3【源码】数据可视化：基于 Echarts +Java SpringBoot 实现的动态实时大屏范例-物联网

发布于2022-03-28 21:06 阅读(1782) 评论(0) 点赞(20) 收藏(1)

数据可视化大屏的出现，掀起一番又一番的浪潮，众多企业主纷纷想要打造属于自己的“酷炫吊炸天”的霸道总裁大屏驾驶舱。

之前有小伙伴们建议我出一些视频课程来学习Echarts，这样可以更快上手，所以我就追星赶月的录制了《Echarts - 0基础入门课程》，希望对有需要的小伙伴有帮助。

传送门

YYDatav的数据可视化大屏《精彩案例汇总》（Java SpringBoot&Echarts源码）_YYDataV的博客-CSDN博客

3【源码】数据可视化：基于 Echarts + Java SpringBoot 实现的动态实时大屏范例-物联网平台大屏.zip

效果展示

1、动态效果

2、实时分片数据图

一、确定需求方案

1、确定产品上线部署的屏幕LED分辨率

本案例基于16:9 屏宽比，F11全屏显示。

2、部署方式

基于免安装可执行程序：支持Windows、Linux、Mac等各种操作系统；将程序复制到服务器上即可，无需其它环境依赖；

观看方式：既可在服务器上直接观看程序界面，也可在远程用浏览器打开播放，例如Chrome浏览器、360浏览器等。

二、整体架构设计

前端基于Echarts开源库设计，使用WebStorm编辑器；
后端基于Java Web实现，使用 IDEA 编辑器；
数据传输格式：JSON；
数据源类型：目前采用JSON文件方式，自行添加Mybatis可支持PostgreSQL、MySQL、Oracle、Microsoft SQL Server、SQLite，自行添加Pandas可支持Excel表格等，还可以定制HTTP API接口方式。
数据更新方式：采用http get 轮询方式 。在实际应用中，也可以视情况选择j监测后端数据实时更新，实时推送到前端的方式；

三、编码实现（关键代码）

1、前端html代码


<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>数据大屏</title>
		<link rel="stylesheet" href="css/style.css" />
		<script type="text/javascript" src="js/jquery-1.8.0.min.js"></script>
	</head>
	<body>
		<header>
			物联网平台数据统计案例
			<span id=localtime style=" font-size:14px; position: absolute; right: 30px; top:-20px; "></span>
		</header>
		<div id="content">
			<div class="content_left">
				<div class="dtuplc">
					<div class="dtu">
						<div id="container" style="height: 100%;"></div>						
					</div>
					<div class="plc">
						<div id="container1" style="height: 100%"></div>
					</div>
				</div>
				<!--
                	DTU和PLC完
                -->
                <div class="online">
                	<div class="title"><img src="images/icon01.png" /> 设备在线情况</div>
                	<div class="online_con" id="container2">
                		
