一、ECharts简介
1.功能
一个由百度开源的项目，由很多图形模板，例如柱状图、折线图、饼图等，可以用于直接展示数据，功能十分强大。
2.官网教程
http://www.echartsjs.com/tutorial.html#5%20%E5%88%86%E9%92%9F%E4%B8%8A%E6%89%8B%20ECharts
二、SpringBoot项目集成echarts
1.下载echarts版本
（1）2018之前可以这样下载，但是，2019年界面改版了，下载方法更新如下
选择版本下载版本（本次下载完整）
（2）2019新版本下载界面
-》点击“GitHub v4.1.0”
-》进入后，点击“<>Code”，进入gitHub下载界面
-》点击dist
-》发现，需要的对应版本的echarts.min.js文件，ok，之后可以githubclone下来，或者直接下载压缩包都可以~
2.在static下新建js包，放入刚刚下载的echarts.min.js
添加为
三、构建echarts静态数据
【参考：http://www.echartsjs.com/tutorial.html#5%20%E5%88%86%E9%92%9F%E4%B8%8A%E6%89%8B%20ECharts】
1.在templates文件创建html页面test.html
2.在创建的test.html的head中引入Echarts文件(参考官网)
<head>
<meta charset="UTF-8">
<title>Title</title>
<!-- 引入 ECharts 文件 -->
<script src="js/echarts.min.js"></script>
</head>3.在body中添加具备高宽的 DOM 容器
<!-- 为 ECharts 准备一个具备大小（宽高）的 DOM -->
<div id="main" style="width: 600px;height:400px;"></div>4.写入官网html实例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<!-- 引入 ECharts 文件 -->
<script src="js/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;absolute;top: 50%;left: 50%;margin-top: -200px;margin-left: -300px"></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>四、运行测试
1.修改pom依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>2.修改测试类HelloBoot，添加test.html的页面
package com.springboot;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.ModelAndView;
/**
* 第一个boot应用
*/
@RestController
public class HelloBoot {
@RequestMapping(value="/hello",method = RequestMethod.GET)
public String sayHello(){
return "Hello world";
}
@RequestMapping(value="/first",method = RequestMethod.GET)
public ModelAndView firstDemo(){
return new ModelAndView("test");
}
}3.访问http://localhost:9999/SpringBoot/first报错
org.xml.sax.SAXParseException: 元素类型 "meta" 必须由匹配的结束标记 "</meta>" 终止。原因：test.html的head中meta缺少结束/
<meta charset="UTF-8">改为
<meta charset="UTF-8"/>4.重新访问http://localhost:9999/SpringBoot/first，成功~
五、其他图形扩展
1.散点图
（1）在散点图实例中找到echarts源码
http://www.echartsjs.com/examples/editor.html?c=scatter-simple找到
option = {
xAxis: {},
yAxis: {},
series: [{
symbolSize: 20,
data: [
[10.0, 8.04],
[8.0, 6.95],
[13.0, 7.58],
[9.0, 8.81],
[11.0, 8.33],
[14.0, 9.96],
[6.0, 7.24],
[4.0, 4.26],
[12.0, 10.84],
[7.0, 4.82],
[5.0, 5.68]
],
type: 'scatter'
}]
};（2）修改替换test.html中的option变量
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8"/>
<title>Title</title>
<!-- 引入 ECharts 文件 -->
<script src="js/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;absolute;top: 50%;left: 50%;margin-top: -200px;margin-left: -300px"></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 = {
xAxis: {},
yAxis: {},
series: [{
symbolSize: 20,
data: [
[10.0, 8.04],
[8.0, 6.95],
[13.0, 7.58],
[9.0, 8.81],
[11.0, 8.33],
[14.0, 9.96],
[6.0, 7.24],
[4.0, 4.26],
[12.0, 10.84],
[7.0, 4.82],
[5.0, 5.68]
],
type: 'scatter'
}]
};
// 使用刚指定的配置项和数据显示图表。
myChart.setOption(option);
</script>
</body>
</html>（3）重新运行Application，访问http://localhost:9999/SpringBoot/first结果
2.气泡图
（1）在实例模板中找到echarts源码
app.title = '气泡图';
var data = [
