我要评论1.什么是echats？
echarts是一款基于javascript的数据可视化图表库，提供直观，生动，可交互，可个性化定制的数据可视化图表。 echarts最初由百度团队开源，并于2018年初捐赠给apache基金会，成为asf孵化级项目。 2021年1月26日晚，apache基金会官方宣布echarts项目正式毕业。
2.代码工程
实验目的
实现股票日k线图
pom.xml
<?xml version="1.0" encoding="utf-8"?>
<project xmlns="http://maven.apache.org/pom/4.0.0"
xmlns:xsi="http://www.w3.org/2001/xmlschema-instance"
xsi:schemalocation="http://maven.apache.org/pom/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactid>springboot-demo</artifactid>
<groupid>com.et</groupid>
<version>1.0-snapshot</version>
</parent>
<modelversion>4.0.0</modelversion>
<artifactid>echarts</artifactid>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupid>org.springframework.boot</groupid>
<artifactid>spring-boot-starter-web</artifactid>
</dependency>
<dependency>
<groupid>org.springframework.boot</groupid>
<artifactid>spring-boot-autoconfigure</artifactid>
</dependency>
<dependency>
<groupid>org.springframework.boot</groupid>
<artifactid>spring-boot-starter-test</artifactid>
<scope>test</scope>
</dependency>
<dependency>
<groupid>org.springframework.boot</groupid>
<artifactid>spring-boot-starter-thymeleaf</artifactid>
</dependency>
<dependency>
<groupid>org.projectlombok</groupid>
<artifactid>lombok</artifactid>
</dependency>
</dependencies>
</project>
controller
访问根目录，跳转到首页
package com.et.echats.controller;
import org.springframework.stereotype.controller;
import org.springframework.web.bind.annotation.requestmapping;
@controller
public class helloworldcontroller {
@requestmapping("/")
public string index()
{
return"index";
}
}
index.html
常量data0 可以通过接口从后端获取，这里直接用静态数据
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>flask+echarts项目</title>
<!-- 导入下载的 echarts.min.js -->
<script src="../js/echarts.min.js"></script>
</head>
<body>
<div id="main" style="width:100%;height:500px;"></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'));
// 自定义图表的宽高
// var mychart=echarts.init(document.getelementbyid('main'),null,{width:500,height:400});
// 跟随浏览器的宽度自适应图表大小
// var mychart=echarts.init(document.getelementbyid('main'));
// window.addeventlistener('resize',function(){mychart.resize();});
const upcolor = "#ec0000";
const upbordercolor = "#8a0000";
const downcolor = "#00da3c";
const downbordercolor = "#008f28";
// 拆分数据
function splitdata(rawdata) {
// 类型年份数据
const categorydata = [];
// 开盘价，收盘价，最低价，最高价
const values = [];
for (var i = 0; i < rawdata.length; i++) {
categorydata.push(rawdata[i].splice(0, 1)[0]);
values.push(rawdata[i]);
}
return {
categorydata: categorydata,
values: values
}
};
// 数据解释：时间，开盘价，收盘价，最低价，最高价
const data0 = splitdata([
