echarts配合WebScoket一起使用解决数据实时刷新

echarts报表数据实时刷新可能有的人会想到使用定时器，其实有更简便的方法来解决这个问题， “WebSocket” 它可以做到服务器端主动向客户端发送数据。

不多说，直接上代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Bar.aspx.cs" Inherits="WebSocket.Bar" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
    <script src="jquery-2.1.4.min.js"></script>
    <script src="echarts.min.js"></script>
    <script>
        var myChart1;
        window.onload = function () {
             myChart1 = echarts.init(document.getElementById('bar'));
            ws();
        }
        function ws() {
            var socket;
            if (!window.WebSocket) {
                window.WebSocket = window.MozWebSocket;
            }
            if (window.WebSocket) {
                socket = new WebSocket("ws://192.168.64.131:8080/ws");
                socket.onmessage = function (event) {
                    var data = (event.data + '').split(',');
                    SetOptions(data);
                };
                socket.onopen = function (event) {
                    console.info("连接开启");
                    //var ta = document.getElementById('responseText');
                    //ta.value = "连接开启!";
                };
                socket.onclose = function (event) {
                    console.info("连接被关闭");
                    //var ta = document.getElementById('responseText');
                    //ta.value = ta.value + "连接被关闭";
                };
            } else {
                alert("你的浏览器不支持 WebSocket！");
            };
            
        }
        function SetOptions(data)
        {
            
            option = {
                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'
                    }
                },
                grid: {
                    left: '3%',
                    right: '4%',
                    bottom: '3%',
                    containLabel: true
                },
                xAxis: [
                    {
                        type: 'category',
                        data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
                        axisTick: {
                            alignWithLabel: true
                        }
                    }
                ],
                yAxis: [
                    {
                        type: 'value'
                    }
                ],
                series: [
                    {
                        name: '直接访问',
                        type: 'bar',
                        barWidth: '60%',
                        data: data
                    }
                ]
            };

            myChart1.setOption(option);
        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div id="bar" style="width:500px;height:400px;">
    
    </div>
    </form>
</body>
</html>

这是前端调用的代码，WebSocket服务器需自行搭建。

echarts配合WebScoket一起使用解决数据实时刷新

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