利用Node转换Excel成JSON的详细步骤

import { fileURLToPath } from 'node:url'
import path from 'path';
import fs from 'fs';
import xlsx from 'node-xlsx';

// 获取 __dirname 的 ESM 写法
const __dirname = path.dirname(fileURLToPath(import.meta.url))
// xlsx文件路径
const xlsxPath = path.resolve(__dirname, '../../assets/JsonData');

// 事件， 玩家， 门派， 天赋， 武学
let dataNames = ['event', 'player', 'sect', 'talent', 'skill']
let dataPaths = {};
for(let iname of dataNames) {
    dataPaths[iname] = {
        xlsx: path.resolve(xlsxPath, `./${iname}Table.xlsx`),
        json: path.resolve(xlsxPath, `./${iname}.json`)
    }
}

// 读取数据表方法
const readFileData = (tableName)=>{
    let fname = dataPaths[tableName].xlsx
    const xlsxData = xlsx.parse(fs.readFileSync(fname));
    ......
}

const oneAndTwo = (arr)=>{
    if (arr.length <= 2) return [];
    let newarr = []
    for(let i = 2; i < arr.length; i++) {
        let newobj = {};
        for(let j = 0; j < arr[0].length; j++) {
            let jname = arr[0][j];
            newobj[jname] = (arr[i][j] != undefined)? arr[i][j] : null;
        }
        newarr.push(newobj)
    }
    return newarr;
}

// 写入JSON文件方法
const writeJson = (arr, jsonName)=>{
    let path = dataPaths[jsonName].json;
    let d = { data: arr }
    fs.writeFile(path, JSON.stringify(d), 'utf-8', (err)=>{
        console.log(`${jsonName}写入成功`);
    });
}