2009年12月18日 星期五

實作Ext grid,data store以Server side XML file方式程現


開發環境:
IDE:MyEclipse6.6GA
Web Server:Tomcat 6.0.20
Database:MySql 5.1.36
MVC:Struts2.1.8
FrameWork:Spring2.0,Hibernate3.2
Client UI:Ext2.3.0

一、建立grid頁面(grid2.jsp):
<%@ 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>My JSP 'combox.jsp' starting page</title>

    

 <meta http-equiv="pragma" content="no-cache">

 <meta http-equiv="cache-control" content="no-cache">

 <meta http-equiv="expires" content="0">    

 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

 <meta http-equiv="description" content="This is my page">

 <!--

 <link rel="stylesheet" type="text/css" href="styles.css">

 -->

 <link rel="stylesheet" type="text/css" href="extjs/resources/css/ext-all.css">

 <link rel="stylesheet" type="text/css" href="css/onReady.css">

 <script type="text/javascript" src="extjs/adapter/ext/ext-base.js"></script>

 <script type="text/javascript" src="extjs/ext-all.js"></script>

 <script type="text/javascript" src="extjs/ext-lang-zh_TW.js"></script> 

 <script type="text/javascript">

 <!--

  Ext.onReady(function(){

   
   var store = new Ext.data.Store({

    url: 'html/grid0.xml',

    reader: new Ext.data.XmlReader({record:'row',id:'id'}, [

     'id',

     'coverthumb',

     'title',

     'director',

     {name: 'released', type: 'date', dateFormat: 'Y-m-d'},

     'genre',

     'tagline',

     {name: 'price', type: 'float'},

     {name: 'available', type: 'bool'}

    ])

   });

   store.load();

   //Combining two columns function

   function title_tagline(val, x, store){

    return '<b>'+val+'</b><br>'+store.data.tagline;

   }

   //Generating HTML and graphics

   function cover_image(val){

    return '<img src="images/'+val+'.jpg" width="50%" height="50%">';

   }

   // add your data store here

   var grid = new Ext.grid.GridPanel({

    //renderTo: document.body,

    renderTo:'example-grid',

    frame:true,

    title: 'Movie Database',

    height:200,

    width:550,

    stripeRows:true,

    store: store,

    //Defining a Grids column model and want to display column

    columns: [

    {header: "Cover", dataIndex: 'coverthumb',renderer:cover_image},

    //Combining two columns

    {header: "Title", dataIndex: 'title',renderer:title_tagline},

    {header: "Director", dataIndex: 'director'},

    //Client-side sorting

    {header: "Released", dataIndex: 'released',sortable:true,

    renderer: Ext.util.Format.dateRenderer('m/d/Y')},

    {header: "Genre", dataIndex: 'genre'},    

    {header: "Price",dataIndex: 'price'},

    //setup hidden column

    {header: "Tagline", dataIndex: 'tagline',hidden:true}

    ]

   });

  });

 //-->

 </script>

  </head>

  

  <body><br>

   <center>

    <h3><font color="red">Movie Database Grid</font></h3><br>

   </center>

   <table align="center" border="0">

    <tr>

     <td>

     <div id="example-grid"></div>

    <td>

   </tr>

  </table>

  </body>

</html>


二、Server side xml file(grid0.xml):
<?xml version="1.0" encoding="UTF-8"?>

<dataset>

<row>

<id>1</id>

<title>Office Space</title>

<director>Mike Judge(喬治麥克)</director>

<released>1999-02-19</released>

<genre>1</genre>

<tagline>Work Sucks</tagline>

<coverthumb>OfficeSpace</coverthumb>

<price>19.95</price>

<active>1</active>

</row>

<row>

<id>3</id>

<title>Super Troopers</title>

<director>Jay Chandrasekhar</director>

<released>2002-02-15</released>

<genre>1</genre>

<tagline>Altered State Police</tagline>

<coverthumb>SuperTroopers</coverthumb>

<price>14.95</price>

<active>1</active>

</row>

//...more rows of data removed for readability...//

</dataset>


三、測試結果:
1.http://localhost:8080/ExtStudy/Basic/grid2.jsp


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