                	</div>
                </div>
                <div class="industry">
                	<div class="title"><img src="images/icon02.png" /> 接入工厂类型</div>
                	<div class="industry_con" id="container3"></div>
                </div>
			</div>
			<div class="content_center">
				<div class="center_top">
					<div class="title"><img src="images/icon03.png" /> 平台数据分布</div>
					<div class="center_top_con" id="distribution_map">
					</div>
				</div>
				<div class="center_bot">
					<table class="panel-table"bordercolor="#0d48e0" border="1">
                        <thead bgcolor="#0e4ae0" align="center" >
                        <tr height="40">
                            <th colspan="6"><img src="images/icon04.png" /> 监控列表</th>
                        </tr>
                        </thead>
                        <tbody>
                        <tr class="aaa" align="center">
                        	<td v-for="item in factoryHeader" style="color: #00fcff; font-size: 18px; padding: 5px 0;">{{ item.categories }}</td>
                        </tr>
                        <tr v-for="y in factory.slice(0,6)" class="aaa" style="font-size: 16px;" align="center" >
                            <td>{{ y.company }}</td>
                            <td>{{ y.dtuCnt }}</td>
                            <td>{{ y.plcCnt }}</td>
                            <td>{{ y.dataCnt }}</td>
                            <td>{{ y.alarm }}</td>
                            <td width="250">
                            	<button class="b1 click_pop">报警记录</button>
                            	<button class="b2 click_pop2">历史数据</button>
                            	<button class="b3 click_pop3">组态应用</button>
                            </td>
                        </tr>
                        </tbody>
                    </table>
				</div>
			</div>
			<div class="content_right">
				<div class="report">
					<div class="report1">
						<p>告警信息</p>
						<small>{{alarm.alarm}}条</small>
					</div>
					<div class="report2">
						<p>故障信息</p>
						<small>{{alarm.fault}}条</small>
					</div>
				</div>
				<div class="news_report">
					<div class="title"><img src="images/icon05.png" /> 报警记录</div>
					<div class="news_list">
						<ul>
							<li v-for="item in almMsg.slice(0,3)" class="li02">
							    {{ item.msg }}
							</li>
						</ul>
					</div>
				</div>
				<div class="data_box">
					<div class="title"><img src="images/icon06.png" /> 数据记录</div>
					<div class="data_con" id="container4">
					</div>
				</div>
			</div>
		</div>
		<!--遮罩层-->
		<div class="bgPop"></div>
		<!--弹出框-->
		<div class="pop">
		    <div class="pop-top">
		        报警记录
		        <span class="pop-close">Ｘ</span>
		    </div>
		    <div class="pop-content">
		        <table class="panel-table" bordercolor="#deefff" border="1">
                    <thead bgcolor="#971212" align="center" >
                        <tr height="38">
                            <th>字段</th>
                            <th>字段</th>
                            <th>字段</th>
                            <th>字段</th>
                            <th>字段</th>
                        </tr>
                    </thead>
                    <tbody>
                    <tr class="aaa" style="font-size: 16px;" align="center" >
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                    </tr>
                    <tr class="aaa" style="font-size: 16px;" align="center" >
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                    </tr>
                    <tr class="aaa" style="font-size: 16px;" align="center" >
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                    </tr>
                    
                    <tr class="aaa" style="font-size: 16px;" align="center" >
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                    </tr>
                    </tbody>
                </table>
		    </div>
		    <div class="pop-foot">
		        <input type="button" value="确定" class="pop-cancel pop-close">
		    </div>
		</div>
		<script>
		    $(document).ready(function () {
		        $('.pop-close').click(function () {
		            $('.bgPop,.pop').hide();
		        });
		        $('.click_pop').click(function () {
		            $('.bgPop,.pop').show();
		        });
		    })
		
		</script>
		<!--遮罩层-->
		<div class="bgPop2"></div>
		<!--弹出框-->
		<div class="pop2">
		    <div class="pop-top">
		        历史记录
		        <span class="pop-close">Ｘ</span>
		    </div>
		    <div class="pop-content">
		        <table class="panel-table" bordercolor="#deefff" border="1">
                    <thead bgcolor="#10aaa5" align="center" >
                        <tr height="38">
                            <th>字段</th>
                            <th>字段</th>
                            <th>字段</th>
                            <th>字段</th>
                            <th>字段</th>
                        </tr>
                    </thead>
                    <tbody>
                    <tr class="aaa" style="font-size: 16px;" align="center" >
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                    </tr>
                    <tr class="aaa" style="font-size: 16px;" align="center" >
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                    </tr>
                    <tr class="aaa" style="font-size: 16px;" align="center" >
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                    </tr>
                    
                    <tr class="aaa" style="font-size: 16px;" align="center" >
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                        <td>&nbsp;</td>
                    </tr>
                    </tbody>
                </table>
		    </div>
		    <div class="pop-foot">
		        <input type="button" value="确定" class="pop-cancel pop-close">
		    </div>
		</div>
		<script>
		    $(document).ready(function () {
		        $('.pop-close').click(function () {
		            $('.bgPop2,.pop2').hide();
		        });
		        $('.click_pop2').click(function () {
		            $('.bgPop2,.pop2').show();
		        });
		    })
		
		</script>
		<!--遮罩层-->
		<div class="bgPop3"></div>
		<!--弹出框-->
		<div class="pop3">
		    <div class="pop-top">
		        组态应用
		        <span class="pop-close">Ｘ</span>
		    </div>
		    <div class="pop-content">
		        组态应用
		    </div>
		    <div class="pop-foot">
		        <input type="button" value="确定" class="pop-cancel pop-close">
		    </div>
		</div>
		<script>
		    $(document).ready(function () {
		        $('.pop-close').click(function () {
		            $('.bgPop3,.pop3').hide();
		        });
		        $('.click_pop3').click(function () {
		            $('.bgPop3,.pop3').show();
		        });
		    })
 
