day05-报表技术-图形报表

发布时间:2023年12月18日

1、图表报表简介

? 在大数据时代,人们需要对大量的数据进行分析,帮助用户或公司领导更直观的察觉差异,做出判断,减少时间成本,而在web项目中除了表格显示数据外,还可以通过图表来表现数据,这种图表形式表现数据使人看的清楚明白且更加直观。对于web项目展示图形报表使用最多的技术就是基于js的前端报表框架,目前前端市场使用最多的图形报表框架有:JfreeChart、ECharts、Highcharts、FusionCharts、amCharts等。

2、JFreechart

2.1 简介

JFreeChart是JAVA平台上的一个开放的图表绘制类库。它完全使用JAVA语言编写,可生成饼图(pie charts)、柱状图(bar charts)、散点图(scatter plots)、时序图(time series)、甘特图(Gantt charts)等等多种图表,并且可以产生PNG和JPEG格式的输出,还可以与PDF或EXCEL关联。

2.2 入门Demo

需要的依赖:

<dependency>
    <groupId>org.jfree</groupId>
    <artifactId>jfreechart</artifactId>
    <version>1.5.0</version>
</dependency>

2.2.1 饼图&3D饼图

package com.itheima.test;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtils;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.StandardChartTheme;
import org.jfree.data.general.DefaultPieDataset;

import java.awt.*;
import java.io.File;

public class JfreeChartsDemo1 {

    public static void main(String[] args) throws Exception {
//构建饼图的数据集
        DefaultPieDataset dataset=new DefaultPieDataset();
        dataset.setValue("销售部", 120);
        dataset.setValue("人事部", 50);
        dataset.setValue("技术部", 180);

        StandardChartTheme standardChartTheme=new StandardChartTheme("CN");
        //设置标题字体
        standardChartTheme.setExtraLargeFont(new Font("华文宋体",Font.BOLD,20));
        //设置图例的字体
        standardChartTheme.setRegularFont(new Font("华文宋体", Font.BOLD,15));
        //设置轴向的字体
        standardChartTheme.setLargeFont(new Font("华文宋体",Font.BOLD,15));
        //应用主题样式
        ChartFactory.setChartTheme(standardChartTheme);
//参数1  title 标题
//参数2 dataset 数据集
//参数3   是否开启图例
//参数4   是否开启工具栏
//参数5  是否开启url跳转
//        JFreeChart chart= ChartFactory.createPieChart("各部门人数", dataset, true, false, false);

        JFreeChart chart= ChartFactory.createPieChart3D("各部门人数", dataset, true, false, false);
//生成一张图表的图片文件
        ChartUtils.saveChartAsPNG(new File("d:\\chart1.png"), chart, 400, 300);
    }
}

效果图:

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3D效果图

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2.2.2 折线图

package com.itheima.test;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtils;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.StandardChartTheme;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.data.general.Dataset;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.DefaultValueDataset;

import java.awt.*;
import java.io.File;

public class JfreeChartsDemo2 {

    public static void main(String[] args) throws Exception {
//构建饼图的数据集
        DefaultCategoryDataset dataset=new DefaultCategoryDataset();
        dataset.addValue(15,"技术部","2011");
        dataset.addValue(11,"技术部","2012");
        dataset.addValue(10,"技术部","2013");
        dataset.addValue(16,"技术部","2014");

        dataset.addValue(10,"销售部","2011");
        dataset.addValue(30,"销售部","2012");
        dataset.addValue(6,"销售部","2013");
        dataset.addValue(16,"销售部","2014");

        dataset.addValue(10,"产品部","2011");
        dataset.addValue(20,"产品部","2012");
        dataset.addValue(30,"产品部","2013");
        dataset.addValue(15,"产品部","2014");
        StandardChartTheme standardChartTheme=new StandardChartTheme("CN");
        //设置标题字体
        standardChartTheme.setExtraLargeFont(new Font("华文宋体",Font.BOLD,20));
        //设置图例的字体
        standardChartTheme.setRegularFont(new Font("华文宋体", Font.PLAIN,15));
        //设置轴向的字体
        standardChartTheme.setLargeFont(new Font("华文宋体",Font.PLAIN,15));
        //应用主题样式
        ChartFactory.setChartTheme(standardChartTheme);
//参数1  title 标题
//参数2 x轴的说明
//参数3   Y轴的说明
//参数4   数据集
        JFreeChart chart= ChartFactory.createLineChart("入职人数", "年度", "人数", dataset);
//生成一张图表的图片文件
        ChartUtils.saveChartAsPNG(new File("d:\\chart2.png"), chart, 400, 300);
    }
}

效果图:

在这里插入图片描述

2.2.3 柱状图(条形图)

package com.itheima.test;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtils;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.StandardChartTheme;
import org.jfree.data.category.DefaultCategoryDataset;

import java.awt.*;
import java.io.File;

public class JfreeChartsDemo3 {

    public static void main(String[] args) throws Exception {
//构建饼图的数据集
        DefaultCategoryDataset dataset=new DefaultCategoryDataset();
        dataset.addValue(15,"技术部","2011");
        dataset.addValue(11,"技术部","2012");
        dataset.addValue(10,"技术部","2013");
        dataset.addValue(16,"技术部","2014");

        dataset.addValue(10,"销售部","2011");
        dataset.addValue(30,"销售部","2012");
        dataset.addValue(6,"销售部","2013");
        dataset.addValue(16,"销售部","2014");

        dataset.addValue(10,"产品部","2011");
        dataset.addValue(20,"产品部","2012");
        dataset.addValue(30,"产品部","2013");
        dataset.addValue(15,"产品部","2014");

