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let fs = require('fs');
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var express = require('express')
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// 读取JSON数据
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let jsonStr = fs.readFileSync('./data.json', {
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encoding: 'utf8'
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});
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let data = JSON.parse(jsonStr);
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// 创建Web服务器对象
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var app = express();
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// 静态资源处理
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app.use(express.static('public'));
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app.get('/data', (req, res) => {
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let [ ...arr ] = data
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let start = (req.query.page - 1) * req.query.pageSize;
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res.setHeader('X-Total-Count', data.length);
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res.send(arr.splice(start, req.query.pageSize));
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});
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app.listen(3000, () => {
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console.log('服务器启动成功，地址为：http://127.0.0.1:3000');
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});
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