SpringBoot集成echarts实现k线图功能
作者:HBLOG
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,本文给大家介绍了SpringBoot集成echarts实现k线图功能,文中有详细的代码示例供大家参考,需要的朋友可以参考下
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线图的资料请关注脚本之家其它相关文章!