本文主要是介绍以时间（从后台读取，设置刷新的时间间隔）为横坐标的折线图，附带饼图的实现，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
1. 使用插件 Chart.js 下载地址：https://github.com/chartjs/Chart.js/blob/master/LICENSE.md
2. JS实现（需要根据后台数据进行解析）
$.ajax({type: "POST",cache: false,dataType: "json",url: g_pageName,data: {"code": "OPHS_24h_Bl_stat"},success: function (data) {var json = eval(data); //数组// 生成表格数据function randomBar(date, y1) {return {t: date.valueOf(),y: y1};}var dateFormat = 'YYYY-MM-DD HH:mm:ss';var date = moment(json[0][0], dateFormat);var likesd = [randomBar(date, json[1][0])];var likesf = [randomBar(date, json[2][0])];var likesr = [randomBar(date, json[3][0])];var likess = [randomBar(date, json[4][0])];var likesp = [randomBar(date, json[5][0])];var likesy = [randomBar(date, json[6][0])];var labels = [date];for(var j=1; j<json[0].length-1; j++) {date = date.clone().add(1, 'hour');likesd.push(randomBar(date, json[1][j]));likesf.push(randomBar(date, json[2][j]));likesr.push(randomBar(date, json[3][j]));likess.push(randomBar(date, json[4][j]));likesp.push(randomBar(date, json[5][j]));likesy.push(randomBar(date, json[6][j]));labels.push(date);}var cfg = {labels: labels,type: 'line',datasets: [{label: '目录告警',data: likesd,type: 'line',borderColor: window.chartColors.yellow,backgroundColor: window.chartColors.yellow,pointRadius: 1,fill: false,lineTension: 0.5,borderWidth: 1}, {label: '文件告警',data: likesf,type: 'line',borderColor: window.chartColors.blue,backgroundColor: window.chartColors.blue,pointRadius: 1,fill: false,lineTension: 0.5,borderWidth: 1}, {label: '注册表告警',data: likesr,type: 'line',borderColor: window.chartColors.green,backgroundColor: window.chartColors.green,pointRadius: 1,fill: false,lineTension: 0.5,borderWidth: 1}, {label: '服务告警',data: likess,type: 'line',borderColor: '#669999',backgroundColor: '#669999',pointRadius: 1,fill: false,lineTension: 0.5,borderWidth: 1}, {label: '进程告警',data: likesp,type: 'line',borderColor: '#99cccc',backgroundColor: '#99cccc',pointRadius: 1,fill: false,lineTension: 0.5,borderWidth: 1}, {label: '系统防篡改告警',data: likesy,type: 'line',borderColor: '#4A708B',backgroundColor: '#4A708B',pointRadius: 1,fill: false,lineTension: 0.5,borderWidth: 1}]};// var chart = new Chart(ctx, cfg);var ctx = document.getElementById('doChart1').getContext('2d');ctx.canvas.width = 1000;ctx.canvas.height = 350;window.myLine = Chart.Line(ctx, {data: cfg,options: {animation: false,responsive: true,hoverMode: 'index',stacked: false,legend: {display: true,position: 'right',labels: {boxWidth: 13,}},/*title: {display: true,text: '过去24小时告警'},*/scales: {xAxes: [{scaleLabel: {display: true,labelString: '时间'},type: 'time',time: {displayFormats: {minute: 'DD'+'日'+'HH'+'点',},tooltipFormat: 'YYYY'+'年'+'MM'+'月'+'DD'+'日'+'HH'+'点',},distribution: 'series',ticks: {source: 'labels'}}],yAxes: [{scaleLabel: {display: true,labelString: '告警次数'},type: 'linear', //only linear but allow scale type registration. This allows extensions to exist solely for log scale for instancedisplay: true,gridLines: {opacity: 0.5,lineWidth: 0.5},}],}}});},error: function(xhr, errmsg, err) {console.log(xhr.status + ": " + xhr.responseText);}});
这篇关于以时间（从后台读取，设置刷新的时间间隔）为横坐标的折线图，附带饼图的实现的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！
