var myChart;
// 基于准备好的dom，初始化echarts实例
var dChart = echarts.init(document.getElementById('main3'));
// 指定图表的配置项和数据
function dFun(dateList) {
    dChart.setOption({
        title: {
            text: 'SALES BY CATEGORY',
            left: 'center'
        },
        tooltip: {
            trigger: 'item',
            formatter: '{a} <br/>{b} : {c} ({d}%)'
        },
        // legend: {
        //     orient: 'vertical',
        //     left: 'left',
        //     data: ['直接访问', '邮件营销', '联盟广告', '视频广告', '搜索引擎']
        // },
        series: [
            {
                name: '类目',
                type: 'pie',
                radius: '55%',
                center: ['50%', '60%'],
                data: dateList,
                emphasis: {
                    itemStyle: {
                        shadowBlur: 10,
                        shadowOffsetX: 0,
                        shadowColor: 'rgba(0, 0, 0, 0.5)'
                    }
                }
            }
        ]

    });
}

function queryMonthly(){
    var startDate = document.getElementById("startDate").value;
    var endDate = document.getElementById("endDate").value;

    var param = {
        startDate:startDate,
        endDate:endDate
    };
    // 折线图
    $.ajax({
        url: "../monthly/salesByCategory",
        data: param,
        contentType:"application/x-www-form-urlencoded",
        type: 'POST',
        success: function(data) {
            console.log(JSON.stringify(data.list))
            dFun(data.list);

        },
    });

}