 
 
		
		</script>
		<script type="text/javascript" src="js/jquery.min.js"></script>		
		<script type="text/javascript" src="js/echarts.min.js"></script>
		<script type="text/javascript" src="js/china.js"></script>
		<script type="text/javascript" src="js/vue.min.js"></script>
		<script type="text/javascript" src="js/map.js"></script>
		<script type="text/javascript" src="js/times.js"></script>
		<script type="text/javascript" src="js/DTU.js"></script>
		<script type="text/javascript" src="js/PLC.js"></script>
		<script type="text/javascript" src="js/online.js"></script>
		<script type="text/javascript" src="js/industry.js"></script>
		<script type="text/javascript" src="js/data.js"></script>
		<script type="text/javascript" src="js/index.js"></script>
	<script>
		function async_data() {
			async_map_data();
			async_chart_1();
			async_chart_2();
			async_chart_3();
			async_chart_4();
			async_chart_5();
			async_chart_6();
 
		}
		async_data() ;
	</script>
	</body>
</html>

2、前端JS代码


var scn_data={
		alarm:{alarm:10,fault:10},
		dtu:{ on:150,off:150},
		plc:{on:10,off:10},
		industy:{v1:10,v2:11,v3:12,v3:14,v4:15,v5:17,v6:18},
		online:{v1:10,v2:11,v3:12,v3:14,v4:15,v5:17,v6:18},
		almMsg:[{msg:"2017年5月4日市A区12#机器气压过高报警"},
				{msg:"上海市A区12#机器气压过高报警"},
				{msg:"江苏省12#机器气压过高报警"},
				{msg:"河南省郑州市B区12#机器气压过高报警"},
				{msg:"河南省郑州市B区12#机器气压过高报警"},
				{msg:"河南省郑州市B区12#机器气压过高报警"},
				{msg:"河南省郑州市B区12#机器气压过高报警"}
				],
		msgCnt:[{msg:100,alm:20},
			{msg:200,alm:40},
			{msg:300,alm:50},
			{msg:400,alm:35},
			{msg:400,alm:40},
			{msg:400,alm:11},
			{msg:400,alm:66},
			{msg:100,alm:77},
			{msg:200,alm:88},
			{msg:300,alm:22},
			{msg:400,alm:99},
			{msg:400,alm:100},
			{msg:400,alm:111},
			{msg:400,alm:222},
			{msg:100,alm:333},
			{msg:200,alm:11},
			{msg:300,alm:33},
			{msg:400,alm:55},
			{msg:400,alm:77},
			{msg:400,alm:90}
			],
		map:[{area:"山东",cnt:20},
			{area:"浙江",cnt:40},
			{area:"江苏",cnt:50},
			{area:"辽宁",cnt:50}
		],
		factoryHeader:[
	        {"categories":"单位名"},
	        {"categories":"网关数"},
	        {"categories":"设备数"},
	        {"categories":"数据点"},
	        {"categories":"报警"},
	        {"categories":"操作"}
    	],
		factory:[
			{"company":"宝钢","dtuCnt": 200, "plcCnt": 400,"dataCnt": 5000,"alarm": "无"},
	        {"company":"造纸厂","dtuCnt": 3000,"plcCnt": 2000,"dataCnt": 1000,"alarm": "无"},
	        {"company":"锅炉厂","dtuCnt": 1500,"plcCnt": 1000,"dataCnt": 500,"alarm": "无"},
	        {"company":"锅炉二厂","dtuCnt": 1500,"plcCnt": 300,"dataCnt": 1200,"alarm": "温度上限报警>120"},
	        {"company":"锅炉三厂","dtuCnt": 1000,"plcCnt": 800,"dataCnt": 200,"alarm": "无"},
	        {"company":"锅炉三厂","dtuCnt": 1000,"plcCnt": 800,"dataCnt": 200,"alarm": "无"},
	        {"company":"锅炉三厂","dtuCnt": 1000,"plcCnt": 800,"dataCnt": 200,"alarm": "无"},
	        {"company":"锅炉三厂","dtuCnt": 1000,"plcCnt": 800,"dataCnt": 200,"alarm": "无"},
	        {"company":"锅炉三厂","dtuCnt": 1000,"plcCnt": 800,"dataCnt": 200,"alarm": "无"},
	        {"company":"锅炉三厂","dtuCnt": 1000,"plcCnt": 800,"dataCnt": 200,"alarm": "无"}		]
	};
var vm = new Vue({
	el: '#content',
	data: scn_data,
	methods: {
		details: function() {
			
