echarts折线图📈之性能数据展示在线工具
<!-- run -->
<div id="app">
<div class="container">
<div id="input">
<textarea
name="cpu"
id="cpu-input"
cols="30"
rows="30"
placeholder="请在这里填写CPU数据"
></textarea>
<span style="margin-left: 15px"> </span>
<textarea
name="memery"
id="memery-input"
cols="30"
rows="30"
placeholder="请在这里填写内存数据"
></textarea>
</div>
<div class="file-select-bg">
<div>
<label for="file">选择CPU数据: </label>
<input
type="file"
accept=".txt"
name="选择CPU数据"
id="selectCPU"
onchange="selectCpuData()"
/>
</div>
<div>
<label for="file">选择内存数据: </label>
<input
type="file"
accept=".txt"
name="选择内存数据"
id="selectMem"
onchange="selectMemData()"
/>
</div>
</div>
<div class="button" onclick="clickAction()">生成图表</div>
<div id="cpu"></div>
<div class="tips" id="cpu-tips"></div>
<div id="memery"></div>
<div class="tips" id="memery-tips"></div>
</div>
</div>
<script src="https://cdn.bootcss.com/echarts/5.2.1/echarts.min.js"></script>
<script type="text/javascript">
var cpuData = [];
var memeryData = [];
window.onload=function renderDefaultData(){
document.getElementById("cpu-input").innerText = ' [["19:28:11", 0.30],["19:28:12", 6.35],["19:28:13", 7.35],["19:28:14", 7.22],["19:28:15", 7.42],["19:28:16", 6.57],["19:28:17", 5.75],["19:28:18", 6.47],["19:28:19", 6.22],["19:28:20", 6.10],["19:28:21", 6.07],["19:28:22", 5.90],["19:28:23", 5.68],["19:28:24", 5.77],["19:28:25", 6.38],["19:28:26", 5.28],["19:28:27", 6.67],["19:28:28", 5.90],["19:28:29", 6.17],["19:28:30", 5.20],["19:28:31", 5.90],["19:28:32", 7.47],["19:28:33", 6.93],["19:28:34", 6.88],["19:28:35", 8.10],["19:28:36", 7.48],["19:28:37", 7.27],["19:28:38", 5.60],["19:28:39", 5.70],["19:28:40", 5.57],["19:28:41", 5.60],["19:28:42", 5.83],["19:28:43", 5.93],["19:28:44", 6.53],["19:28:45", 6.45],["19:28:46", 6.67],["19:28:47", 6.02],["19:28:48", 6.73],["19:28:49", 6.47],["19:28:50", 6.03],["19:28:51", 5.35],["19:28:52", 5.58],["19:28:53", 5.45],["19:28:54", 5.70],["19:28:55", 6.42],["19:28:56", 7.45],["19:28:57", 8.12],["19:28:58", 8.03],["19:28:59", 6.25],["19:29:00", 6.47],["19:29:01", 6.38],["19:29:02", 7.08],["19:29:03", 6.78],["19:29:04", 6.25],["19:29:05", 5.88],["19:29:06", 6.33],["19:29:07", 6.75]] ';
document.getElementById("memery-input").innerText = '[["19:28:11", 13.17],["19:28:12", 15.61],["19:28:13", 18.72],["19:28:14", 18.94],["19:28:15", 19.17],["19:28:16", 19.42],["19:28:17", 19.94],["19:28:18", 16.69],["19:28:19", 16.11],["19:28:20", 16.05],["19:28:21", 16.05],["19:28:22", 15.84],["19:28:23", 17.16],["19:28:24", 16.94],["19:28:25", 17.38],["19:28:26", 16.92],["19:28:27", 17.97],["19:28:28", 18.02],["19:28:29", 27.70],["19:28:30", 18.80],["19:28:31", 18.61],["19:28:32", 17.77],["19:28:33", 16.58],["19:28:34", 16.56],["19:28:35", 15.97],["19:28:36", 16.24],["19:28:37", 16.03],["19:28:38", 14.88],["19:28:39", 14.83],["19:28:40", 14.83],["19:28:41", 14.86],["19:28:42", 16.00],["19:28:43", 14.84],["19:28:44", 16.03],["19:28:45", 14.89],["19:28:46", 16.05],["19:28:47", 16.27],["19:28:48", 16.03],["19:28:49", 16.03],["19:28:50", 16.03],["19:28:51", 16.03],["19:28:52", 16.03],["19:28:53", 16.06],["19:28:54", 16.05],["19:28:55", 16.25],["19:28:56", 16.03],["19:28:57", 16.03],["19:28:58", 16.30],["19:28:59", 14.94],["19:29:00", 14.91],["19:29:01", 14.88],["19:29:02", 16.56],["19:29:03", 15.49],["19:29:04", 16.61],["19:29:05", 16.61],["19:29:06", 16.61],["19:29:07", 16.42]]';
clickAction();
}
function selectCpuData() {
var file = document.getElementById("selectCPU").files[0];
var reader = new FileReader();
reader.readAsText(file, "utf-8");
reader.onload = function () {
document.getElementById("cpu-input").innerText = this.result;
};
}
function selectMemData() {
var file = document.getElementById("selectMem").files[0];
var reader = new FileReader();
reader.readAsText(file, "utf-8");