        StandardChartTheme standardChartTheme=new StandardChartTheme("CN");
        //设置标题字体
        standardChartTheme.setExtraLargeFont(new Font("华文宋体",Font.BOLD,20));
        //设置图例的字体
        standardChartTheme.setRegularFont(new Font("华文宋体", Font.PLAIN,15));
        //设置轴向的字体
        standardChartTheme.setLargeFont(new Font("华文宋体",Font.PLAIN,15));
        //应用主题样式
        ChartFactory.setChartTheme(standardChartTheme);
//参数1  title 标题
//参数2 x轴的说明
//参数3   Y轴的说明
//参数4   数据集
        JFreeChart chart= ChartFactory.createBarChart("入职人数", "年度", "人数", dataset);
//生成一张图表的图片文件
        ChartUtils.saveChartAsPNG(new File("d:\\chart3.png"), chart, 400, 300);
    }
}

效果图:

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3、Highcharts

3.1 简介

? Highcharts 是一个用纯JavaScript编写的一个图表库, 能够很简单便捷的在web网站或是web应用程序添加有交互性的图表,并且免费提供给个人学习、个人网站和非商业用途使用。HighCharts支持的图表类型有曲线图、区域图、柱状图、饼状图、散状点图和综合图表。

3.2 下载安装

官网下载: https://www.highcharts.com.cn/download

1、下载

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2、解压

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3、把js放入到项目中

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3.3 入门案例

第一步:创建一个html demo.html

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第二步:页面中引入js文件

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="js/highcharts.js"></script>
</head>
<body>

</body>
</html>

第三步:准备一个dom

<body>
<div id="container" style="width: 600px;height:400px;"></div>
</body>

第四步:js代码

<script>
        // 图表配置
        var options = {
            chart: {
                type: 'bar'                          //指定图表的类型,默认是折线图(line)
            },
            title: {
                text: '我的第一个图表'                 // 标题
            },
            xAxis: {
                categories: ['苹果', '香蕉', '橙子']   // x 轴分类
            },
            yAxis: {
                title: {
                    text: '吃水果个数'                // y 轴标题
                }
            },
            series: [{                              // 数据列
                name: '小明',                        // 数据列名
                data: [1, 0, 4]                     // 数据
            }, {
                name: '小红',
                data: [5, 7, 3]
            }]
        };
        // 图表初始化函数
        var chart = Highcharts.chart('container', options);
    </script>

运行结果:

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属性解释:
(1)chart :图表基本属性
    a)	plotBackgroundColor  区域背景颜色
    b)	plotBorderWidth  区域边框宽度
    c)	plotShadow  区域阴影
    d)	type  图表类型
(2)title :图表标题
    a)	text 标题文本
(3)tooltip :工具提示
    a)	pointFormat  工具提示显示格式
(4)plotOptions:区域选项
    a)	allowPointSelect  点击区域后选择
    b)	cursor  光标类型
    c)	dataLabels  数据标签
    d)	showInLegend  是否显示图例
(5)series: 数据组
    a)	name  名称
    b)	colorByPoint  点的颜色
    c)	data  数据

3.4 准备页面

在static文件夹下创建页面echarts_index.html ,内容如下

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0,user-scalable=no,minimal-ui" />
    <title>highcharts图表报表</title>
    <link rel="stylesheet" href="css/charts_demo.css">
    <script src="js/vuejs-2.5.16.js"></script>
    <script src="js/axios-0.18.0.js"></script>
    <script src="js/highcharts.js"></script>
    <script src="js/highcharts-3d.js"></script>
    <script src="js/highcharts-more.js"></script>
    <script src="js/drilldown.js"></script>


</head>
<body>
<div id="app" class="my-box">
    <div class="my-box-left">
        <button @click="columnCharts">统计各部门人数</button> <br/> <br/>
        <button @click="lineCharts">月份入职人数统计</button> <br/> <br/>
        <button @click="pieCharts">员工地方来源统计</button> <br/> <br/>
    </div>
    <div class="my-box-right">
        <div id="container" style="height:450px;"></div>
    </div>
</div>
</body>
<script>
 new Vue({
     el:"#app",
     data:{},
     methods: {
         columnCharts() {

         },
         lineCharts(){

         },
         pieCharts(){

         }
     }
});
</script>
</html>

3.5 统计各部门人数(柱状图)

第一步:准备sql语句:用户表和部门表关联查询,根据部门名称分组统计

select dept_name deptName,count(u.id) num from tb_dept d LEFT JOIN tb_user u on  d.id=u.dept_id GROUP BY dept_name

第二步:后台代码

1、创建一个新的StatController

package com.itheima.controller;

import com.itheima.service.StatService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
import java.util.Map;

@RestController
@RequestMapping("/stat")
public class StatController {
    @Autowired
    private StatService statService;
    @GetMapping(value = "/columnCharts",name = "统计各部门人数,柱状图")
    public List<Map> columnCharts(){
        return  statService.columnCharts();
    }
}

2、创建StatService

package com.itheima.service;

import com.itheima.mapper.UserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;

@Service
public class StatService {

    @Autowired
    private UserMapper userMapper;

    public List<Map> columnCharts() {
        return userMapper.columnCharts();
    }
}

