testxugang.github.io/test.html at main · helloxugang/testxugang.github.io · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 引入 ECharts 文件 -->
    <script src="https://cdn.jsdelivr.net/npm/echarts@5.1.2/dist/echarts.min.js"></script>
    <title>我爱中国</title>
</head>

<body>
    <button type="button" onclick="myFunction()">点我</button>
    <!-- 为ECharts准备一个具备大小（宽高）的Dom -->
    <div id="main" style="width: 600px;height:200px;float: right;"></div>
    <div id="main1" style="width: 600px;height:200px;float: right;"></div>
    <script>
        // 基于准备好的dom，初始化echarts实例
        var myChart = echarts.init(document.getElementById('main'));
        // 指定图表的配置项和数据
        var option = {
            title: {
                text: 'ECharts 入门示例'
            },
            tooltip: {},
            legend: {
                data: ['销量']
            },
            xAxis: {
                data: ["衬衫", "羊毛衫", "雪纺衫", "裤子"]
            },
            yAxis: {},
            series: [{
                name: '销量',
                type: 'bar',
                data: [5, 20, 36, 10, 10, 20]
            }]
        };
        // 使用刚指定的配置项和数据显示图表。
        myChart.setOption(option);


        // 第二个图表
        var option1 = {
            title: {
                text: '某站点用户访问来源',
                subtext: '纯属虚构',
                left: 'center'
            },
            tooltip: {
                trigger: 'item'
            },
            legend: {
                orient: 'vertical',
                left: 'left',
            },
            series: [
                {
                    name: '访问来源',
                    type: 'pie',
                    radius: '50%',
                    data: [
                        { value: 1048, name: '搜索引擎' },
                        { value: 735, name: '直接访问' },
                        { value: 580, name: '邮件营销' },
                        { value: 484, name: '联盟广告' },
                        { value: 300, name: '视频广告' }
                    ],
                    emphasis: {
                        itemStyle: {
                            shadowBlur: 10,
                            shadowOffsetX: 0,
                            shadowColor: 'rgba(0, 0, 0, 0.5)'
                        }
                    }
                }
            ]
        };
        var myChart1 = echarts.init(document.getElementById('main1'));
        myChart1.setOption(option1)


        function myFunction() {
            //使用ajax发送网络请求
            var xhr = new XMLHttpRequest();
            xhr.onload = function () {
                var obj = JSON.parse(xhr.responseText)
                myChart.setOption({
                    xAxis: {
                        data: [obj.name, "羊毛衫", "雪纺衫", "裤子", "高跟鞋", "袜子"]
                    },
                    series: [{
                        name: '销量',
                        type: 'bar',
                        data: [obj.age, Math.ceil(Math.random() * 50), Math.ceil(Math.random() * 50), 10, 10, 20]
                    }]
                })

            }

            xhr.onerror = function () {
                console.log("请求出错")
                alert("提示:请求错误!")
            }

            xhr.open("get", "http://localhost:8080/test/aaa", true)
            xhr.send();
        }
    </script>


</body>

</html>