{"id":183692,"date":"2024-11-10T06:56:20","date_gmt":"2024-11-09T22:56:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/183692\/"},"modified":"2024-11-10T06:56:21","modified_gmt":"2024-11-09T22:56:21","slug":"%e4%bd%bf%e7%94%a8echarts%e9%80%b2%e8%a1%8c%e6%95%b8%e6%93%9a%e5%8f%af%e8%a6%96%e5%8c%96%ef%bc%9a%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b5%90%e5%90%88%e6%8c%87%e5%8d%97-echarts%e6%80%8e%e9%ba%bc%e7%b5%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/183692\/","title":{"rendered":"\u4f7f\u7528Echarts\u9032\u884c\u6578\u64da\u53ef\u8996\u5316\uff1a\u6578\u64da\u5eab\u7d50\u5408\u6307\u5357 (echarts\u600e\u9ebc\u7d50\u5408\u6578\u64da\u5eab)"},"content":{"rendered":"

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Echarts\u7c21\u4ecb<\/h2>\n

Echarts\u662f\u7531\u767e\u5ea6\u958b\u767c\u7684\u4e00\u500b\u57fa\u65bcJavaScript\u7684\u53ef\u8996\u5316\u5eab\uff0c\u652f\u6301\u591a\u7a2e\u5716\u8868\u985e\u578b\uff0c\u5982\u6298\u7dda\u5716\u3001\u67f1\u72c0\u5716\u3001\u9905\u5716\u7b49\u3002\u5176\u512a\u52e2\u5728\u65bc\u9ad8\u6027\u80fd\u3001\u53ef\u64f4\u5c55\u6027\u548c\u8c50\u5bcc\u7684\u4ea4\u4e92\u529f\u80fd\uff0c\u9069\u5408\u7528\u65bc\u5404\u7a2eWeb\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002Echarts\u7684\u4f7f\u7528\u975e\u5e38\u9748\u6d3b\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u9700\u6c42\u81ea\u5b9a\u7fa9\u5716\u8868\u7684\u6a23\u5f0f\u548c\u884c\u70ba\u3002<\/p>\n

\u6578\u64da\u5eab\u9078\u64c7<\/h2>\n

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\u6578\u64da\u5eab\u9023\u63a5<\/h3>\n

\u5728\u524d\u7aef\u4f7f\u7528Echarts\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u5728\u5f8c\u7aef\u5efa\u7acb\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Node.js\u548cMySQL\u7684\u793a\u4f8b\uff1a<\/p>\n

const mysql = require('mysql');\nconst express = require('express');\nconst app = express();\n\nconst connection = mysql.createConnection({\n    host: 'localhost',\n    user: 'your_username',\n    password: 'your_password',\n    database: 'your_database'\n});\n\nconnection.connect((err) => {\n    if (err) throw err;\n    console.log('Connected to the database!');\n});\n\napp.get('\/data', (req, res) => {\n    connection.query('SELECT * FROM your_table', (err, results) => {\n        if (err) throw err;\n        res.json(results);\n    });\n});\n\napp.listen(3000, () => {\n    console.log('Server is running on port 3000');\n});<\/code><\/pre>\n
\u6574\u5408Echarts\u8207\u6578\u64da\u5eab<\/h2>\n
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<!DOCTYPE html>\n<html>\n<head>\n    <script src=\"https:\/\/cdn.jsdelivr.net\/npm\/echarts\/dist\/echarts.min.js\"><\/script>\n<\/head>\n<body>\n    <div id=\"main\" style=\"width: 600px;height:400px;\"><\/div>\n    <script>\n        fetch('\/data')\n            .then(response => response.json())\n            .then(data => {\n                const chartData = data.map(item => ({\n                    name: item.name,\n                    value: item.value\n                }));\n\n                const myChart = echarts.init(document.getElementById('main'));\n                const option = {\n                    title: {\n                        text: '\u6578\u64da\u53ef\u8996\u5316\u793a\u4f8b'\n                    },\n                    tooltip: {},\n                    xAxis: {\n                        type: 'category',\n                        data: chartData.map(item => item.name)\n                    },\n                    yAxis: {\n                        type: 'value'\n                    },\n                    series: [{\n                        name: '\u6578\u64da',\n                        type: 'bar',\n                        data: chartData.map(item => item.value)\n                    }]\n                };\n                myChart.setOption(option);\n            });\n    <\/script>\n<\/body>\n<\/html><\/code><\/pre>\n
\u6578\u64da\u53ef\u8996\u5316\u7684\u6700\u4f73\u5be6\u8e10<\/h2>\n