3、UserMapper定义方法

@Select(value = "select dept_name deptName,count(u.id) num from tb_dept d LEFT JOIN tb_user u on  d.id=u.dept_id GROUP BY dept_name")

List<Map> columnCharts();

第三步:完成js方法

在highcharts_index.html页面中参考highcharts官网上的柱状图完成以下代码

https://www.highcharts.com.cn/demo/highcharts/column-basic

 methods: {
         columnCharts() {
             axios.get("/stat/columnCharts").then(res => {
                 let datas = res.data;
                 let titles=[];  //x轴上显示的数据
                 let values=[]; //y轴上显示的数据
                 for (let i = 0; i < datas.length; i++) {
                     titles[i] = datas[i].deptName;
                     values[i] = datas[i].num;
                 }
                 Highcharts.chart('container', {
                     chart: {
                         type: 'column'
                     },
                     title: {
                         text: '各部门人数'
                     },
                     xAxis: {
                         categories:titles,
                         crosshair: true
                     },
                     yAxis: {
                         min: 0,
                         title: {
                             text: '人数'
                         }
                     },
                     tooltip: {
                         // head + 每个 point + footer 拼接成完整的 table
                         headerFormat: '<span style="font-size:10px">{point.key}</span><table>',
                         pointFormat: '<tr><td style="color:{series.color};padding:0">{series.name}: </td>' +
                             '<td style="padding:0"><b>{point.y:.1f} </b></td></tr>',
                         footerFormat: '</table>',
                         shared: true,
                         useHTML: true
                     },
                     plotOptions: {
                         column: {
                             borderWidth: 0
                         }
                     },
                     series: [{
                         name: '各部门人数',
                         data: values
                     }]
                 });


             })
         },
         pieCharts(){},
         lineCharts(){}
     }

最后效果:

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3.6 月份入职人数统计(折线图)

第一步:准备SQL语句

一年12个月,想知道什么月份入职的人员最后

select m.name,IFNULL(t.num,0) num from tb_month m LEFT JOIN (
select DATE_FORMAT(hire_date,'%m') months ,count(id) num from tb_user GROUP BY DATE_FORMAT(hire_date,'%m')
) t ON m.name=t.months

第二步:完成后台代码

1、StatController添加方法

@GetMapping(value = "/lineCharts",name = "月份入职人数统计,折线图")
public List<Map> lineCharts(){
    return  statService.lineCharts();
}

2、StatService添加方法

public List<Map> lineCharts() {
    return userMapper.lineCharts();
}

3、UserMapper添加方法

@Select("select m.name,IFNULL(t.num,0) num from tb_month m LEFT JOIN ( " +
        "select DATE_FORMAT(hire_date,'%m') months ,count(id) num from tb_user GROUP BY DATE_FORMAT(hire_date,'%m') " +
        ") t ON m.name=t.months")
List<Map> lineCharts();

第三步:完成js代码

在highcharts_index.html页面中参考highcharts官网上的柱状图完成以下代码

https://www.highcharts.com.cn/demo/highcharts/line-basic

lineCharts(){
    axios.get("/stat/lineCharts").then(res=>{
        let datas = res.data;
        let values=[]; //y轴上显示的数据
        for (let i = 0; i < datas.length; i++) {
            values[i] = datas[i].num;
        }
        var chart = Highcharts.chart('container', {
            title: {
                text: '月份入职人数统计'
            },
            yAxis: {
                title: {
                    text: '入职人数'
                }
            },
            legend: {
                layout: 'vertical',
                align: 'right',
                verticalAlign: 'middle'
            },
            plotOptions: {
                series: {
                    label: {
                        connectorAllowed: false
                    },
                    pointStart: 2010
                }
            },
            series: [{
                name: '入职人数',
                data: values
            }],
            responsive: {
                rules: [{
                    condition: {
                        maxWidth: 500
                    },
                    chartOptions: {
                        legend: {
                            layout: 'horizontal',
                            align: 'center',
                            verticalAlign: 'bottom'
                        }
                    }
                }]
            }
        });

    })
}

效果:

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3.7 员工地方来源统计(可下钻的饼状图)

统计公司员工的来源

第一步:环境准备

什么是下钻的效果

https://www.highcharts.com.cn/demo/highcharts/column-drilldown

https://www.highcharts.com.cn/demo/highcharts/pie-drilldown

如果想要下钻的效果,需要在多引入一个js,从下载的压缩包中找到后放到项目中,并且在html中引入

<script src="js/drilldown.js"></script>

第二步:后台方法准备数据

1、StatController代码添加方法

@GetMapping(value = "/pieCharts",name = "公司员工地方来源,包括省、市")
public List<Map> pieCharts(){
    return  statService.pieCharts();
}

