//数据库数据的读取，读取数据后数据格式的转换，还有highchart数据源的配置，伤透了脑筋。
anyway，最终开张了。哈哈！
数据库连接:conn_orcale.php
<?php
$dbconn=oci_connect("dnc-local","dnc-local","orcl")or die("数据库连接错误");
?>
读取数据:device_query.php
<?php
require 'conn_orcale.php';
$sql = "select * from xiaolv_month";
$query = oci_parse($dbconn,$sql);
oci_execute($query);
<span style="color:#ff0000;">while( $a = oci_fetch_array($query))
{
$b[] = intval($a[1]);
}
$data= json_encode($b);</span>
oci_close($dbconn);
?>
或
<?php
require 'conn_orcale.php';
$sql = "select month,xiaolv from xiaolv_month";
$query = oci_parse($dbconn,$sql);
<span style="color:#ff0000;">$b=array();
while( $a = oci_fetch_array($query))
{
array_push($b,intval($a[1]));
}
echo json_encode($b);</span>
oci_close($dbconn);
?>
使用Highcharts生成折线图:Test.php
<?php
require 'device_query.php';
?>
<html>
<head>
<title>hello mnmlist!</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script type="text/javascript" src="js/jquery.min.js"></script>
<script type="text/javascript" src="js/highcharts.js"></script>
<script type="text/javascript" src="js/themes/gray.js"></script>
<script type="text/javascript" src="js/json_parse.js"></script>
<script type="text/javascript">
$(function () {
$('#mnmlist').highcharts({
title: {
text: 'Monthly Average Temperature',
x: -20 //center
},
subtitle: {
text: 'Source: WorldClimate.com',
x: -20
},
xAxis: {
categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun','Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
},
yAxis: {
title: {
text: 'Temperature (°C)'
},
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
},
tooltip: {
valueSuffix: '°C'
},
legend: {
layout: 'vertical',
align: 'right',
verticalAlign: 'middle',
borderWidth: 0
},
<span style="color:#ff0000;">series: [{
name: 'xiaolv',
data: <?
php echo $data;?>
}]</span>
});
});
</script>
</head>
<body>
<p><?
php echo $data."\n";?></p>
<div id="mnmlist" style="min-width:800px;height:400px"></div>
</body>
</html>
正能量。有图有真相。
时间： 2024-10-01 03:44:52