实时任务提示 ajax实时任务提示功能的实现代码

项目代码结构见 我之前写的[EXT/FCKEditor 集成 -- AJAX UI -- 一种web开发的新的思维,要及时转换思想]一文.
中的
├─taskofpig
│ ├─Controller
│ ├─Dao
│ ├─js
│ ├─music
│ ├─tpl
│ ├─tpl_c
│ └─_log
项目代码如下:
db.sql
SET FOREIGN_KEY_CHECKS=0;
-- ----------------------------
-- Table structure for task
-- ----------------------------
CREATE TABLE `task` (
`id` int(11) NOT NULL,
`title` varchar(100) collate utf8_unicode_ci NOT NULL,
`desc` text collate utf8_unicode_ci,
`date` datetime NOT NULL,
`created` int(11) default NULL,
`updated` int(11) default NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
-- ----------------------------
-- Table structure for task_seq
-- ----------------------------
CREATE TABLE `task_seq` (
`id` int(11) NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
/ucren/taskofpig/index.php
<?php
//设置正确的时区
date_default_timezone_set("Asia/Shanghai");
define('TASKOFPIG_DIR',dirname(__FILE__)) ;
require('../phplibs/FLEA/FLEA.php');
// 对$GLOBALS[G_FLEA_VAR]['CLASS_PATH'] 进行配置
FLEA::import(TASKOFPIG_DIR); //将当前目录加入到环境变量中
FLEA::loadAppInf('appConfig.php') ; //将配置文件单独分出来,容易维护
FLEA::init();
// 由于 FLEA_Db_TableDataGateway 并不是自动载入的，因此需要明确载入
FLEA::loadClass('FLEA_Db_TableDataGateway');
FLEA::runMVC();
?>
/ucren/taskofpig/appConfig.php
<?php
// 对 $GLOBALS[G_FLEA_VAR]['APP_INF'] 进行配置
return array(
'dispatcher' => 'FLEA_Dispatcher_Simple' , //定制调度器 FLEA_Dispatcher_Auth
'controllerAccessor' => 'ctl' ,
'actionAccessor' => 'act' ,
'view' => 'FLEA_View_Smarty', //定制视图
'viewConfig' => array(
'smartyDir' => '../phplibs/Smarty',
'template_dir' => './tpl',
'compile_dir' => './tpl_c',
'left_delimiter' => '<%',
'right_delimiter' => '%>',
'debugging' => false
),
'dbDSN' => array( //定制数据库连接参数
'driver' => 'mysql',
'host' => 'localhost',
'login' => 'dbuser',
'password' => 'dbpass',
'database' => 'dbname' ,
'charset ' => 'utf8'
) ,
'logFileDir' => './log' , //定制日志
'logFilename' => 'task_admin.log'
);
?>
/ucren/taskofpig/Dao/Table.php
<?php
//生气猪的任务计划表
class Dao_TaskTable extends FLEA_Db_TableDataGateway
{
// 指定数据表名称
var $tableName = 'task';
// 指定主键字段名
var $primaryKey = 'id';
}
?>
/ucren/taskofpig/Controller/Default.php
<?php
FLEA::loadFile('Dao_Table.php',true) ;
FLEA::loadFile('FLEA_Ajax_JSON.php',true) ;
class Controller_Default extends FLEA_Controller_Action
{
var $smarty ;
function Controller_Default()
{
$this->smarty = $this->_getView();
$this->smarty->assign('sitename','任务计划表 -- 生气猪') ;
$this->smarty->assign('opname','任务列表') ;//缺省应该在子模块中更改值
}
function actionIndex()
{
$this->toModulePage(); //缺省显示任务列表页
}
//定义一个函数用于调用FCKeditor
function call_fck($input_name,$input_value,$w='800',$h='400')
{
include_once '../fckeditor/fckeditor.php';
$fcked = new FCKeditor($input_name) ;
$fcked->BasePath = '../fckeditor/';
$fcked->ToolbarSet = 'Default' ; //工具栏设置
$fcked->InstanceName = $input_name ;
$fcked->Width = $w;
$fcked->Height = $h;
$fcked->Value = $input_value;
$fck_area = $fcked->CreateHtml();
$this->smarty->assign('fck_area',$fck_area);
unset($fck_area) ;
unset($fcked) ;
}
function _showPage($tpl='taskofpig.main.html')
{
$this->smarty->display($tpl);
}
function actionAdd()
{
$this->addTask();
}
function actionUpdate()
{
$this->updateTask();
}
function deleteTask($id){
$row = array('id'=>$id);
$thisDao = & new Dao_TaskTable() ;
$status = $thisDao->remove($row); //返回boolean值
unset($thisDao);
return $status ;
}
function listTask()
{