3、StatService中添加方法

这个方法直接返回js上需要的所有数据

[{id:“河北省”,“drilldown”:“河北省”,“name”:“河北省”,“y”:10,“data”:[{“name”:“石家庄”,“y”:4},{“name”:“唐山”,“y”:3},{“name”:“保定”,“y”:3}]}]

public List<Map> pieCharts() {
        List<Map> resultMapList = new ArrayList();
//        最终想要的数据格式:[{id:"河北省","drilldown":"河北省","name":"河北省","y":10,"data":[{"name":"石家庄","y":4},{"name":"唐山","y":3},{"name":"保定","y":3}]}]
        List<User> userList = userMapper.selectAll(); //查询所有员工数据
//        根据省份分组
        Map<String, List<User>> provinceMap = userList.stream().collect(Collectors.groupingBy(User::getProvince));
        for (String provinceName : provinceMap.keySet()) {
            int provinceSize = 0;
            Map resultMap = new HashMap();
            resultMap.put("id",provinceName);
            resultMap.put("drilldown",provinceName);
            resultMap.put("name",provinceName);
//            再根据城市分组
            Map<String, List<User>> cityMap = provinceMap.get(provinceName).stream().collect(Collectors.groupingBy(User::getCity));
            List<Map> dataMapList = new ArrayList<>();
            for (String cityName : cityMap.keySet()) {
                Map dataMap = new HashMap();
                dataMap.put("name",cityName);
                int citySize = cityMap.get(cityName).size();
                dataMap.put("y",citySize);
                dataMapList.add(dataMap);
                provinceSize+=citySize;
            }
            resultMap.put("y",provinceSize);
            resultMap.put("data",dataMapList);
            resultMapList.add(resultMap);
        }
            return resultMapList;
    }

第三步:完成js代码

 pieCharts(){
             axios.get("/stat/pieCharts").then(res=>{
                let datas = res.data;
                 Highcharts.chart('container', {
                     chart: {
                         type: 'column'
                     },
                     title: {
                         text: '公司原因地方来源'
                     },
                     xAxis: {
                         type: 'category'
                     },
                     yAxis: {
                         title: {
                             text: '人数'
                         }
                     },
                     legend: {
                         enabled: false
                     },
                     plotOptions: {
                         series: {
                             borderWidth: 0,
                             dataLabels: {
                                 enabled: true,
                                 format: '{point.y}'
                             }
                         }
                     },
                     tooltip: {
                         headerFormat: '<span style="font-size:11px">{series.name}</span><br>',
                         pointFormat: '<span style="color:{point.color}">{point.name}</span>: <b>{point.y}</b><br/>'
                     },
                     series: [{
                         name: '省份',
                         colorByPoint: true,
                         data: datas
                     }],
                     drilldown: {
                         series: datas
                     }
                 });

             })

         }

效果:

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点击河北省

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4、Echarts

4.1 简介

ECharts是由百度前端团队开发的一款开源的基于js图形报表组件,一个使用 JavaScript 实现的开源可视化库,可以流畅的运行在 PC 和移动设备上,兼容当前绝大部分浏览器(IE8/9/10/11,Chrome,Firefox,Safari等),底层依赖轻量级的矢量图形库 ZRender,提供直观,交互丰富,可高度个性化定制的数据可视化图表。

ECharts 特性:

丰富的可视化类型

多种数据格式无需转换直接使用

千万数据的前端展现

移动端优化

多渲染方案,跨平台使用!

深度的交互式数据探索

多维数据的支持以及丰富的视觉编码手段

动态数据

绚丽的特效

4.2 下载安装

1、下载js

https://github.com/apache/incubator-echarts/tree/4.7.0

在这里插入图片描述

或 从 npm 安装 (前提是电脑上有node环境)

npm install echarts

2、把下载好的js放入到项目中

在这里插入图片描述

4.3 入门案例

第一步 导入js依赖

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <!-- 引入 ECharts 文件 -->
    <script src="js/echarts.min.js"></script>
</head>
</html>

4.3.2 配置dom容器

在绘图前我们需要为 ECharts 准备一个具备高宽的 DOM 容器。

<body>
    <!-- 为 ECharts 准备一个具备大小(宽高)的 DOM -->
    <div id="main" style="width: 600px;height:400px;"></div>
</body>

4.3.3 初始化图形

然后就可以通过 echarts.init 方法初始化一个 echarts 实例并通过 setOption 方法生成一个简单的柱状图,下面是完整代码。

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>ECharts</title>
    <!-- 引入 echarts.js -->
    <script src="echarts.min.js"></script>
</head>
<body>
    <!-- 为ECharts准备一个具备大小(宽高)的Dom -->
    <div id="main" style="width: 600px;height:400px;"></div>
    <script type="text/javascript">
        // 基于准备好的dom,初始化echarts实例
        var myChart = echarts.init(document.getElementById('main'));

        // 指定图表的配置项和数据
        var option = {
            title: {
                text: 'ECharts 入门示例'
            },
            tooltip: {},
            legend: {
                data:['销量']
            },
            xAxis: {
                data: ["衬衫","羊毛衫","雪纺衫","裤子","高跟鞋","袜子"]
            },
            yAxis: {},
            series: [{
                name: '销量',
                type: 'bar',
                data: [5, 20, 36, 10, 10, 20]
            }]
        };

        // 使用刚指定的配置项和数据显示图表。
        myChart.setOption(option);
    </script>
</body>
</html>

效果:

在这里插入图片描述

4.4 准备页面

在static下新建一个页面echarts_index.html 内容如下

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0,user-scalable=no,minimal-ui" />
    <title>echarts图表报表</title>
    <link rel="stylesheet" href="css/charts_demo.css">
    <script src="js/vuejs-2.5.16.js"></script>
    <script src="js/axios-0.18.0.js"></script>
    <script src="js/echarts.min.js"></script>