		}
	}
})


$(function() {
    var dom = document.getElementById("container3");
    var myChart = echarts.init(dom);
    var app = {};
    option = null;
    var pathSymbols = {
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32.038694 14.541181 32.038694 32.038694 0 17.920138-14.116509 32.03767-32.038694 32.03767-17.531282 0-32.038694-14.117532-32.038694-32.03767C499.655346 751.941767 514.162758 737.400586 531.694039 737.400586L531.694039 737.400586z',
        nongye: 'path://M225.792 1024h-2.56c-17.408-1.536-30.72-16.384-29.696-34.304 0.512-4.096 8.192-107.008 65.024-249.344 52.224-130.56 157.696-321.024 362.496-485.376 13.824-11.264 33.792-8.704 45.056 5.12 11.264 13.824 8.704 33.792-5.12 45.056-371.2 297.472-403.456 685.568-403.968 689.152-0.512 16.896-14.848 29.696-31.232 29.696zM688.128 318.976c-30.72 0-56.832-9.728-72.704-32.256-11.776-16.896-25.6-53.76 12.288-114.176 23.04-36.864 60.928-74.24 105.984-105.472C778.752 35.84 827.392 13.312 869.376 4.608c69.632-14.848 99.84 11.264 111.104 28.16 42.496 60.928-27.648 156.672-118.272 219.648-56.32 39.424-122.368 66.56-174.08 66.56z m219.648-254.976c-6.656 0-14.848 1.024-25.088 3.072-33.792 7.168-74.752 26.112-112.64 52.736-37.888 26.112-70.144 57.856-88.064 87.04-15.872 25.088-16.384 39.936-13.824 43.52 7.168 10.24 72.704 8.704 158.208-50.688s109.568-120.32 102.4-130.56c-2.048-2.56-8.192-5.12-20.992-5.12zM697.856 610.816c-19.968 0-40.448-1.536-60.928-4.096-54.784-7.168-105.472-23.552-142.336-45.568-61.44-36.352-66.048-75.776-63.488-95.744 2.56-20.48 17.408-56.832 86.016-75.776 41.984-11.264 94.72-13.824 149.504-6.656 109.568 14.336 215.552 67.584 205.824 141.312-7.68 59.904-86.016 86.528-174.592 86.528z m-92.16-167.936c-26.624 0-51.2 3.072-71.168 8.192-28.672 7.68-38.912 18.944-39.424 22.528-0.512 4.096 6.656 16.896 32.256 32.256 29.696 17.408 72.704 31.232 118.272 36.864 103.424 13.824 161.792-14.848 163.84-27.648 1.536-12.288-47.616-55.808-151.04-69.12-17.92-2.048-35.84-3.072-52.736-3.072z m235.52 77.312zM580.608 880.128c-31.744 0-65.024-4.096-97.792-11.776-53.76-12.288-102.4-33.28-137.728-58.368-57.856-41.984-58.368-81.408-53.76-101.376 4.608-19.968 22.528-55.296 92.672-67.584 42.496-7.68 95.744-5.12 149.504 7.68 108.032 24.576 208.384 87.552 191.488 159.744-11.264 50.688-72.192 71.68-144.384 71.68z m-145.408-179.2c-14.336 0-28.16 1.024-39.936 3.072-29.184 5.12-40.96 14.848-41.472 18.944-1.024 4.096 5.12 17.408 29.184 35.328 27.648 19.968 69.632 37.888 114.176 48.128 101.376 23.552 162.816 0 165.376-11.776 2.56-12.288-41.984-59.904-143.36-82.944-28.672-7.168-57.856-10.752-83.968-10.752z m258.56 100.352zM445.952 475.648c-21.504 0-56.832-10.24-87.04-68.096-19.968-38.4-33.28-89.6-37.888-144.896-4.608-54.784 0.512-108.032 14.336-148.992C357.376 46.08 394.752 33.28 415.232 31.744c20.48-1.536 59.392 5.12 92.16 68.096 19.968 38.4 33.28 89.6 37.888 144.896 8.704 110.08-20.992 224.768-94.72 230.912h-4.608z