$thisDao = & new Dao_TaskTable() ;
$rows = $thisDao->findAll(); //二维数组
foreach($rows as &$row) //注意这里要传引用
{
$row['desc'] = mb_substr($row['desc'],0,40,'UTF-8');
}
$this->smarty->assign('rowSet',$rows);
$this->_showPage();
}
function addTask()
{
$thisDao = & new Dao_TaskTable() ;
$row = array(
'title' => $_REQUEST['title'],
'desc' => $_REQUEST['desc'],
'date' => $_REQUEST['date']
);
$commitId = $thisDao->create($row);
unset($thisDao);
echo "成功添加新任务";
redirect( url("Default"),1) ;
}
function updateTask()
{
$thisDao = & new Dao_TaskTable() ;
$row = array(
'id' => $_REQUEST['id'],
'title' => $_REQUEST['title'],
'desc' => $_REQUEST['desc'],
'date' => $_REQUEST['date']
);
$commitId = $thisDao->update($row);
unset($thisDao);
echo "成功更新任务";
redirect( url("Default"),1) ;
}
function queryTask($id){
$thisDao = & new Dao_TaskTable() ;
$row = $thisDao->find(array('id'=>$id));
unset($thisDao);
return $row ;
}
function queryTaskForDate($date=null)
{
$thisDao = & new Dao_TaskTable() ; //'2008-08-17 07:42:29'
$row = $thisDao->find(array('date'=>date('Y-m-d H:i:s')));
unset($thisDao);
if (!empty($row))
{
$jsonobj = new Services_JSON();
echo $jsonobj->encode($row);
}
else
die(date('Y-m-d H:i:s'));
}
//任务流转控制方法
function toModulePage()
{
if ($_REQUEST['op'] == 'search') {
$this->queryTaskForDate();
}
else if ($_REQUEST['op'] == 'add') {
$this->smarty->assign('opname','添加新任务') ;
$this->smarty->assign('taskTime',date('Y-m-d H:i:s')) ;
$this->call_fck('desc','');
$this->_showPage('taskofpig.add.html');
}
else if ($_REQUEST['op'] == 'del') {
if ( isset($_REQUEST['id']) && is_numeric($_REQUEST['id']) )
$status = $this->deleteTask($_REQUEST['id']) ;
$this->listTask();
}
else if ($_REQUEST['op'] == 'edit') {
if ( isset($_REQUEST['id']) && is_numeric($_REQUEST['id']) ){
$row = $this->queryTask($_REQUEST['id']) ;
}
$this->call_fck('desc',$row['desc']);
unset($row['desc']) ;
$this->smarty->assign('rowSet',$row);
$this->smarty->assign('opname','修改任务') ;
$this->_showPage('taskofpig.edit.html');
}
else { //列表
$this->listTask();
}
}
}
?>

/ucren/taskofpig/tpl/taskofpig.main.html
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title><%$sitename%> -- <%$opname%></title>
<script type="text/javascript" src="/ucren/prototype/prototype.js"></script>
<script type="text/javascript" src="/ucren/json/json_parse.js"></script>
<script type="text/javascript" src="js/tasktip.js"></script>
</head>
<body>
<bgsound>
<div>
<span id='task_attime'></span>
</div>
<hr>
<p>
<span onClick="document.location='index.php?op=add'">添加</span> |
<span onClick="document.location='index.php?op=search'">查看任务提示</span> |
</p>
<hr>
<hr>
<table width="90%" border="1" cellspacing="1" bgcolor="#cfdadc">
<tr bgcolor="#e8edec" align="center">
<td><b>ID</b></td>
<td><b>主题</b></td>
<td><b>任务内容</b></td>
<td><b>任务提示时间</b></td>
<td colspan="2"><b>管理</b></td>
</tr>
<%section name=rowIndex loop=$rowSet%>
<tr align="center">
<td><%$rowSet[rowIndex].id%></td>
<td><%$rowSet[rowIndex].title%></td>
<td><%$rowSet[rowIndex].desc%></td>
<td><%$rowSet[rowIndex].date%></td>
<td onClick="document.location='index.php?op=edit&id=<%$rowSet[rowIndex].id%>'"><b>编辑</b></td>
<td onClick="document.location='index.php?op=del&id=<%$rowSet[rowIndex].id%>'"><b>删除</b></td>
</tr>
<%/section%>
</table>
</body>
</html>
/ucren/taskofpig/tpl/taskofpig.edit.html
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title><%$sitename%> -- <%$opname%></title>