</head>
<body>
<div id="app" class="my-box">
    <div class="my-box-left">
        <button @click="columnCharts">统计各部门人数</button> <br/> <br/>
        <button @click="lineCharts">月份入职人数统计</button> <br/> <br/>
        <button @click="pieCharts">员工地方来源统计</button> <br/> <br/>
        <button @click="mapCharts">员工地方来源统计(地图)</button> <br/> <br/>
    </div>
    <div class="my-box-right">
        <div id="container" style="height:450px;"></div>
    </div>
</div>
</body>
<script>
    new Vue({
        el:"#app",
        data:{},
        methods: {
            columnCharts() {

            },
            lineCharts(){

            },
            pieCharts(){

            },
            mapCharts(){

            }
        }
    });
</script>
</html>

4.5 统计各部门人数(柱状图)

官网参考 https://echarts.apache.org/examples/zh/editor.html?c=bar-simple

可以直接使用3.5小结highcharts的后台方法

修改echarts_index.html中的js方法

columnCharts() {
    axios.get("/stat/columnCharts").then(res=>{
        let datas = res.data;
        let titles=[];  //x轴上显示的数据
        let values=[]; //y轴上显示的数据
        for (let i = 0; i < datas.length; i++) {
            titles[i] = datas[i].deptName;
            values[i] = datas[i].num;
        }

        var myChart = echarts.init(document.getElementById('container'));
        // 指定图表的配置项和数据
        var option = {
            title: {
                text: '各部门人数'
            },
            tooltip: {},
            legend: {
                data:['人数']
            },
            xAxis: {
                data: titles
            },
            yAxis: {},
            series: [{
                name: '人数',
                type: 'bar',
                data: values
            }]
        };

        // 使用刚指定的配置项和数据显示图表。
        myChart.clear();
        myChart.setOption(option);

    })
}

效果:

在这里插入图片描述

4.6 月份入职人数统计(折线图)

官网参考 https://echarts.apache.org/examples/zh/editor.html?c=line-simple

可以直接使用3.6小结highcharts的后台方法

修改echarts_index.html中的js方法

lineCharts(){
    axios.get("/stat/lineCharts").then(res=>{
        let datas = res.data;
        let titles=[];  //x轴上显示的数据
        let values=[]; //y轴上显示的数据
        for (let i = 0; i < datas.length; i++) {
            titles[i] = datas[i].name;
            values[i] = datas[i].num;
        }

        var myChart = echarts.init(document.getElementById('container'));

        option = {
            xAxis: {
                type: 'category',
                data: titles
            },
            yAxis: {
                type: 'value'
            },
            series: [{
                data: values,
                type: 'line'
            }]
        };

        // 使用刚指定的配置项和数据显示图表。
        myChart.clear();
        myChart.setOption(option);
    })
}

在这里插入图片描述

4.7 员工地方来源统计(饼图)

Echarts没有提供下钻的效果,但是有一个和下钻类似的效果

官网参考 https://echarts.apache.org/examples/zh/editor.html?c=pie-nest

安装官网上给的参考数据,会发现需要用到三种数据:省份集合、城市集合、城市名称集合

第一步:根据需求后台提供数据

1、StatController新添加一个方法

@GetMapping(value = "/pieECharts",name = "公司员工地方来源,包括省、市")
public Map  pieECharts(){
    return  statService.pieECharts();
}

2、StatService处理数据

public  Map pieECharts() {
    Map resultMap = new HashMap();
    //        最终想要的数据格式:{province:[{name:,value:}],city:[]}
    Example example = new Example(User.class);
    example.setOrderByClause("province , city");
    List<User> userList = userMapper.selectByExample(example); //查询所有员工数据
    //        根据省份分组
    List<Map> provinceMapList = new ArrayList<>();
    //        注意分组时得排序,不然数据会乱
    Map<String, List<User>> provinceMap = userList.stream().collect(Collectors.groupingBy(User::getProvince,LinkedHashMap::new,Collectors.toList()));
    for (String provinceName : provinceMap.keySet()) {
        Map map = new HashMap();
        map.put("name",provinceName);
        map.put("value",provinceMap.get(provinceName).size());
        provinceMapList.add(map);
    }

    List<Map> cityMapList = new ArrayList<>();
    //        注意分组时得排序,不然数据会乱
    Map<String, List<User>> cityMap = userList.stream().collect(Collectors.groupingBy(User::getCity, LinkedHashMap::new,Collectors.toList()));
    for (String cityName : cityMap.keySet()) {
        Map map = new HashMap();
        map.put("name",cityName);
        map.put("value",cityMap.get(cityName).size());
        cityMapList.add(map);
    }

    resultMap.put("province",provinceMapList);
    resultMap.put("city",cityMapList);

    return resultMap;
}

第二步:完成JS代码

pieCharts(){
    axios.get("/stat/pieECharts").then(res=>{
        let datas = res.data;
        // 需要三种数据:都可以从datas中获取
        //  1、省份数据 [{name:"河北省",value:10}]
        // 2、城市数据 [{name:"石家庄",value:3}]
        // 3、城市的名称
        let provinceData =  datas.province;
        let cityData = datas.city;
        let cityNames = [];
        for (let i = 0; i < cityData.length; i++) {
            cityNames[i] = cityData[i].name;
        }


        var myChart = echarts.init(document.getElementById('container'));

        option = {
            tooltip: {
                trigger: 'item',
                formatter: '{a} <br/>{b}: {c} ({d}%)'
            },
            legend: {
                orient: 'vertical',
                left: 10,
                data: cityNames
            },
            series: [
                {
                    name: '员工来源',
                    type: 'pie',
                    selectedMode: 'single',
                    radius: [0, '30%'],

