JS highcharts动态柱状图原理及实现
cuisuqiang 人气:0实现一个柱状图，这个柱状图的高度在不停的刷新，效果如下：
官网是没有动态刷新的示例的，由于需要我查看了其源码，并根据之前示例做出了动态柱状图的效果，希望对同学们有用！
看一下代码：
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<html>
<head>
<title>Highcharts Example</title>
<script language="javascript" type="text/javascript" src="jquery.min.js"></script>
<script language="javascript" type="text/javascript" src="highcharts.js"></script>
<script language="javascript" type="text/javascript" src="exporting.js"></script>
<script type="text/javascript">
var chart;
$(document).ready(function() {
chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
type: 'column',
events: {
load: function() {
// set up the updating of the chart each second
var series = this.series[0];
setInterval(function() {
var data = [];
data.push(['Apples', Math.random()]);
data.push(['Oranges', Math.random()]);
data.push(['Pears', Math.random()]);
data.push(['Grapes', Math.random()]);
data.push(['Bananas', Math.random()]);
series.setData(data);
}, 2000);
}
}
},
title: {
text: '<b>Java小强制作</b>'
},
xAxis: {
categories: ['Apples', 'Oranges', 'Pears', 'Grapes', 'Bananas']
},
yAxis: {
min: 0,
title: {
text: '当前产值'
},
stackLabels: {
enabled: true,
style: {
fontWeight: 'bold',
color: (Highcharts.theme && Highcharts.theme.textColor) || 'gray'
}
}
},
legend: {
align: 'right',
x: -100,
verticalAlign: 'top',
y: 20,
floating: true,
backgroundColor: (Highcharts.theme && Highcharts.theme.legendBackgroundColorSolid) || 'white',
borderColor: '#CCC',
borderWidth: 1,
shadow: false
},
tooltip: {
formatter: function() {
return '<b>'+ this.x +'</b><br/>'+
this.series.name +': '+ this.y +'<br/>'+
'Total: '+ this.point.stackTotal;
}
},
plotOptions: {
column: {
stacking: 'normal',
dataLabels: {
enabled: true,
color: (Highcharts.theme && Highcharts.theme.dataLabelsColor) || 'white'
}
}
},
series: [{
name: 'John',
data: [5, 3, 4, 7, 2]
}]
});
});
</script>
</head>
<body>
<div id="container" style="width: 800px;height: 400px"></div>
</body>
</html>
同样，绘制这个图需要的也是双维数组，我尝试了几个方法，使用 series.setData(data); 可是实现数据的重新指定！
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