[[28604,77,17096869,'Australia',1990],[31163,77.4,27662440,'Canada',1990],[1516,68,1154605773,'China',1990],[13670,74.7,10582082,'Cuba',1990],[28599,75,4986705,'Finland',1990],[29476,77.1,56943299,'France',1990],[31476,75.4,78958237,'Germany',1990],[28666,78.1,254830,'Iceland',1990],[1777,57.7,870601776,'India',1990],[29550,79.1,122249285,'Japan',1990],[2076,67.9,20194354,'North Korea',1990],[12087,72,42972254,'South Korea',1990],[24021,75.4,3397534,'New Zealand',1990],[43296,76.8,4240375,'Norway',1990],[10088,70.8,38195258,'Poland',1990],[19349,69.6,147568552,'Russia',1990],[10670,67.3,53994605,'Turkey',1990],[26424,75.7,57110117,'United Kingdom',1990],[37062,75.4,252847810,'United States',1990]],
[[44056,81.8,23968973,'Australia',2015],[43294,81.7,35939927,'Canada',2015],[13334,76.9,1376048943,'China',2015],[21291,78.5,11389562,'Cuba',2015],[38923,80.8,5503457,'Finland',2015],[37599,81.9,64395345,'France',2015],[44053,81.1,80688545,'Germany',2015],[42182,82.8,329425,'Iceland',2015],[5903,66.8,1311050527,'India',2015],[36162,83.5,126573481,'Japan',2015],[1390,71.4,25155317,'North Korea',2015],[34644,80.7,50293439,'South Korea',2015],[34186,80.6,4528526,'New Zealand',2015],[64304,81.6,5210967,'Norway',2015],[24787,77.3,38611794,'Poland',2015],[23038,73.13,143456918,'Russia',2015],[19360,76.5,78665830,'Turkey',2015],[38225,81.4,64715810,'United Kingdom',2015],[53354,79.1,321773631,'United States',2015]]
];
option = {
backgroundColor: new echarts.graphic.RadialGradient(0.3, 0.3, 0.8, [{
offset: 0,
color: '#f7f8fa'
}, {
offset: 1,
color: '#cdd0d5'
}]),
title: {
text: '1990 与 2015 年各国家人均寿命与 GDP'
},
legend: {
right: 10,
data: ['1990', '2015']
},
xAxis: {
splitLine: {
lineStyle: {
type: 'dashed'
}
}
},
yAxis: {
splitLine: {
lineStyle: {
type: 'dashed'
}
},
scale: true
},
series: [{
name: '1990',
data: data[0],
type: 'scatter',
symbolSize: function (data) {
return Math.sqrt(data[2]) / 5e2;
},
label: {
emphasis: {
show: true,
formatter: function (param) {
return param.data[3];
},
position: 'top'
}
},
itemStyle: {
normal: {
shadowBlur: 10,
shadowColor: 'rgba(120, 36, 50, 0.5)',
shadowOffsetY: 5,
color: new echarts.graphic.RadialGradient(0.4, 0.3, 1, [{
offset: 0,
color: 'rgb(251, 118, 123)'
}, {
offset: 1,
color: 'rgb(204, 46, 72)'
}])
}
}
}, {
name: '2015',
data: data[1],
type: 'scatter',
symbolSize: function (data) {
return Math.sqrt(data[2]) / 5e2;
},
label: {
emphasis: {
show: true,
formatter: function (param) {
return param.data[3];
},
position: 'top'
}
},
itemStyle: {
normal: {
shadowBlur: 10,
shadowColor: 'rgba(25, 100, 150, 0.5)',
shadowOffsetY: 5,
color: new echarts.graphic.RadialGradient(0.4, 0.3, 1, [{
offset: 0,
color: 'rgb(129, 227, 238)'
}, {
offset: 1,
color: 'rgb(25, 183, 207)'
}])
}
}
}]
};（2）替换test.html中option，自己去掉了app.title = '气泡图';
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8"/>
<title>Title</title>
<!-- 引入 ECharts 文件 -->
<script src="js/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