m-25.088-379.904s-0.512 0 0 0c-4.096 0.512-15.36 10.24-25.088 38.4-10.752 32.768-14.848 77.824-11.264 123.392 3.584 46.08 14.848 89.6 30.72 120.32 13.824 26.624 26.624 34.304 30.72 33.792 12.288-1.024 44.544-58.368 35.84-161.792-3.584-46.08-14.848-89.6-30.72-120.32-13.824-26.112-26.112-33.792-30.208-33.792zM298.496 687.616c-55.808 0-127.488-48.64-181.76-111.104-36.352-41.472-63.488-87.04-76.8-128-22.016-67.584 0.512-100.352 15.872-113.664 55.808-48.64 158.72 10.24 231.424 93.696C359.936 512 404.48 622.08 348.672 670.72c-14.848 11.264-31.744 16.896-50.176 16.896z m28.672-41.984zM104.96 380.416c-3.584 0-6.144 0.512-7.68 2.048-3.072 2.56-6.144 17.408 3.072 45.568 10.752 32.768 34.304 71.168 64.512 105.984 68.608 78.336 131.584 95.744 140.8 87.552 9.216-8.192 1.024-73.216-67.584-151.552-57.856-67.072-112.64-89.6-133.12-89.6z',
        dianchang: 'path://M921.2 495.4l-320-137.1c-8.4-3.6-16.9-5.2-25.2-5.2V96c0-18.5-15.2-32-32-32-4.7 0-9.6 1.1-14.3 3.4L99.4 302.3c-21.7 10.8-35.4 33-35.4 57.2V896c0 35.3 28.7 64 64 64h768c35.3 0 64-28.7 64-64V554.2c0-25.6-15.3-48.7-38.8-58.8zM352 896v-96c0-17.7-14.3-32-32-32s-32 14.3-32 32v96H128V359.6L512 150v746H352z m544 0H768v-32c0-17.7-14.3-32-32-32s-32 14.3-32 32v32H576l0.2-478.9L896 554.2V896z" p-id="937"></path><path d="M320 416m-32 0a32 32 0 1 0 64 0 32 32 0 1 0-64 0Z" p-id="938"></path><path d="M320 544m-32 0a32 32 0 1 0 64 0 32 32 0 1 0-64 0ZM320 672m-32 0a32 32 0 1 0 64 0 32 32 0 1 0-64 0ZM736 608m-32 0a32 32 0 1 0 64 0 32 32 0 1 0-64 0ZM736 736m-32 0a32 32 0 1 0 64 0 32 32 0 1 0-64 0Z',
        guolu: 'path://M580.208986 276.950659c37.409005 53.553707 53.656037 223.713154-8.901741 58.421574C517.873266 194.182584 541.206694 138.967028 541.206694 138.967028c-55.697533 42.271756-48.276517 140.896984-35.808554 172.054611 12.473079 31.178093-34.728966-52.560076-100.635001-47.717791 74.810846 102.265128 55.650461 211.32501 24.928762 211.32501-15.141862 0-34.70543-6.818289-49.635467-48.251957-5.222955 12.922311-15.423271 33.945113-12.71151 87.197968 3.705392 71.956845 39.682791 128.97956 95.045703 151.420665 14.976086 6.073322 31.378661 9.587356 48.942689 10.211573 30.264281-4.687766 49.112558-8.894577 89.208764-16.051581 17.643845-6.962575 29.730115-20.964474 33.499975-25.039279C719.522915 540.614711 636.811122 318.196039 580.208986 276.950659zM533.751908 793.104259c-1.214664 0-2.428306-0.010233-3.645017-0.031722-41.398876-0.706081-81.21879-13.30605-115.152647-36.433794-35.785018-24.387433-62.799278-59.289338-78.121242-100.933807l-1.412163-3.839445 8.640798-3.184529 1.414209 3.844561c28.830629 78.359672 101.365642 129.913838 184.789657 131.340327 1.243317 0.021489 2.496867 0.031722 3.731998 0.031722 85.079724 0 156.778696-51.330062 191.797257-137.309272l1.543146-3.790326 8.529257 3.473101-1.544169 3.791349c-18.99768 46.65253-49.042973 84.425831-86.884836 109.23589C613.705891 781.414009 574.39456 793.104259 533.751908 793.104259z',
    };
 