                    label: {
                        position: 'inner'
                    },
                    labelLine: {
                        show: false
                    },
                    data: provinceData
                },
                {
                    name: '员工来源',
                    type: 'pie',
                    radius: ['40%', '55%'],
                    label: {
                        formatter: '{a|{a}}{abg|}\n{hr|}\n  {b|{b}:}{c}  {per|{d}%}  ',
                        backgroundColor: '#eee',
                        borderColor: '#aaa',
                        borderWidth: 1,
                        borderRadius: 4,
                        // shadowBlur:3,
                        // shadowOffsetX: 2,
                        // shadowOffsetY: 2,
                        // shadowColor: '#999',
                        // padding: [0, 7],
                        rich: {
                            a: {
                                color: '#999',
                                lineHeight: 22,
                                align: 'center'
                            },
                            // abg: {
                            //     backgroundColor: '#333',
                            //     width: '100%',
                            //     align: 'right',
                            //     height: 22,
                            //     borderRadius: [4, 4, 0, 0]
                            // },
                            hr: {
                                borderColor: '#aaa',
                                width: '100%',
                                borderWidth: 0.5,
                                height: 0
                            },
                            b: {
                                fontSize: 16,
                                lineHeight: 33
                            },
                            per: {
                                color: '#eee',
                                backgroundColor: '#334455',
                                padding: [2, 4],
                                borderRadius: 2
                            }
                        }
                    },
                    data: cityData
                }
            ]
        };


        // 使用刚指定的配置项和数据显示图表。
        myChart.clear();
        myChart.setOption(option);
    })
}

在这里插入图片描述

4.8 员工地方来源统计(中国地图)

直接使用4.7小结提供的后台数据

第一步:参考官网源码引用js

https://echarts.apache.org/examples/zh/editor.html?c=map-polygon

    <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts/dist/echarts.min.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts-gl/dist/echarts-gl.min.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts-stat/dist/ecStat.min.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts/dist/extension/dataTool.min.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts/map/js/china.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts/map/js/world.js"></script>
    <script type="text/javascript" src="https://api.map.baidu.com/api?v=2.0&ak=UzpZ9A94pysSfj013URfjCfeUKjMv52F"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts/dist/extension/bmap.min.js"></script>

第二步:修改js代码

mapCharts(){
    axios.get("/stat/pieECharts").then(res=>{
        var myChart = echarts.init(document.getElementById('container'));

        var data = res.data.city;
        for (let i = 0; i < data.length; i++) {
            data[i].name = data[i].name.substring(0,data[i].name.length-1);
            data[i].value = data[i].value; 
        }