['2023/1/24', 2320.26, 2320.26, 2287.3, 2362.94],
['2023/1/25', 2300, 2291.3, 2288.26, 2308.38],
['2023/1/28', 2295.35, 2346.5, 2295.35, 2346.92],
['2023/1/29', 2347.22, 2358.98, 2337.35, 2363.8],
['2023/1/30', 2360.75, 2382.48, 2347.89, 2383.76],
['2023/1/31', 2383.43, 2385.42, 2371.23, 2391.82],
['2023/2/1', 2377.41, 2419.02, 2369.57, 2421.15],
['2023/2/4', 2425.92, 2428.15, 2417.58, 2440.38],
['2023/2/5', 2411, 2433.13, 2403.3, 2437.42],
['2023/2/6', 2432.68, 2434.48, 2427.7, 2441.73],
['2023/2/7', 2430.69, 2418.53, 2394.22, 2433.89],
['2023/2/8', 2416.62, 2432.4, 2414.4, 2443.03],
['2023/2/18', 2441.91, 2421.56, 2415.43, 2444.8],
['2023/2/19', 2420.26, 2382.91, 2373.53, 2427.07],
['2023/2/20', 2383.49, 2397.18, 2370.61, 2397.94],
['2023/2/21', 2378.82, 2325.95, 2309.17, 2378.82],
['2023/2/22', 2322.94, 2314.16, 2308.76, 2330.88],
['2023/2/25', 2320.62, 2325.82, 2315.01, 2338.78],
['2023/2/26', 2313.74, 2293.34, 2289.89, 2340.71],
['2023/2/27', 2297.77, 2313.22, 2292.03, 2324.63],
['2023/2/28', 2322.32, 2365.59, 2308.92, 2366.16],
['2023/3/1', 2364.54, 2359.51, 2330.86, 2369.65],
['2023/3/4', 2332.08, 2273.4, 2259.25, 2333.54],
['2023/3/5', 2274.81, 2326.31, 2270.1, 2328.14],
['2023/3/6', 2333.61, 2347.18, 2321.6, 2351.44],
['2023/3/7', 2340.44, 2324.29, 2304.27, 2352.02],
['2023/3/8', 2326.42, 2318.61, 2314.59, 2333.67],
['2023/3/11', 2314.68, 2310.59, 2296.58, 2320.96],
['2023/3/12', 2309.16, 2286.6, 2264.83, 2333.29],
['2023/3/13', 2282.17, 2263.97, 2253.25, 2286.33],
['2023/3/14', 2255.77, 2270.28, 2253.31, 2276.22],
['2023/3/15', 2269.31, 2278.4, 2250, 2312.08],
['2023/3/18', 2267.29, 2240.02, 2239.21, 2276.05],
['2023/3/19', 2244.26, 2257.43, 2232.02, 2261.31],
['2023/3/20', 2257.74, 2317.37, 2257.42, 2317.86],
['2023/3/21', 2318.21, 2324.24, 2311.6, 2330.81],
['2023/3/22', 2321.4, 2328.28, 2314.97, 2332],
['2023/3/25', 2334.74, 2326.72, 2319.91, 2344.89],
['2023/3/26', 2318.58, 2297.67, 2281.12, 2319.99],
['2023/3/27', 2299.38, 2301.26, 2289, 2323.48],
['2023/3/28', 2273.55, 2236.3, 2232.91, 2273.55],
['2023/3/29', 2238.49, 2236.62, 2228.81, 2246.87],
['2023/4/1', 2229.46, 2234.4, 2227.31, 2243.95],
['2023/4/2', 2234.9, 2227.74, 2220.44, 2253.42],
['2023/4/3', 2232.69, 2225.29, 2217.25, 2241.34],
['2023/4/8', 2196.24, 2211.59, 2180.67, 2212.59],
['2023/4/9', 2215.47, 2225.77, 2215.47, 2234.73],
['2023/4/10', 2224.93, 2226.13, 2212.56, 2233.04],
['2023/4/11', 2236.98, 2219.55, 2217.26, 2242.48],
['2023/4/12', 2218.09, 2206.78, 2204.44, 2226.26],
['2023/4/15', 2199.91, 2181.94, 2177.39, 2204.99],
['2023/4/16', 2169.63, 2194.85, 2165.78, 2196.43],