reader.onload = function () {
document.getElementById("memery-input").innerText = this.result;
};
}
function clickAction() {
const cpuText = document.getElementById("cpu-input").value;
if (cpuText.length) {
cpuData = JSON.parse(cpuText);
}
if (cpuData.length) {
parserCpuData();
drawTab(true);
}
const memText = document.getElementById("memery-input").value;
if (memText.length) {
memeryData = JSON.parse(memText);
}
if (memeryData.length) {
parserMemeryData();
drawTab(false);
}
}
function drawTab(isDrawCPU) {
let title = isDrawCPU ? "CPU性能变化趋势图" : "内存性能变化趋势图";
echarts
.init(document.getElementById(isDrawCPU ? "cpu" : "memery"))
.dispose();
var myChart = isDrawCPU
? echarts.init(document.getElementById("cpu"))
: echarts.init(document.getElementById("memery"));
let tabData = isDrawCPU ? cpuData : memeryData;
const dateList = tabData.map(function (item) {
return item[0];
});
const valueList = tabData.map(function (item) {
return item[1];
});
const formatter = isDrawCPU
? "CPU占用 <span style='color:red'> {c}% </span> "
: "内存占用 <span style='color:red'> {c}MB </span> ";
let option = {
visualMap: [
{
show: false,
type: "continuous",
seriesIndex: 0,
dimension: 0,
min: 0,
max: dateList.length - 1,
},
],
title: [
{
top: "5%",
left: "center",
text: title,
},
],
tooltip: {
trigger: "axis",
formatter: formatter,
axisPointer: {
type: "cross",
crossStyle: {
color: "#0cf",
type: "solid",
},
},
show: true,
},
xAxis: [
{
data: dateList,
name: "时间",
},
],
yAxis: [
{
gridIndex: 0,
name: isDrawCPU ? "CPU(%)" : "内存(MB)",
},
],
grid: [
{
top: "20%",
},
],
series: [
{
type: "line",
showSymbol: true,
data: valueList,
xAxisIndex: 0,
yAxisIndex: 0,
},
],
};
myChart.setOption(option, true);
}
function parserCpuData() {
if (!cpuData.length) {
return;
}
var cpuArr = [];
for (let index = 0; index < cpuData.length; index++) {
const element = cpuData[index];
const cpu = element[1];
cpuArr.push(cpu);
}
const max = this.getMaxValue(cpuArr);
const min = this.getMinValue(cpuArr);
const avg = this.getAvgValue(cpuArr);
document.getElementById(
"cpu-tips"
).innerHTML = `最大值: <strong>${max}</strong>% 最小值: <strong>${min}</strong>% 平均值: <strong>${avg.toFixed(
2
)}</strong>% `;
}
function parserMemeryData() {
if (!memeryData.length) {
return;
}
var memArr = [];
for (let index = 0; index < memeryData.length; index++) {
const element = memeryData[index];
const mem = element[1];
memArr.push(mem);
}
const max = this.getMaxValue(memArr);
const min = this.getMinValue(memArr);
const avg = this.getAvgValue(memArr);
document.getElementById(
"memery-tips"
).innerHTML = `最大值: <strong>${max}</strong>MB 最小值: <strong>${min}</strong>MB 平均值: <strong>${avg.toFixed(
2
)}</strong>MB `;
}
function getMaxValue(arr) {
var max = arr[0];
for (var i = 1; i < arr.length; i++) {
if (max < arr[i]) max = arr[i];
}
return max;
}
function getMinValue(arr) {
var min = arr[0];
for (var i = 1; i < arr.length; i++) {
if (min > arr[i]) min = arr[i];
}
return min;
}
function getAvgValue(arr) {
var sum = 0;
for (var i = 1; i < arr.length; i++) {
sum += arr[i];
}
return sum / arr.length;
}
</script>
<style>
.button {
margin: 30px;
margin-left: 150px;
font-size: 25px;
color: white;
text-align: center;
width: 180px;
height: 50px;
line-height: 50px;
cursor: pointer;
border-radius: 5px;
background-color: #7799ff;
}
.container {
width: 100%;
height: 100%;
}
#cpu {
width: 500px;
height: 500px;
}
#memery {
margin-top: 50px;
width: 500px;
height: 500px;
}
.tips {
margin-top: -10px;
margin-left: 10px;
font-size: 20px;
color: orangered;
}
.file-select-bg {
width: 800px;
height: 60px;
display: flex;
flex-direction: row;
align-items: center;
justify-content: space-around;
flex: 1;
}
</style>
未经作者授权，禁止转载
本文来自博客园，作者：CoderWGB，转载请注明原文链接：https://www.cnblogs.com/wgb1234/p/15724913.html
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