ECharts使用总结归纳

UserNAME:你为什么写这篇文章？

My:最近项目中有统计报表的需求，使用了ECharts，“度娘”过程中东查西找太麻烦，自己写一篇加深印象，方便以后查阅。

辅助文档------>https://echarts.baidu.com/option.html     (里面有各种教程、配置项）

1.引用文件   https://www.echartsjs.com/download.html(我自己用的v4.2.1，我用到柱形、饼图、折线图，所有只用了 echartsmain.css、echarts.min.js、jquery.min.js这三个文件，看个人需求）

2. 为 ECharts 准备一个具备大小（宽高）的 DOM 并实现js代码

注意：由于var myChart1 = echarts.init(document.getElementById('main1'));里的echarts.init（）是JS的方法，所以不能使用jQuery的元素选择器

通过ajax调用获取数据

      <div id="main1" class="echars"></div>
                <div id="main2" class="echars"></div>
                <div id="main3" class="echars"></div>
 <script type="text/javascript">
   var myChart1 = echarts.init(document.getElementById('main1'));
            var myChart2 = echarts.init(document.getElementById('main2'));
            var myChart3= echarts.init(document.getElementById('main3));

 $.ajax({
                type: 'POST',
                url: "@Request.RawUrl",
                dataType: 'json',
                data: { TIME2: TIME2 }
            }).done(function (response) {

                var types = new Array;
                var values = new Array;
                for (var i = 0; response.Success == true && i < response.Model[0].TYPELIST.length; i++) {
                    types.push(response.Model[0].TYPELIST[i].NAME);
                    values.push(response.Model[0].TYPELIST[i].NAMECOUNT);
                }
                var labelOption = {
                    normal: {
                        fontSize: 34,
                    }
                };

  /*柱形图*/
                var option = {
                    color: ["rgb(30,144,255)"],
                    title:{
                        textStyle: {
                            fontSize:5,
                        }
                    },

                    tooltip: {
                        trigger: 'axis',
                        axisPointer: {
                            type: 'shadow'
                        },
                        textStyle: {
                            fontSize: 34,
                        }
                    },
                  grid: {
                        top: '10%',
                  },
                    xAxis: {
                        data: types,
                        axisLabel:{
                            fontSize: 34
                        }
                    },
                    yAxis: {
                        type: 'value',
                        axisLabel: {
                            fontSize: 34
                        }
                    },
                    series: [{
                        name: '上报数量',
                        type: 'bar',
                        data: values,
                        label: labelOption,
                    }]
                };
                /*饼图*/
               var option2 = {
                   color: ["rgb(0,206,209)", "rgb(30,144,255)"],
                    tooltip: {
                        trigger: 'item',
                        formatter: "{b} {c}: {d}%",
                        textStyle: {
                            fontSize: 32
                        }
                    },
                   legend: {
                       type: 'scroll',
                       orient: 'vertical',
                        bottom:'15%',
                       data: ['未完成', '完成'],
                        textStyle: {
                            fontSize: 34
                        }
                    },
                    series: [
                        {
                            name: ' ',
                            type: 'pie',
                            radius: '50%',
                            center: ['50%', '30%'],
                            data: [
                                {
                                    value: response.Model[0]["UNZONCOUNT"],
                                    name: '未完成',

                                },
                                {
                                    value: response.Model[0]["OKZONCOUNT"],
                                    name: '完成',

                                },
                            ],
                            label: {
                                normal: {
                                    show: true,
                                    position:'outside',
                                    textStyle: {
                                        fontSize:34
                                    }
                                },
                                emphasis: {
                                    show: true
                                }
                            },
                            lableLine: {
                                normal: {
                                    show: true,
                                },
                                emphasis: {
                                    show: true
                                }
                            }
                        }
                    ]
                };

补充：折现图（获取数据方法大同小异）

 $.ajax({
            type: 'POST',
                url: "@Request.RawUrl",
                dataType: 'json',
                data: {TIME2: TIME2 }
            }).done(function (response) {

                var types = new Array;
                var values = new Array;
                types.push(Object.keys(response.Model[0]["result"]));
                values.push(Object.values(response.Model[0]["result"]));

                var labelOption = {
                    normal: {
                        fontSize: 34,
                    }
                };

               types[0].splice(0,8);
               values[0].splice(0,8);

            /*折线图*/
            var option3= {

                title: {
                    textStyle: {
                        fontSize: 34,
                    }
                },

                tooltip: {
                    trigger: 'axis',
                    textStyle: {
                        fontSize: 34,
                    }
                },
                legend: { data: types[0] },
                grid: {
                    containLabel: true,

                },
                xAxis: {
                    type: 'category',
                    boundaryGap: false,
                    data: types[0],
                    axisLabel: {
                        fontSize: 24,
                        rotate:60
                    }
                },
                yAxis: {
                    type: 'value',
                    axisLabel: {
                        fontSize: 34
                    },
                    scale: true,
                },
                series: [{
                    name: '上报数量',
                    type: 'line',
                    data: values[0],
                    label: labelOption,
                    itemStyle: {
                        normal: {
                            color: '#436EEE',
                            lineStyle: {
                                color:'#436EEE'
                            }
                        }
                    }
                }]
            };

具体配置参数可参考 https://echarts.baidu.com/option.html#title

以下是最重要的！！！！！柱形和饼图配置好后 画在div上

myChart1.setOption(option);
                myChart2.setOption(option2);
                myChart3.setOption(option3);