//测试三：气泡图
var data = [
[[28604,77,17096869,'Australia',1990],[31163,77.4,27662440,'Canada',1990],[1516,68,1154605773,'China',1990],[13670,74.7,10582082,'Cuba',1990],[28599,75,4986705,'Finland',1990],[29476,77.1,56943299,'France',1990],[31476,75.4,78958237,'Germany',1990],[28666,78.1,254830,'Iceland',1990],[1777,57.7,870601776,'India',1990],[29550,79.1,122249285,'Japan',1990],[2076,67.9,20194354,'North Korea',1990],[12087,72,42972254,'South Korea',1990],[24021,75.4,3397534,'New Zealand',1990],[43296,76.8,4240375,'Norway',1990],[10088,70.8,38195258,'Poland',1990],[19349,69.6,147568552,'Russia',1990],[10670,67.3,53994605,'Turkey',1990],[26424,75.7,57110117,'United Kingdom',1990],[37062,75.4,252847810,'United States',1990]],
[[44056,81.8,23968973,'Australia',2015],[43294,81.7,35939927,'Canada',2015],[13334,76.9,1376048943,'China',2015],[21291,78.5,11389562,'Cuba',2015],[38923,80.8,5503457,'Finland',2015],[37599,81.9,64395345,'France',2015],[44053,81.1,80688545,'Germany',2015],[42182,82.8,329425,'Iceland',2015],[5903,66.8,1311050527,'India',2015],[36162,83.5,126573481,'Japan',2015],[1390,71.4,25155317,'North Korea',2015],[34644,80.7,50293439,'South Korea',2015],[34186,80.6,4528526,'New Zealand',2015],[64304,81.6,5210967,'Norway',2015],[24787,77.3,38611794,'Poland',2015],[23038,73.13,143456918,'Russia',2015],[19360,76.5,78665830,'Turkey',2015],[38225,81.4,64715810,'United Kingdom',2015],[53354,79.1,321773631,'United States',2015]]
];
var option = {
backgroundColor: new echarts.graphic.RadialGradient(0.3, 0.3, 0.8, [{
offset: 0,
color: '#f7f8fa'
}, {
offset: 1,
color: '#cdd0d5'
}]),
title: {
text: '1990 与 2015 年各国家人均寿命与 GDP'
},
legend: {
right: 10,
data: ['1990', '2015']
},
xAxis: {
splitLine: {
lineStyle: {
type: 'dashed'
}
}
},
yAxis: {
splitLine: {
lineStyle: {
type: 'dashed'
}
},
scale: true
},
series: [{
name: '1990',
data: data[0],
type: 'scatter',
symbolSize: function (data) {
return Math.sqrt(data[2]) / 5e2;
},
label: {
emphasis: {
show: true,
formatter: function (param) {
return param.data[3];
},
position: 'top'
}
},
itemStyle: {
normal: {
shadowBlur: 10,
shadowColor: 'rgba(120, 36, 50, 0.5)',
shadowOffsetY: 5,
color: new echarts.graphic.RadialGradient(0.4, 0.3, 1, [{
offset: 0,
color: 'rgb(251, 118, 123)'
}, {
offset: 1,
color: 'rgb(204, 46, 72)'
}])
}
}
}, {
name: '2015',
data: data[1],
type: 'scatter',
symbolSize: function (data) {
return Math.sqrt(data[2]) / 5e2;
},
label: {
emphasis: {
show: true,
formatter: function (param) {
return param.data[3];
},
position: 'top'
}
},
itemStyle: {
normal: {
shadowBlur: 10,
shadowColor: 'rgba(25, 100, 150, 0.5)',
shadowOffsetY: 5,
color: new echarts.graphic.RadialGradient(0.4, 0.3, 1, [{
offset: 0,
color: 'rgb(129, 227, 238)'
}, {
offset: 1,
color: 'rgb(25, 183, 207)'
}])
}
}
}]
};
// 使用刚指定的配置项和数据显示图表。
myChart.setOption(option);
</script>
</body>
</html>（3）重新运行Application，访问http://localhost:9999/SpringBoot/first结果
（官网强大~）
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