        var geoCoordMap = {
            '海门':[121.15,31.89],
            '鄂尔多斯':[109.781327,39.608266],
            '招远':[120.38,37.35],
            '舟山':[122.207216,29.985295],
            '齐齐哈尔':[123.97,47.33],
            '盐城':[120.13,33.38],
            '赤峰':[118.87,42.28],
            '青岛':[120.33,36.07],
            '乳山':[121.52,36.89],
            '金昌':[102.188043,38.520089],
            '泉州':[118.58,24.93],
            '莱西':[120.53,36.86],
            '日照':[119.46,35.42],
            '胶南':[119.97,35.88],
            '南通':[121.05,32.08],
            '拉萨':[91.11,29.97],
            '云浮':[112.02,22.93],
            '梅州':[116.1,24.55],
            '文登':[122.05,37.2],
            '上海':[121.48,31.22],
            '攀枝花':[101.718637,26.582347],
            '威海':[122.1,37.5],
            '承德':[117.93,40.97],
            '厦门':[118.1,24.46],
            '汕尾':[115.375279,22.786211],
            '潮州':[116.63,23.68],
            '丹东':[124.37,40.13],
            '太仓':[121.1,31.45],
            '曲靖':[103.79,25.51],
            '烟台':[121.39,37.52],
            '福州':[119.3,26.08],
            '瓦房店':[121.979603,39.627114],
            '即墨':[120.45,36.38],
            '抚顺':[123.97,41.97],
            '玉溪':[102.52,24.35],
            '张家口':[114.87,40.82],
            '阳泉':[113.57,37.85],
            '莱州':[119.942327,37.177017],
            '湖州':[120.1,30.86],
            '汕头':[116.69,23.39],
            '昆山':[120.95,31.39],
            '宁波':[121.56,29.86],
            '湛江':[110.359377,21.270708],
            '揭阳':[116.35,23.55],
            '荣成':[122.41,37.16],
            '连云港':[119.16,34.59],
            '葫芦岛':[120.836932,40.711052],
            '常熟':[120.74,31.64],
            '东莞':[113.75,23.04],
            '河源':[114.68,23.73],
            '淮安':[119.15,33.5],
            '泰州':[119.9,32.49],
            '南宁':[108.33,22.84],
            '营口':[122.18,40.65],
            '惠州':[114.4,23.09],
            '江阴':[120.26,31.91],
            '蓬莱':[120.75,37.8],
            '韶关':[113.62,24.84],
            '嘉峪关':[98.289152,39.77313],
            '广州':[113.23,23.16],
            '延安':[109.47,36.6],
            '太原':[112.53,37.87],
            '清远':[113.01,23.7],
            '中山':[113.38,22.52],
            '昆明':[102.73,25.04],
            '寿光':[118.73,36.86],
            '盘锦':[122.070714,41.119997],
            '长治':[113.08,36.18],
            '深圳':[114.07,22.62],
            '珠海':[113.52,22.3],
            '宿迁':[118.3,33.96],
            '咸阳':[108.72,34.36],
            '铜川':[109.11,35.09],
            '平度':[119.97,36.77],
            '佛山':[113.11,23.05],
            '海口':[110.35,20.02],
            '江门':[113.06,22.61],
            '章丘':[117.53,36.72],
            '肇庆':[112.44,23.05],
            '大连':[121.62,38.92],
            '临汾':[111.5,36.08],
            '吴江':[120.63,31.16],
            '石嘴山':[106.39,39.04],
            '沈阳':[123.38,41.8],
            '苏州':[120.62,31.32],
            '茂名':[110.88,21.68],
            '嘉兴':[120.76,30.77],
            '长春':[125.35,43.88],
            '胶州':[120.03336,36.264622],
            '银川':[106.27,38.47],
            '张家港':[120.555821,31.875428],
            '三门峡':[111.19,34.76],
            '锦州':[121.15,41.13],
            '南昌':[115.89,28.68],
            '柳州':[109.4,24.33],
            '三亚':[109.511909,18.252847],
            '自贡':[104.778442,29.33903],
            '吉林':[126.57,43.87],
            '阳江':[111.95,21.85],
            '泸州':[105.39,28.91],
            '西宁':[101.74,36.56],
            '宜宾':[104.56,29.77],
            '呼和浩特':[111.65,40.82],
            '成都':[104.06,30.67],
            '大同':[113.3,40.12],
            '镇江':[119.44,32.2],
            '桂林':[110.28,25.29],
            '张家界':[110.479191,29.117096],
            '宜兴':[119.82,31.36],
            '北海':[109.12,21.49],
            '西安':[108.95,34.27],
            '金坛':[119.56,31.74],
            '东营':[118.49,37.46],
            '牡丹江':[129.58,44.6],
            '遵义':[106.9,27.7],
            '绍兴':[120.58,30.01],
            '扬州':[119.42,32.39],
            '常州':[119.95,31.79],
            '潍坊':[119.1,36.62],
            '重庆':[106.54,29.59],
            '台州':[121.420757,28.656386],
            '南京':[118.78,32.04],
            '滨州':[118.03,37.36],
            '贵阳':[106.71,26.57],
            '无锡':[120.29,31.59],
            '本溪':[123.73,41.3],
            '克拉玛依':[84.77,45.59],
            '渭南':[109.5,34.52],
            '马鞍山':[118.48,31.56],
            '宝鸡':[107.15,34.38],
            '焦作':[113.21,35.24],
            '句容':[119.16,31.95],
            '北京':[116.46,39.92],
            '徐州':[117.2,34.26],
            '衡水':[115.72,37.72],
            '包头':[110,40.58],
            '绵阳':[104.73,31.48],
            '乌鲁木齐':[87.68,43.77],
            '枣庄':[117.57,34.86],
            '杭州':[120.19,30.26],
            '淄博':[118.05,36.78],
            '鞍山':[122.85,41.12],
            '溧阳':[119.48,31.43],
            '库尔勒':[86.06,41.68],
            '安阳':[114.35,36.1],
            '开封':[114.35,34.79],
            '济南':[117,36.65],
            '德阳':[104.37,31.13],
            '温州':[120.65,28.01],
            '九江':[115.97,29.71],
            '邯郸':[114.47,36.6],
            '临安':[119.72,30.23],
            '兰州':[103.73,36.03],
            '沧州':[116.83,38.33],
            '临沂':[118.35,35.05],
            '南充':[106.110698,30.837793],
            '天津':[117.2,39.13],
            '富阳':[119.95,30.07],
            '泰安':[117.13,36.18],
            '诸暨':[120.23,29.71],
            '郑州':[113.65,34.76],
            '哈尔滨':[126.63,45.75],
            '聊城':[115.97,36.45],
            '芜湖':[118.38,31.33],
            '唐山':[118.02,39.63],
            '平顶山':[113.29,33.75],
            '邢台':[114.48,37.05],
            '德州':[116.29,37.45],
            '济宁':[116.59,35.38],
            '荆州':[112.239741,30.335165],
            '宜昌':[111.3,30.7],
            '义乌':[120.06,29.32],
            '丽水':[119.92,28.45],
            '洛阳':[112.44,34.7],
            '秦皇岛':[119.57,39.95],
            '株洲':[113.16,27.83],
            '石家庄':[114.48,38.03],
            '莱芜':[117.67,36.19],
            '常德':[111.69,29.05],
            '保定':[115.48,38.85],
            '湘潭':[112.91,27.87],
            '金华':[119.64,29.12],
            '岳阳':[113.09,29.37],
            '长沙':[113,28.21],
            '衢州':[118.88,28.97],
            '廊坊':[116.7,39.53],
            '菏泽':[115.480656,35.23375],
            '合肥':[117.27,31.86],
            '武汉':[114.31,30.52],
            '大庆':[125.03,46.58]
        };

        var convertData = function (data) {
            var res = [];
            for (var i = 0; i < data.length; i++) {
                var geoCoord = geoCoordMap[data[i].name];
                if (geoCoord) {
                    res.push({
                        name: data[i].name,
                        value: geoCoord.concat(data[i].value)
                    });
                }
            }
            return res;
        };