    option = {
        tooltip: {
            trigger: 'axis',
            axisPointer: {
                type: 'none'
            },
            formatter: function (params) {
                return params[0].name + ': ' + params[0].value;
            }
        },
        xAxis: {
            data: ['锅炉', '环保', '电厂', '供暖', '采掘', '农业', ],
            axisTick: {show: false},
            axisLine: {show: false},
            axisLabel: {
                textStyle: {
                    color: '#e54035'
                }
            }
        },
        yAxis: {
            splitLine: {show: false},
            axisTick: {show: false},
            axisLine: {show: false},
            axisLabel: {show: false}
        },
        color: ['#e54035'],
        series: [{
            name: 'hill',
            type: 'pictorialBar',
 
            barCategoryGap: '-130%',
            // symbol: 'path://M0,10 L10,10 L5,0 L0,10 z',
            symbol: 'path://M0,10 L10,10 C5.5,10 5.5,5 5,0 C4.5,5 4.5,10 0,10 z',
            itemStyle: {
                normal: {
                    opacity: 0.5
                },
                emphasis: {
                    opacity: 1
                }
            },
            data: [vm.industy.v1, vm.industy.v2, vm.industy.v3, vm.industy.v4, vm.industy.v5, vm.industy.v6],
            z: 10
        }, {
            name: 'glyph',
            type: 'pictorialBar',
            barGap: '-100%',
            symbolPosition: 'end',
            symbolSize: 50,
            symbolOffset: [0, '-120%'],
            data: [{
                value: vm.industy.v1,
                symbol: pathSymbols.guolu,
                symbolSize: [35, 35]
            }, {
                value: vm.industy.v2,
                symbol: pathSymbols.huanbao,
                symbolSize: [30, 30]
            }, {
                value: vm.industy.v3,
                symbol: pathSymbols.dianchang,
                symbolSize: [25, 30]
            }, {
                value: vm.industy.v4,
                symbol: pathSymbols.gongnuan,
                symbolSize: [30, 20]
            }, {
                value: vm.industy.v5,
                symbol: pathSymbols.caijue,
                symbolSize: [40, 25]
            }, {
                value: vm.industy.v6,
                symbol: pathSymbols.nongye,
                symbolSize: [30, 35]
            }]
        }]
    };;
    if (option && typeof option === "object") {
        myChart.setOption(option, true);
    }
});
 
 
var chart_5ElementId = 'container3';
// var chartMapElement = document.getElementById(chartMapElementId); 这种有问题，不显示图
var jsonFile5Name = 'json/chart_5.json';
 
function get_value(data) {
    var list = new Array();
    for (i=0; i<data.length; i++) {
        list.push(data[i]["value"])
    }
    console.log(list)
    return list
}
 
 
function async_chart_5() {
 
    // 异步加载数据
    $.getJSON(jsonFile5Name).done(function (data) {
        var chartMapElement = document.getElementById(chart_5ElementId);
        console.log("async_data", chart_5ElementId, jsonFile5Name)
        var myChart = echarts.init(chartMapElement);
        console.log(data)
        myChart.setOption({
            series: [{
                data: get_value(data)
            }, {
                data: data
            }]
        });
    });//end $.getJSON
}

3、后端Java代码


@RestController
@RequestMapping("/json")
public class Process {
 
    @RequestMapping("/{filename}")
    public String json(@PathVariable("filename") String filename) throws Exception {
        System.out.println(filename);
        ChangeJSON(filename);
 
        String jsonStr = readJSON(filename);
        System.out.println(jsonStr);
        return jsonStr;
    }

4、数据通信 JSON


[
    {
        "name": "智能摄像头",
        "value": 770
    },
    {
        "name": "智能门铃",
        "value": 616
    },
    {
        "name": "智能门磁",
        "value": 876
    },
    {
        "name": "智能空调",
        "value": 670
    },
    {
        "name": "智能窗帘",
        "value": 740
    },
    {
        "name": "智能音箱",
        "value": 939
    }
]