PHP和mxml 实现FLASH 曲线图
MXML是一个可以让你在Adobe Flex中布局用户界面组件的一种XML语言,你也可以使用MXML声明来定义程序中的非可视化组件,安装好FLEX Development 后,你就可以轻松的结合PHP完成一个FLASH曲线图.
先从PHP入手:
FLEX 和PHP的交互最常用的就是和XML的交互,就是用PHP生成XML,然后用FLEX去读取并且显示,我们以XML的形式先写一个帐目详单的数据,代码如下:
header( "Content-Type: text/xml" );
$arr = array (
array ( 'day' => '01' , 'sum' => '153.1' ),
array ( 'day' => '02' , 'sum' => '882.86' ),
array ( 'day' => '03' , 'sum' => '456.9' ),
array ( 'day' => '04' , 'sum' => '717.7' ),
array ( 'day' => '05' , 'sum' => '255.1' ),
array ( 'day' => '06' , 'sum' => '533.1' )
);
$xml_return .= "<bills>" ;
foreach ( $arr as $use ){
$xml_return .= "<bill><sum>{$use['sum']}</sum><name>{$use['day']}</name></bill> " ;
} //开源代码phpfensi.com
$xml_return .= "</bills>" ;
echo $xml_return ;显示6个月的消费记录,$arr也可以是从数据库读出来的数据,这里只是作为一个例子,所以直接给一个数组赋值.
– < bills >
– < bill >
< sum > 153.1 </ sum >
< name > 01 </ name >
</ bill >
– < bill >
< sum > 882.86 </ sum >
< name > 02 </ name >
</ bill >
– < bill >
< sum > 456.9 </ sum >
< name > 03 </ name >
</ bill >
– < bill >
< sum > 717.7 </ sum >
< name > 04 </ name >
</ bill >
– < bill >
< sum > 255.1 </ sum >
< name > 05 </ name >
</ bill >
– < bill >
< sum > 533.1 </ sum >
< name > 06 </ name >
</ bill >
</ bills >Php部分就完成了,接下来是写MXML,实例代码如下:
<? xml version = "1.0" encoding = "utf-8" ?>
<? xml version = "1.0" encoding = "utf-8" ?>
< mx:Application xmlns:mx = "http://www.adobe.com/2006/mxml" layout = "absolute" creationComplete = "getaccount()" >
< mx:HTTPService id = "listRequest" url = "" useProxy = "false" method = "POST" >
< mx:request xmlns = "" > </ mx:request >
</ mx:HTTPService >
< mx:Script > <![CDATA[
import mx.rpc.events.ResultEvent;//引用ResultEvent类
public function getaccount():void{
listRequest.url='http://localhost/arr.php';
listRequest.send();
}
]]> </ mx:Script >
< mx:LineChart showDataTips = "true" clipContent = "false" x = "126" y = "10" id = "tongjitu" dataProvider = "{listRequest.lastResult.bills.bill}" width = "678" >
< mx:horizontalAxis >
< mx:CategoryAxis dataProvider = "{listRequest.lastResult.bills.bill}" categoryField = "name" title = "(日)" />
</ mx:horizontalAxis >
< mx:series >
< mx:LineSeries displayName = "每日消费" yField = "sum" xField = "name" />
</ mx:series >
</ mx:LineChart >
</ mx:Application >逐一解释一下:
Application //MXML应用程序开头
creationComplete= "getaccount()" //代表页面加载完成后 执行 getaccount函数
〈mx:HTTPService id= "listRequest" url= "" useProxy= "false" method= "POST" 〉
〈mx:request xmlns= "" 〉 〈/mx:request〉
〈/mx:HTTPService〉
//则是一个HTTP的请求，发送POST到一个PHP文件 去获取数据
mx:Script //MXML里面的脚本 都用 <mx:Script>包含进去下面分析下getaccount函数:
public function getaccount():void{
listRequest.url= 'http://localhost/arr.php' ;
listRequest.send();
}
//列出了 HTTPService 请求地址是 http://localhost/arr.php
//你同样也可以写成相对路径 比如 listRequest.url='./arr.php';
mx:LineChart //是一个 曲线 组件，我们可以直接拿来使用
dataProvider ：数据源：listRequest.lastResult.bills.bill
bills.bill 是XML里面的标签
mx:LineSeries displayName= "每日消费" yField= "sum" xField= "name"
//则定义了 横纵坐标的值。
//Sum name 就是XML里面的数据的标签
