代码语言：javascript复制
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdn.bootcss.com/echarts/4.2.1-rc1/echarts.min.js" type="text/javascript"></script>
</head>
<body>
<!-- 为ECharts准备一个具备大小（宽高）的Dom -->
<div id="main" class="col-md-12 col-sm-12 col-xs-12" style="height: 400px;"></div>
<script>
// 折线图
$.ajax({
url: "test.json",
data: {},
type: 'GET',
success: function(data) {
console.log(JSON.stringify(data))
hrFun(data.echatX, data.echatY);
},
});
// 心率
var hrChart = echarts.init(document.getElementById("main"));
function hrFun(x_data, y_data) {
hrChart.setOption({
color: ['#3398DB'],
tooltip: {
trigger: 'axis',
axisPointer: { // 坐标轴指示器，坐标轴触发有效
type: 'shadow' // 默认为直线，可选为：'line' | 'shadow'
}
},
legend: {
data: ['心率值']
},
grid: {
left: '3%',
right: '20%',
bottom: '20%',
containLabel: true
},
xAxis: [{
type: 'category',
data: x_data,
}],
yAxis: [{ // 纵轴标尺固定
type: 'value',
scale: true,
name: '心率值',
min : 0, // 就是这两个 最小值
max : 'dataMax', // 最大值
splitNumber: 20,
boundaryGap: [0.2, 0.2]
}],
series: [{
name: '心率',
type: 'line',
data: y_data
}]
}, true);
}
</script>
</body>
</html>json数据
代码语言：javascript复制{
"echatX": ["2020-11-18 00:08:36", "2020-11-18 00:18:42", "2020-11-18 00:28:46", "2020-11-18 00:38:33",
"2020-11-18 00:48:43", "2020-11-18 00:58:36", "2020-11-18 01:08:40", "2020-11-18 01:18:36", "2020-11-18 01:28:42",
"2020-11-18 01:38:39", "2020-11-18 01:48:45", "2020-11-18 01:58:35", "2020-11-18 02:08:34", "2020-11-18 02:18:32",
"2020-11-18 02:28:38", "2020-11-18 02:38:37", "2020-11-18 02:48:44", "2020-11-18 02:58:49", "2020-11-18 03:08:38",
"2020-11-18 03:18:42", "2020-11-18 03:28:35", "2020-11-18 03:38:44", "2020-11-18 03:48:35", "2020-11-18 03:58:50",
"2020-11-18 04:08:40", "2020-11-18 04:18:46", "2020-11-18 04:28:48", "2020-11-18 04:38:46", "2020-11-18 04:48:35",
"2020-11-18 04:58:46", "2020-11-18 05:08:38", "2020-11-18 05:18:34", "2020-11-18 05:28:46", "2020-11-18 05:38:35",
"2020-11-18 05:48:41", "2020-11-18 05:58:38", "2020-11-18 06:08:41", "2020-11-18 06:18:49", "2020-11-18 06:28:46",
"2020-11-18 06:38:43", "2020-11-18 06:48:40", "2020-11-18 06:58:47", "2020-11-18 07:08:36", "2020-11-18 07:18:35",
"2020-11-18 07:28:51", "2020-11-18 07:38:45", "2020-11-18 07:48:39", "2020-11-18 07:58:42", "2020-11-18 08:08:51",
"2020-11-18 08:18:37", "2020-11-18 08:28:43", "2020-11-18 08:38:46", "2020-11-18 08:48:54", "2020-11-18 08:58:52",
"2020-11-18 09:08:51", "2020-11-18 09:18:36", "2020-11-18 09:28:41", "2020-11-18 09:38:42", "2020-11-18 09:48:48",
"2020-11-18 09:58:52", "2020-11-18 10:08:48", "2020-11-18 10:18:38", "2020-11-18 10:28:49", "2020-11-18 10:38:44",
"2020-11-18 10:48:37", "2020-11-18 11:08:49", "2020-11-18 11:18:49"
],
"echatY": [80, 112, 90, 91, 104, 99, 107, 106, 121, 105, 106, 109, 102, 79, 81, 64, 70, 89, 108, 86, 62, 60, 74, 71,
112, 89, 81, 117, 90, 62, 90, 100, 99, 104, 103, 93, 113, 114, 74, 86, 115, 80, 119, 113, 96, 104, 111, 98, 93, 101,
93, 101, 60, 78, 79, 93, 69, 98, 124, 104, 108, 100, 104, 74, 100, 102, 75
],
"echatY2": []
}图片.png