['2023/4/17', 2195.03, 2193.8, 2178.47, 2197.51],
['2023/4/18', 2181.82, 2197.6, 2175.44, 2206.03],
['2023/4/19', 2201.12, 2244.64, 2200.58, 2250.11],
['2023/4/22', 2236.4, 2242.17, 2232.26, 2245.12],
['2023/4/23', 2242.62, 2184.54, 2182.81, 2242.62],
['2023/4/24', 2187.35, 2218.32, 2184.11, 2226.12],
['2023/4/25', 2213.19, 2199.31, 2191.85, 2224.63],
['2023/4/26', 2203.89, 2177.91, 2173.86, 2210.58],
['2023/5/2', 2170.78, 2174.12, 2161.14, 2179.65],
['2023/5/3', 2179.05, 2205.5, 2179.05, 2222.81],
['2023/5/6', 2212.5, 2231.17, 2212.5, 2236.07],
['2023/5/7', 2227.86, 2235.57, 2219.44, 2240.26],
['2023/5/8', 2242.39, 2246.3, 2235.42, 2255.21],
['2023/5/9', 2246.96, 2232.97, 2221.38, 2247.86],
['2023/5/10', 2228.82, 2246.83, 2225.81, 2247.67],
['2023/5/13', 2247.68, 2241.92, 2231.36, 2250.85],
['2023/5/14', 2238.9, 2217.01, 2205.87, 2239.93],
['2023/5/15', 2217.09, 2224.8, 2213.58, 2225.19],
['2023/5/16', 2221.34, 2251.81, 2210.77, 2252.87],
['2023/5/17', 2249.81, 2282.87, 2248.41, 2288.09],
['2023/5/20', 2286.33, 2299.99, 2281.9, 2309.39],
['2023/5/21', 2297.11, 2305.11, 2290.12, 2305.3],
['2023/5/22', 2303.75, 2302.4, 2292.43, 2314.18],
['2023/5/23', 2293.81, 2275.67, 2274.1, 2304.95],
['2023/5/24', 2281.45, 2288.53, 2270.25, 2292.59],
['2023/5/27', 2286.66, 2293.08, 2283.94, 2301.7],
['2023/5/28', 2293.4, 2321.32, 2281.47, 2322.1],
['2023/5/29', 2323.54, 2324.02, 2321.17, 2334.33],
['2023/5/30', 2316.25, 2317.75, 2310.49, 2325.72],
['2023/5/31', 2320.74, 2300.59, 2299.37, 2325.53],
['2023/6/3', 2300.21, 2299.25, 2294.11, 2313.43],
['2023/6/4', 2297.1, 2272.42, 2264.76, 2297.1],
['2023/6/5', 2270.71, 2270.93, 2260.87, 2276.86],
['2023/6/6', 2264.43, 2242.11, 2240.07, 2266.69],
['2023/6/7', 2242.26, 2210.9, 2205.07, 2250.63],
['2023/6/13', 2190.1, 2148.35, 2126.22, 2190.1]
]);
// 计算ma（移动平均值）
function calaculatema(daycount) {
var result = [];
for (var i = 0, len = data0.values.length; i < len; i++) {
if (i < daycount) {
result.push("-");
continue;
}
var sum = 0;
for (var j = 0; j < daycount; j++) {
sum += data0.values[i - j][1];
}
result.push(math.round(sum/daycount));
}
return result
};
// 指定图表的配置项和数据
var option = {
// 图表标题配置
title: {
text: 'k line graph'
},
// 提示框配置
tooltip: {
// 是否显示提示框
show: true,
// 触发类型，axis 移动到坐标轴就触发
trigger: "axis",
// 坐标轴上提示点设置
axispointer: {
type: "cross"
}
},
// 图例配置
legend: {
data: ['day k', 'ma5', 'ma10', 'ma20', 'ma30']
},
// x 轴配置项
xaxis: {
type: "category",
data: data0.categorydata,
boundarygap: false,
axisline: {
onzero: false
},
splitline: {
show: true
},
min: "datamin",
max: "datamax"
},
// y 轴配置项