        /* function renderItem(params, api) {
                        var coords = [
                            [116.7,39.53],
                            [103.73,36.03],
                            [112.91,27.87],
                            [120.65,28.01],
                            [119.57,39.95]
                        ];
                        var points = [];
                        for (var i = 0; i < coords.length; i++) {
                            points.push(api.coord(coords[i]));
                        }
                        var color = api.visual('color');

                        return {
                            type: 'polygon',
                            shape: {
                                points: echarts.graphic.clipPointsByRect(points, {
                                    x: params.coordSys.x,
                                    y: params.coordSys.y,
                                    width: params.coordSys.width,
                                    height: params.coordSys.height
                                })
                            },
                            style: api.style({
                                fill: color,
                                stroke: echarts.color.lift(color)
                            })
                        };
                    }*/

        option = {
            backgroundColor: 'transparent',
            title: {
                text: '公司员工来源',                
                left: 'center',
                textStyle: {
                    color: '#fff'
                }
            },
            tooltip : {
                trigger: 'item'
            },
            bmap: {
                center: [104.114129, 37.550339],
                zoom: 5,
                roam: true,
                mapStyle: {
                    styleJson: [
                        {
                            "featureType": "water",
                            "elementType": "all",
                            "stylers": {
                                "color": "#044161"
                            }
                        },
                        {
                            "featureType": "land",
                            "elementType": "all",
                            "stylers": {
                                "color": "#004981"
                            }
                        },
                        {
                            "featureType": "boundary",
                            "elementType": "geometry",
                            "stylers": {
                                "color": "#064f85"
                            }
                        },
                        {
                            "featureType": "railway",
                            "elementType": "all",
                            "stylers": {
                                "visibility": "off"
                            }
                        },
                        {
                            "featureType": "highway",
                            "elementType": "geometry",
                            "stylers": {
                                "color": "#004981"
                            }
                        },
                        {
                            "featureType": "highway",
                            "elementType": "geometry.fill",
                            "stylers": {
                                "color": "#005b96",
                                "lightness": 1
                            }
                        },
                        {
                            "featureType": "highway",
                            "elementType": "labels",
                            "stylers": {
                                "visibility": "off"
                            }
                        },
                        {
                            "featureType": "arterial",
                            "elementType": "geometry",
                            "stylers": {
                                "color": "#004981"
                            }
                        },
                        {
                            "featureType": "arterial",
                            "elementType": "geometry.fill",
                            "stylers": {
                                "color": "#00508b"
                            }
                        },
                        {
                            "featureType": "poi",
                            "elementType": "all",
                            "stylers": {
                                "visibility": "off"
                            }
                        },
                        {
                            "featureType": "green",
                            "elementType": "all",
                            "stylers": {
                                "color": "#056197",
                                "visibility": "off"
                            }
                        },
                        {
                            "featureType": "subway",
                            "elementType": "all",
                            "stylers": {
                                "visibility": "off"
                            }
                        },
                        {
                            "featureType": "manmade",
                            "elementType": "all",
                            "stylers": {
                                "visibility": "off"
                            }
                        },
                        {
                            "featureType": "local",
                            "elementType": "all",
                            "stylers": {
                                "visibility": "off"
                            }
                        },
                        {
                            "featureType": "arterial",
                            "elementType": "labels",
                            "stylers": {
                                "visibility": "off"
                            }
                        },
                        {
                            "featureType": "boundary",
                            "elementType": "geometry.fill",
                            "stylers": {
                                "color": "#029fd4"
                            }
                        },
                        {
                            "featureType": "building",
                            "elementType": "all",
                            "stylers": {
                                "color": "#1a5787"
                            }
                        },
                        {
                            "featureType": "label",
                            "elementType": "all",
                            "stylers": {
                                "visibility": "off"
                            }
                        }
                    ]
                }
            },
            series : [
                {
                    name: '人员',
                    type: 'scatter',
                    coordinateSystem: 'bmap',
                    data: convertData(data),
                    symbolSize: function (val) {
                        return val[2] * 100;//数据太小了,为了能显示 把符号扩大了100倍
                    },
                    label: {
                        formatter: '{b}',
                        position: 'right'
                    },
                    itemStyle: {
                        color: '#ddb926'
                    },
                    emphasis: {
                        label: {
                            show: true
                        }
                    }
                },
                {
                    name: 'Top 5',
                    type: 'effectScatter',
                    coordinateSystem: 'bmap',
                    data: convertData(data.sort(function (a, b) {
                        return b.value - a.value;
                    }).slice(0, 6)),
                    symbolSize: function (val) {
                        return val[2] / 10;
                    },
                    showEffectOn: 'emphasis',
                    rippleEffect: {
                        brushType: 'stroke'
                    },
                    hoverAnimation: true,
                    label: {
                        formatter: '{b}',
                        position: 'right',
                        show: true
                    },
                    itemStyle: {
                        color: '#f4e925',
                        shadowBlur: 10,
                        shadowColor: '#333'
                    },
                    zlevel: 1
                },
                {
                    type: 'custom',
                    coordinateSystem: 'bmap',
                    // renderItem: renderItem,
                    itemStyle: {
                        opacity: 0.5
                    },
                    animation: false,
                    silent: true,
                    data: [0],
                    z: -10
                }
            ]
        };
        // 使用刚指定的配置项和数据显示图表。
        myChart.clear();
        myChart.setOption(option);
    })
}

效果:

在这里插入图片描述

文章来源:https://blog.csdn.net/qq_45525848/article/details/135036525
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