','-1','Root','javascript: void(0);',null,null,NULL,NULL,NULL);
insert into dtreedemo01 values('00','0','音乐','javascript: void(0);',null,null,NULL,NULL,NULL);
insert into dtreedemo01 values('0001','00','轻金�?/span>',null,null,null,NULL,NULL,NULL);
insert into dtreedemo01 values('0002','00','重金�?/span>',null,null,null,NULL,NULL,NULL);
insert into dtreedemo01 values('0003','00','R&B',null,null,null,NULL,NULL,NULL);
insert into dtreedemo01 values('01','0','体育','javascript: void(0);',null,null,NULL,NULL,NULL);
insert into dtreedemo01 values('0101','01','��球',null,null,null,NULL,NULL,NULL);
insert into dtreedemo01 values('0102','01','��球',null,null,null,NULL,NULL,NULL);
insert into dtreedemo01 values('0103','01','体操',null,null,null,NULL,NULL,NULL);
insert into dtreedemo01 values('02','0','��食','javascript: void(0);',null,null,NULL,NULL,NULL);
insert into dtreedemo01 values('0201','02','中国�?/span>',null,null,null,NULL,NULL,NULL);
insert into dtreedemo01 values('020101','0201','青椒找肉',null,null,null,NULL,NULL,NULL);
insert into dtreedemo01 values('0202','02','日本�?/span>',null,null,null,NULL,NULL,NULL);
insert into dtreedemo01 values('020201','0202','沛_��烤鱼',null,null,null,NULL,NULL,NULL);
insert into dtreedemo01 values('0203','02','法国�?/span>',null,null,null,NULL,NULL,NULL);
insert into dtreedemo01 values('020301','0203','爆炒蜗牛',null,null,null,NULL,NULL,NULL);

接下来就是三个框架的整合了，因�ؓ(f��)此文只是介绍一下Dtree的��用，所以整合的�l�节��׃��说了�Q�直接看展示��面的代�?

<%@ page language="java" import="java.util.*" pageEncoding="gbk"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<html>
    <head>
        <title>DynaTreeDemotitle>
        <link rel="StyleSheet" href="css/dtree.css" type="text/css" />
        <script type="text/javascript" src="js/dtree.js">script>
    head>
    <body>
        <table width="180">
            <tr>
                <td height="300" valign="top">

                    <script type="text/javascript">
                            tree = new dTree('tree');
                        tree.config.folderLinks=false;
                        tree.config.useCookies=false;
                         <s:iterator value="#request.treeList">
                        tree.add(""id"/>",
                            ""pid" />",
                            ""name" />",
                            ""url" />",
                            ""title" />",
                            ""targer" />",
                            ""icon" />");
                         s:iterator>
                          document.write(tree);
                        script>

                td>
            tr>
        table>
    body>
html>

上文中的treeList为在后端控制器获取到的数据，在JSP��面中��用Struts2标签�q�代集合实现javascript与S2的交互�?br /> 效果如图�Q?br />
�q�种实现�Ҏ(gu��)��的一个缺�Ҏ(gu��)��Q�当有大量的数据时也是一�ơ性查询出来传递到Dtree��装好的递归�Ҏ(gu��)��中，影响效率.
去除了S2SH的Jar�Q�下载地址�Q?a href="/Files/Mars/dtreedemo.rar">http://www.aygfsteel.com/Files/Mars/dtreedemo.rar

BruceLeey 2009-05-29 13:32 发表评论

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S2SH整合下的动态树(w��i)(非Ajax)