在Java中使用Highcharts+Ajax+Json生成动态饼图

   	<script type="text/javascript">
		var chart;
$(function () {
	
	$(document).ready(function() {
        chart = new Highcharts.Chart({
	        chart: {
	        	renderTo: 'container',
	            plotBackgroundColor: null,
	            plotBorderWidth: null,
	            plotShadow: false
	        },title: {
	        	text: '教师绩效分析图'
	        },
	        tooltip: {
	    	    pointFormat: '{series.name}: <b>{point.percentage:.1f}%</b>'
	        },
	        plotOptions: {
	            pie: {
	                allowPointSelect: true,
	                cursor: 'pointer',
	                dataLabels: {
	                    enabled: true,
	                    color: '#000000',
	                    connectorColor: '#000000',
	                    format: '<b>{point.name}</b>: {point.percentage:.1f} %'
	                },
                    showInLegend: true
	            }
	        },
	        series: [{
	            type: 'pie',
	            name: '所占比例',
	        }]
	    });
	});
	  //调用查询，加载数据
	  chaxun();
});
	function chaxun(){
		var arr = [];
		var param = $('#groupS').val();
		   if($('#departmentS').val()!="全部"){
			   param += "&department="+$('#departmentS').val();
		   }
		   if($('#typeS').val()!="全部"){
			   param += "&type="+$('#typeS').val();
		   }
		$.ajax({
		    type:'get',
		    url:'/SX2/WorkloadAnalysis/getData?group='+param,//请求数据的地址
		    beforeSend:function(XMLHttpRequest){ 
				   $('#loading').show();
				   $('#contentDIV').hide();
		           $('#loading').html("<img src='<%=path%>/image/loading.gif' />"); 
		       }, 
			 success: function(data){
				$('#contentDIV').show();
				$('#loading').hide();
				
		    	$(data.data).each(function(index,item){
		    		arr.push([item.name,item.num]);
		    	});
		       chart.series[0].setData(arr);//数据填充到highcharts上面 
		    },
		    error:function(e){
		    	alert("不好意思，请要访问的图标跑到火星去了。。。。");
		    } 
		});
	};
		</script>

	@RequestMapping("getData")
	@ResponseBody
	public Map<String,Object> getData(Integer department,Integer group,String type){
		Map<String,Object> map = new HashMap<String,Object>();
		map.put("title", "教师绩效考核结果分析");
		HashMap<String,Object> param = new HashMap<>();
		param.put("department", department);
		param.put("group", group);
		param.put("type", type);
		List<Map<String,Object>> list = ws.selectWorkloadAnalysis(param);
		map.put("data",list);
		return map;
	}

{"title":"教师绩效考核结果分析","data":[{"num":0,"name":"0-20分"},{"num":1,"name":"21-40分"},{"num":0,"name":"41-60分"},{"num":0,"name":"61-80分"},{"num":0,"name":"81-100分"}]}