</head>
<body bgcolor="e8edec">
<div align="center">
<form method="post" action="index.php?&act=update&id=<%$rowSet.id%>">
<table width="80%" border="1" cellspacing="1" bgcolor="#cfdadc">
<tr bgcolor="e8edec">
<td>任务标题: <input name="title" type="text" size="80" value="<%$rowSet.title%>"></td>
</tr>
<tr bgcolor="e8edec">
<td>提示时间: <input name="date" type="text" size="40" value="<%$rowSet.date%>"></td>
</tr>
<tr bgcolor="e8edec">
<td class="forumRow">任务内容<%$fck_area%></td>
</tr>
</table>
<input type="submit" value="提交">    
<input type="button" value="返回" onclick="document.location='index.php'">
</form>
</div>
</body>
</html>
/ucren/taskofpig/tpl/taskofpig.add.html
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title><%$sitename%> -- <%$opname%></title>
</head>
<body bgcolor="e8edec">
<div align="center">
<form method="post" action="index.php?&act=add">
<table width="80%" border="1" cellspacing="1" bgcolor="#cfdadc">
<tr bgcolor="e8edec">
<td>任务标题: <input name="title" type="text" size="80" ></td>
</tr>
<tr bgcolor="e8edec">
<td>提示时间: <input name="date" type="text" size="40" value="<%$taskTime%>"></td>
</tr>
<tr bgcolor="e8edec">
<td class="forumRow">任务内容<%$fck_area%></td>
</tr>
</table>
<input type="submit" name="Submit" value="提交">    
<input type="reset" name="Submit3" value="重设">
</form>
</div>
</body>
</html>
/ucren/taskofpig/js/tasktip.js
//任务提示脚本实现,依赖于/ucren/prototype/prototype.js
var TaskTipAjax = function (){
this.desc = '按一定的时间间隔查询数据库中到期的事件信息,并给出提示[打开新窗口,播放一段音乐]' ;
}
//通过Ajax按时查询和提示
TaskTipAjax.prototype.doAction = function(obj)
{
var myAjax = new Ajax.Request(
'index.php?op=search' ,
{
method: 'get' ,asynchronous: true ,
onComplete: obj.showResponse
}
) ;
}
TaskTipAjax.prototype.showResponse = function (response)
{
if (response.responseText != '')
{
//此方法在/ucren/json/json_parse.js中定义
//task_obj是一个对象
//task_obj.id task_obj.title task_obj.desc task_obj.date
var task_obj = json_parse(response.responseText);
var newwin=window.open('','任务报时器','height=200, width=600,toolbar=0,menubar=0,location=0, status=0');
newwin.opener = null // 防止代码对论谈页面修改
//防止页面内容重复
if( typeof(newwin.document.body) != "undefined")
newwin.document.body.innerHTML = "";
newwin.document.write("<html><body><bgsound src='music/moonlight.mp3' autostart=true loop=infinite>");
newwin.document.write('<h1>任务报时器</h1><br/>');
newwin.document.write('<table border="1">');
newwin.document.write('<tr>');
newwin.document.write('<td width="33" bgcolor="#E8E8E8">ID</td>');
newwin.document.write('<td width="33" bgcolor="#E8E8E8">标题</td>');
newwin.document.write('<td width="33" bgcolor="#E8E8E8">描述</td>');
newwin.document.write('<td width="33" bgcolor="#E8E8E8">时间</td>');
newwin.document.write('</tr>');
newwin.document.write('<tr>');
newwin.document.write('<td>'+ task_obj.id +'</td>');
newwin.document.write('<td>'+ task_obj.title +'</td>');
newwin.document.write('<td>'+ task_obj.desc +'</td>');
newwin.document.write('<td>'+ task_obj.date +'</td>');
newwin.document.write('</tr>');
newwin.document.write('</table>');
newwin.document.write("</body></html>");
//置顶
newwin.focus();
}
}
var obj = new TaskTipAjax();
setInterval("obj.doAction(obj)",1000) ;
/ucren/taskofpig/music/moonlight.mp3
这个音乐 可以自己改
上面的代码熟悉JAVA的应该都可以看懂,这里只是要阐述一个简单的设计方案,希望大家予以增加扩展功能,谢谢,发我邮件,或者留言.
我觉得软件开发最重要的是开发思路,至于用什么语言实现倒是其次了,(*^__^*) 嘻嘻……