42 lines
1.4 KiB
JavaScript
42 lines
1.4 KiB
JavaScript
import fs from 'fs/promises';
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async function jsonToCsv() {
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try {
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const jsonFilePath = './data.json';
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const csvFilePath = './data.csv';
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const data = await fs.readFile(jsonFilePath, 'utf-8');
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const records = JSON.parse(data);
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if (records.length === 0) {
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console.log('data.json 文件为空，没有数据可转换为 CSV。');
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return;
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}
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// Extract headers from the first record
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const headers = Object.keys(records[0]);
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const csvRows = [];
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// Add headers as the first row in CSV
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csvRows.push(headers.map(header => `"${header}"`).join(','));
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// Convert each record to a CSV row
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for (const record of records) {
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const values = headers.map(header => {
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const value = record[header];
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// Handle potential commas or double quotes within the data by enclosing in double quotes
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// and escaping existing double quotes.
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return `"${String(value).replace(new RegExp('"', 'g'), '""')}"`;
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});
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csvRows.push(values.join(','));
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}
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await fs.writeFile(csvFilePath, csvRows.join('\n'), 'utf-8');
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console.log(`成功将 data.json 转换为 ${csvFilePath}`);
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} catch (error) {
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console.error('转换 JSON 到 CSV 时发生错误:', error.message);
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}
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}
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jsonToCsv();
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