Highcharts简单实现异步加载数据饼状图

1. 官方Demo的饼状图源码：

<html>
<head>
<meta charset="UTF-8" />
<title>Highcharts 教程 | 菜鸟教程(runoob.com)</title>
<script src="https://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script src="https://code.highcharts.com/highcharts.js"></script>
</head>
<body>
<div id="container" style="width: 550px; height: 400px; margin: 0 auto"></div>
<script language="JavaScript">
$(document).ready(function() {  
   var chart = {
       plotBackgroundColor: null,
       plotBorderWidth: null,
       plotShadow: false
   };
   var title = {
      text: '2014 年各浏览器市场占有比例'   
   };      
   var tooltip = {
      pointFormat: '{series.name}: <b>{point.percentage:.1f}%</b>'
   };
   var plotOptions = {
      pie: {
         allowPointSelect: true,
         cursor: 'pointer',
         dataLabels: {
            enabled: true,
            format: '<b>{point.name}</b>: {point.percentage:.1f} %',
            style: {
               color: (Highcharts.theme && Highcharts.theme.contrastTextColor) || 'black'
            }
         }
      }
   };
   var series= [{
      type: 'pie',
      name: 'Browser share',
      data: [
         ['Firefox',   45.0],
         ['IE',       26.8],
         {
            name: 'Chrome',
            y: 12.8
         },
         ['Safari',    8.5],
         ['Opera',     6.2],
         ['Others',   0.7]
      ]
   }];     
      
   var json = {};   
   json.chart = chart; 
   json.title = title;     
   json.tooltip = tooltip;  
   json.series = series;
   json.plotOptions = plotOptions;
   $('#container').highcharts(json);  
});
</script>
</body>
</html>

2. 根据上面的源码知道，我们要动态的给data属性添加数据，后台返回的数据：

[{"user_name":"tom","number":0.1},{"user_name":"jindou","number":0.2},{"user_name":"xiaoge","number":0.3},{"user_name":"heida","number":0.4}]

3. 修改源码，动态展示数据：

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<html>
<head>
<meta charset="UTF-8" />
<title>Highcharts 图形展示</title>
<script src="https://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script src="https://code.highcharts.com/highcharts.js"></script>
</head>
<body>
<div id="container" style="width: 550px; height: 400px; margin: 0 auto"></div>
<script type="text/javascript">
$(document).ready(function() {  
   var chart = {
       plotBackgroundColor: null,
       plotBorderWidth: null,
       plotShadow: false
   };
   var title = {
      text: '员工工资占比'   
   };      
   var tooltip = {
      pointFormat: '{series.name}: <b>{point.percentage:.1f}%</b>'
   };
   var plotOptions = {
      pie: {
         allowPointSelect: true,
         cursor: 'pointer',
         dataLabels: {
            enabled: true,
            format: '<b>{point.name}</b>: {point.percentage:.1f} %',
            style: {
               color: (Highcharts.theme && Highcharts.theme.contrastTextColor) || 'black'
            }
         }
      }
   };
   var series= [{
      type: 'pie',
      name: 'BiJiao',
     
   }];     
      
   var json = {};   
   json.chart = chart; 
   json.title = title;     
   json.tooltip = tooltip;  
   json.series = series;
   json.plotOptions = plotOptions;

    //官方例子就是这么写Ajax的，我也不懂 
    $.getJSON("/user/highcharts.do", function (data) {
	   
    	//属性名和前端所需要的属性名不一致，要对应。 
	    for(var item of data) {
		   item.name = item.user_name;
		   item.y = item.number;
	   } 
	   
    	//将查询到的Json数据添加到series中 
	   series[0].data = data;
    	//下面俩步是调试用的 
	   console.log(data);
	   console.log(json);
	   //启动绘制...
	   $('#container').highcharts(json);
	   });    
	});
</script>
</body>
</html>

4. 展示效果（截图的）：

Highcharts简单实现异步加载数据饼状图

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