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:
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<%@ 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>
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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!
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://www.iteye.com/blog/cuisuqiang-1555452