yaxis: {
scale: true,
splitarea: {
show: true
}
},
datazoom: [{
type: "inside",
start: 50,
end: 100
},
{
show: true,
type: "slider",
top: "90%",
start: 50,
end: 100
}
],
// 系列配置，根据不同图表有不同的配置
series: [
{
name: "day k",
// 图表类型
type: 'candlestick',
// 数据内容
data: data0.values,
// k 线图的图形样式
itemstyle: {
// 阳线 图形的颜色
color: upcolor,
// 阴线 图形的颜色。
color0: downcolor,
// 阳线 图形的描边颜色
bordercolor: upbordercolor,
// 阴线 图形的描边颜色
bordervolor0: downbordercolor
},
// 标记点配置
markpoint: {
// 标注的文本
label: {
// 标签内容格式器，支持字符串模板和回调函数两种形式，字符串模板与回调函数返回的字符串均支持用 \n 换行。
// 参数 params 是 formatter 需要的单个数据集, value是传入的数据值。
formatter: function(param) {
return param != null ? math.round(param.value) + "" : "";
}
},
// 标注的数据数组。每个数组项是一个对象
data: [
// 用 coord 属性指定数据在相应坐标系上的坐标位置
{
name: "mark",
// 标注的坐标。坐标格式视系列的坐标系而定
coord: ['2023/5/31', 2300],
value: 2300,
itemstyle: {
color: 'rgb(41,60,85)'
}
},
// 特殊的标注类型，用于标注最大值最小值等
{
name: "highest value",
type: "max",
// 在使用 type 时有效，用于指定在哪个维度上指定最大值最小值。
valuedim: "highest",
},
{
name: 'lowest value',
type: 'min',
valuedim: 'lowest'
},
{
name: 'average value on close',
type: 'average',
valuedim: 'close'
}
],
// 提示框浮层内容格式器，支持字符串模板和回调函数两种形式。
tooltip:{
// params 是 formatter 需要的数据集
formatter:function(param){
// name数据名，类目名,data传入的原始数据项
return param.name+"<br>"+(param.data.coord || "")
}
}
},
markline:{
// 标线两端的标记类型，可以是一个数组分别指定两端，也可以是单个统一指定
symbol:['none','none'],
// 标线的数据数组。每个数组项可以是一个两个值的数组，分别表示线的起���和终点，每一项是一个对象
data:[
[
// 定义从最小值到最大值的线
{
name:"from lowest to highest",
type:"min",
valuedim:"lowest",
symbol:"circle",
symbolsize: 10,
label:{show:false},
emphasis:{label:{show:false}}
},
{
type:"max",
valuedim:"highest",
symbol:"circle",
symbolsize:10,
label:{show:false},
emphasis:{label:{show:false}}
},
],
// 最小值水平线
{
name:"min line on close",
type:"min",
valuedim:"close"
},
// 最大值水平线
{
name:"max line on close",
type:"max",
valuedim:"close"
},
],
}
},
{
name:"ma5",
type:"line",
data:calaculatema(5),
smooth:true,
linestyle:{opacity:0.5}
},
{
name:"ma10",
type:"line",
data:calaculatema(10),
smooth:true,
linestyle:{opacity:0.5}
},
{
name:"ma20",
type:"line",
data:calaculatema(20),
smooth:true,
linestyle:{opacity:0.5}
},
{
name:"ma30",
type:"line",
data:calaculatema(30),
smooth:true,
linestyle:{opacity:0.5}
},
]
};
//使用刚指定的配置项和数据显示图像
mychart.setoption(option);
</script>
</body>
</html>
application.yaml
spring.thymeleaf.cache=false spring.thymeleaf.suffix=.html
以上只是一些关键代码，所有代码请参见下面代码仓库
代码仓库
https://github.com/harries/springboot-demo
3.测试
- 启动spring boot应用
- 访问http://127.0.0.1:8080/
以上就是springboot集成echarts实现k线图功能的详细内容，更多关于springboot echarts k线图的资料请关注代码网其它相关文章！
发表评论